diff options
| author | kaloz <kaloz@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-06-16 13:20:10 +0000 |
|---|---|---|
| committer | kaloz <kaloz@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-06-16 13:20:10 +0000 |
| commit | 54d4291e15abf62fcd2bd25a44b1055cdb919a07 (patch) | |
| tree | 15f78044c4d8d47b8f482e25f9e3fa4448b33cc9 | |
| parent | a53df816428b832a242bfe3a921a25a3ff91508b (diff) | |
backport mv643xx ethernet changes from the Marvell git repo
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11504 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | target/linux/orion/patches/060-mv643xx_git_backport.patch | 5345 |
1 files changed, 5345 insertions, 0 deletions
diff --git a/target/linux/orion/patches/060-mv643xx_git_backport.patch b/target/linux/orion/patches/060-mv643xx_git_backport.patch new file mode 100644 index 000000000..0b039224d --- /dev/null +++ b/target/linux/orion/patches/060-mv643xx_git_backport.patch @@ -0,0 +1,5345 @@ +--- a/drivers/net/mv643xx_eth.c ++++ b/drivers/net/mv643xx_eth.c +@@ -34,406 +34,145 @@ + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ ++ + #include <linux/init.h> + #include <linux/dma-mapping.h> + #include <linux/in.h> +-#include <linux/ip.h> + #include <linux/tcp.h> + #include <linux/udp.h> + #include <linux/etherdevice.h> +- +-#include <linux/bitops.h> + #include <linux/delay.h> + #include <linux/ethtool.h> + #include <linux/platform_device.h> +- + #include <linux/module.h> + #include <linux/kernel.h> + #include <linux/spinlock.h> + #include <linux/workqueue.h> + #include <linux/mii.h> +- + #include <linux/mv643xx_eth.h> +- + #include <asm/io.h> + #include <asm/types.h> +-#include <asm/pgtable.h> + #include <asm/system.h> +-#include <asm/delay.h> +-#include <asm/dma-mapping.h> + +-#define MV643XX_CHECKSUM_OFFLOAD_TX +-#define MV643XX_NAPI +-#define MV643XX_TX_FAST_REFILL +-#undef MV643XX_COAL +- +-#define MV643XX_TX_COAL 100 +-#ifdef MV643XX_COAL +-#define MV643XX_RX_COAL 100 +-#endif ++static char mv643xx_eth_driver_name[] = "mv643xx_eth"; ++static char mv643xx_eth_driver_version[] = "1.1"; + +-#ifdef MV643XX_CHECKSUM_OFFLOAD_TX ++#define MV643XX_ETH_CHECKSUM_OFFLOAD_TX ++#define MV643XX_ETH_NAPI ++#define MV643XX_ETH_TX_FAST_REFILL ++ ++#ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX + #define MAX_DESCS_PER_SKB (MAX_SKB_FRAGS + 1) + #else + #define MAX_DESCS_PER_SKB 1 + #endif + +-#define ETH_VLAN_HLEN 4 +-#define ETH_FCS_LEN 4 +-#define ETH_HW_IP_ALIGN 2 /* hw aligns IP header */ +-#define ETH_WRAPPER_LEN (ETH_HW_IP_ALIGN + ETH_HLEN + \ +- ETH_VLAN_HLEN + ETH_FCS_LEN) +-#define ETH_RX_SKB_SIZE (dev->mtu + ETH_WRAPPER_LEN + \ +- dma_get_cache_alignment()) +- + /* + * Registers shared between all ports. + */ +-#define PHY_ADDR_REG 0x0000 +-#define SMI_REG 0x0004 +-#define WINDOW_BASE(i) (0x0200 + ((i) << 3)) +-#define WINDOW_SIZE(i) (0x0204 + ((i) << 3)) +-#define WINDOW_REMAP_HIGH(i) (0x0280 + ((i) << 2)) +-#define WINDOW_BAR_ENABLE 0x0290 +-#define WINDOW_PROTECT(i) (0x0294 + ((i) << 4)) ++#define PHY_ADDR 0x0000 ++#define SMI_REG 0x0004 ++#define WINDOW_BASE(w) (0x0200 + ((w) << 3)) ++#define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) ++#define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) ++#define WINDOW_BAR_ENABLE 0x0290 ++#define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) + + /* + * Per-port registers. + */ +-#define PORT_CONFIG_REG(p) (0x0400 + ((p) << 10)) +-#define PORT_CONFIG_EXTEND_REG(p) (0x0404 + ((p) << 10)) +-#define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10)) +-#define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10)) +-#define SDMA_CONFIG_REG(p) (0x041c + ((p) << 10)) +-#define PORT_SERIAL_CONTROL_REG(p) (0x043c + ((p) << 10)) +-#define PORT_STATUS_REG(p) (0x0444 + ((p) << 10)) +-#define TRANSMIT_QUEUE_COMMAND_REG(p) (0x0448 + ((p) << 10)) +-#define MAXIMUM_TRANSMIT_UNIT(p) (0x0458 + ((p) << 10)) +-#define INTERRUPT_CAUSE_REG(p) (0x0460 + ((p) << 10)) +-#define INTERRUPT_CAUSE_EXTEND_REG(p) (0x0464 + ((p) << 10)) +-#define INTERRUPT_MASK_REG(p) (0x0468 + ((p) << 10)) +-#define INTERRUPT_EXTEND_MASK_REG(p) (0x046c + ((p) << 10)) +-#define TX_FIFO_URGENT_THRESHOLD_REG(p) (0x0474 + ((p) << 10)) +-#define RX_CURRENT_QUEUE_DESC_PTR_0(p) (0x060c + ((p) << 10)) +-#define RECEIVE_QUEUE_COMMAND_REG(p) (0x0680 + ((p) << 10)) +-#define TX_CURRENT_QUEUE_DESC_PTR_0(p) (0x06c0 + ((p) << 10)) +-#define MIB_COUNTERS_BASE(p) (0x1000 + ((p) << 7)) +-#define DA_FILTER_SPECIAL_MULTICAST_TABLE_BASE(p) (0x1400 + ((p) << 10)) +-#define DA_FILTER_OTHER_MULTICAST_TABLE_BASE(p) (0x1500 + ((p) << 10)) +-#define DA_FILTER_UNICAST_TABLE_BASE(p) (0x1600 + ((p) << 10)) +- +-/* These macros describe Ethernet Port configuration reg (Px_cR) bits */ +-#define UNICAST_NORMAL_MODE (0 << 0) +-#define UNICAST_PROMISCUOUS_MODE (1 << 0) +-#define DEFAULT_RX_QUEUE(queue) ((queue) << 1) +-#define DEFAULT_RX_ARP_QUEUE(queue) ((queue) << 4) +-#define RECEIVE_BC_IF_NOT_IP_OR_ARP (0 << 7) +-#define REJECT_BC_IF_NOT_IP_OR_ARP (1 << 7) +-#define RECEIVE_BC_IF_IP (0 << 8) +-#define REJECT_BC_IF_IP (1 << 8) +-#define RECEIVE_BC_IF_ARP (0 << 9) +-#define REJECT_BC_IF_ARP (1 << 9) +-#define TX_AM_NO_UPDATE_ERROR_SUMMARY (1 << 12) +-#define CAPTURE_TCP_FRAMES_DIS (0 << 14) +-#define CAPTURE_TCP_FRAMES_EN (1 << 14) +-#define CAPTURE_UDP_FRAMES_DIS (0 << 15) +-#define CAPTURE_UDP_FRAMES_EN (1 << 15) +-#define DEFAULT_RX_TCP_QUEUE(queue) ((queue) << 16) +-#define DEFAULT_RX_UDP_QUEUE(queue) ((queue) << 19) +-#define DEFAULT_RX_BPDU_QUEUE(queue) ((queue) << 22) +- +-#define PORT_CONFIG_DEFAULT_VALUE \ +- UNICAST_NORMAL_MODE | \ +- DEFAULT_RX_QUEUE(0) | \ +- DEFAULT_RX_ARP_QUEUE(0) | \ +- RECEIVE_BC_IF_NOT_IP_OR_ARP | \ +- RECEIVE_BC_IF_IP | \ +- RECEIVE_BC_IF_ARP | \ +- CAPTURE_TCP_FRAMES_DIS | \ +- CAPTURE_UDP_FRAMES_DIS | \ +- DEFAULT_RX_TCP_QUEUE(0) | \ +- DEFAULT_RX_UDP_QUEUE(0) | \ +- DEFAULT_RX_BPDU_QUEUE(0) +- +-/* These macros describe Ethernet Port configuration extend reg (Px_cXR) bits*/ +-#define CLASSIFY_EN (1 << 0) +-#define SPAN_BPDU_PACKETS_AS_NORMAL (0 << 1) +-#define SPAN_BPDU_PACKETS_TO_RX_QUEUE_7 (1 << 1) +-#define PARTITION_DISABLE (0 << 2) +-#define PARTITION_ENABLE (1 << 2) +- +-#define PORT_CONFIG_EXTEND_DEFAULT_VALUE \ +- SPAN_BPDU_PACKETS_AS_NORMAL | \ +- PARTITION_DISABLE +- +-/* These macros describe Ethernet Port Sdma configuration reg (SDCR) bits */ +-#define RIFB (1 << 0) +-#define RX_BURST_SIZE_1_64BIT (0 << 1) +-#define RX_BURST_SIZE_2_64BIT (1 << 1) ++#define PORT_CONFIG(p) (0x0400 + ((p) << 10)) ++#define UNICAST_PROMISCUOUS_MODE 0x00000001 ++#define PORT_CONFIG_EXT(p) (0x0404 + ((p) << 10)) ++#define MAC_ADDR_LOW(p) (0x0414 + ((p) << 10)) ++#define MAC_ADDR_HIGH(p) (0x0418 + ((p) << 10)) ++#define SDMA_CONFIG(p) (0x041c + ((p) << 10)) ++#define PORT_SERIAL_CONTROL(p) (0x043c + ((p) << 10)) ++#define PORT_STATUS(p) (0x0444 + ((p) << 10)) ++#define TX_FIFO_EMPTY 0x00000400 ++#define TXQ_COMMAND(p) (0x0448 + ((p) << 10)) ++#define TXQ_FIX_PRIO_CONF(p) (0x044c + ((p) << 10)) ++#define TX_BW_RATE(p) (0x0450 + ((p) << 10)) ++#define TX_BW_MTU(p) (0x0458 + ((p) << 10)) ++#define TX_BW_BURST(p) (0x045c + ((p) << 10)) ++#define INT_CAUSE(p) (0x0460 + ((p) << 10)) ++#define INT_TX_END 0x07f80000 ++#define INT_RX 0x0007fbfc ++#define INT_EXT 0x00000002 ++#define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10)) ++#define INT_EXT_LINK 0x00100000 ++#define INT_EXT_PHY 0x00010000 ++#define INT_EXT_TX_ERROR_0 0x00000100 ++#define INT_EXT_TX_0 0x00000001 ++#define INT_EXT_TX 0x0000ffff ++#define INT_MASK(p) (0x0468 + ((p) << 10)) ++#define INT_MASK_EXT(p) (0x046c + ((p) << 10)) ++#define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) ++#define TXQ_FIX_PRIO_CONF_MOVED(p) (0x04dc + ((p) << 10)) ++#define TX_BW_RATE_MOVED(p) (0x04e0 + ((p) << 10)) ++#define TX_BW_MTU_MOVED(p) (0x04e8 + ((p) << 10)) ++#define TX_BW_BURST_MOVED(p) (0x04ec + ((p) << 10)) ++#define RXQ_CURRENT_DESC_PTR(p, q) (0x060c + ((p) << 10) + ((q) << 4)) ++#define RXQ_COMMAND(p) (0x0680 + ((p) << 10)) ++#define TXQ_CURRENT_DESC_PTR(p, q) (0x06c0 + ((p) << 10) + ((q) << 2)) ++#define TXQ_BW_TOKENS(p, q) (0x0700 + ((p) << 10) + ((q) << 4)) ++#define TXQ_BW_CONF(p, q) (0x0704 + ((p) << 10) + ((q) << 4)) ++#define TXQ_BW_WRR_CONF(p, q) (0x0708 + ((p) << 10) + ((q) << 4)) ++#define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) ++#define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) ++#define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) ++#define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) ++ ++ ++/* ++ * SDMA configuration register. ++ */ + #define RX_BURST_SIZE_4_64BIT (2 << 1) +-#define RX_BURST_SIZE_8_64BIT (3 << 1) +-#define RX_BURST_SIZE_16_64BIT (4 << 1) + #define BLM_RX_NO_SWAP (1 << 4) +-#define BLM_RX_BYTE_SWAP (0 << 4) + #define BLM_TX_NO_SWAP (1 << 5) +-#define BLM_TX_BYTE_SWAP (0 << 5) +-#define DESCRIPTORS_BYTE_SWAP (1 << 6) +-#define DESCRIPTORS_NO_SWAP (0 << 6) +-#define IPG_INT_RX(value) (((value) & 0x3fff) << 8) +-#define TX_BURST_SIZE_1_64BIT (0 << 22) +-#define TX_BURST_SIZE_2_64BIT (1 << 22) + #define TX_BURST_SIZE_4_64BIT (2 << 22) +-#define TX_BURST_SIZE_8_64BIT (3 << 22) +-#define TX_BURST_SIZE_16_64BIT (4 << 22) + + #if defined(__BIG_ENDIAN) + #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ + RX_BURST_SIZE_4_64BIT | \ +- IPG_INT_RX(0) | \ + TX_BURST_SIZE_4_64BIT + #elif defined(__LITTLE_ENDIAN) + #define PORT_SDMA_CONFIG_DEFAULT_VALUE \ + RX_BURST_SIZE_4_64BIT | \ + BLM_RX_NO_SWAP | \ + BLM_TX_NO_SWAP | \ +- IPG_INT_RX(0) | \ + TX_BURST_SIZE_4_64BIT + #else + #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined + #endif + +-/* These macros describe Ethernet Port serial control reg (PSCR) bits */ +-#define SERIAL_PORT_DISABLE (0 << 0) +-#define SERIAL_PORT_ENABLE (1 << 0) +-#define DO_NOT_FORCE_LINK_PASS (0 << 1) +-#define FORCE_LINK_PASS (1 << 1) +-#define ENABLE_AUTO_NEG_FOR_DUPLX (0 << 2) +-#define DISABLE_AUTO_NEG_FOR_DUPLX (1 << 2) +-#define ENABLE_AUTO_NEG_FOR_FLOW_CTRL (0 << 3) +-#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) +-#define ADV_NO_FLOW_CTRL (0 << 4) +-#define ADV_SYMMETRIC_FLOW_CTRL (1 << 4) +-#define FORCE_FC_MODE_NO_PAUSE_DIS_TX (0 << 5) +-#define FORCE_FC_MODE_TX_PAUSE_DIS (1 << 5) +-#define FORCE_BP_MODE_NO_JAM (0 << 7) +-#define FORCE_BP_MODE_JAM_TX (1 << 7) +-#define FORCE_BP_MODE_JAM_TX_ON_RX_ERR (2 << 7) +-#define SERIAL_PORT_CONTROL_RESERVED (1 << 9) +-#define FORCE_LINK_FAIL (0 << 10) +-#define DO_NOT_FORCE_LINK_FAIL (1 << 10) +-#define RETRANSMIT_16_ATTEMPTS (0 << 11) +-#define RETRANSMIT_FOREVER (1 << 11) +-#define ENABLE_AUTO_NEG_SPEED_GMII (0 << 13) +-#define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) +-#define DTE_ADV_0 (0 << 14) +-#define DTE_ADV_1 (1 << 14) +-#define DISABLE_AUTO_NEG_BYPASS (0 << 15) +-#define ENABLE_AUTO_NEG_BYPASS (1 << 15) +-#define AUTO_NEG_NO_CHANGE (0 << 16) +-#define RESTART_AUTO_NEG (1 << 16) +-#define MAX_RX_PACKET_1518BYTE (0 << 17) ++ ++/* ++ * Port serial control register. ++ */ ++#define SET_MII_SPEED_TO_100 (1 << 24) ++#define SET_GMII_SPEED_TO_1000 (1 << 23) ++#define SET_FULL_DUPLEX_MODE (1 << 21) + #define MAX_RX_PACKET_1522BYTE (1 << 17) +-#define MAX_RX_PACKET_1552BYTE (2 << 17) +-#define MAX_RX_PACKET_9022BYTE (3 << 17) +-#define MAX_RX_PACKET_9192BYTE (4 << 17) + #define MAX_RX_PACKET_9700BYTE (5 << 17) + #define MAX_RX_PACKET_MASK (7 << 17) +-#define CLR_EXT_LOOPBACK (0 << 20) +-#define SET_EXT_LOOPBACK (1 << 20) +-#define SET_HALF_DUPLEX_MODE (0 << 21) +-#define SET_FULL_DUPLEX_MODE (1 << 21) +-#define DISABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX (0 << 22) +-#define ENABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX (1 << 22) +-#define SET_GMII_SPEED_TO_10_100 (0 << 23) +-#define SET_GMII_SPEED_TO_1000 (1 << 23) +-#define SET_MII_SPEED_TO_10 (0 << 24) +-#define SET_MII_SPEED_TO_100 (1 << 24) ++#define DISABLE_AUTO_NEG_SPEED_GMII (1 << 13) ++#define DO_NOT_FORCE_LINK_FAIL (1 << 10) ++#define SERIAL_PORT_CONTROL_RESERVED (1 << 9) ++#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL (1 << 3) ++#define DISABLE_AUTO_NEG_FOR_DUPLEX (1 << 2) ++#define FORCE_LINK_PASS (1 << 1) ++#define SERIAL_PORT_ENABLE (1 << 0) ++ ++#define DEFAULT_RX_QUEUE_SIZE 400 ++#define DEFAULT_TX_QUEUE_SIZE 800 + +-#define PORT_SERIAL_CONTROL_DEFAULT_VALUE \ +- DO_NOT_FORCE_LINK_PASS | \ +- ENABLE_AUTO_NEG_FOR_DUPLX | \ +- DISABLE_AUTO_NEG_FOR_FLOW_CTRL | \ +- ADV_SYMMETRIC_FLOW_CTRL | \ +- FORCE_FC_MODE_NO_PAUSE_DIS_TX | \ +- FORCE_BP_MODE_NO_JAM | \ +- (1 << 9) /* reserved */ | \ +- DO_NOT_FORCE_LINK_FAIL | \ +- RETRANSMIT_16_ATTEMPTS | \ +- ENABLE_AUTO_NEG_SPEED_GMII | \ +- DTE_ADV_0 | \ +- DISABLE_AUTO_NEG_BYPASS | \ +- AUTO_NEG_NO_CHANGE | \ +- MAX_RX_PACKET_9700BYTE | \ +- CLR_EXT_LOOPBACK | \ +- SET_FULL_DUPLEX_MODE | \ +- ENABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX +- +-/* These macros describe Ethernet Serial Status reg (PSR) bits */ +-#define PORT_STATUS_MODE_10_BIT (1 << 0) +-#define PORT_STATUS_LINK_UP (1 << 1) +-#define PORT_STATUS_FULL_DUPLEX (1 << 2) +-#define PORT_STATUS_FLOW_CONTROL (1 << 3) +-#define PORT_STATUS_GMII_1000 (1 << 4) +-#define PORT_STATUS_MII_100 (1 << 5) +-/* PSR bit 6 is undocumented */ +-#define PORT_STATUS_TX_IN_PROGRESS (1 << 7) +-#define PORT_STATUS_AUTONEG_BYPASSED (1 << 8) +-#define PORT_STATUS_PARTITION (1 << 9) +-#define PORT_STATUS_TX_FIFO_EMPTY (1 << 10) +-/* PSR bits 11-31 are reserved */ +- +-#define PORT_DEFAULT_TRANSMIT_QUEUE_SIZE 800 +-#define PORT_DEFAULT_RECEIVE_QUEUE_SIZE 400 +- +-#define DESC_SIZE 64 +- +-#define ETH_RX_QUEUES_ENABLED (1 << 0) /* use only Q0 for receive */ +-#define ETH_TX_QUEUES_ENABLED (1 << 0) /* use only Q0 for transmit */ +- +-#define ETH_INT_CAUSE_RX_DONE (ETH_RX_QUEUES_ENABLED << 2) +-#define ETH_INT_CAUSE_RX_ERROR (ETH_RX_QUEUES_ENABLED << 9) +-#define ETH_INT_CAUSE_RX (ETH_INT_CAUSE_RX_DONE | ETH_INT_CAUSE_RX_ERROR) +-#define ETH_INT_CAUSE_EXT 0x00000002 +-#define ETH_INT_UNMASK_ALL (ETH_INT_CAUSE_RX | ETH_INT_CAUSE_EXT) +- +-#define ETH_INT_CAUSE_TX_DONE (ETH_TX_QUEUES_ENABLED << 0) +-#define ETH_INT_CAUSE_TX_ERROR (ETH_TX_QUEUES_ENABLED << 8) +-#define ETH_INT_CAUSE_TX (ETH_INT_CAUSE_TX_DONE | ETH_INT_CAUSE_TX_ERROR) +-#define ETH_INT_CAUSE_PHY 0x00010000 +-#define ETH_INT_CAUSE_STATE 0x00100000 +-#define ETH_INT_UNMASK_ALL_EXT (ETH_INT_CAUSE_TX | ETH_INT_CAUSE_PHY | \ +- ETH_INT_CAUSE_STATE) +- +-#define ETH_INT_MASK_ALL 0x00000000 +-#define ETH_INT_MASK_ALL_EXT 0x00000000 +- +-#define PHY_WAIT_ITERATIONS 1000 /* 1000 iterations * 10uS = 10mS max */ +-#define PHY_WAIT_MICRO_SECONDS 10 +- +-/* Buffer offset from buffer pointer */ +-#define RX_BUF_OFFSET 0x2 +- +-/* Gigabit Ethernet Unit Global Registers */ +- +-/* MIB Counters register definitions */ +-#define ETH_MIB_GOOD_OCTETS_RECEIVED_LOW 0x0 +-#define ETH_MIB_GOOD_OCTETS_RECEIVED_HIGH 0x4 +-#define ETH_MIB_BAD_OCTETS_RECEIVED 0x8 +-#define ETH_MIB_INTERNAL_MAC_TRANSMIT_ERR 0xc +-#define ETH_MIB_GOOD_FRAMES_RECEIVED 0x10 +-#define ETH_MIB_BAD_FRAMES_RECEIVED 0x14 +-#define ETH_MIB_BROADCAST_FRAMES_RECEIVED 0x18 +-#define ETH_MIB_MULTICAST_FRAMES_RECEIVED 0x1c +-#define ETH_MIB_FRAMES_64_OCTETS 0x20 +-#define ETH_MIB_FRAMES_65_TO_127_OCTETS 0x24 +-#define ETH_MIB_FRAMES_128_TO_255_OCTETS 0x28 +-#define ETH_MIB_FRAMES_256_TO_511_OCTETS 0x2c +-#define ETH_MIB_FRAMES_512_TO_1023_OCTETS 0x30 +-#define ETH_MIB_FRAMES_1024_TO_MAX_OCTETS 0x34 +-#define ETH_MIB_GOOD_OCTETS_SENT_LOW 0x38 +-#define ETH_MIB_GOOD_OCTETS_SENT_HIGH 0x3c +-#define ETH_MIB_GOOD_FRAMES_SENT 0x40 +-#define ETH_MIB_EXCESSIVE_COLLISION 0x44 +-#define ETH_MIB_MULTICAST_FRAMES_SENT 0x48 +-#define ETH_MIB_BROADCAST_FRAMES_SENT 0x4c +-#define ETH_MIB_UNREC_MAC_CONTROL_RECEIVED 0x50 +-#define ETH_MIB_FC_SENT 0x54 +-#define ETH_MIB_GOOD_FC_RECEIVED 0x58 +-#define ETH_MIB_BAD_FC_RECEIVED 0x5c +-#define ETH_MIB_UNDERSIZE_RECEIVED 0x60 +-#define ETH_MIB_FRAGMENTS_RECEIVED 0x64 +-#define ETH_MIB_OVERSIZE_RECEIVED 0x68 +-#define ETH_MIB_JABBER_RECEIVED 0x6c +-#define ETH_MIB_MAC_RECEIVE_ERROR 0x70 +-#define ETH_MIB_BAD_CRC_EVENT 0x74 +-#define ETH_MIB_COLLISION 0x78 +-#define ETH_MIB_LATE_COLLISION 0x7c +- +-/* Port serial status reg (PSR) */ +-#define ETH_INTERFACE_PCM 0x00000001 +-#define ETH_LINK_IS_UP 0x00000002 +-#define ETH_PORT_AT_FULL_DUPLEX 0x00000004 +-#define ETH_RX_FLOW_CTRL_ENABLED 0x00000008 +-#define ETH_GMII_SPEED_1000 0x00000010 +-#define ETH_MII_SPEED_100 0x00000020 +-#define ETH_TX_IN_PROGRESS 0x00000080 +-#define ETH_BYPASS_ACTIVE 0x00000100 +-#define ETH_PORT_AT_PARTITION_STATE 0x00000200 +-#define ETH_PORT_TX_FIFO_EMPTY 0x00000400 +- +-/* SMI reg */ +-#define ETH_SMI_BUSY 0x10000000 /* 0 - Write, 1 - Read */ +-#define ETH_SMI_READ_VALID 0x08000000 /* 0 - Write, 1 - Read */ +-#define ETH_SMI_OPCODE_WRITE 0 /* Completion of Read */ +-#define ETH_SMI_OPCODE_READ 0x04000000 /* Operation is in progress */ +- +-/* Interrupt Cause Register Bit Definitions */ +- +-/* SDMA command status fields macros */ +- +-/* Tx & Rx descriptors status */ +-#define ETH_ERROR_SUMMARY 0x00000001 +- +-/* Tx & Rx descriptors command */ +-#define ETH_BUFFER_OWNED_BY_DMA 0x80000000 +- +-/* Tx descriptors status */ +-#define ETH_LC_ERROR 0 +-#define ETH_UR_ERROR 0x00000002 +-#define ETH_RL_ERROR 0x00000004 +-#define ETH_LLC_SNAP_FORMAT 0x00000200 +- +-/* Rx descriptors status */ +-#define ETH_OVERRUN_ERROR 0x00000002 +-#define ETH_MAX_FRAME_LENGTH_ERROR 0x00000004 +-#define ETH_RESOURCE_ERROR 0x00000006 +-#define ETH_VLAN_TAGGED 0x00080000 +-#define ETH_BPDU_FRAME 0x00100000 +-#define ETH_UDP_FRAME_OVER_IP_V_4 0x00200000 +-#define ETH_OTHER_FRAME_TYPE 0x00400000 +-#define ETH_LAYER_2_IS_ETH_V_2 0x00800000 +-#define ETH_FRAME_TYPE_IP_V_4 0x01000000 +-#define ETH_FRAME_HEADER_OK 0x02000000 +-#define ETH_RX_LAST_DESC 0x04000000 +-#define ETH_RX_FIRST_DESC 0x08000000 +-#define ETH_UNKNOWN_DESTINATION_ADDR 0x10000000 +-#define ETH_RX_ENABLE_INTERRUPT 0x20000000 +-#define ETH_LAYER_4_CHECKSUM_OK 0x40000000 +- +-/* Rx descriptors byte count */ +-#define ETH_FRAME_FRAGMENTED 0x00000004 +- +-/* Tx descriptors command */ +-#define ETH_LAYER_4_CHECKSUM_FIRST_DESC 0x00000400 +-#define ETH_FRAME_SET_TO_VLAN 0x00008000 +-#define ETH_UDP_FRAME 0x00010000 +-#define ETH_GEN_TCP_UDP_CHECKSUM 0x00020000 +-#define ETH_GEN_IP_V_4_CHECKSUM 0x00040000 +-#define ETH_ZERO_PADDING 0x00080000 +-#define ETH_TX_LAST_DESC 0x00100000 +-#define ETH_TX_FIRST_DESC 0x00200000 +-#define ETH_GEN_CRC 0x00400000 +-#define ETH_TX_ENABLE_INTERRUPT 0x00800000 +-#define ETH_AUTO_MODE 0x40000000 +- +-#define ETH_TX_IHL_SHIFT 11 +- +-/* typedefs */ +- +-typedef enum _eth_func_ret_status { +- ETH_OK, /* Returned as expected. */ +- ETH_ERROR, /* Fundamental error. */ +- ETH_RETRY, /* Could not process request. Try later.*/ +- ETH_END_OF_JOB, /* Ring has nothing to process. */ +- ETH_QUEUE_FULL, /* Ring resource error. */ +- ETH_QUEUE_LAST_RESOURCE /* Ring resources about to exhaust. */ +-} ETH_FUNC_RET_STATUS; + +-/* These are for big-endian machines. Little endian needs different +- * definitions. ++/* ++ * RX/TX descriptors. + */ + #if defined(__BIG_ENDIAN) +-struct eth_rx_desc { ++struct rx_desc { + u16 byte_cnt; /* Descriptor buffer byte count */ + u16 buf_size; /* Buffer size */ + u32 cmd_sts; /* Descriptor command status */ +@@ -441,7 +180,7 @@ + u32 buf_ptr; /* Descriptor buffer pointer */ + }; + +-struct eth_tx_desc { ++struct tx_desc { + u16 byte_cnt; /* buffer byte count */ + u16 l4i_chk; /* CPU provided TCP checksum */ + u32 cmd_sts; /* Command/status field */ +@@ -449,7 +188,7 @@ + u32 buf_ptr; /* pointer to buffer for this descriptor*/ + }; + #elif defined(__LITTLE_ENDIAN) +-struct eth_rx_desc { ++struct rx_desc { + u32 cmd_sts; /* Descriptor command status */ + u16 buf_size; /* Buffer size */ + u16 byte_cnt; /* Descriptor buffer byte count */ +@@ -457,7 +196,7 @@ + u32 next_desc_ptr; /* Next descriptor pointer */ + }; + +-struct eth_tx_desc { ++struct tx_desc { + u32 cmd_sts; /* Command/status field */ + u16 l4i_chk; /* CPU provided TCP checksum */ + u16 byte_cnt; /* buffer byte count */ +@@ -468,18 +207,59 @@ + #error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined + #endif + +-/* Unified struct for Rx and Tx operations. The user is not required to */ +-/* be familier with neither Tx nor Rx descriptors. */ +-struct pkt_info { +- unsigned short byte_cnt; /* Descriptor buffer byte count */ +- unsigned short l4i_chk; /* Tx CPU provided TCP Checksum */ +- unsigned int cmd_sts; /* Descriptor command status */ +- dma_addr_t buf_ptr; /* Descriptor buffer pointer */ +- struct sk_buff *return_info; /* User resource return information */ ++/* RX & TX descriptor command */ ++#define BUFFER_OWNED_BY_DMA 0x80000000 ++ ++/* RX & TX descriptor status */ ++#define ERROR_SUMMARY 0x00000001 ++ ++/* RX descriptor status */ ++#define LAYER_4_CHECKSUM_OK 0x40000000 ++#define RX_ENABLE_INTERRUPT 0x20000000 ++#define RX_FIRST_DESC 0x08000000 ++#define RX_LAST_DESC 0x04000000 ++ ++/* TX descriptor command */ ++#define TX_ENABLE_INTERRUPT 0x00800000 ++#define GEN_CRC 0x00400000 ++#define TX_FIRST_DESC 0x00200000 ++#define TX_LAST_DESC 0x00100000 ++#define ZERO_PADDING 0x00080000 ++#define GEN_IP_V4_CHECKSUM 0x00040000 ++#define GEN_TCP_UDP_CHECKSUM 0x00020000 ++#define UDP_FRAME 0x00010000 ++ ++#define TX_IHL_SHIFT 11 ++ ++ ++/* global *******************************************************************/ ++struct mv643xx_eth_shared_private { ++ /* ++ * Ethernet controller base address. ++ */ ++ void __iomem *base; ++ ++ /* ++ * Protects access to SMI_REG, which is shared between ports. ++ */ ++ spinlock_t phy_lock; ++ ++ /* ++ * Per-port MBUS window access register value. ++ */ ++ u32 win_protect; ++ ++ /* ++ * Hardware-specific parameters. ++ */ ++ unsigned int t_clk; ++ int extended_rx_coal_limit; ++ int tx_bw_control_moved; + }; + +-/* Ethernet port specific information */ +-struct mv643xx_mib_counters { ++ ++/* per-port *****************************************************************/ ++struct mib_counters { + u64 good_octets_received; + u32 bad_octets_received; + u32 internal_mac_transmit_err; +@@ -512,461 +292,282 @@ + u32 late_collision; + }; + +-struct mv643xx_shared_private { +- void __iomem *eth_base; +- +- /* used to protect SMI_REG, which is shared across ports */ +- spinlock_t phy_lock; +- +- u32 win_protect; +- +- unsigned int t_clk; +-}; +- +-struct mv643xx_private { +- struct mv643xx_shared_private *shared; +- int port_num; /* User Ethernet port number */ +- +- struct mv643xx_shared_private *shared_smi; ++struct rx_queue { ++ int index; + +- u32 rx_sram_addr; /* Base address of rx sram area */ +- u32 rx_sram_size; /* Size of rx sram area */ +- u32 tx_sram_addr; /* Base address of tx sram area */ +- u32 tx_sram_size; /* Size of tx sram area */ ++ int rx_ring_size; + +- int rx_resource_err; /* Rx ring resource error flag */ ++ int rx_desc_count; ++ int rx_curr_desc; ++ int rx_used_desc; + +- /* Tx/Rx rings managment indexes fields. For driver use */ ++ struct rx_desc *rx_desc_area; ++ dma_addr_t rx_desc_dma; ++ int rx_desc_area_size; ++ struct sk_buff **rx_skb; + +- /* Next available and first returning Rx resource */ +- int rx_curr_desc_q, rx_used_desc_q; ++ struct timer_list rx_oom; ++}; + +- /* Next available and first returning Tx resource */ +- int tx_curr_desc_q, tx_used_desc_q; ++struct tx_queue { ++ int index; + +-#ifdef MV643XX_TX_FAST_REFILL +- u32 tx_clean_threshold; +-#endif ++ int tx_ring_size; + +- struct eth_rx_desc *p_rx_desc_area; +- dma_addr_t rx_desc_dma; +- int rx_desc_area_size; +- struct sk_buff **rx_skb; ++ int tx_desc_count; ++ int tx_curr_desc; ++ int tx_used_desc; + +- struct eth_tx_desc *p_tx_desc_area; ++ struct tx_desc *tx_desc_area; + dma_addr_t tx_desc_dma; + int tx_desc_area_size; + struct sk_buff **tx_skb; ++}; + +- struct work_struct tx_timeout_task; ++struct mv643xx_eth_private { ++ struct mv643xx_eth_shared_private *shared; ++ int port_num; + + struct net_device *dev; +- struct napi_struct napi; +- struct net_device_stats stats; +- struct mv643xx_mib_counters mib_counters; ++ ++ struct mv643xx_eth_shared_private *shared_smi; ++ int phy_addr; ++ + spinlock_t lock; +- /* Size of Tx Ring per queue */ +- int tx_ring_size; +- /* Number of tx descriptors in use */ +- int tx_desc_count; +- /* Size of Rx Ring per queue */ +- int rx_ring_size; +- /* Number of rx descriptors in use */ +- int rx_desc_count; ++ ++ struct mib_counters mib_counters; ++ struct work_struct tx_timeout_task; ++ struct mii_if_info mii; + + /* +- * Used in case RX Ring is empty, which can be caused when +- * system does not have resources (skb's) ++ * RX state. + */ +- struct timer_list timeout; +- +- u32 rx_int_coal; +- u32 tx_int_coal; +- struct mii_if_info mii; +-}; ++ int default_rx_ring_size; ++ unsigned long rx_desc_sram_addr; ++ int rx_desc_sram_size; ++ u8 rxq_mask; ++ int rxq_primary; ++ struct napi_struct napi; ++ struct rx_queue rxq[8]; + +-/* Static function declarations */ +-static void eth_port_init(struct mv643xx_private *mp); +-static void eth_port_reset(struct mv643xx_private *mp); +-static void eth_port_start(struct net_device *dev); +- +-static void ethernet_phy_reset(struct mv643xx_private *mp); +- +-static void eth_port_write_smi_reg(struct mv643xx_private *mp, +- unsigned int phy_reg, unsigned int value); +- +-static void eth_port_read_smi_reg(struct mv643xx_private *mp, +- unsigned int phy_reg, unsigned int *value); +- +-static void eth_clear_mib_counters(struct mv643xx_private *mp); +- +-static ETH_FUNC_RET_STATUS eth_port_receive(struct mv643xx_private *mp, +- struct pkt_info *p_pkt_info); +-static ETH_FUNC_RET_STATUS eth_rx_return_buff(struct mv643xx_private *mp, +- struct pkt_info *p_pkt_info); +- +-static void eth_port_uc_addr_get(struct mv643xx_private *mp, +- unsigned char *p_addr); +-static void eth_port_uc_addr_set(struct mv643xx_private *mp, +- unsigned char *p_addr); +-static void eth_port_set_multicast_list(struct net_device *); +-static void mv643xx_eth_port_enable_tx(struct mv643xx_private *mp, +- unsigned int queues); +-static void mv643xx_eth_port_enable_rx(struct mv643xx_private *mp, +- unsigned int queues); +-static unsigned int mv643xx_eth_port_disable_tx(struct mv643xx_private *mp); +-static unsigned int mv643xx_eth_port_disable_rx(struct mv643xx_private *mp); +-static int mv643xx_eth_open(struct net_device *); +-static int mv643xx_eth_stop(struct net_device *); +-static void eth_port_init_mac_tables(struct mv643xx_private *mp); +-#ifdef MV643XX_NAPI +-static int mv643xx_poll(struct napi_struct *napi, int budget); ++ /* ++ * TX state. ++ */ ++ int default_tx_ring_size; ++ unsigned long tx_desc_sram_addr; ++ int tx_desc_sram_size; ++ u8 txq_mask; ++ int txq_primary; ++ struct tx_queue txq[8]; ++#ifdef MV643XX_ETH_TX_FAST_REFILL ++ int tx_clean_threshold; + #endif +-static int ethernet_phy_get(struct mv643xx_private *mp); +-static void ethernet_phy_set(struct mv643xx_private *mp, int phy_addr); +-static int ethernet_phy_detect(struct mv643xx_private *mp); +-static int mv643xx_mdio_read(struct net_device *dev, int phy_id, int location); +-static void mv643xx_mdio_write(struct net_device *dev, int phy_id, int location, int val); +-static int mv643xx_eth_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); +-static const struct ethtool_ops mv643xx_ethtool_ops; ++}; + +-static char mv643xx_driver_name[] = "mv643xx_eth"; +-static char mv643xx_driver_version[] = "1.0"; + +-static inline u32 rdl(struct mv643xx_private *mp, int offset) ++/* port register accessors **************************************************/ ++static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) + { +- return readl(mp->shared->eth_base + offset); ++ return readl(mp->shared->base + offset); + } + +-static inline void wrl(struct mv643xx_private *mp, int offset, u32 data) ++static inline void wrl(struct mv643xx_eth_private *mp, int offset, u32 data) + { +- writel(data, mp->shared->eth_base + offset); ++ writel(data, mp->shared->base + offset); + } + +-/* +- * Changes MTU (maximum transfer unit) of the gigabit ethenret port +- * +- * Input : pointer to ethernet interface network device structure +- * new mtu size +- * Output : 0 upon success, -EINVAL upon failure +- */ +-static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) +-{ +- if ((new_mtu > 9500) || (new_mtu < 64)) +- return -EINVAL; +- +- dev->mtu = new_mtu; +- if (!netif_running(dev)) +- return 0; +- +- /* +- * Stop and then re-open the interface. This will allocate RX +- * skbs of the new MTU. +- * There is a possible danger that the open will not succeed, +- * due to memory being full, which might fail the open function. +- */ +- mv643xx_eth_stop(dev); +- if (mv643xx_eth_open(dev)) { +- printk(KERN_ERR "%s: Fatal error on opening device\n", +- dev->name); +- } +- +- return 0; +-} + +-/* +- * mv643xx_eth_rx_refill_descs +- * +- * Fills / refills RX queue on a certain gigabit ethernet port +- * +- * Input : pointer to ethernet interface network device structure +- * Output : N/A +- */ +-static void mv643xx_eth_rx_refill_descs(struct net_device *dev) ++/* rxq/txq helper functions *************************************************/ ++static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- struct pkt_info pkt_info; +- struct sk_buff *skb; +- int unaligned; +- +- while (mp->rx_desc_count < mp->rx_ring_size) { +- skb = dev_alloc_skb(ETH_RX_SKB_SIZE + dma_get_cache_alignment()); +- if (!skb) +- break; +- mp->rx_desc_count++; +- unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); +- if (unaligned) +- skb_reserve(skb, dma_get_cache_alignment() - unaligned); +- pkt_info.cmd_sts = ETH_RX_ENABLE_INTERRUPT; +- pkt_info.byte_cnt = ETH_RX_SKB_SIZE; +- pkt_info.buf_ptr = dma_map_single(NULL, skb->data, +- ETH_RX_SKB_SIZE, DMA_FROM_DEVICE); +- pkt_info.return_info = skb; +- if (eth_rx_return_buff(mp, &pkt_info) != ETH_OK) { +- printk(KERN_ERR +- "%s: Error allocating RX Ring\n", dev->name); +- break; +- } +- skb_reserve(skb, ETH_HW_IP_ALIGN); +- } +- /* +- * If RX ring is empty of SKB, set a timer to try allocating +- * again at a later time. +- */ +- if (mp->rx_desc_count == 0) { +- printk(KERN_INFO "%s: Rx ring is empty\n", dev->name); +- mp->timeout.expires = jiffies + (HZ / 10); /* 100 mSec */ +- add_timer(&mp->timeout); +- } ++ return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); + } + +-/* +- * mv643xx_eth_rx_refill_descs_timer_wrapper +- * +- * Timer routine to wake up RX queue filling task. This function is +- * used only in case the RX queue is empty, and all alloc_skb has +- * failed (due to out of memory event). +- * +- * Input : pointer to ethernet interface network device structure +- * Output : N/A +- */ +-static inline void mv643xx_eth_rx_refill_descs_timer_wrapper(unsigned long data) ++static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) + { +- mv643xx_eth_rx_refill_descs((struct net_device *)data); ++ return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); + } + +-/* +- * mv643xx_eth_update_mac_address +- * +- * Update the MAC address of the port in the address table +- * +- * Input : pointer to ethernet interface network device structure +- * Output : N/A +- */ +-static void mv643xx_eth_update_mac_address(struct net_device *dev) ++static void rxq_enable(struct rx_queue *rxq) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- +- eth_port_init_mac_tables(mp); +- eth_port_uc_addr_set(mp, dev->dev_addr); ++ struct mv643xx_eth_private *mp = rxq_to_mp(rxq); ++ wrl(mp, RXQ_COMMAND(mp->port_num), 1 << rxq->index); + } + +-/* +- * mv643xx_eth_set_rx_mode +- * +- * Change from promiscuos to regular rx mode +- * +- * Input : pointer to ethernet interface network device structure +- * Output : N/A +- */ +-static void mv643xx_eth_set_rx_mode(struct net_device *dev) ++static void rxq_disable(struct rx_queue *rxq) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- u32 config_reg; +- +- config_reg = rdl(mp, PORT_CONFIG_REG(mp->port_num)); +- if (dev->flags & IFF_PROMISC) +- config_reg |= (u32) UNICAST_PROMISCUOUS_MODE; +- else +- config_reg &= ~(u32) UNICAST_PROMISCUOUS_MODE; +- wrl(mp, PORT_CONFIG_REG(mp->port_num), config_reg); ++ struct mv643xx_eth_private *mp = rxq_to_mp(rxq); ++ u8 mask = 1 << rxq->index; + +- eth_port_set_multicast_list(dev); ++ wrl(mp, RXQ_COMMAND(mp->port_num), mask << 8); ++ while (rdl(mp, RXQ_COMMAND(mp->port_num)) & mask) ++ udelay(10); + } + +-/* +- * mv643xx_eth_set_mac_address +- * +- * Change the interface's mac address. +- * No special hardware thing should be done because interface is always +- * put in promiscuous mode. +- * +- * Input : pointer to ethernet interface network device structure and +- * a pointer to the designated entry to be added to the cache. +- * Output : zero upon success, negative upon failure +- */ +-static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) ++static void txq_enable(struct tx_queue *txq) + { +- int i; +- +- for (i = 0; i < 6; i++) +- /* +2 is for the offset of the HW addr type */ +- dev->dev_addr[i] = ((unsigned char *)addr)[i + 2]; +- mv643xx_eth_update_mac_address(dev); +- return 0; ++ struct mv643xx_eth_private *mp = txq_to_mp(txq); ++ wrl(mp, TXQ_COMMAND(mp->port_num), 1 << txq->index); + } + +-/* +- * mv643xx_eth_tx_timeout +- * +- * Called upon a timeout on transmitting a packet +- * +- * Input : pointer to ethernet interface network device structure. +- * Output : N/A +- */ +-static void mv643xx_eth_tx_timeout(struct net_device *dev) ++static void txq_disable(struct tx_queue *txq) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- +- printk(KERN_INFO "%s: TX timeout ", dev->name); ++ struct mv643xx_eth_private *mp = txq_to_mp(txq); ++ u8 mask = 1 << txq->index; + +- /* Do the reset outside of interrupt context */ +- schedule_work(&mp->tx_timeout_task); ++ wrl(mp, TXQ_COMMAND(mp->port_num), mask << 8); ++ while (rdl(mp, TXQ_COMMAND(mp->port_num)) & mask) ++ udelay(10); + } + +-/* +- * mv643xx_eth_tx_timeout_task +- * +- * Actual routine to reset the adapter when a timeout on Tx has occurred +- */ +-static void mv643xx_eth_tx_timeout_task(struct work_struct *ugly) ++static void __txq_maybe_wake(struct tx_queue *txq) + { +- struct mv643xx_private *mp = container_of(ugly, struct mv643xx_private, +- tx_timeout_task); +- struct net_device *dev = mp->dev; ++ struct mv643xx_eth_private *mp = txq_to_mp(txq); + +- if (!netif_running(dev)) +- return; ++ /* ++ * netif_{stop,wake}_queue() flow control only applies to ++ * the primary queue. ++ */ ++ BUG_ON(txq->index != mp->txq_primary); + +- netif_stop_queue(dev); ++ if (txq->tx_ring_size - txq->tx_desc_count >= MAX_DESCS_PER_SKB) ++ netif_wake_queue(mp->dev); ++} + +- eth_port_reset(mp); +- eth_port_start(dev); + +- if (mp->tx_ring_size - mp->tx_desc_count >= MAX_DESCS_PER_SKB) +- netif_wake_queue(dev); +-} ++/* rx ***********************************************************************/ ++static void txq_reclaim(struct tx_queue *txq, int force); + +-/** +- * mv643xx_eth_free_tx_descs - Free the tx desc data for completed descriptors +- * +- * If force is non-zero, frees uncompleted descriptors as well +- */ +-static int mv643xx_eth_free_tx_descs(struct net_device *dev, int force) ++static void rxq_refill(struct rx_queue *rxq) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- struct eth_tx_desc *desc; +- u32 cmd_sts; +- struct sk_buff *skb; ++ struct mv643xx_eth_private *mp = rxq_to_mp(rxq); + unsigned long flags; +- int tx_index; +- dma_addr_t addr; +- int count; +- int released = 0; +- +- while (mp->tx_desc_count > 0) { +- spin_lock_irqsave(&mp->lock, flags); +- +- /* tx_desc_count might have changed before acquiring the lock */ +- if (mp->tx_desc_count <= 0) { +- spin_unlock_irqrestore(&mp->lock, flags); +- return released; +- } +- +- tx_index = mp->tx_used_desc_q; +- desc = &mp->p_tx_desc_area[tx_index]; +- cmd_sts = desc->cmd_sts; + +- if (!force && (cmd_sts & ETH_BUFFER_OWNED_BY_DMA)) { +- spin_unlock_irqrestore(&mp->lock, flags); +- return released; +- } ++ spin_lock_irqsave(&mp->lock, flags); + +- mp->tx_used_desc_q = (tx_index + 1) % mp->tx_ring_size; +- mp->tx_desc_count--; ++ while (rxq->rx_desc_count < rxq->rx_ring_size) { ++ int skb_size; ++ struct sk_buff *skb; ++ int unaligned; ++ int rx; + +- addr = desc->buf_ptr; +- count = desc->byte_cnt; +- skb = mp->tx_skb[tx_index]; +- if (skb) +- mp->tx_skb[tx_index] = NULL; ++ /* ++ * Reserve 2+14 bytes for an ethernet header (the ++ * hardware automatically prepends 2 bytes of dummy ++ * data to each received packet), 4 bytes for a VLAN ++ * header, and 4 bytes for the trailing FCS -- 24 ++ * bytes total. ++ */ ++ skb_size = mp->dev->mtu + 24; + +- if (cmd_sts & ETH_ERROR_SUMMARY) { +- printk("%s: Error in TX\n", dev->name); +- dev->stats.tx_errors++; +- } ++ skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1); ++ if (skb == NULL) ++ break; + +- spin_unlock_irqrestore(&mp->lock, flags); ++ unaligned = (u32)skb->data & (dma_get_cache_alignment() - 1); ++ if (unaligned) ++ skb_reserve(skb, dma_get_cache_alignment() - unaligned); + +- if (cmd_sts & ETH_TX_FIRST_DESC) +- dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); +- else +- dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); ++ rxq->rx_desc_count++; ++ rx = rxq->rx_used_desc; ++ rxq->rx_used_desc = (rx + 1) % rxq->rx_ring_size; ++ ++ rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, ++ skb_size, DMA_FROM_DEVICE); ++ rxq->rx_desc_area[rx].buf_size = skb_size; ++ rxq->rx_skb[rx] = skb; ++ wmb(); ++ rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | ++ RX_ENABLE_INTERRUPT; ++ wmb(); + +- if (skb) +- dev_kfree_skb_irq(skb); ++ /* ++ * The hardware automatically prepends 2 bytes of ++ * dummy data to each received packet, so that the ++ * IP header ends up 16-byte aligned. ++ */ ++ skb_reserve(skb, 2); ++ } + +- released = 1; ++ if (rxq->rx_desc_count != rxq->rx_ring_size) { ++ rxq->rx_oom.expires = jiffies + (HZ / 10); ++ add_timer(&rxq->rx_oom); + } + +- return released; ++ spin_unlock_irqrestore(&mp->lock, flags); + } + +-static void mv643xx_eth_free_completed_tx_descs(struct net_device *dev) ++static inline void rxq_refill_timer_wrapper(unsigned long data) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- +- if (mv643xx_eth_free_tx_descs(dev, 0) && +- mp->tx_ring_size - mp->tx_desc_count >= MAX_DESCS_PER_SKB) +- netif_wake_queue(dev); ++ rxq_refill((struct rx_queue *)data); + } + +-static void mv643xx_eth_free_all_tx_descs(struct net_device *dev) ++static int rxq_process(struct rx_queue *rxq, int budget) + { +- mv643xx_eth_free_tx_descs(dev, 1); +-} ++ struct mv643xx_eth_private *mp = rxq_to_mp(rxq); ++ struct net_device_stats *stats = &mp->dev->stats; ++ int rx; + +-/* +- * mv643xx_eth_receive +- * +- * This function is forward packets that are received from the port's +- * queues toward kernel core or FastRoute them to another interface. +- * +- * Input : dev - a pointer to the required interface +- * max - maximum number to receive (0 means unlimted) +- * +- * Output : number of served packets +- */ +-static int mv643xx_eth_receive_queue(struct net_device *dev, int budget) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- struct net_device_stats *stats = &dev->stats; +- unsigned int received_packets = 0; +- struct sk_buff *skb; +- struct pkt_info pkt_info; +- +- while (budget-- > 0 && eth_port_receive(mp, &pkt_info) == ETH_OK) { +- dma_unmap_single(NULL, pkt_info.buf_ptr, ETH_RX_SKB_SIZE, +- DMA_FROM_DEVICE); +- mp->rx_desc_count--; +- received_packets++; ++ rx = 0; ++ while (rx < budget) { ++ struct rx_desc *rx_desc; ++ unsigned int cmd_sts; ++ struct sk_buff *skb; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&mp->lock, flags); ++ ++ rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; ++ ++ cmd_sts = rx_desc->cmd_sts; ++ if (cmd_sts & BUFFER_OWNED_BY_DMA) { ++ spin_unlock_irqrestore(&mp->lock, flags); ++ break; ++ } ++ rmb(); ++ ++ skb = rxq->rx_skb[rxq->rx_curr_desc]; ++ rxq->rx_skb[rxq->rx_curr_desc] = NULL; ++ ++ rxq->rx_curr_desc = (rxq->rx_curr_desc + 1) % rxq->rx_ring_size; ++ ++ spin_unlock_irqrestore(&mp->lock, flags); ++ ++ dma_unmap_single(NULL, rx_desc->buf_ptr + 2, ++ mp->dev->mtu + 24, DMA_FROM_DEVICE); ++ rxq->rx_desc_count--; ++ rx++; + + /* + * Update statistics. +- * Note byte count includes 4 byte CRC count ++ * ++ * Note that the descriptor byte count includes 2 dummy ++ * bytes automatically inserted by the hardware at the ++ * start of the packet (which we don't count), and a 4 ++ * byte CRC at the end of the packet (which we do count). + */ + stats->rx_packets++; +- stats->rx_bytes += pkt_info.byte_cnt; +- skb = pkt_info.return_info; ++ stats->rx_bytes += rx_desc->byte_cnt - 2; ++ + /* +- * In case received a packet without first / last bits on OR +- * the error summary bit is on, the packets needs to be dropeed. ++ * In case we received a packet without first / last bits ++ * on, or the error summary bit is set, the packet needs ++ * to be dropped. + */ +- if (((pkt_info.cmd_sts +- & (ETH_RX_FIRST_DESC | ETH_RX_LAST_DESC)) != +- (ETH_RX_FIRST_DESC | ETH_RX_LAST_DESC)) +- || (pkt_info.cmd_sts & ETH_ERROR_SUMMARY)) { ++ if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != ++ (RX_FIRST_DESC | RX_LAST_DESC)) ++ || (cmd_sts & ERROR_SUMMARY)) { + stats->rx_dropped++; +- if ((pkt_info.cmd_sts & (ETH_RX_FIRST_DESC | +- ETH_RX_LAST_DESC)) != +- (ETH_RX_FIRST_DESC | ETH_RX_LAST_DESC)) { ++ ++ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != ++ (RX_FIRST_DESC | RX_LAST_DESC)) { + if (net_ratelimit()) +- printk(KERN_ERR +- "%s: Received packet spread " +- "on multiple descriptors\n", +- dev->name); ++ dev_printk(KERN_ERR, &mp->dev->dev, ++ "received packet spanning " ++ "multiple descriptors\n"); + } +- if (pkt_info.cmd_sts & ETH_ERROR_SUMMARY) ++ ++ if (cmd_sts & ERROR_SUMMARY) + stats->rx_errors++; + + dev_kfree_skb_irq(skb); +@@ -975,668 +576,120 @@ + * The -4 is for the CRC in the trailer of the + * received packet + */ +- skb_put(skb, pkt_info.byte_cnt - 4); ++ skb_put(skb, rx_desc->byte_cnt - 2 - 4); + +- if (pkt_info.cmd_sts & ETH_LAYER_4_CHECKSUM_OK) { ++ if (cmd_sts & LAYER_4_CHECKSUM_OK) { + skb->ip_summed = CHECKSUM_UNNECESSARY; + skb->csum = htons( +- (pkt_info.cmd_sts & 0x0007fff8) >> 3); ++ (cmd_sts & 0x0007fff8) >> 3); + } +- skb->protocol = eth_type_trans(skb, dev); +-#ifdef MV643XX_NAPI ++ skb->protocol = eth_type_trans(skb, mp->dev); ++#ifdef MV643XX_ETH_NAPI + netif_receive_skb(skb); + #else + netif_rx(skb); + #endif + } +- dev->last_rx = jiffies; ++ ++ mp->dev->last_rx = jiffies; + } +- mv643xx_eth_rx_refill_descs(dev); /* Fill RX ring with skb's */ + +- return received_packets; ++ rxq_refill(rxq); ++ ++ return rx; + } + +-/* Set the mv643xx port configuration register for the speed/duplex mode. */ +-static void mv643xx_eth_update_pscr(struct net_device *dev, +- struct ethtool_cmd *ecmd) ++#ifdef MV643XX_ETH_NAPI ++static int mv643xx_eth_poll(struct napi_struct *napi, int budget) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- int port_num = mp->port_num; +- u32 o_pscr, n_pscr; +- unsigned int queues; ++ struct mv643xx_eth_private *mp; ++ int rx; ++ int i; + +- o_pscr = rdl(mp, PORT_SERIAL_CONTROL_REG(port_num)); +- n_pscr = o_pscr; ++ mp = container_of(napi, struct mv643xx_eth_private, napi); + +- /* clear speed, duplex and rx buffer size fields */ +- n_pscr &= ~(SET_MII_SPEED_TO_100 | +- SET_GMII_SPEED_TO_1000 | +- SET_FULL_DUPLEX_MODE | +- MAX_RX_PACKET_MASK); +- +- if (ecmd->duplex == DUPLEX_FULL) +- n_pscr |= SET_FULL_DUPLEX_MODE; +- +- if (ecmd->speed == SPEED_1000) +- n_pscr |= SET_GMII_SPEED_TO_1000 | +- MAX_RX_PACKET_9700BYTE; +- else { +- if (ecmd->speed == SPEED_100) +- n_pscr |= SET_MII_SPEED_TO_100; +- n_pscr |= MAX_RX_PACKET_1522BYTE; +- } +- +- if (n_pscr != o_pscr) { +- if ((o_pscr & SERIAL_PORT_ENABLE) == 0) +- wrl(mp, PORT_SERIAL_CONTROL_REG(port_num), n_pscr); +- else { +- queues = mv643xx_eth_port_disable_tx(mp); ++#ifdef MV643XX_ETH_TX_FAST_REFILL ++ if (++mp->tx_clean_threshold > 5) { ++ mp->tx_clean_threshold = 0; ++ for (i = 0; i < 8; i++) ++ if (mp->txq_mask & (1 << i)) ++ txq_reclaim(mp->txq + i, 0); ++ } ++#endif + +- o_pscr &= ~SERIAL_PORT_ENABLE; +- wrl(mp, PORT_SERIAL_CONTROL_REG(port_num), o_pscr); +- wrl(mp, PORT_SERIAL_CONTROL_REG(port_num), n_pscr); +- wrl(mp, PORT_SERIAL_CONTROL_REG(port_num), n_pscr); +- if (queues) +- mv643xx_eth_port_enable_tx(mp, queues); +- } ++ rx = 0; ++ for (i = 7; rx < budget && i >= 0; i--) ++ if (mp->rxq_mask & (1 << i)) ++ rx += rxq_process(mp->rxq + i, budget - rx); ++ ++ if (rx < budget) { ++ netif_rx_complete(mp->dev, napi); ++ wrl(mp, INT_CAUSE(mp->port_num), 0); ++ wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); ++ wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); + } ++ ++ return rx; + } ++#endif + +-/* +- * mv643xx_eth_int_handler +- * +- * Main interrupt handler for the gigbit ethernet ports +- * +- * Input : irq - irq number (not used) +- * dev_id - a pointer to the required interface's data structure +- * regs - not used +- * Output : N/A +- */ + +-static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id) ++/* tx ***********************************************************************/ ++static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) + { +- struct net_device *dev = (struct net_device *)dev_id; +- struct mv643xx_private *mp = netdev_priv(dev); +- u32 eth_int_cause, eth_int_cause_ext = 0; +- unsigned int port_num = mp->port_num; +- +- /* Read interrupt cause registers */ +- eth_int_cause = rdl(mp, INTERRUPT_CAUSE_REG(port_num)) & +- ETH_INT_UNMASK_ALL; +- if (eth_int_cause & ETH_INT_CAUSE_EXT) { +- eth_int_cause_ext = rdl(mp, +- INTERRUPT_CAUSE_EXTEND_REG(port_num)) & +- ETH_INT_UNMASK_ALL_EXT; +- wrl(mp, INTERRUPT_CAUSE_EXTEND_REG(port_num), +- ~eth_int_cause_ext); +- } +- +- /* PHY status changed */ +- if (eth_int_cause_ext & (ETH_INT_CAUSE_PHY | ETH_INT_CAUSE_STATE)) { +- struct ethtool_cmd cmd; ++ int frag; + +- if (mii_link_ok(&mp->mii)) { +- mii_ethtool_gset(&mp->mii, &cmd); +- mv643xx_eth_update_pscr(dev, &cmd); +- mv643xx_eth_port_enable_tx(mp, ETH_TX_QUEUES_ENABLED); +- if (!netif_carrier_ok(dev)) { +- netif_carrier_on(dev); +- if (mp->tx_ring_size - mp->tx_desc_count >= +- MAX_DESCS_PER_SKB) +- netif_wake_queue(dev); +- } +- } else if (netif_carrier_ok(dev)) { +- netif_stop_queue(dev); +- netif_carrier_off(dev); +- } ++ for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { ++ skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; ++ if (fragp->size <= 8 && fragp->page_offset & 7) ++ return 1; + } + +-#ifdef MV643XX_NAPI +- if (eth_int_cause & ETH_INT_CAUSE_RX) { +- /* schedule the NAPI poll routine to maintain port */ +- wrl(mp, INTERRUPT_MASK_REG(port_num), ETH_INT_MASK_ALL); ++ return 0; ++} + +- /* wait for previous write to complete */ +- rdl(mp, INTERRUPT_MASK_REG(port_num)); ++static int txq_alloc_desc_index(struct tx_queue *txq) ++{ ++ int tx_desc_curr; + +- netif_rx_schedule(dev, &mp->napi); +- } +-#else +- if (eth_int_cause & ETH_INT_CAUSE_RX) +- mv643xx_eth_receive_queue(dev, INT_MAX); +-#endif +- if (eth_int_cause_ext & ETH_INT_CAUSE_TX) +- mv643xx_eth_free_completed_tx_descs(dev); ++ BUG_ON(txq->tx_desc_count >= txq->tx_ring_size); + +- /* +- * If no real interrupt occured, exit. +- * This can happen when using gigE interrupt coalescing mechanism. +- */ +- if ((eth_int_cause == 0x0) && (eth_int_cause_ext == 0x0)) +- return IRQ_NONE; ++ tx_desc_curr = txq->tx_curr_desc; ++ txq->tx_curr_desc = (tx_desc_curr + 1) % txq->tx_ring_size; + +- return IRQ_HANDLED; +-} +- +-#ifdef MV643XX_COAL +- +-/* +- * eth_port_set_rx_coal - Sets coalescing interrupt mechanism on RX path +- * +- * DESCRIPTION: +- * This routine sets the RX coalescing interrupt mechanism parameter. +- * This parameter is a timeout counter, that counts in 64 t_clk +- * chunks ; that when timeout event occurs a maskable interrupt +- * occurs. +- * The parameter is calculated using the tClk of the MV-643xx chip +- * , and the required delay of the interrupt in usec. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet port +- * unsigned int delay Delay in usec +- * +- * OUTPUT: +- * Interrupt coalescing mechanism value is set in MV-643xx chip. +- * +- * RETURN: +- * The interrupt coalescing value set in the gigE port. +- * +- */ +-static unsigned int eth_port_set_rx_coal(struct mv643xx_private *mp, +- unsigned int delay) +-{ +- unsigned int port_num = mp->port_num; +- unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; +- +- /* Set RX Coalescing mechanism */ +- wrl(mp, SDMA_CONFIG_REG(port_num), +- ((coal & 0x3fff) << 8) | +- (rdl(mp, SDMA_CONFIG_REG(port_num)) +- & 0xffc000ff)); +- +- return coal; +-} +-#endif +- +-/* +- * eth_port_set_tx_coal - Sets coalescing interrupt mechanism on TX path +- * +- * DESCRIPTION: +- * This routine sets the TX coalescing interrupt mechanism parameter. +- * This parameter is a timeout counter, that counts in 64 t_clk +- * chunks ; that when timeout event occurs a maskable interrupt +- * occurs. +- * The parameter is calculated using the t_cLK frequency of the +- * MV-643xx chip and the required delay in the interrupt in uSec +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet port +- * unsigned int delay Delay in uSeconds +- * +- * OUTPUT: +- * Interrupt coalescing mechanism value is set in MV-643xx chip. +- * +- * RETURN: +- * The interrupt coalescing value set in the gigE port. +- * +- */ +-static unsigned int eth_port_set_tx_coal(struct mv643xx_private *mp, +- unsigned int delay) +-{ +- unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; +- +- /* Set TX Coalescing mechanism */ +- wrl(mp, TX_FIFO_URGENT_THRESHOLD_REG(mp->port_num), coal << 4); +- +- return coal; +-} +- +-/* +- * ether_init_rx_desc_ring - Curve a Rx chain desc list and buffer in memory. +- * +- * DESCRIPTION: +- * This function prepares a Rx chained list of descriptors and packet +- * buffers in a form of a ring. The routine must be called after port +- * initialization routine and before port start routine. +- * The Ethernet SDMA engine uses CPU bus addresses to access the various +- * devices in the system (i.e. DRAM). This function uses the ethernet +- * struct 'virtual to physical' routine (set by the user) to set the ring +- * with physical addresses. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port Control srtuct. +- * +- * OUTPUT: +- * The routine updates the Ethernet port control struct with information +- * regarding the Rx descriptors and buffers. +- * +- * RETURN: +- * None. +- */ +-static void ether_init_rx_desc_ring(struct mv643xx_private *mp) +-{ +- volatile struct eth_rx_desc *p_rx_desc; +- int rx_desc_num = mp->rx_ring_size; +- int i; +- +- /* initialize the next_desc_ptr links in the Rx descriptors ring */ +- p_rx_desc = (struct eth_rx_desc *)mp->p_rx_desc_area; +- for (i = 0; i < rx_desc_num; i++) { +- p_rx_desc[i].next_desc_ptr = mp->rx_desc_dma + +- ((i + 1) % rx_desc_num) * sizeof(struct eth_rx_desc); +- } +- +- /* Save Rx desc pointer to driver struct. */ +- mp->rx_curr_desc_q = 0; +- mp->rx_used_desc_q = 0; +- +- mp->rx_desc_area_size = rx_desc_num * sizeof(struct eth_rx_desc); +-} +- +-/* +- * ether_init_tx_desc_ring - Curve a Tx chain desc list and buffer in memory. +- * +- * DESCRIPTION: +- * This function prepares a Tx chained list of descriptors and packet +- * buffers in a form of a ring. The routine must be called after port +- * initialization routine and before port start routine. +- * The Ethernet SDMA engine uses CPU bus addresses to access the various +- * devices in the system (i.e. DRAM). This function uses the ethernet +- * struct 'virtual to physical' routine (set by the user) to set the ring +- * with physical addresses. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port Control srtuct. +- * +- * OUTPUT: +- * The routine updates the Ethernet port control struct with information +- * regarding the Tx descriptors and buffers. +- * +- * RETURN: +- * None. +- */ +-static void ether_init_tx_desc_ring(struct mv643xx_private *mp) +-{ +- int tx_desc_num = mp->tx_ring_size; +- struct eth_tx_desc *p_tx_desc; +- int i; +- +- /* Initialize the next_desc_ptr links in the Tx descriptors ring */ +- p_tx_desc = (struct eth_tx_desc *)mp->p_tx_desc_area; +- for (i = 0; i < tx_desc_num; i++) { +- p_tx_desc[i].next_desc_ptr = mp->tx_desc_dma + +- ((i + 1) % tx_desc_num) * sizeof(struct eth_tx_desc); +- } +- +- mp->tx_curr_desc_q = 0; +- mp->tx_used_desc_q = 0; +- +- mp->tx_desc_area_size = tx_desc_num * sizeof(struct eth_tx_desc); +-} +- +-static int mv643xx_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- int err; +- +- spin_lock_irq(&mp->lock); +- err = mii_ethtool_sset(&mp->mii, cmd); +- spin_unlock_irq(&mp->lock); +- +- return err; +-} +- +-static int mv643xx_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- int err; +- +- spin_lock_irq(&mp->lock); +- err = mii_ethtool_gset(&mp->mii, cmd); +- spin_unlock_irq(&mp->lock); +- +- /* The PHY may support 1000baseT_Half, but the mv643xx does not */ +- cmd->supported &= ~SUPPORTED_1000baseT_Half; +- cmd->advertising &= ~ADVERTISED_1000baseT_Half; +- +- return err; +-} +- +-/* +- * mv643xx_eth_open +- * +- * This function is called when openning the network device. The function +- * should initialize all the hardware, initialize cyclic Rx/Tx +- * descriptors chain and buffers and allocate an IRQ to the network +- * device. +- * +- * Input : a pointer to the network device structure +- * +- * Output : zero of success , nonzero if fails. +- */ +- +-static int mv643xx_eth_open(struct net_device *dev) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- unsigned int port_num = mp->port_num; +- unsigned int size; +- int err; +- +- /* Clear any pending ethernet port interrupts */ +- wrl(mp, INTERRUPT_CAUSE_REG(port_num), 0); +- wrl(mp, INTERRUPT_CAUSE_EXTEND_REG(port_num), 0); +- /* wait for previous write to complete */ +- rdl(mp, INTERRUPT_CAUSE_EXTEND_REG(port_num)); +- +- err = request_irq(dev->irq, mv643xx_eth_int_handler, +- IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, dev); +- if (err) { +- printk(KERN_ERR "%s: Can not assign IRQ\n", dev->name); +- return -EAGAIN; +- } +- +- eth_port_init(mp); +- +- memset(&mp->timeout, 0, sizeof(struct timer_list)); +- mp->timeout.function = mv643xx_eth_rx_refill_descs_timer_wrapper; +- mp->timeout.data = (unsigned long)dev; +- +- /* Allocate RX and TX skb rings */ +- mp->rx_skb = kmalloc(sizeof(*mp->rx_skb) * mp->rx_ring_size, +- GFP_KERNEL); +- if (!mp->rx_skb) { +- printk(KERN_ERR "%s: Cannot allocate Rx skb ring\n", dev->name); +- err = -ENOMEM; +- goto out_free_irq; +- } +- mp->tx_skb = kmalloc(sizeof(*mp->tx_skb) * mp->tx_ring_size, +- GFP_KERNEL); +- if (!mp->tx_skb) { +- printk(KERN_ERR "%s: Cannot allocate Tx skb ring\n", dev->name); +- err = -ENOMEM; +- goto out_free_rx_skb; +- } +- +- /* Allocate TX ring */ +- mp->tx_desc_count = 0; +- size = mp->tx_ring_size * sizeof(struct eth_tx_desc); +- mp->tx_desc_area_size = size; +- +- if (mp->tx_sram_size) { +- mp->p_tx_desc_area = ioremap(mp->tx_sram_addr, +- mp->tx_sram_size); +- mp->tx_desc_dma = mp->tx_sram_addr; +- } else +- mp->p_tx_desc_area = dma_alloc_coherent(NULL, size, +- &mp->tx_desc_dma, +- GFP_KERNEL); +- +- if (!mp->p_tx_desc_area) { +- printk(KERN_ERR "%s: Cannot allocate Tx Ring (size %d bytes)\n", +- dev->name, size); +- err = -ENOMEM; +- goto out_free_tx_skb; +- } +- BUG_ON((u32) mp->p_tx_desc_area & 0xf); /* check 16-byte alignment */ +- memset((void *)mp->p_tx_desc_area, 0, mp->tx_desc_area_size); +- +- ether_init_tx_desc_ring(mp); +- +- /* Allocate RX ring */ +- mp->rx_desc_count = 0; +- size = mp->rx_ring_size * sizeof(struct eth_rx_desc); +- mp->rx_desc_area_size = size; +- +- if (mp->rx_sram_size) { +- mp->p_rx_desc_area = ioremap(mp->rx_sram_addr, +- mp->rx_sram_size); +- mp->rx_desc_dma = mp->rx_sram_addr; +- } else +- mp->p_rx_desc_area = dma_alloc_coherent(NULL, size, +- &mp->rx_desc_dma, +- GFP_KERNEL); +- +- if (!mp->p_rx_desc_area) { +- printk(KERN_ERR "%s: Cannot allocate Rx ring (size %d bytes)\n", +- dev->name, size); +- printk(KERN_ERR "%s: Freeing previously allocated TX queues...", +- dev->name); +- if (mp->rx_sram_size) +- iounmap(mp->p_tx_desc_area); +- else +- dma_free_coherent(NULL, mp->tx_desc_area_size, +- mp->p_tx_desc_area, mp->tx_desc_dma); +- err = -ENOMEM; +- goto out_free_tx_skb; +- } +- memset((void *)mp->p_rx_desc_area, 0, size); +- +- ether_init_rx_desc_ring(mp); +- +- mv643xx_eth_rx_refill_descs(dev); /* Fill RX ring with skb's */ +- +-#ifdef MV643XX_NAPI +- napi_enable(&mp->napi); +-#endif +- +- eth_port_start(dev); +- +- /* Interrupt Coalescing */ +- +-#ifdef MV643XX_COAL +- mp->rx_int_coal = +- eth_port_set_rx_coal(mp, MV643XX_RX_COAL); +-#endif +- +- mp->tx_int_coal = +- eth_port_set_tx_coal(mp, MV643XX_TX_COAL); +- +- /* Unmask phy and link status changes interrupts */ +- wrl(mp, INTERRUPT_EXTEND_MASK_REG(port_num), ETH_INT_UNMASK_ALL_EXT); +- +- /* Unmask RX buffer and TX end interrupt */ +- wrl(mp, INTERRUPT_MASK_REG(port_num), ETH_INT_UNMASK_ALL); +- +- return 0; +- +-out_free_tx_skb: +- kfree(mp->tx_skb); +-out_free_rx_skb: +- kfree(mp->rx_skb); +-out_free_irq: +- free_irq(dev->irq, dev); +- +- return err; +-} +- +-static void mv643xx_eth_free_tx_rings(struct net_device *dev) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- +- /* Stop Tx Queues */ +- mv643xx_eth_port_disable_tx(mp); +- +- /* Free outstanding skb's on TX ring */ +- mv643xx_eth_free_all_tx_descs(dev); +- +- BUG_ON(mp->tx_used_desc_q != mp->tx_curr_desc_q); +- +- /* Free TX ring */ +- if (mp->tx_sram_size) +- iounmap(mp->p_tx_desc_area); +- else +- dma_free_coherent(NULL, mp->tx_desc_area_size, +- mp->p_tx_desc_area, mp->tx_desc_dma); +-} +- +-static void mv643xx_eth_free_rx_rings(struct net_device *dev) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- int curr; +- +- /* Stop RX Queues */ +- mv643xx_eth_port_disable_rx(mp); +- +- /* Free preallocated skb's on RX rings */ +- for (curr = 0; mp->rx_desc_count && curr < mp->rx_ring_size; curr++) { +- if (mp->rx_skb[curr]) { +- dev_kfree_skb(mp->rx_skb[curr]); +- mp->rx_desc_count--; +- } +- } +- +- if (mp->rx_desc_count) +- printk(KERN_ERR +- "%s: Error in freeing Rx Ring. %d skb's still" +- " stuck in RX Ring - ignoring them\n", dev->name, +- mp->rx_desc_count); +- /* Free RX ring */ +- if (mp->rx_sram_size) +- iounmap(mp->p_rx_desc_area); +- else +- dma_free_coherent(NULL, mp->rx_desc_area_size, +- mp->p_rx_desc_area, mp->rx_desc_dma); +-} +- +-/* +- * mv643xx_eth_stop +- * +- * This function is used when closing the network device. +- * It updates the hardware, +- * release all memory that holds buffers and descriptors and release the IRQ. +- * Input : a pointer to the device structure +- * Output : zero if success , nonzero if fails +- */ +- +-static int mv643xx_eth_stop(struct net_device *dev) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- unsigned int port_num = mp->port_num; +- +- /* Mask all interrupts on ethernet port */ +- wrl(mp, INTERRUPT_MASK_REG(port_num), ETH_INT_MASK_ALL); +- /* wait for previous write to complete */ +- rdl(mp, INTERRUPT_MASK_REG(port_num)); +- +-#ifdef MV643XX_NAPI +- napi_disable(&mp->napi); +-#endif +- netif_carrier_off(dev); +- netif_stop_queue(dev); +- +- eth_port_reset(mp); +- +- mv643xx_eth_free_tx_rings(dev); +- mv643xx_eth_free_rx_rings(dev); +- +- free_irq(dev->irq, dev); +- +- return 0; +-} +- +-#ifdef MV643XX_NAPI +-/* +- * mv643xx_poll +- * +- * This function is used in case of NAPI +- */ +-static int mv643xx_poll(struct napi_struct *napi, int budget) +-{ +- struct mv643xx_private *mp = container_of(napi, struct mv643xx_private, napi); +- struct net_device *dev = mp->dev; +- unsigned int port_num = mp->port_num; +- int work_done; +- +-#ifdef MV643XX_TX_FAST_REFILL +- if (++mp->tx_clean_threshold > 5) { +- mv643xx_eth_free_completed_tx_descs(dev); +- mp->tx_clean_threshold = 0; +- } +-#endif +- +- work_done = 0; +- if ((rdl(mp, RX_CURRENT_QUEUE_DESC_PTR_0(port_num))) +- != (u32) mp->rx_used_desc_q) +- work_done = mv643xx_eth_receive_queue(dev, budget); +- +- if (work_done < budget) { +- netif_rx_complete(dev, napi); +- wrl(mp, INTERRUPT_CAUSE_REG(port_num), 0); +- wrl(mp, INTERRUPT_CAUSE_EXTEND_REG(port_num), 0); +- wrl(mp, INTERRUPT_MASK_REG(port_num), ETH_INT_UNMASK_ALL); +- } +- +- return work_done; +-} +-#endif +- +-/** +- * has_tiny_unaligned_frags - check if skb has any small, unaligned fragments +- * +- * Hardware can't handle unaligned fragments smaller than 9 bytes. +- * This helper function detects that case. +- */ +- +-static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) +-{ +- unsigned int frag; +- skb_frag_t *fragp; +- +- for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { +- fragp = &skb_shinfo(skb)->frags[frag]; +- if (fragp->size <= 8 && fragp->page_offset & 0x7) +- return 1; +- } +- return 0; +-} +- +-/** +- * eth_alloc_tx_desc_index - return the index of the next available tx desc +- */ +-static int eth_alloc_tx_desc_index(struct mv643xx_private *mp) +-{ +- int tx_desc_curr; +- +- BUG_ON(mp->tx_desc_count >= mp->tx_ring_size); +- +- tx_desc_curr = mp->tx_curr_desc_q; +- mp->tx_curr_desc_q = (tx_desc_curr + 1) % mp->tx_ring_size; +- +- BUG_ON(mp->tx_curr_desc_q == mp->tx_used_desc_q); ++ BUG_ON(txq->tx_curr_desc == txq->tx_used_desc); + + return tx_desc_curr; + } + +-/** +- * eth_tx_fill_frag_descs - fill tx hw descriptors for an skb's fragments. +- * +- * Ensure the data for each fragment to be transmitted is mapped properly, +- * then fill in descriptors in the tx hw queue. +- */ +-static void eth_tx_fill_frag_descs(struct mv643xx_private *mp, +- struct sk_buff *skb) ++static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb) + { ++ int nr_frags = skb_shinfo(skb)->nr_frags; + int frag; +- int tx_index; +- struct eth_tx_desc *desc; +- +- for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { +- skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag]; + +- tx_index = eth_alloc_tx_desc_index(mp); +- desc = &mp->p_tx_desc_area[tx_index]; ++ for (frag = 0; frag < nr_frags; frag++) { ++ skb_frag_t *this_frag; ++ int tx_index; ++ struct tx_desc *desc; ++ ++ this_frag = &skb_shinfo(skb)->frags[frag]; ++ tx_index = txq_alloc_desc_index(txq); ++ desc = &txq->tx_desc_area[tx_index]; + +- desc->cmd_sts = ETH_BUFFER_OWNED_BY_DMA; +- /* Last Frag enables interrupt and frees the skb */ +- if (frag == (skb_shinfo(skb)->nr_frags - 1)) { +- desc->cmd_sts |= ETH_ZERO_PADDING | +- ETH_TX_LAST_DESC | +- ETH_TX_ENABLE_INTERRUPT; +- mp->tx_skb[tx_index] = skb; +- } else +- mp->tx_skb[tx_index] = NULL; ++ /* ++ * The last fragment will generate an interrupt ++ * which will free the skb on TX completion. ++ */ ++ if (frag == nr_frags - 1) { ++ desc->cmd_sts = BUFFER_OWNED_BY_DMA | ++ ZERO_PADDING | TX_LAST_DESC | ++ TX_ENABLE_INTERRUPT; ++ txq->tx_skb[tx_index] = skb; ++ } else { ++ desc->cmd_sts = BUFFER_OWNED_BY_DMA; ++ txq->tx_skb[tx_index] = NULL; ++ } + +- desc = &mp->p_tx_desc_area[tx_index]; + desc->l4i_chk = 0; + desc->byte_cnt = this_frag->size; + desc->buf_ptr = dma_map_page(NULL, this_frag->page, +@@ -1651,37 +704,28 @@ + return (__force __be16)sum; + } + +-/** +- * eth_tx_submit_descs_for_skb - submit data from an skb to the tx hw +- * +- * Ensure the data for an skb to be transmitted is mapped properly, +- * then fill in descriptors in the tx hw queue and start the hardware. +- */ +-static void eth_tx_submit_descs_for_skb(struct mv643xx_private *mp, +- struct sk_buff *skb) ++static void txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb) + { ++ int nr_frags = skb_shinfo(skb)->nr_frags; + int tx_index; +- struct eth_tx_desc *desc; ++ struct tx_desc *desc; + u32 cmd_sts; + int length; +- int nr_frags = skb_shinfo(skb)->nr_frags; + +- cmd_sts = ETH_TX_FIRST_DESC | ETH_GEN_CRC | ETH_BUFFER_OWNED_BY_DMA; ++ cmd_sts = TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; + +- tx_index = eth_alloc_tx_desc_index(mp); +- desc = &mp->p_tx_desc_area[tx_index]; ++ tx_index = txq_alloc_desc_index(txq); ++ desc = &txq->tx_desc_area[tx_index]; + + if (nr_frags) { +- eth_tx_fill_frag_descs(mp, skb); ++ txq_submit_frag_skb(txq, skb); + + length = skb_headlen(skb); +- mp->tx_skb[tx_index] = NULL; ++ txq->tx_skb[tx_index] = NULL; + } else { +- cmd_sts |= ETH_ZERO_PADDING | +- ETH_TX_LAST_DESC | +- ETH_TX_ENABLE_INTERRUPT; ++ cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; + length = skb->len; +- mp->tx_skb[tx_index] = skb; ++ txq->tx_skb[tx_index] = skb; + } + + desc->byte_cnt = length; +@@ -1690,13 +734,13 @@ + if (skb->ip_summed == CHECKSUM_PARTIAL) { + BUG_ON(skb->protocol != htons(ETH_P_IP)); + +- cmd_sts |= ETH_GEN_TCP_UDP_CHECKSUM | +- ETH_GEN_IP_V_4_CHECKSUM | +- ip_hdr(skb)->ihl << ETH_TX_IHL_SHIFT; ++ cmd_sts |= GEN_TCP_UDP_CHECKSUM | ++ GEN_IP_V4_CHECKSUM | ++ ip_hdr(skb)->ihl << TX_IHL_SHIFT; + + switch (ip_hdr(skb)->protocol) { + case IPPROTO_UDP: +- cmd_sts |= ETH_UDP_FRAME; ++ cmd_sts |= UDP_FRAME; + desc->l4i_chk = ntohs(sum16_as_be(udp_hdr(skb)->check)); + break; + case IPPROTO_TCP: +@@ -1707,7 +751,7 @@ + } + } else { + /* Errata BTS #50, IHL must be 5 if no HW checksum */ +- cmd_sts |= 5 << ETH_TX_IHL_SHIFT; ++ cmd_sts |= 5 << TX_IHL_SHIFT; + desc->l4i_chk = 0; + } + +@@ -1717,1649 +761,1818 @@ + + /* ensure all descriptors are written before poking hardware */ + wmb(); +- mv643xx_eth_port_enable_tx(mp, ETH_TX_QUEUES_ENABLED); ++ txq_enable(txq); + +- mp->tx_desc_count += nr_frags + 1; ++ txq->tx_desc_count += nr_frags + 1; + } + +-/** +- * mv643xx_eth_start_xmit - queue an skb to the hardware for transmission +- * +- */ +-static int mv643xx_eth_start_xmit(struct sk_buff *skb, struct net_device *dev) ++static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev) + { +- struct mv643xx_private *mp = netdev_priv(dev); ++ struct mv643xx_eth_private *mp = netdev_priv(dev); + struct net_device_stats *stats = &dev->stats; ++ struct tx_queue *txq; + unsigned long flags; + +- BUG_ON(netif_queue_stopped(dev)); +- + if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { + stats->tx_dropped++; +- printk(KERN_DEBUG "%s: failed to linearize tiny " +- "unaligned fragment\n", dev->name); ++ dev_printk(KERN_DEBUG, &dev->dev, ++ "failed to linearize skb with tiny " ++ "unaligned fragment\n"); + return NETDEV_TX_BUSY; + } + + spin_lock_irqsave(&mp->lock, flags); + +- if (mp->tx_ring_size - mp->tx_desc_count < MAX_DESCS_PER_SKB) { +- printk(KERN_ERR "%s: transmit with queue full\n", dev->name); +- netif_stop_queue(dev); ++ txq = mp->txq + mp->txq_primary; ++ ++ if (txq->tx_ring_size - txq->tx_desc_count < MAX_DESCS_PER_SKB) { + spin_unlock_irqrestore(&mp->lock, flags); +- return NETDEV_TX_BUSY; ++ if (txq->index == mp->txq_primary && net_ratelimit()) ++ dev_printk(KERN_ERR, &dev->dev, ++ "primary tx queue full?!\n"); ++ kfree_skb(skb); ++ return NETDEV_TX_OK; + } + +- eth_tx_submit_descs_for_skb(mp, skb); ++ txq_submit_skb(txq, skb); + stats->tx_bytes += skb->len; + stats->tx_packets++; + dev->trans_start = jiffies; + +- if (mp->tx_ring_size - mp->tx_desc_count < MAX_DESCS_PER_SKB) +- netif_stop_queue(dev); ++ if (txq->index == mp->txq_primary) { ++ int entries_left; ++ ++ entries_left = txq->tx_ring_size - txq->tx_desc_count; ++ if (entries_left < MAX_DESCS_PER_SKB) ++ netif_stop_queue(dev); ++ } + + spin_unlock_irqrestore(&mp->lock, flags); + + return NETDEV_TX_OK; + } + +-#ifdef CONFIG_NET_POLL_CONTROLLER +-static void mv643xx_netpoll(struct net_device *netdev) ++ ++/* tx rate control **********************************************************/ ++/* ++ * Set total maximum TX rate (shared by all TX queues for this port) ++ * to 'rate' bits per second, with a maximum burst of 'burst' bytes. ++ */ ++static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) + { +- struct mv643xx_private *mp = netdev_priv(netdev); +- int port_num = mp->port_num; ++ int token_rate; ++ int mtu; ++ int bucket_size; ++ ++ token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); ++ if (token_rate > 1023) ++ token_rate = 1023; + +- wrl(mp, INTERRUPT_MASK_REG(port_num), ETH_INT_MASK_ALL); +- /* wait for previous write to complete */ +- rdl(mp, INTERRUPT_MASK_REG(port_num)); ++ mtu = (mp->dev->mtu + 255) >> 8; ++ if (mtu > 63) ++ mtu = 63; + +- mv643xx_eth_int_handler(netdev->irq, netdev); ++ bucket_size = (burst + 255) >> 8; ++ if (bucket_size > 65535) ++ bucket_size = 65535; + +- wrl(mp, INTERRUPT_MASK_REG(port_num), ETH_INT_UNMASK_ALL); ++ if (mp->shared->tx_bw_control_moved) { ++ wrl(mp, TX_BW_RATE_MOVED(mp->port_num), token_rate); ++ wrl(mp, TX_BW_MTU_MOVED(mp->port_num), mtu); ++ wrl(mp, TX_BW_BURST_MOVED(mp->port_num), bucket_size); ++ } else { ++ wrl(mp, TX_BW_RATE(mp->port_num), token_rate); ++ wrl(mp, TX_BW_MTU(mp->port_num), mtu); ++ wrl(mp, TX_BW_BURST(mp->port_num), bucket_size); ++ } + } +-#endif + +-static void mv643xx_init_ethtool_cmd(struct net_device *dev, int phy_address, +- int speed, int duplex, +- struct ethtool_cmd *cmd) ++static void txq_set_rate(struct tx_queue *txq, int rate, int burst) + { +- struct mv643xx_private *mp = netdev_priv(dev); ++ struct mv643xx_eth_private *mp = txq_to_mp(txq); ++ int token_rate; ++ int bucket_size; + +- memset(cmd, 0, sizeof(*cmd)); ++ token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000); ++ if (token_rate > 1023) ++ token_rate = 1023; + +- cmd->port = PORT_MII; +- cmd->transceiver = XCVR_INTERNAL; +- cmd->phy_address = phy_address; ++ bucket_size = (burst + 255) >> 8; ++ if (bucket_size > 65535) ++ bucket_size = 65535; + +- if (speed == 0) { +- cmd->autoneg = AUTONEG_ENABLE; +- /* mii lib checks, but doesn't use speed on AUTONEG_ENABLE */ +- cmd->speed = SPEED_100; +- cmd->advertising = ADVERTISED_10baseT_Half | +- ADVERTISED_10baseT_Full | +- ADVERTISED_100baseT_Half | +- ADVERTISED_100baseT_Full; +- if (mp->mii.supports_gmii) +- cmd->advertising |= ADVERTISED_1000baseT_Full; +- } else { +- cmd->autoneg = AUTONEG_DISABLE; +- cmd->speed = speed; +- cmd->duplex = duplex; +- } ++ wrl(mp, TXQ_BW_TOKENS(mp->port_num, txq->index), token_rate << 14); ++ wrl(mp, TXQ_BW_CONF(mp->port_num, txq->index), ++ (bucket_size << 10) | token_rate); + } + +-/*/ +- * mv643xx_eth_probe +- * +- * First function called after registering the network device. +- * It's purpose is to initialize the device as an ethernet device, +- * fill the ethernet device structure with pointers * to functions, +- * and set the MAC address of the interface +- * +- * Input : struct device * +- * Output : -ENOMEM if failed , 0 if success +- */ +-static int mv643xx_eth_probe(struct platform_device *pdev) ++static void txq_set_fixed_prio_mode(struct tx_queue *txq) + { +- struct mv643xx_eth_platform_data *pd; +- int port_num; +- struct mv643xx_private *mp; +- struct net_device *dev; +- u8 *p; +- struct resource *res; +- int err; +- struct ethtool_cmd cmd; +- int duplex = DUPLEX_HALF; +- int speed = 0; /* default to auto-negotiation */ +- DECLARE_MAC_BUF(mac); ++ struct mv643xx_eth_private *mp = txq_to_mp(txq); ++ int off; ++ u32 val; + +- pd = pdev->dev.platform_data; +- if (pd == NULL) { +- printk(KERN_ERR "No mv643xx_eth_platform_data\n"); +- return -ENODEV; +- } ++ /* ++ * Turn on fixed priority mode. ++ */ ++ if (mp->shared->tx_bw_control_moved) ++ off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); ++ else ++ off = TXQ_FIX_PRIO_CONF(mp->port_num); + +- if (pd->shared == NULL) { +- printk(KERN_ERR "No mv643xx_eth_platform_data->shared\n"); +- return -ENODEV; +- } ++ val = rdl(mp, off); ++ val |= 1 << txq->index; ++ wrl(mp, off, val); ++} + +- dev = alloc_etherdev(sizeof(struct mv643xx_private)); +- if (!dev) +- return -ENOMEM; ++static void txq_set_wrr(struct tx_queue *txq, int weight) ++{ ++ struct mv643xx_eth_private *mp = txq_to_mp(txq); ++ int off; ++ u32 val; + +- platform_set_drvdata(pdev, dev); ++ /* ++ * Turn off fixed priority mode. ++ */ ++ if (mp->shared->tx_bw_control_moved) ++ off = TXQ_FIX_PRIO_CONF_MOVED(mp->port_num); ++ else ++ off = TXQ_FIX_PRIO_CONF(mp->port_num); + +- mp = netdev_priv(dev); +- mp->dev = dev; +-#ifdef MV643XX_NAPI +- netif_napi_add(dev, &mp->napi, mv643xx_poll, 64); +-#endif ++ val = rdl(mp, off); ++ val &= ~(1 << txq->index); ++ wrl(mp, off, val); + +- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); +- BUG_ON(!res); +- dev->irq = res->start; ++ /* ++ * Configure WRR weight for this queue. ++ */ ++ off = TXQ_BW_WRR_CONF(mp->port_num, txq->index); + +- dev->open = mv643xx_eth_open; +- dev->stop = mv643xx_eth_stop; +- dev->hard_start_xmit = mv643xx_eth_start_xmit; +- dev->set_mac_address = mv643xx_eth_set_mac_address; +- dev->set_multicast_list = mv643xx_eth_set_rx_mode; ++ val = rdl(mp, off); ++ val = (val & ~0xff) | (weight & 0xff); ++ wrl(mp, off, val); ++} + +- /* No need to Tx Timeout */ +- dev->tx_timeout = mv643xx_eth_tx_timeout; + +-#ifdef CONFIG_NET_POLL_CONTROLLER +- dev->poll_controller = mv643xx_netpoll; +-#endif ++/* mii management interface *************************************************/ ++#define SMI_BUSY 0x10000000 ++#define SMI_READ_VALID 0x08000000 ++#define SMI_OPCODE_READ 0x04000000 ++#define SMI_OPCODE_WRITE 0x00000000 + +- dev->watchdog_timeo = 2 * HZ; +- dev->base_addr = 0; +- dev->change_mtu = mv643xx_eth_change_mtu; +- dev->do_ioctl = mv643xx_eth_do_ioctl; +- SET_ETHTOOL_OPS(dev, &mv643xx_ethtool_ops); ++static void smi_reg_read(struct mv643xx_eth_private *mp, unsigned int addr, ++ unsigned int reg, unsigned int *value) ++{ ++ void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; ++ unsigned long flags; ++ int i; ++ ++ /* the SMI register is a shared resource */ ++ spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); ++ ++ /* wait for the SMI register to become available */ ++ for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { ++ if (i == 1000) { ++ printk("%s: PHY busy timeout\n", mp->dev->name); ++ goto out; ++ } ++ udelay(10); ++ } ++ ++ writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg); ++ ++ /* now wait for the data to be valid */ ++ for (i = 0; !(readl(smi_reg) & SMI_READ_VALID); i++) { ++ if (i == 1000) { ++ printk("%s: PHY read timeout\n", mp->dev->name); ++ goto out; ++ } ++ udelay(10); ++ } ++ ++ *value = readl(smi_reg) & 0xffff; ++out: ++ spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); ++} ++ ++static void smi_reg_write(struct mv643xx_eth_private *mp, ++ unsigned int addr, ++ unsigned int reg, unsigned int value) ++{ ++ void __iomem *smi_reg = mp->shared_smi->base + SMI_REG; ++ unsigned long flags; ++ int i; ++ ++ /* the SMI register is a shared resource */ ++ spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); ++ ++ /* wait for the SMI register to become available */ ++ for (i = 0; readl(smi_reg) & SMI_BUSY; i++) { ++ if (i == 1000) { ++ printk("%s: PHY busy timeout\n", mp->dev->name); ++ goto out; ++ } ++ udelay(10); ++ } ++ ++ writel(SMI_OPCODE_WRITE | (reg << 21) | ++ (addr << 16) | (value & 0xffff), smi_reg); ++out: ++ spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); ++} ++ ++ ++/* mib counters *************************************************************/ ++static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) ++{ ++ return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); ++} ++ ++static void mib_counters_clear(struct mv643xx_eth_private *mp) ++{ ++ int i; ++ ++ for (i = 0; i < 0x80; i += 4) ++ mib_read(mp, i); ++} ++ ++static void mib_counters_update(struct mv643xx_eth_private *mp) ++{ ++ struct mib_counters *p = &mp->mib_counters; ++ ++ p->good_octets_received += mib_read(mp, 0x00); ++ p->good_octets_received += (u64)mib_read(mp, 0x04) << 32; ++ p->bad_octets_received += mib_read(mp, 0x08); ++ p->internal_mac_transmit_err += mib_read(mp, 0x0c); ++ p->good_frames_received += mib_read(mp, 0x10); ++ p->bad_frames_received += mib_read(mp, 0x14); ++ p->broadcast_frames_received += mib_read(mp, 0x18); ++ p->multicast_frames_received += mib_read(mp, 0x1c); ++ p->frames_64_octets += mib_read(mp, 0x20); ++ p->frames_65_to_127_octets += mib_read(mp, 0x24); ++ p->frames_128_to_255_octets += mib_read(mp, 0x28); ++ p->frames_256_to_511_octets += mib_read(mp, 0x2c); ++ p->frames_512_to_1023_octets += mib_read(mp, 0x30); ++ p->frames_1024_to_max_octets += mib_read(mp, 0x34); ++ p->good_octets_sent += mib_read(mp, 0x38); ++ p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32; ++ p->good_frames_sent += mib_read(mp, 0x40); ++ p->excessive_collision += mib_read(mp, 0x44); ++ p->multicast_frames_sent += mib_read(mp, 0x48); ++ p->broadcast_frames_sent += mib_read(mp, 0x4c); ++ p->unrec_mac_control_received += mib_read(mp, 0x50); ++ p->fc_sent += mib_read(mp, 0x54); ++ p->good_fc_received += mib_read(mp, 0x58); ++ p->bad_fc_received += mib_read(mp, 0x5c); ++ p->undersize_received += mib_read(mp, 0x60); ++ p->fragments_received += mib_read(mp, 0x64); ++ p->oversize_received += mib_read(mp, 0x68); ++ p->jabber_received += mib_read(mp, 0x6c); ++ p->mac_receive_error += mib_read(mp, 0x70); ++ p->bad_crc_event += mib_read(mp, 0x74); ++ p->collision += mib_read(mp, 0x78); ++ p->late_collision += mib_read(mp, 0x7c); ++} ++ ++ ++/* ethtool ******************************************************************/ ++struct mv643xx_eth_stats { ++ char stat_string[ETH_GSTRING_LEN]; ++ int sizeof_stat; ++ int netdev_off; ++ int mp_off; ++}; ++ ++#define SSTAT(m) \ ++ { #m, FIELD_SIZEOF(struct net_device_stats, m), \ ++ offsetof(struct net_device, stats.m), -1 } ++ ++#define MIBSTAT(m) \ ++ { #m, FIELD_SIZEOF(struct mib_counters, m), \ ++ -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } ++ ++static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { ++ SSTAT(rx_packets), ++ SSTAT(tx_packets), ++ SSTAT(rx_bytes), ++ SSTAT(tx_bytes), ++ SSTAT(rx_errors), ++ SSTAT(tx_errors), ++ SSTAT(rx_dropped), ++ SSTAT(tx_dropped), ++ MIBSTAT(good_octets_received), ++ MIBSTAT(bad_octets_received), ++ MIBSTAT(internal_mac_transmit_err), ++ MIBSTAT(good_frames_received), ++ MIBSTAT(bad_frames_received), ++ MIBSTAT(broadcast_frames_received), ++ MIBSTAT(multicast_frames_received), ++ MIBSTAT(frames_64_octets), ++ MIBSTAT(frames_65_to_127_octets), ++ MIBSTAT(frames_128_to_255_octets), ++ MIBSTAT(frames_256_to_511_octets), ++ MIBSTAT(frames_512_to_1023_octets), ++ MIBSTAT(frames_1024_to_max_octets), ++ MIBSTAT(good_octets_sent), ++ MIBSTAT(good_frames_sent), ++ MIBSTAT(excessive_collision), ++ MIBSTAT(multicast_frames_sent), ++ MIBSTAT(broadcast_frames_sent), ++ MIBSTAT(unrec_mac_control_received), ++ MIBSTAT(fc_sent), ++ MIBSTAT(good_fc_received), ++ MIBSTAT(bad_fc_received), ++ MIBSTAT(undersize_received), ++ MIBSTAT(fragments_received), ++ MIBSTAT(oversize_received), ++ MIBSTAT(jabber_received), ++ MIBSTAT(mac_receive_error), ++ MIBSTAT(bad_crc_event), ++ MIBSTAT(collision), ++ MIBSTAT(late_collision), ++}; ++ ++static int mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) ++{ ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ int err; ++ ++ spin_lock_irq(&mp->lock); ++ err = mii_ethtool_gset(&mp->mii, cmd); ++ spin_unlock_irq(&mp->lock); + +-#ifdef MV643XX_CHECKSUM_OFFLOAD_TX +-#ifdef MAX_SKB_FRAGS + /* +- * Zero copy can only work if we use Discovery II memory. Else, we will +- * have to map the buffers to ISA memory which is only 16 MB ++ * The MAC does not support 1000baseT_Half. + */ +- dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; +-#endif +-#endif ++ cmd->supported &= ~SUPPORTED_1000baseT_Half; ++ cmd->advertising &= ~ADVERTISED_1000baseT_Half; + +- /* Configure the timeout task */ +- INIT_WORK(&mp->tx_timeout_task, mv643xx_eth_tx_timeout_task); ++ return err; ++} + +- spin_lock_init(&mp->lock); ++static int mv643xx_eth_get_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) ++{ ++ cmd->supported = SUPPORTED_MII; ++ cmd->advertising = ADVERTISED_MII; ++ cmd->speed = SPEED_1000; ++ cmd->duplex = DUPLEX_FULL; ++ cmd->port = PORT_MII; ++ cmd->phy_address = 0; ++ cmd->transceiver = XCVR_INTERNAL; ++ cmd->autoneg = AUTONEG_DISABLE; ++ cmd->maxtxpkt = 1; ++ cmd->maxrxpkt = 1; + +- mp->shared = platform_get_drvdata(pd->shared); +- port_num = mp->port_num = pd->port_number; ++ return 0; ++} + +- if (mp->shared->win_protect) +- wrl(mp, WINDOW_PROTECT(port_num), mp->shared->win_protect); ++static int mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) ++{ ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ int err; + +- mp->shared_smi = mp->shared; +- if (pd->shared_smi != NULL) +- mp->shared_smi = platform_get_drvdata(pd->shared_smi); +- +- /* set default config values */ +- eth_port_uc_addr_get(mp, dev->dev_addr); +- mp->rx_ring_size = PORT_DEFAULT_RECEIVE_QUEUE_SIZE; +- mp->tx_ring_size = PORT_DEFAULT_TRANSMIT_QUEUE_SIZE; ++ /* ++ * The MAC does not support 1000baseT_Half. ++ */ ++ cmd->advertising &= ~ADVERTISED_1000baseT_Half; + +- if (is_valid_ether_addr(pd->mac_addr)) +- memcpy(dev->dev_addr, pd->mac_addr, 6); ++ spin_lock_irq(&mp->lock); ++ err = mii_ethtool_sset(&mp->mii, cmd); ++ spin_unlock_irq(&mp->lock); + +- if (pd->phy_addr || pd->force_phy_addr) +- ethernet_phy_set(mp, pd->phy_addr); ++ return err; ++} + +- if (pd->rx_queue_size) +- mp->rx_ring_size = pd->rx_queue_size; ++static int mv643xx_eth_set_settings_phyless(struct net_device *dev, struct ethtool_cmd *cmd) ++{ ++ return -EINVAL; ++} + +- if (pd->tx_queue_size) +- mp->tx_ring_size = pd->tx_queue_size; ++static void mv643xx_eth_get_drvinfo(struct net_device *dev, ++ struct ethtool_drvinfo *drvinfo) ++{ ++ strncpy(drvinfo->driver, mv643xx_eth_driver_name, 32); ++ strncpy(drvinfo->version, mv643xx_eth_driver_version, 32); ++ strncpy(drvinfo->fw_version, "N/A", 32); ++ strncpy(drvinfo->bus_info, "platform", 32); ++ drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats); ++} ++ ++static int mv643xx_eth_nway_reset(struct net_device *dev) ++{ ++ struct mv643xx_eth_private *mp = netdev_priv(dev); + +- if (pd->tx_sram_size) { +- mp->tx_sram_size = pd->tx_sram_size; +- mp->tx_sram_addr = pd->tx_sram_addr; ++ return mii_nway_restart(&mp->mii); ++} ++ ++static int mv643xx_eth_nway_reset_phyless(struct net_device *dev) ++{ ++ return -EINVAL; ++} ++ ++static u32 mv643xx_eth_get_link(struct net_device *dev) ++{ ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ ++ return mii_link_ok(&mp->mii); ++} ++ ++static u32 mv643xx_eth_get_link_phyless(struct net_device *dev) ++{ ++ return 1; ++} ++ ++static void mv643xx_eth_get_strings(struct net_device *dev, ++ uint32_t stringset, uint8_t *data) ++{ ++ int i; ++ ++ if (stringset == ETH_SS_STATS) { ++ for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { ++ memcpy(data + i * ETH_GSTRING_LEN, ++ mv643xx_eth_stats[i].stat_string, ++ ETH_GSTRING_LEN); ++ } + } ++} ++ ++static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, ++ struct ethtool_stats *stats, ++ uint64_t *data) ++{ ++ struct mv643xx_eth_private *mp = dev->priv; ++ int i; ++ ++ mib_counters_update(mp); ++ ++ for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { ++ const struct mv643xx_eth_stats *stat; ++ void *p; ++ ++ stat = mv643xx_eth_stats + i; ++ ++ if (stat->netdev_off >= 0) ++ p = ((void *)mp->dev) + stat->netdev_off; ++ else ++ p = ((void *)mp) + stat->mp_off; + +- if (pd->rx_sram_size) { +- mp->rx_sram_size = pd->rx_sram_size; +- mp->rx_sram_addr = pd->rx_sram_addr; ++ data[i] = (stat->sizeof_stat == 8) ? ++ *(uint64_t *)p : *(uint32_t *)p; + } ++} + +- duplex = pd->duplex; +- speed = pd->speed; ++static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset) ++{ ++ if (sset == ETH_SS_STATS) ++ return ARRAY_SIZE(mv643xx_eth_stats); + +- /* Hook up MII support for ethtool */ +- mp->mii.dev = dev; +- mp->mii.mdio_read = mv643xx_mdio_read; +- mp->mii.mdio_write = mv643xx_mdio_write; +- mp->mii.phy_id = ethernet_phy_get(mp); +- mp->mii.phy_id_mask = 0x3f; +- mp->mii.reg_num_mask = 0x1f; ++ return -EOPNOTSUPP; ++} + +- err = ethernet_phy_detect(mp); +- if (err) { +- pr_debug("%s: No PHY detected at addr %d\n", +- dev->name, ethernet_phy_get(mp)); ++static const struct ethtool_ops mv643xx_eth_ethtool_ops = { ++ .get_settings = mv643xx_eth_get_settings, ++ .set_settings = mv643xx_eth_set_settings, ++ .get_drvinfo = mv643xx_eth_get_drvinfo, ++ .nway_reset = mv643xx_eth_nway_reset, ++ .get_link = mv643xx_eth_get_link, ++ .set_sg = ethtool_op_set_sg, ++ .get_strings = mv643xx_eth_get_strings, ++ .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, ++ .get_sset_count = mv643xx_eth_get_sset_count, ++}; ++ ++static const struct ethtool_ops mv643xx_eth_ethtool_ops_phyless = { ++ .get_settings = mv643xx_eth_get_settings_phyless, ++ .set_settings = mv643xx_eth_set_settings_phyless, ++ .get_drvinfo = mv643xx_eth_get_drvinfo, ++ .nway_reset = mv643xx_eth_nway_reset_phyless, ++ .get_link = mv643xx_eth_get_link_phyless, ++ .set_sg = ethtool_op_set_sg, ++ .get_strings = mv643xx_eth_get_strings, ++ .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, ++ .get_sset_count = mv643xx_eth_get_sset_count, ++}; ++ ++ ++/* address handling *********************************************************/ ++static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr) ++{ ++ unsigned int mac_h; ++ unsigned int mac_l; ++ ++ mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num)); ++ mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num)); ++ ++ addr[0] = (mac_h >> 24) & 0xff; ++ addr[1] = (mac_h >> 16) & 0xff; ++ addr[2] = (mac_h >> 8) & 0xff; ++ addr[3] = mac_h & 0xff; ++ addr[4] = (mac_l >> 8) & 0xff; ++ addr[5] = mac_l & 0xff; ++} ++ ++static void init_mac_tables(struct mv643xx_eth_private *mp) ++{ ++ int i; ++ ++ for (i = 0; i < 0x100; i += 4) { ++ wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); ++ wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); ++ } ++ ++ for (i = 0; i < 0x10; i += 4) ++ wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0); ++} ++ ++static void set_filter_table_entry(struct mv643xx_eth_private *mp, ++ int table, unsigned char entry) ++{ ++ unsigned int table_reg; ++ ++ /* Set "accepts frame bit" at specified table entry */ ++ table_reg = rdl(mp, table + (entry & 0xfc)); ++ table_reg |= 0x01 << (8 * (entry & 3)); ++ wrl(mp, table + (entry & 0xfc), table_reg); ++} ++ ++static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr) ++{ ++ unsigned int mac_h; ++ unsigned int mac_l; ++ int table; ++ ++ mac_l = (addr[4] << 8) | addr[5]; ++ mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; ++ ++ wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l); ++ wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h); ++ ++ table = UNICAST_TABLE(mp->port_num); ++ set_filter_table_entry(mp, table, addr[5] & 0x0f); ++} ++ ++static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) ++{ ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ ++ /* +2 is for the offset of the HW addr type */ ++ memcpy(dev->dev_addr, addr + 2, 6); ++ ++ init_mac_tables(mp); ++ uc_addr_set(mp, dev->dev_addr); ++ ++ return 0; ++} ++ ++static int addr_crc(unsigned char *addr) ++{ ++ int crc = 0; ++ int i; ++ ++ for (i = 0; i < 6; i++) { ++ int j; ++ ++ crc = (crc ^ addr[i]) << 8; ++ for (j = 7; j >= 0; j--) { ++ if (crc & (0x100 << j)) ++ crc ^= 0x107 << j; ++ } ++ } ++ ++ return crc; ++} ++ ++static void mv643xx_eth_set_rx_mode(struct net_device *dev) ++{ ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ u32 port_config; ++ struct dev_addr_list *addr; ++ int i; ++ ++ port_config = rdl(mp, PORT_CONFIG(mp->port_num)); ++ if (dev->flags & IFF_PROMISC) ++ port_config |= UNICAST_PROMISCUOUS_MODE; ++ else ++ port_config &= ~UNICAST_PROMISCUOUS_MODE; ++ wrl(mp, PORT_CONFIG(mp->port_num), port_config); ++ ++ if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) { ++ int port_num = mp->port_num; ++ u32 accept = 0x01010101; ++ ++ for (i = 0; i < 0x100; i += 4) { ++ wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept); ++ wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept); ++ } ++ return; ++ } ++ ++ for (i = 0; i < 0x100; i += 4) { ++ wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0); ++ wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0); ++ } ++ ++ for (addr = dev->mc_list; addr != NULL; addr = addr->next) { ++ u8 *a = addr->da_addr; ++ int table; ++ ++ if (addr->da_addrlen != 6) ++ continue; ++ ++ if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { ++ table = SPECIAL_MCAST_TABLE(mp->port_num); ++ set_filter_table_entry(mp, table, a[5]); ++ } else { ++ int crc = addr_crc(a); ++ ++ table = OTHER_MCAST_TABLE(mp->port_num); ++ set_filter_table_entry(mp, table, crc); ++ } ++ } ++} ++ ++ ++/* rx/tx queue initialisation ***********************************************/ ++static int rxq_init(struct mv643xx_eth_private *mp, int index) ++{ ++ struct rx_queue *rxq = mp->rxq + index; ++ struct rx_desc *rx_desc; ++ int size; ++ int i; ++ ++ rxq->index = index; ++ ++ rxq->rx_ring_size = mp->default_rx_ring_size; ++ ++ rxq->rx_desc_count = 0; ++ rxq->rx_curr_desc = 0; ++ rxq->rx_used_desc = 0; ++ ++ size = rxq->rx_ring_size * sizeof(struct rx_desc); ++ ++ if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) { ++ rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, ++ mp->rx_desc_sram_size); ++ rxq->rx_desc_dma = mp->rx_desc_sram_addr; ++ } else { ++ rxq->rx_desc_area = dma_alloc_coherent(NULL, size, ++ &rxq->rx_desc_dma, ++ GFP_KERNEL); ++ } ++ ++ if (rxq->rx_desc_area == NULL) { ++ dev_printk(KERN_ERR, &mp->dev->dev, ++ "can't allocate rx ring (%d bytes)\n", size); + goto out; + } ++ memset(rxq->rx_desc_area, 0, size); + +- ethernet_phy_reset(mp); +- mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); +- mv643xx_init_ethtool_cmd(dev, mp->mii.phy_id, speed, duplex, &cmd); +- mv643xx_eth_update_pscr(dev, &cmd); +- mv643xx_set_settings(dev, &cmd); ++ rxq->rx_desc_area_size = size; ++ rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb), ++ GFP_KERNEL); ++ if (rxq->rx_skb == NULL) { ++ dev_printk(KERN_ERR, &mp->dev->dev, ++ "can't allocate rx skb ring\n"); ++ goto out_free; ++ } + +- SET_NETDEV_DEV(dev, &pdev->dev); +- err = register_netdev(dev); +- if (err) ++ rx_desc = (struct rx_desc *)rxq->rx_desc_area; ++ for (i = 0; i < rxq->rx_ring_size; i++) { ++ int nexti = (i + 1) % rxq->rx_ring_size; ++ rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + ++ nexti * sizeof(struct rx_desc); ++ } ++ ++ init_timer(&rxq->rx_oom); ++ rxq->rx_oom.data = (unsigned long)rxq; ++ rxq->rx_oom.function = rxq_refill_timer_wrapper; ++ ++ return 0; ++ ++ ++out_free: ++ if (index == mp->rxq_primary && size <= mp->rx_desc_sram_size) ++ iounmap(rxq->rx_desc_area); ++ else ++ dma_free_coherent(NULL, size, ++ rxq->rx_desc_area, ++ rxq->rx_desc_dma); ++ ++out: ++ return -ENOMEM; ++} ++ ++static void rxq_deinit(struct rx_queue *rxq) ++{ ++ struct mv643xx_eth_private *mp = rxq_to_mp(rxq); ++ int i; ++ ++ rxq_disable(rxq); ++ ++ del_timer_sync(&rxq->rx_oom); ++ ++ for (i = 0; i < rxq->rx_ring_size; i++) { ++ if (rxq->rx_skb[i]) { ++ dev_kfree_skb(rxq->rx_skb[i]); ++ rxq->rx_desc_count--; ++ } ++ } ++ ++ if (rxq->rx_desc_count) { ++ dev_printk(KERN_ERR, &mp->dev->dev, ++ "error freeing rx ring -- %d skbs stuck\n", ++ rxq->rx_desc_count); ++ } ++ ++ if (rxq->index == mp->rxq_primary && ++ rxq->rx_desc_area_size <= mp->rx_desc_sram_size) ++ iounmap(rxq->rx_desc_area); ++ else ++ dma_free_coherent(NULL, rxq->rx_desc_area_size, ++ rxq->rx_desc_area, rxq->rx_desc_dma); ++ ++ kfree(rxq->rx_skb); ++} ++ ++static int txq_init(struct mv643xx_eth_private *mp, int index) ++{ ++ struct tx_queue *txq = mp->txq + index; ++ struct tx_desc *tx_desc; ++ int size; ++ int i; ++ ++ txq->index = index; ++ ++ txq->tx_ring_size = mp->default_tx_ring_size; ++ ++ txq->tx_desc_count = 0; ++ txq->tx_curr_desc = 0; ++ txq->tx_used_desc = 0; ++ ++ size = txq->tx_ring_size * sizeof(struct tx_desc); ++ ++ if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) { ++ txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, ++ mp->tx_desc_sram_size); ++ txq->tx_desc_dma = mp->tx_desc_sram_addr; ++ } else { ++ txq->tx_desc_area = dma_alloc_coherent(NULL, size, ++ &txq->tx_desc_dma, ++ GFP_KERNEL); ++ } ++ ++ if (txq->tx_desc_area == NULL) { ++ dev_printk(KERN_ERR, &mp->dev->dev, ++ "can't allocate tx ring (%d bytes)\n", size); + goto out; ++ } ++ memset(txq->tx_desc_area, 0, size); + +- p = dev->dev_addr; +- printk(KERN_NOTICE +- "%s: port %d with MAC address %s\n", +- dev->name, port_num, print_mac(mac, p)); ++ txq->tx_desc_area_size = size; ++ txq->tx_skb = kmalloc(txq->tx_ring_size * sizeof(*txq->tx_skb), ++ GFP_KERNEL); ++ if (txq->tx_skb == NULL) { ++ dev_printk(KERN_ERR, &mp->dev->dev, ++ "can't allocate tx skb ring\n"); ++ goto out_free; ++ } + +- if (dev->features & NETIF_F_SG) +- printk(KERN_NOTICE "%s: Scatter Gather Enabled\n", dev->name); ++ tx_desc = (struct tx_desc *)txq->tx_desc_area; ++ for (i = 0; i < txq->tx_ring_size; i++) { ++ int nexti = (i + 1) % txq->tx_ring_size; ++ tx_desc[i].next_desc_ptr = txq->tx_desc_dma + ++ nexti * sizeof(struct tx_desc); ++ } + +- if (dev->features & NETIF_F_IP_CSUM) +- printk(KERN_NOTICE "%s: TX TCP/IP Checksumming Supported\n", +- dev->name); ++ return 0; ++ ++ ++out_free: ++ if (index == mp->txq_primary && size <= mp->tx_desc_sram_size) ++ iounmap(txq->tx_desc_area); ++ else ++ dma_free_coherent(NULL, size, ++ txq->tx_desc_area, ++ txq->tx_desc_dma); ++ ++out: ++ return -ENOMEM; ++} ++ ++static void txq_reclaim(struct tx_queue *txq, int force) ++{ ++ struct mv643xx_eth_private *mp = txq_to_mp(txq); ++ unsigned long flags; ++ ++ spin_lock_irqsave(&mp->lock, flags); ++ while (txq->tx_desc_count > 0) { ++ int tx_index; ++ struct tx_desc *desc; ++ u32 cmd_sts; ++ struct sk_buff *skb; ++ dma_addr_t addr; ++ int count; ++ ++ tx_index = txq->tx_used_desc; ++ desc = &txq->tx_desc_area[tx_index]; ++ cmd_sts = desc->cmd_sts; ++ ++ if (!force && (cmd_sts & BUFFER_OWNED_BY_DMA)) ++ break; ++ ++ txq->tx_used_desc = (tx_index + 1) % txq->tx_ring_size; ++ txq->tx_desc_count--; ++ ++ addr = desc->buf_ptr; ++ count = desc->byte_cnt; ++ skb = txq->tx_skb[tx_index]; ++ txq->tx_skb[tx_index] = NULL; ++ ++ if (cmd_sts & ERROR_SUMMARY) { ++ dev_printk(KERN_INFO, &mp->dev->dev, "tx error\n"); ++ mp->dev->stats.tx_errors++; ++ } ++ ++ /* ++ * Drop mp->lock while we free the skb. ++ */ ++ spin_unlock_irqrestore(&mp->lock, flags); + +-#ifdef MV643XX_CHECKSUM_OFFLOAD_TX +- printk(KERN_NOTICE "%s: RX TCP/UDP Checksum Offload ON \n", dev->name); ++ if (cmd_sts & TX_FIRST_DESC) ++ dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE); ++ else ++ dma_unmap_page(NULL, addr, count, DMA_TO_DEVICE); ++ ++ if (skb) ++ dev_kfree_skb_irq(skb); ++ ++ spin_lock_irqsave(&mp->lock, flags); ++ } ++ spin_unlock_irqrestore(&mp->lock, flags); ++} ++ ++static void txq_deinit(struct tx_queue *txq) ++{ ++ struct mv643xx_eth_private *mp = txq_to_mp(txq); ++ ++ txq_disable(txq); ++ txq_reclaim(txq, 1); ++ ++ BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); ++ ++ if (txq->index == mp->txq_primary && ++ txq->tx_desc_area_size <= mp->tx_desc_sram_size) ++ iounmap(txq->tx_desc_area); ++ else ++ dma_free_coherent(NULL, txq->tx_desc_area_size, ++ txq->tx_desc_area, txq->tx_desc_dma); ++ ++ kfree(txq->tx_skb); ++} ++ ++ ++/* netdev ops and related ***************************************************/ ++static void update_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) ++{ ++ u32 pscr_o; ++ u32 pscr_n; ++ ++ pscr_o = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); ++ ++ /* clear speed, duplex and rx buffer size fields */ ++ pscr_n = pscr_o & ~(SET_MII_SPEED_TO_100 | ++ SET_GMII_SPEED_TO_1000 | ++ SET_FULL_DUPLEX_MODE | ++ MAX_RX_PACKET_MASK); ++ ++ if (speed == SPEED_1000) { ++ pscr_n |= SET_GMII_SPEED_TO_1000 | MAX_RX_PACKET_9700BYTE; ++ } else { ++ if (speed == SPEED_100) ++ pscr_n |= SET_MII_SPEED_TO_100; ++ pscr_n |= MAX_RX_PACKET_1522BYTE; ++ } ++ ++ if (duplex == DUPLEX_FULL) ++ pscr_n |= SET_FULL_DUPLEX_MODE; ++ ++ if (pscr_n != pscr_o) { ++ if ((pscr_o & SERIAL_PORT_ENABLE) == 0) ++ wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); ++ else { ++ int i; ++ ++ for (i = 0; i < 8; i++) ++ if (mp->txq_mask & (1 << i)) ++ txq_disable(mp->txq + i); ++ ++ pscr_o &= ~SERIAL_PORT_ENABLE; ++ wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_o); ++ wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); ++ wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr_n); ++ ++ for (i = 0; i < 8; i++) ++ if (mp->txq_mask & (1 << i)) ++ txq_enable(mp->txq + i); ++ } ++ } ++} ++ ++static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) ++{ ++ struct net_device *dev = (struct net_device *)dev_id; ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ u32 int_cause; ++ u32 int_cause_ext; ++ u32 txq_active; ++ ++ int_cause = rdl(mp, INT_CAUSE(mp->port_num)) & ++ (INT_TX_END | INT_RX | INT_EXT); ++ if (int_cause == 0) ++ return IRQ_NONE; ++ ++ int_cause_ext = 0; ++ if (int_cause & INT_EXT) { ++ int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)) ++ & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); ++ wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); ++ } ++ ++ if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) { ++ if (mp->phy_addr == -1 || mii_link_ok(&mp->mii)) { ++ int i; ++ ++ if (mp->phy_addr != -1) { ++ struct ethtool_cmd cmd; ++ ++ mii_ethtool_gset(&mp->mii, &cmd); ++ update_pscr(mp, cmd.speed, cmd.duplex); ++ } ++ ++ for (i = 0; i < 8; i++) ++ if (mp->txq_mask & (1 << i)) ++ txq_enable(mp->txq + i); ++ ++ if (!netif_carrier_ok(dev)) { ++ netif_carrier_on(dev); ++ __txq_maybe_wake(mp->txq + mp->txq_primary); ++ } ++ } else if (netif_carrier_ok(dev)) { ++ netif_stop_queue(dev); ++ netif_carrier_off(dev); ++ } ++ } ++ ++ /* ++ * RxBuffer or RxError set for any of the 8 queues? ++ */ ++#ifdef MV643XX_ETH_NAPI ++ if (int_cause & INT_RX) { ++ wrl(mp, INT_MASK(mp->port_num), 0x00000000); ++ rdl(mp, INT_MASK(mp->port_num)); ++ ++ netif_rx_schedule(dev, &mp->napi); ++ } ++#else ++ if (int_cause & INT_RX) { ++ int i; ++ ++ for (i = 7; i >= 0; i--) ++ if (mp->rxq_mask & (1 << i)) ++ rxq_process(mp->rxq + i, INT_MAX); ++ } + #endif + +-#ifdef MV643XX_COAL +- printk(KERN_NOTICE "%s: TX and RX Interrupt Coalescing ON \n", +- dev->name); +-#endif ++ txq_active = rdl(mp, TXQ_COMMAND(mp->port_num)); ++ ++ /* ++ * TxBuffer or TxError set for any of the 8 queues? ++ */ ++ if (int_cause_ext & INT_EXT_TX) { ++ int i; ++ ++ for (i = 0; i < 8; i++) ++ if (mp->txq_mask & (1 << i)) ++ txq_reclaim(mp->txq + i, 0); ++ } ++ ++ /* ++ * Any TxEnd interrupts? ++ */ ++ if (int_cause & INT_TX_END) { ++ int i; ++ ++ wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_TX_END)); ++ for (i = 0; i < 8; i++) { ++ struct tx_queue *txq = mp->txq + i; ++ if (txq->tx_desc_count && !((txq_active >> i) & 1)) ++ txq_enable(txq); ++ } ++ } ++ ++ /* ++ * Enough space again in the primary TX queue for a full packet? ++ */ ++ if (int_cause_ext & INT_EXT_TX) { ++ struct tx_queue *txq = mp->txq + mp->txq_primary; ++ __txq_maybe_wake(txq); ++ } ++ ++ return IRQ_HANDLED; ++} ++ ++static void phy_reset(struct mv643xx_eth_private *mp) ++{ ++ unsigned int data; ++ ++ smi_reg_read(mp, mp->phy_addr, 0, &data); ++ data |= 0x8000; ++ smi_reg_write(mp, mp->phy_addr, 0, data); ++ ++ do { ++ udelay(1); ++ smi_reg_read(mp, mp->phy_addr, 0, &data); ++ } while (data & 0x8000); ++} ++ ++static void port_start(struct mv643xx_eth_private *mp) ++{ ++ u32 pscr; ++ int i; ++ ++ /* ++ * Configure basic link parameters. ++ */ ++ pscr = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); ++ pscr &= ~(SERIAL_PORT_ENABLE | FORCE_LINK_PASS); ++ wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); ++ pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL | ++ DISABLE_AUTO_NEG_SPEED_GMII | ++ DISABLE_AUTO_NEG_FOR_DUPLEX | ++ DO_NOT_FORCE_LINK_FAIL | ++ SERIAL_PORT_CONTROL_RESERVED; ++ wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); ++ pscr |= SERIAL_PORT_ENABLE; ++ wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), pscr); ++ ++ wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE); ++ ++ /* ++ * Perform PHY reset, if there is a PHY. ++ */ ++ if (mp->phy_addr != -1) { ++ struct ethtool_cmd cmd; ++ ++ mv643xx_eth_get_settings(mp->dev, &cmd); ++ phy_reset(mp); ++ mv643xx_eth_set_settings(mp->dev, &cmd); ++ } ++ ++ /* ++ * Configure TX path and queues. ++ */ ++ tx_set_rate(mp, 1000000000, 16777216); ++ for (i = 0; i < 8; i++) { ++ struct tx_queue *txq = mp->txq + i; ++ int off = TXQ_CURRENT_DESC_PTR(mp->port_num, i); ++ u32 addr; ++ ++ if ((mp->txq_mask & (1 << i)) == 0) ++ continue; ++ ++ addr = (u32)txq->tx_desc_dma; ++ addr += txq->tx_curr_desc * sizeof(struct tx_desc); ++ wrl(mp, off, addr); ++ ++ txq_set_rate(txq, 1000000000, 16777216); ++ txq_set_fixed_prio_mode(txq); ++ } ++ ++ /* ++ * Add configured unicast address to address filter table. ++ */ ++ uc_addr_set(mp, mp->dev->dev_addr); ++ ++ /* ++ * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast ++ * frames to RX queue #0. ++ */ ++ wrl(mp, PORT_CONFIG(mp->port_num), 0x00000000); + +-#ifdef MV643XX_NAPI +- printk(KERN_NOTICE "%s: RX NAPI Enabled \n", dev->name); +-#endif ++ /* ++ * Treat BPDUs as normal multicasts, and disable partition mode. ++ */ ++ wrl(mp, PORT_CONFIG_EXT(mp->port_num), 0x00000000); + +- if (mp->tx_sram_size > 0) +- printk(KERN_NOTICE "%s: Using SRAM\n", dev->name); ++ /* ++ * Enable the receive queues. ++ */ ++ for (i = 0; i < 8; i++) { ++ struct rx_queue *rxq = mp->rxq + i; ++ int off = RXQ_CURRENT_DESC_PTR(mp->port_num, i); ++ u32 addr; + +- return 0; ++ if ((mp->rxq_mask & (1 << i)) == 0) ++ continue; + +-out: +- free_netdev(dev); ++ addr = (u32)rxq->rx_desc_dma; ++ addr += rxq->rx_curr_desc * sizeof(struct rx_desc); ++ wrl(mp, off, addr); + +- return err; ++ rxq_enable(rxq); ++ } + } + +-static int mv643xx_eth_remove(struct platform_device *pdev) ++static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int delay) + { +- struct net_device *dev = platform_get_drvdata(pdev); ++ unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; ++ u32 val; + +- unregister_netdev(dev); +- flush_scheduled_work(); ++ val = rdl(mp, SDMA_CONFIG(mp->port_num)); ++ if (mp->shared->extended_rx_coal_limit) { ++ if (coal > 0xffff) ++ coal = 0xffff; ++ val &= ~0x023fff80; ++ val |= (coal & 0x8000) << 10; ++ val |= (coal & 0x7fff) << 7; ++ } else { ++ if (coal > 0x3fff) ++ coal = 0x3fff; ++ val &= ~0x003fff00; ++ val |= (coal & 0x3fff) << 8; ++ } ++ wrl(mp, SDMA_CONFIG(mp->port_num), val); ++} + +- free_netdev(dev); +- platform_set_drvdata(pdev, NULL); +- return 0; ++static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int delay) ++{ ++ unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; ++ ++ if (coal > 0x3fff) ++ coal = 0x3fff; ++ wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4); + } + +-static void mv643xx_eth_conf_mbus_windows(struct mv643xx_shared_private *msp, +- struct mbus_dram_target_info *dram) ++static int mv643xx_eth_open(struct net_device *dev) + { +- void __iomem *base = msp->eth_base; +- u32 win_enable; +- u32 win_protect; ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ int err; + int i; + +- for (i = 0; i < 6; i++) { +- writel(0, base + WINDOW_BASE(i)); +- writel(0, base + WINDOW_SIZE(i)); +- if (i < 4) +- writel(0, base + WINDOW_REMAP_HIGH(i)); ++ wrl(mp, INT_CAUSE(mp->port_num), 0); ++ wrl(mp, INT_CAUSE_EXT(mp->port_num), 0); ++ rdl(mp, INT_CAUSE_EXT(mp->port_num)); ++ ++ err = request_irq(dev->irq, mv643xx_eth_irq, ++ IRQF_SHARED | IRQF_SAMPLE_RANDOM, ++ dev->name, dev); ++ if (err) { ++ dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n"); ++ return -EAGAIN; + } + +- win_enable = 0x3f; +- win_protect = 0; +- +- for (i = 0; i < dram->num_cs; i++) { +- struct mbus_dram_window *cs = dram->cs + i; ++ init_mac_tables(mp); + +- writel((cs->base & 0xffff0000) | +- (cs->mbus_attr << 8) | +- dram->mbus_dram_target_id, base + WINDOW_BASE(i)); +- writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); ++ for (i = 0; i < 8; i++) { ++ if ((mp->rxq_mask & (1 << i)) == 0) ++ continue; ++ ++ err = rxq_init(mp, i); ++ if (err) { ++ while (--i >= 0) ++ if (mp->rxq_mask & (1 << i)) ++ rxq_deinit(mp->rxq + i); ++ goto out; ++ } + +- win_enable &= ~(1 << i); +- win_protect |= 3 << (2 * i); ++ rxq_refill(mp->rxq + i); + } + +- writel(win_enable, base + WINDOW_BAR_ENABLE); +- msp->win_protect = win_protect; +-} +- +-static int mv643xx_eth_shared_probe(struct platform_device *pdev) +-{ +- static int mv643xx_version_printed = 0; +- struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; +- struct mv643xx_shared_private *msp; +- struct resource *res; +- int ret; +- +- if (!mv643xx_version_printed++) +- printk(KERN_NOTICE "MV-643xx 10/100/1000 Ethernet Driver\n"); +- +- ret = -EINVAL; +- res = platform_get_resource(pdev, IORESOURCE_MEM, 0); +- if (res == NULL) +- goto out; ++ for (i = 0; i < 8; i++) { ++ if ((mp->txq_mask & (1 << i)) == 0) ++ continue; ++ ++ err = txq_init(mp, i); ++ if (err) { ++ while (--i >= 0) ++ if (mp->txq_mask & (1 << i)) ++ txq_deinit(mp->txq + i); ++ goto out_free; ++ } ++ } + +- ret = -ENOMEM; +- msp = kmalloc(sizeof(*msp), GFP_KERNEL); +- if (msp == NULL) +- goto out; +- memset(msp, 0, sizeof(*msp)); ++#ifdef MV643XX_ETH_NAPI ++ napi_enable(&mp->napi); ++#endif + +- msp->eth_base = ioremap(res->start, res->end - res->start + 1); +- if (msp->eth_base == NULL) +- goto out_free; ++ port_start(mp); + +- spin_lock_init(&msp->phy_lock); +- msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; ++ set_rx_coal(mp, 0); ++ set_tx_coal(mp, 0); + +- platform_set_drvdata(pdev, msp); ++ wrl(mp, INT_MASK_EXT(mp->port_num), ++ INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); + +- /* +- * (Re-)program MBUS remapping windows if we are asked to. +- */ +- if (pd != NULL && pd->dram != NULL) +- mv643xx_eth_conf_mbus_windows(msp, pd->dram); ++ wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); + + return 0; + ++ + out_free: +- kfree(msp); ++ for (i = 0; i < 8; i++) ++ if (mp->rxq_mask & (1 << i)) ++ rxq_deinit(mp->rxq + i); + out: +- return ret; ++ free_irq(dev->irq, dev); ++ ++ return err; + } + +-static int mv643xx_eth_shared_remove(struct platform_device *pdev) ++static void port_reset(struct mv643xx_eth_private *mp) + { +- struct mv643xx_shared_private *msp = platform_get_drvdata(pdev); ++ unsigned int data; ++ int i; + +- iounmap(msp->eth_base); +- kfree(msp); ++ for (i = 0; i < 8; i++) { ++ if (mp->rxq_mask & (1 << i)) ++ rxq_disable(mp->rxq + i); ++ if (mp->txq_mask & (1 << i)) ++ txq_disable(mp->txq + i); ++ } ++ while (!(rdl(mp, PORT_STATUS(mp->port_num)) & TX_FIFO_EMPTY)) ++ udelay(10); + +- return 0; ++ /* Reset the Enable bit in the Configuration Register */ ++ data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num)); ++ data &= ~(SERIAL_PORT_ENABLE | ++ DO_NOT_FORCE_LINK_FAIL | ++ FORCE_LINK_PASS); ++ wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data); + } + +-static void mv643xx_eth_shutdown(struct platform_device *pdev) ++static int mv643xx_eth_stop(struct net_device *dev) + { +- struct net_device *dev = platform_get_drvdata(pdev); +- struct mv643xx_private *mp = netdev_priv(dev); +- unsigned int port_num = mp->port_num; +- +- /* Mask all interrupts on ethernet port */ +- wrl(mp, INTERRUPT_MASK_REG(port_num), 0); +- rdl(mp, INTERRUPT_MASK_REG(port_num)); ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ int i; + +- eth_port_reset(mp); +-} ++ wrl(mp, INT_MASK(mp->port_num), 0x00000000); ++ rdl(mp, INT_MASK(mp->port_num)); + +-static struct platform_driver mv643xx_eth_driver = { +- .probe = mv643xx_eth_probe, +- .remove = mv643xx_eth_remove, +- .shutdown = mv643xx_eth_shutdown, +- .driver = { +- .name = MV643XX_ETH_NAME, +- .owner = THIS_MODULE, +- }, +-}; ++#ifdef MV643XX_ETH_NAPI ++ napi_disable(&mp->napi); ++#endif ++ netif_carrier_off(dev); ++ netif_stop_queue(dev); + +-static struct platform_driver mv643xx_eth_shared_driver = { +- .probe = mv643xx_eth_shared_probe, +- .remove = mv643xx_eth_shared_remove, +- .driver = { +- .name = MV643XX_ETH_SHARED_NAME, +- .owner = THIS_MODULE, +- }, +-}; ++ free_irq(dev->irq, dev); + +-/* +- * mv643xx_init_module +- * +- * Registers the network drivers into the Linux kernel +- * +- * Input : N/A +- * +- * Output : N/A +- */ +-static int __init mv643xx_init_module(void) +-{ +- int rc; ++ port_reset(mp); ++ mib_counters_update(mp); + +- rc = platform_driver_register(&mv643xx_eth_shared_driver); +- if (!rc) { +- rc = platform_driver_register(&mv643xx_eth_driver); +- if (rc) +- platform_driver_unregister(&mv643xx_eth_shared_driver); ++ for (i = 0; i < 8; i++) { ++ if (mp->rxq_mask & (1 << i)) ++ rxq_deinit(mp->rxq + i); ++ if (mp->txq_mask & (1 << i)) ++ txq_deinit(mp->txq + i); + } +- return rc; +-} + +-/* +- * mv643xx_cleanup_module +- * +- * Registers the network drivers into the Linux kernel +- * +- * Input : N/A +- * +- * Output : N/A +- */ +-static void __exit mv643xx_cleanup_module(void) +-{ +- platform_driver_unregister(&mv643xx_eth_driver); +- platform_driver_unregister(&mv643xx_eth_shared_driver); ++ return 0; + } + +-module_init(mv643xx_init_module); +-module_exit(mv643xx_cleanup_module); +- +-MODULE_LICENSE("GPL"); +-MODULE_AUTHOR( "Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, Manish Lachwani" +- " and Dale Farnsworth"); +-MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); +-MODULE_ALIAS("platform:" MV643XX_ETH_NAME); +-MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); +- +-/* +- * The second part is the low level driver of the gigE ethernet ports. +- */ +- +-/* +- * Marvell's Gigabit Ethernet controller low level driver +- * +- * DESCRIPTION: +- * This file introduce low level API to Marvell's Gigabit Ethernet +- * controller. This Gigabit Ethernet Controller driver API controls +- * 1) Operations (i.e. port init, start, reset etc'). +- * 2) Data flow (i.e. port send, receive etc'). +- * Each Gigabit Ethernet port is controlled via +- * struct mv643xx_private. +- * This struct includes user configuration information as well as +- * driver internal data needed for its operations. +- * +- * Supported Features: +- * - This low level driver is OS independent. Allocating memory for +- * the descriptor rings and buffers are not within the scope of +- * this driver. +- * - The user is free from Rx/Tx queue managing. +- * - This low level driver introduce functionality API that enable +- * the to operate Marvell's Gigabit Ethernet Controller in a +- * convenient way. +- * - Simple Gigabit Ethernet port operation API. +- * - Simple Gigabit Ethernet port data flow API. +- * - Data flow and operation API support per queue functionality. +- * - Support cached descriptors for better performance. +- * - Enable access to all four DRAM banks and internal SRAM memory +- * spaces. +- * - PHY access and control API. +- * - Port control register configuration API. +- * - Full control over Unicast and Multicast MAC configurations. +- * +- * Operation flow: +- * +- * Initialization phase +- * This phase complete the initialization of the the +- * mv643xx_private struct. +- * User information regarding port configuration has to be set +- * prior to calling the port initialization routine. +- * +- * In this phase any port Tx/Rx activity is halted, MIB counters +- * are cleared, PHY address is set according to user parameter and +- * access to DRAM and internal SRAM memory spaces. +- * +- * Driver ring initialization +- * Allocating memory for the descriptor rings and buffers is not +- * within the scope of this driver. Thus, the user is required to +- * allocate memory for the descriptors ring and buffers. Those +- * memory parameters are used by the Rx and Tx ring initialization +- * routines in order to curve the descriptor linked list in a form +- * of a ring. +- * Note: Pay special attention to alignment issues when using +- * cached descriptors/buffers. In this phase the driver store +- * information in the mv643xx_private struct regarding each queue +- * ring. +- * +- * Driver start +- * This phase prepares the Ethernet port for Rx and Tx activity. +- * It uses the information stored in the mv643xx_private struct to +- * initialize the various port registers. +- * +- * Data flow: +- * All packet references to/from the driver are done using +- * struct pkt_info. +- * This struct is a unified struct used with Rx and Tx operations. +- * This way the user is not required to be familiar with neither +- * Tx nor Rx descriptors structures. +- * The driver's descriptors rings are management by indexes. +- * Those indexes controls the ring resources and used to indicate +- * a SW resource error: +- * 'current' +- * This index points to the current available resource for use. For +- * example in Rx process this index will point to the descriptor +- * that will be passed to the user upon calling the receive +- * routine. In Tx process, this index will point to the descriptor +- * that will be assigned with the user packet info and transmitted. +- * 'used' +- * This index points to the descriptor that need to restore its +- * resources. For example in Rx process, using the Rx buffer return +- * API will attach the buffer returned in packet info to the +- * descriptor pointed by 'used'. In Tx process, using the Tx +- * descriptor return will merely return the user packet info with +- * the command status of the transmitted buffer pointed by the +- * 'used' index. Nevertheless, it is essential to use this routine +- * to update the 'used' index. +- * 'first' +- * This index supports Tx Scatter-Gather. It points to the first +- * descriptor of a packet assembled of multiple buffers. For +- * example when in middle of Such packet we have a Tx resource +- * error the 'curr' index get the value of 'first' to indicate +- * that the ring returned to its state before trying to transmit +- * this packet. +- * +- * Receive operation: +- * The eth_port_receive API set the packet information struct, +- * passed by the caller, with received information from the +- * 'current' SDMA descriptor. +- * It is the user responsibility to return this resource back +- * to the Rx descriptor ring to enable the reuse of this source. +- * Return Rx resource is done using the eth_rx_return_buff API. +- * +- * Prior to calling the initialization routine eth_port_init() the user +- * must set the following fields under mv643xx_private struct: +- * port_num User Ethernet port number. +- * port_config User port configuration value. +- * port_config_extend User port config extend value. +- * port_sdma_config User port SDMA config value. +- * port_serial_control User port serial control value. +- * +- * This driver data flow is done using the struct pkt_info which +- * is a unified struct for Rx and Tx operations: +- * +- * byte_cnt Tx/Rx descriptor buffer byte count. +- * l4i_chk CPU provided TCP Checksum. For Tx operation +- * only. +- * cmd_sts Tx/Rx descriptor command status. +- * buf_ptr Tx/Rx descriptor buffer pointer. +- * return_info Tx/Rx user resource return information. +- */ +- +-/* Ethernet Port routines */ +-static void eth_port_set_filter_table_entry(struct mv643xx_private *mp, +- int table, unsigned char entry); +- +-/* +- * eth_port_init - Initialize the Ethernet port driver +- * +- * DESCRIPTION: +- * This function prepares the ethernet port to start its activity: +- * 1) Completes the ethernet port driver struct initialization toward port +- * start routine. +- * 2) Resets the device to a quiescent state in case of warm reboot. +- * 3) Enable SDMA access to all four DRAM banks as well as internal SRAM. +- * 4) Clean MAC tables. The reset status of those tables is unknown. +- * 5) Set PHY address. +- * Note: Call this routine prior to eth_port_start routine and after +- * setting user values in the user fields of Ethernet port control +- * struct. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet port control struct +- * +- * OUTPUT: +- * See description. +- * +- * RETURN: +- * None. +- */ +-static void eth_port_init(struct mv643xx_private *mp) ++static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) + { +- mp->rx_resource_err = 0; ++ struct mv643xx_eth_private *mp = netdev_priv(dev); + +- eth_port_reset(mp); ++ if (mp->phy_addr != -1) ++ return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); + +- eth_port_init_mac_tables(mp); ++ return -EOPNOTSUPP; + } + +-/* +- * eth_port_start - Start the Ethernet port activity. +- * +- * DESCRIPTION: +- * This routine prepares the Ethernet port for Rx and Tx activity: +- * 1. Initialize Tx and Rx Current Descriptor Pointer for each queue that +- * has been initialized a descriptor's ring (using +- * ether_init_tx_desc_ring for Tx and ether_init_rx_desc_ring for Rx) +- * 2. Initialize and enable the Ethernet configuration port by writing to +- * the port's configuration and command registers. +- * 3. Initialize and enable the SDMA by writing to the SDMA's +- * configuration and command registers. After completing these steps, +- * the ethernet port SDMA can starts to perform Rx and Tx activities. +- * +- * Note: Each Rx and Tx queue descriptor's list must be initialized prior +- * to calling this function (use ether_init_tx_desc_ring for Tx queues +- * and ether_init_rx_desc_ring for Rx queues). +- * +- * INPUT: +- * dev - a pointer to the required interface +- * +- * OUTPUT: +- * Ethernet port is ready to receive and transmit. +- * +- * RETURN: +- * None. +- */ +-static void eth_port_start(struct net_device *dev) ++static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- unsigned int port_num = mp->port_num; +- int tx_curr_desc, rx_curr_desc; +- u32 pscr; +- struct ethtool_cmd ethtool_cmd; +- +- /* Assignment of Tx CTRP of given queue */ +- tx_curr_desc = mp->tx_curr_desc_q; +- wrl(mp, TX_CURRENT_QUEUE_DESC_PTR_0(port_num), +- (u32)((struct eth_tx_desc *)mp->tx_desc_dma + tx_curr_desc)); ++ struct mv643xx_eth_private *mp = netdev_priv(dev); + +- /* Assignment of Rx CRDP of given queue */ +- rx_curr_desc = mp->rx_curr_desc_q; +- wrl(mp, RX_CURRENT_QUEUE_DESC_PTR_0(port_num), +- (u32)((struct eth_rx_desc *)mp->rx_desc_dma + rx_curr_desc)); +- +- /* Add the assigned Ethernet address to the port's address table */ +- eth_port_uc_addr_set(mp, dev->dev_addr); ++ if (new_mtu < 64 || new_mtu > 9500) ++ return -EINVAL; + +- /* Assign port configuration and command. */ +- wrl(mp, PORT_CONFIG_REG(port_num), +- PORT_CONFIG_DEFAULT_VALUE); ++ dev->mtu = new_mtu; ++ tx_set_rate(mp, 1000000000, 16777216); + +- wrl(mp, PORT_CONFIG_EXTEND_REG(port_num), +- PORT_CONFIG_EXTEND_DEFAULT_VALUE); ++ if (!netif_running(dev)) ++ return 0; + +- pscr = rdl(mp, PORT_SERIAL_CONTROL_REG(port_num)); ++ /* ++ * Stop and then re-open the interface. This will allocate RX ++ * skbs of the new MTU. ++ * There is a possible danger that the open will not succeed, ++ * due to memory being full. ++ */ ++ mv643xx_eth_stop(dev); ++ if (mv643xx_eth_open(dev)) { ++ dev_printk(KERN_ERR, &dev->dev, ++ "fatal error on re-opening device after " ++ "MTU change\n"); ++ } + +- pscr &= ~(SERIAL_PORT_ENABLE | FORCE_LINK_PASS); +- wrl(mp, PORT_SERIAL_CONTROL_REG(port_num), pscr); ++ return 0; ++} + +- pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL | +- DISABLE_AUTO_NEG_SPEED_GMII | +- DISABLE_AUTO_NEG_FOR_DUPLX | +- DO_NOT_FORCE_LINK_FAIL | +- SERIAL_PORT_CONTROL_RESERVED; ++static void tx_timeout_task(struct work_struct *ugly) ++{ ++ struct mv643xx_eth_private *mp; + +- wrl(mp, PORT_SERIAL_CONTROL_REG(port_num), pscr); ++ mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); ++ if (netif_running(mp->dev)) { ++ netif_stop_queue(mp->dev); + +- pscr |= SERIAL_PORT_ENABLE; +- wrl(mp, PORT_SERIAL_CONTROL_REG(port_num), pscr); ++ port_reset(mp); ++ port_start(mp); + +- /* Assign port SDMA configuration */ +- wrl(mp, SDMA_CONFIG_REG(port_num), +- PORT_SDMA_CONFIG_DEFAULT_VALUE); +- +- /* Enable port Rx. */ +- mv643xx_eth_port_enable_rx(mp, ETH_RX_QUEUES_ENABLED); +- +- /* Disable port bandwidth limits by clearing MTU register */ +- wrl(mp, MAXIMUM_TRANSMIT_UNIT(port_num), 0); +- +- /* save phy settings across reset */ +- mv643xx_get_settings(dev, ðtool_cmd); +- ethernet_phy_reset(mp); +- mv643xx_set_settings(dev, ðtool_cmd); ++ __txq_maybe_wake(mp->txq + mp->txq_primary); ++ } + } + +-/* +- * eth_port_uc_addr_set - Write a MAC address into the port's hw registers +- */ +-static void eth_port_uc_addr_set(struct mv643xx_private *mp, +- unsigned char *p_addr) ++static void mv643xx_eth_tx_timeout(struct net_device *dev) + { +- unsigned int port_num = mp->port_num; +- unsigned int mac_h; +- unsigned int mac_l; +- int table; ++ struct mv643xx_eth_private *mp = netdev_priv(dev); + +- mac_l = (p_addr[4] << 8) | (p_addr[5]); +- mac_h = (p_addr[0] << 24) | (p_addr[1] << 16) | (p_addr[2] << 8) | +- (p_addr[3] << 0); +- +- wrl(mp, MAC_ADDR_LOW(port_num), mac_l); +- wrl(mp, MAC_ADDR_HIGH(port_num), mac_h); +- +- /* Accept frames with this address */ +- table = DA_FILTER_UNICAST_TABLE_BASE(port_num); +- eth_port_set_filter_table_entry(mp, table, p_addr[5] & 0x0f); ++ dev_printk(KERN_INFO, &dev->dev, "tx timeout\n"); ++ ++ schedule_work(&mp->tx_timeout_task); + } + +-/* +- * eth_port_uc_addr_get - Read the MAC address from the port's hw registers +- */ +-static void eth_port_uc_addr_get(struct mv643xx_private *mp, +- unsigned char *p_addr) ++#ifdef CONFIG_NET_POLL_CONTROLLER ++static void mv643xx_eth_netpoll(struct net_device *dev) + { +- unsigned int port_num = mp->port_num; +- unsigned int mac_h; +- unsigned int mac_l; ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ ++ wrl(mp, INT_MASK(mp->port_num), 0x00000000); ++ rdl(mp, INT_MASK(mp->port_num)); + +- mac_h = rdl(mp, MAC_ADDR_HIGH(port_num)); +- mac_l = rdl(mp, MAC_ADDR_LOW(port_num)); ++ mv643xx_eth_irq(dev->irq, dev); + +- p_addr[0] = (mac_h >> 24) & 0xff; +- p_addr[1] = (mac_h >> 16) & 0xff; +- p_addr[2] = (mac_h >> 8) & 0xff; +- p_addr[3] = mac_h & 0xff; +- p_addr[4] = (mac_l >> 8) & 0xff; +- p_addr[5] = mac_l & 0xff; ++ wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_CAUSE_EXT); + } ++#endif + +-/* +- * The entries in each table are indexed by a hash of a packet's MAC +- * address. One bit in each entry determines whether the packet is +- * accepted. There are 4 entries (each 8 bits wide) in each register +- * of the table. The bits in each entry are defined as follows: +- * 0 Accept=1, Drop=0 +- * 3-1 Queue (ETH_Q0=0) +- * 7-4 Reserved = 0; +- */ +-static void eth_port_set_filter_table_entry(struct mv643xx_private *mp, +- int table, unsigned char entry) ++static int mv643xx_eth_mdio_read(struct net_device *dev, int addr, int reg) + { +- unsigned int table_reg; +- unsigned int tbl_offset; +- unsigned int reg_offset; ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ int val; + +- tbl_offset = (entry / 4) * 4; /* Register offset of DA table entry */ +- reg_offset = entry % 4; /* Entry offset within the register */ ++ smi_reg_read(mp, addr, reg, &val); + +- /* Set "accepts frame bit" at specified table entry */ +- table_reg = rdl(mp, table + tbl_offset); +- table_reg |= 0x01 << (8 * reg_offset); +- wrl(mp, table + tbl_offset, table_reg); ++ return val; + } + +-/* +- * eth_port_mc_addr - Multicast address settings. +- * +- * The MV device supports multicast using two tables: +- * 1) Special Multicast Table for MAC addresses of the form +- * 0x01-00-5E-00-00-XX (where XX is between 0x00 and 0x_FF). +- * The MAC DA[7:0] bits are used as a pointer to the Special Multicast +- * Table entries in the DA-Filter table. +- * 2) Other Multicast Table for multicast of another type. A CRC-8bit +- * is used as an index to the Other Multicast Table entries in the +- * DA-Filter table. This function calculates the CRC-8bit value. +- * In either case, eth_port_set_filter_table_entry() is then called +- * to set to set the actual table entry. +- */ +-static void eth_port_mc_addr(struct mv643xx_private *mp, unsigned char *p_addr) ++static void mv643xx_eth_mdio_write(struct net_device *dev, int addr, int reg, int val) + { +- unsigned int port_num = mp->port_num; +- unsigned int mac_h; +- unsigned int mac_l; +- unsigned char crc_result = 0; +- int table; +- int mac_array[48]; +- int crc[8]; +- int i; ++ struct mv643xx_eth_private *mp = netdev_priv(dev); ++ smi_reg_write(mp, addr, reg, val); ++} + +- if ((p_addr[0] == 0x01) && (p_addr[1] == 0x00) && +- (p_addr[2] == 0x5E) && (p_addr[3] == 0x00) && (p_addr[4] == 0x00)) { +- table = DA_FILTER_SPECIAL_MULTICAST_TABLE_BASE(port_num); +- eth_port_set_filter_table_entry(mp, table, p_addr[5]); +- return; +- } + +- /* Calculate CRC-8 out of the given address */ +- mac_h = (p_addr[0] << 8) | (p_addr[1]); +- mac_l = (p_addr[2] << 24) | (p_addr[3] << 16) | +- (p_addr[4] << 8) | (p_addr[5] << 0); +- +- for (i = 0; i < 32; i++) +- mac_array[i] = (mac_l >> i) & 0x1; +- for (i = 32; i < 48; i++) +- mac_array[i] = (mac_h >> (i - 32)) & 0x1; +- +- crc[0] = mac_array[45] ^ mac_array[43] ^ mac_array[40] ^ mac_array[39] ^ +- mac_array[35] ^ mac_array[34] ^ mac_array[31] ^ mac_array[30] ^ +- mac_array[28] ^ mac_array[23] ^ mac_array[21] ^ mac_array[19] ^ +- mac_array[18] ^ mac_array[16] ^ mac_array[14] ^ mac_array[12] ^ +- mac_array[8] ^ mac_array[7] ^ mac_array[6] ^ mac_array[0]; +- +- crc[1] = mac_array[46] ^ mac_array[45] ^ mac_array[44] ^ mac_array[43] ^ +- mac_array[41] ^ mac_array[39] ^ mac_array[36] ^ mac_array[34] ^ +- mac_array[32] ^ mac_array[30] ^ mac_array[29] ^ mac_array[28] ^ +- mac_array[24] ^ mac_array[23] ^ mac_array[22] ^ mac_array[21] ^ +- mac_array[20] ^ mac_array[18] ^ mac_array[17] ^ mac_array[16] ^ +- mac_array[15] ^ mac_array[14] ^ mac_array[13] ^ mac_array[12] ^ +- mac_array[9] ^ mac_array[6] ^ mac_array[1] ^ mac_array[0]; +- +- crc[2] = mac_array[47] ^ mac_array[46] ^ mac_array[44] ^ mac_array[43] ^ +- mac_array[42] ^ mac_array[39] ^ mac_array[37] ^ mac_array[34] ^ +- mac_array[33] ^ mac_array[29] ^ mac_array[28] ^ mac_array[25] ^ +- mac_array[24] ^ mac_array[22] ^ mac_array[17] ^ mac_array[15] ^ +- mac_array[13] ^ mac_array[12] ^ mac_array[10] ^ mac_array[8] ^ +- mac_array[6] ^ mac_array[2] ^ mac_array[1] ^ mac_array[0]; +- +- crc[3] = mac_array[47] ^ mac_array[45] ^ mac_array[44] ^ mac_array[43] ^ +- mac_array[40] ^ mac_array[38] ^ mac_array[35] ^ mac_array[34] ^ +- mac_array[30] ^ mac_array[29] ^ mac_array[26] ^ mac_array[25] ^ +- mac_array[23] ^ mac_array[18] ^ mac_array[16] ^ mac_array[14] ^ +- mac_array[13] ^ mac_array[11] ^ mac_array[9] ^ mac_array[7] ^ +- mac_array[3] ^ mac_array[2] ^ mac_array[1]; +- +- crc[4] = mac_array[46] ^ mac_array[45] ^ mac_array[44] ^ mac_array[41] ^ +- mac_array[39] ^ mac_array[36] ^ mac_array[35] ^ mac_array[31] ^ +- mac_array[30] ^ mac_array[27] ^ mac_array[26] ^ mac_array[24] ^ +- mac_array[19] ^ mac_array[17] ^ mac_array[15] ^ mac_array[14] ^ +- mac_array[12] ^ mac_array[10] ^ mac_array[8] ^ mac_array[4] ^ +- mac_array[3] ^ mac_array[2]; +- +- crc[5] = mac_array[47] ^ mac_array[46] ^ mac_array[45] ^ mac_array[42] ^ +- mac_array[40] ^ mac_array[37] ^ mac_array[36] ^ mac_array[32] ^ +- mac_array[31] ^ mac_array[28] ^ mac_array[27] ^ mac_array[25] ^ +- mac_array[20] ^ mac_array[18] ^ mac_array[16] ^ mac_array[15] ^ +- mac_array[13] ^ mac_array[11] ^ mac_array[9] ^ mac_array[5] ^ +- mac_array[4] ^ mac_array[3]; +- +- crc[6] = mac_array[47] ^ mac_array[46] ^ mac_array[43] ^ mac_array[41] ^ +- mac_array[38] ^ mac_array[37] ^ mac_array[33] ^ mac_array[32] ^ +- mac_array[29] ^ mac_array[28] ^ mac_array[26] ^ mac_array[21] ^ +- mac_array[19] ^ mac_array[17] ^ mac_array[16] ^ mac_array[14] ^ +- mac_array[12] ^ mac_array[10] ^ mac_array[6] ^ mac_array[5] ^ +- mac_array[4]; +- +- crc[7] = mac_array[47] ^ mac_array[44] ^ mac_array[42] ^ mac_array[39] ^ +- mac_array[38] ^ mac_array[34] ^ mac_array[33] ^ mac_array[30] ^ +- mac_array[29] ^ mac_array[27] ^ mac_array[22] ^ mac_array[20] ^ +- mac_array[18] ^ mac_array[17] ^ mac_array[15] ^ mac_array[13] ^ +- mac_array[11] ^ mac_array[7] ^ mac_array[6] ^ mac_array[5]; ++/* platform glue ************************************************************/ ++static void ++mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, ++ struct mbus_dram_target_info *dram) ++{ ++ void __iomem *base = msp->base; ++ u32 win_enable; ++ u32 win_protect; ++ int i; + +- for (i = 0; i < 8; i++) +- crc_result = crc_result | (crc[i] << i); ++ for (i = 0; i < 6; i++) { ++ writel(0, base + WINDOW_BASE(i)); ++ writel(0, base + WINDOW_SIZE(i)); ++ if (i < 4) ++ writel(0, base + WINDOW_REMAP_HIGH(i)); ++ } + +- table = DA_FILTER_OTHER_MULTICAST_TABLE_BASE(port_num); +- eth_port_set_filter_table_entry(mp, table, crc_result); +-} ++ win_enable = 0x3f; ++ win_protect = 0; + +-/* +- * Set the entire multicast list based on dev->mc_list. +- */ +-static void eth_port_set_multicast_list(struct net_device *dev) +-{ ++ for (i = 0; i < dram->num_cs; i++) { ++ struct mbus_dram_window *cs = dram->cs + i; + +- struct dev_mc_list *mc_list; +- int i; +- int table_index; +- struct mv643xx_private *mp = netdev_priv(dev); +- unsigned int eth_port_num = mp->port_num; +- +- /* If the device is in promiscuous mode or in all multicast mode, +- * we will fully populate both multicast tables with accept. +- * This is guaranteed to yield a match on all multicast addresses... +- */ +- if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI)) { +- for (table_index = 0; table_index <= 0xFC; table_index += 4) { +- /* Set all entries in DA filter special multicast +- * table (Ex_dFSMT) +- * Set for ETH_Q0 for now +- * Bits +- * 0 Accept=1, Drop=0 +- * 3-1 Queue ETH_Q0=0 +- * 7-4 Reserved = 0; +- */ +- wrl(mp, DA_FILTER_SPECIAL_MULTICAST_TABLE_BASE(eth_port_num) + table_index, 0x01010101); ++ writel((cs->base & 0xffff0000) | ++ (cs->mbus_attr << 8) | ++ dram->mbus_dram_target_id, base + WINDOW_BASE(i)); ++ writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); + +- /* Set all entries in DA filter other multicast +- * table (Ex_dFOMT) +- * Set for ETH_Q0 for now +- * Bits +- * 0 Accept=1, Drop=0 +- * 3-1 Queue ETH_Q0=0 +- * 7-4 Reserved = 0; +- */ +- wrl(mp, DA_FILTER_OTHER_MULTICAST_TABLE_BASE(eth_port_num) + table_index, 0x01010101); +- } +- return; ++ win_enable &= ~(1 << i); ++ win_protect |= 3 << (2 * i); + } + +- /* We will clear out multicast tables every time we get the list. +- * Then add the entire new list... +- */ +- for (table_index = 0; table_index <= 0xFC; table_index += 4) { +- /* Clear DA filter special multicast table (Ex_dFSMT) */ +- wrl(mp, DA_FILTER_SPECIAL_MULTICAST_TABLE_BASE +- (eth_port_num) + table_index, 0); +- +- /* Clear DA filter other multicast table (Ex_dFOMT) */ +- wrl(mp, DA_FILTER_OTHER_MULTICAST_TABLE_BASE +- (eth_port_num) + table_index, 0); +- } +- +- /* Get pointer to net_device multicast list and add each one... */ +- for (i = 0, mc_list = dev->mc_list; +- (i < 256) && (mc_list != NULL) && (i < dev->mc_count); +- i++, mc_list = mc_list->next) +- if (mc_list->dmi_addrlen == 6) +- eth_port_mc_addr(mp, mc_list->dmi_addr); ++ writel(win_enable, base + WINDOW_BAR_ENABLE); ++ msp->win_protect = win_protect; + } + +-/* +- * eth_port_init_mac_tables - Clear all entrance in the UC, SMC and OMC tables +- * +- * DESCRIPTION: +- * Go through all the DA filter tables (Unicast, Special Multicast & +- * Other Multicast) and set each entry to 0. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * +- * OUTPUT: +- * Multicast and Unicast packets are rejected. +- * +- * RETURN: +- * None. +- */ +-static void eth_port_init_mac_tables(struct mv643xx_private *mp) ++static void infer_hw_params(struct mv643xx_eth_shared_private *msp) + { +- unsigned int port_num = mp->port_num; +- int table_index; ++ /* ++ * Check whether we have a 14-bit coal limit field in bits ++ * [21:8], or a 16-bit coal limit in bits [25,21:7] of the ++ * SDMA config register. ++ */ ++ writel(0x02000000, msp->base + SDMA_CONFIG(0)); ++ if (readl(msp->base + SDMA_CONFIG(0)) & 0x02000000) ++ msp->extended_rx_coal_limit = 1; ++ else ++ msp->extended_rx_coal_limit = 0; + +- /* Clear DA filter unicast table (Ex_dFUT) */ +- for (table_index = 0; table_index <= 0xC; table_index += 4) +- wrl(mp, DA_FILTER_UNICAST_TABLE_BASE(port_num) + +- table_index, 0); +- +- for (table_index = 0; table_index <= 0xFC; table_index += 4) { +- /* Clear DA filter special multicast table (Ex_dFSMT) */ +- wrl(mp, DA_FILTER_SPECIAL_MULTICAST_TABLE_BASE(port_num) + +- table_index, 0); +- /* Clear DA filter other multicast table (Ex_dFOMT) */ +- wrl(mp, DA_FILTER_OTHER_MULTICAST_TABLE_BASE(port_num) + +- table_index, 0); +- } ++ /* ++ * Check whether the TX rate control registers are in the ++ * old or the new place. ++ */ ++ writel(1, msp->base + TX_BW_MTU_MOVED(0)); ++ if (readl(msp->base + TX_BW_MTU_MOVED(0)) & 1) ++ msp->tx_bw_control_moved = 1; ++ else ++ msp->tx_bw_control_moved = 0; + } + +-/* +- * eth_clear_mib_counters - Clear all MIB counters +- * +- * DESCRIPTION: +- * This function clears all MIB counters of a specific ethernet port. +- * A read from the MIB counter will reset the counter. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * +- * OUTPUT: +- * After reading all MIB counters, the counters resets. +- * +- * RETURN: +- * MIB counter value. +- * +- */ +-static void eth_clear_mib_counters(struct mv643xx_private *mp) ++static int mv643xx_eth_shared_probe(struct platform_device *pdev) + { +- unsigned int port_num = mp->port_num; +- int i; +- +- /* Perform dummy reads from MIB counters */ +- for (i = ETH_MIB_GOOD_OCTETS_RECEIVED_LOW; i < ETH_MIB_LATE_COLLISION; +- i += 4) +- rdl(mp, MIB_COUNTERS_BASE(port_num) + i); +-} ++ static int mv643xx_eth_version_printed = 0; ++ struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; ++ struct mv643xx_eth_shared_private *msp; ++ struct resource *res; ++ int ret; + +-static inline u32 read_mib(struct mv643xx_private *mp, int offset) +-{ +- return rdl(mp, MIB_COUNTERS_BASE(mp->port_num) + offset); +-} ++ if (!mv643xx_eth_version_printed++) ++ printk(KERN_NOTICE "MV-643xx 10/100/1000 Ethernet Driver\n"); + +-static void eth_update_mib_counters(struct mv643xx_private *mp) +-{ +- struct mv643xx_mib_counters *p = &mp->mib_counters; +- int offset; ++ ret = -EINVAL; ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (res == NULL) ++ goto out; + +- p->good_octets_received += +- read_mib(mp, ETH_MIB_GOOD_OCTETS_RECEIVED_LOW); +- p->good_octets_received += +- (u64)read_mib(mp, ETH_MIB_GOOD_OCTETS_RECEIVED_HIGH) << 32; ++ ret = -ENOMEM; ++ msp = kmalloc(sizeof(*msp), GFP_KERNEL); ++ if (msp == NULL) ++ goto out; ++ memset(msp, 0, sizeof(*msp)); + +- for (offset = ETH_MIB_BAD_OCTETS_RECEIVED; +- offset <= ETH_MIB_FRAMES_1024_TO_MAX_OCTETS; +- offset += 4) +- *(u32 *)((char *)p + offset) += read_mib(mp, offset); ++ msp->base = ioremap(res->start, res->end - res->start + 1); ++ if (msp->base == NULL) ++ goto out_free; + +- p->good_octets_sent += read_mib(mp, ETH_MIB_GOOD_OCTETS_SENT_LOW); +- p->good_octets_sent += +- (u64)read_mib(mp, ETH_MIB_GOOD_OCTETS_SENT_HIGH) << 32; ++ spin_lock_init(&msp->phy_lock); + +- for (offset = ETH_MIB_GOOD_FRAMES_SENT; +- offset <= ETH_MIB_LATE_COLLISION; +- offset += 4) +- *(u32 *)((char *)p + offset) += read_mib(mp, offset); +-} ++ /* ++ * (Re-)program MBUS remapping windows if we are asked to. ++ */ ++ if (pd != NULL && pd->dram != NULL) ++ mv643xx_eth_conf_mbus_windows(msp, pd->dram); + +-/* +- * ethernet_phy_detect - Detect whether a phy is present +- * +- * DESCRIPTION: +- * This function tests whether there is a PHY present on +- * the specified port. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * +- * OUTPUT: +- * None +- * +- * RETURN: +- * 0 on success +- * -ENODEV on failure +- * +- */ +-static int ethernet_phy_detect(struct mv643xx_private *mp) +-{ +- unsigned int phy_reg_data0; +- int auto_neg; ++ /* ++ * Detect hardware parameters. ++ */ ++ msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; ++ infer_hw_params(msp); + +- eth_port_read_smi_reg(mp, 0, &phy_reg_data0); +- auto_neg = phy_reg_data0 & 0x1000; +- phy_reg_data0 ^= 0x1000; /* invert auto_neg */ +- eth_port_write_smi_reg(mp, 0, phy_reg_data0); +- +- eth_port_read_smi_reg(mp, 0, &phy_reg_data0); +- if ((phy_reg_data0 & 0x1000) == auto_neg) +- return -ENODEV; /* change didn't take */ ++ platform_set_drvdata(pdev, msp); + +- phy_reg_data0 ^= 0x1000; +- eth_port_write_smi_reg(mp, 0, phy_reg_data0); + return 0; ++ ++out_free: ++ kfree(msp); ++out: ++ return ret; + } + +-/* +- * ethernet_phy_get - Get the ethernet port PHY address. +- * +- * DESCRIPTION: +- * This routine returns the given ethernet port PHY address. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * +- * OUTPUT: +- * None. +- * +- * RETURN: +- * PHY address. +- * +- */ +-static int ethernet_phy_get(struct mv643xx_private *mp) ++static int mv643xx_eth_shared_remove(struct platform_device *pdev) + { +- unsigned int reg_data; ++ struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); + +- reg_data = rdl(mp, PHY_ADDR_REG); ++ iounmap(msp->base); ++ kfree(msp); + +- return ((reg_data >> (5 * mp->port_num)) & 0x1f); ++ return 0; + } + +-/* +- * ethernet_phy_set - Set the ethernet port PHY address. +- * +- * DESCRIPTION: +- * This routine sets the given ethernet port PHY address. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * int phy_addr PHY address. +- * +- * OUTPUT: +- * None. +- * +- * RETURN: +- * None. +- * +- */ +-static void ethernet_phy_set(struct mv643xx_private *mp, int phy_addr) ++static struct platform_driver mv643xx_eth_shared_driver = { ++ .probe = mv643xx_eth_shared_probe, ++ .remove = mv643xx_eth_shared_remove, ++ .driver = { ++ .name = MV643XX_ETH_SHARED_NAME, ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static void phy_addr_set(struct mv643xx_eth_private *mp, int phy_addr) + { +- u32 reg_data; + int addr_shift = 5 * mp->port_num; ++ u32 data; + +- reg_data = rdl(mp, PHY_ADDR_REG); +- reg_data &= ~(0x1f << addr_shift); +- reg_data |= (phy_addr & 0x1f) << addr_shift; +- wrl(mp, PHY_ADDR_REG, reg_data); ++ data = rdl(mp, PHY_ADDR); ++ data &= ~(0x1f << addr_shift); ++ data |= (phy_addr & 0x1f) << addr_shift; ++ wrl(mp, PHY_ADDR, data); + } + +-/* +- * ethernet_phy_reset - Reset Ethernet port PHY. +- * +- * DESCRIPTION: +- * This routine utilizes the SMI interface to reset the ethernet port PHY. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * +- * OUTPUT: +- * The PHY is reset. +- * +- * RETURN: +- * None. +- * +- */ +-static void ethernet_phy_reset(struct mv643xx_private *mp) ++static int phy_addr_get(struct mv643xx_eth_private *mp) + { +- unsigned int phy_reg_data; ++ unsigned int data; + +- /* Reset the PHY */ +- eth_port_read_smi_reg(mp, 0, &phy_reg_data); +- phy_reg_data |= 0x8000; /* Set bit 15 to reset the PHY */ +- eth_port_write_smi_reg(mp, 0, phy_reg_data); ++ data = rdl(mp, PHY_ADDR); + +- /* wait for PHY to come out of reset */ +- do { +- udelay(1); +- eth_port_read_smi_reg(mp, 0, &phy_reg_data); +- } while (phy_reg_data & 0x8000); ++ return (data >> (5 * mp->port_num)) & 0x1f; + } + +-static void mv643xx_eth_port_enable_tx(struct mv643xx_private *mp, +- unsigned int queues) ++static void set_params(struct mv643xx_eth_private *mp, ++ struct mv643xx_eth_platform_data *pd) + { +- wrl(mp, TRANSMIT_QUEUE_COMMAND_REG(mp->port_num), queues); +-} ++ struct net_device *dev = mp->dev; + +-static void mv643xx_eth_port_enable_rx(struct mv643xx_private *mp, +- unsigned int queues) +-{ +- wrl(mp, RECEIVE_QUEUE_COMMAND_REG(mp->port_num), queues); +-} ++ if (is_valid_ether_addr(pd->mac_addr)) ++ memcpy(dev->dev_addr, pd->mac_addr, 6); ++ else ++ uc_addr_get(mp, dev->dev_addr); + +-static unsigned int mv643xx_eth_port_disable_tx(struct mv643xx_private *mp) +-{ +- unsigned int port_num = mp->port_num; +- u32 queues; ++ if (pd->phy_addr == -1) { ++ mp->shared_smi = NULL; ++ mp->phy_addr = -1; ++ } else { ++ mp->shared_smi = mp->shared; ++ if (pd->shared_smi != NULL) ++ mp->shared_smi = platform_get_drvdata(pd->shared_smi); ++ ++ if (pd->force_phy_addr || pd->phy_addr) { ++ mp->phy_addr = pd->phy_addr & 0x3f; ++ phy_addr_set(mp, mp->phy_addr); ++ } else { ++ mp->phy_addr = phy_addr_get(mp); ++ } ++ } + +- /* Stop Tx port activity. Check port Tx activity. */ +- queues = rdl(mp, TRANSMIT_QUEUE_COMMAND_REG(port_num)) & 0xFF; +- if (queues) { +- /* Issue stop command for active queues only */ +- wrl(mp, TRANSMIT_QUEUE_COMMAND_REG(port_num), (queues << 8)); ++ mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE; ++ if (pd->rx_queue_size) ++ mp->default_rx_ring_size = pd->rx_queue_size; ++ mp->rx_desc_sram_addr = pd->rx_sram_addr; ++ mp->rx_desc_sram_size = pd->rx_sram_size; + +- /* Wait for all Tx activity to terminate. */ +- /* Check port cause register that all Tx queues are stopped */ +- while (rdl(mp, TRANSMIT_QUEUE_COMMAND_REG(port_num)) & 0xFF) +- udelay(PHY_WAIT_MICRO_SECONDS); ++ if (pd->rx_queue_mask) ++ mp->rxq_mask = pd->rx_queue_mask; ++ else ++ mp->rxq_mask = 0x01; ++ mp->rxq_primary = fls(mp->rxq_mask) - 1; + +- /* Wait for Tx FIFO to empty */ +- while (rdl(mp, PORT_STATUS_REG(port_num)) & +- ETH_PORT_TX_FIFO_EMPTY) +- udelay(PHY_WAIT_MICRO_SECONDS); +- } ++ mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE; ++ if (pd->tx_queue_size) ++ mp->default_tx_ring_size = pd->tx_queue_size; ++ mp->tx_desc_sram_addr = pd->tx_sram_addr; ++ mp->tx_desc_sram_size = pd->tx_sram_size; + +- return queues; ++ if (pd->tx_queue_mask) ++ mp->txq_mask = pd->tx_queue_mask; ++ else ++ mp->txq_mask = 0x01; ++ mp->txq_primary = fls(mp->txq_mask) - 1; + } + +-static unsigned int mv643xx_eth_port_disable_rx(struct mv643xx_private *mp) ++static int phy_detect(struct mv643xx_eth_private *mp) + { +- unsigned int port_num = mp->port_num; +- u32 queues; ++ unsigned int data; ++ unsigned int data2; + +- /* Stop Rx port activity. Check port Rx activity. */ +- queues = rdl(mp, RECEIVE_QUEUE_COMMAND_REG(port_num)) & 0xFF; +- if (queues) { +- /* Issue stop command for active queues only */ +- wrl(mp, RECEIVE_QUEUE_COMMAND_REG(port_num), (queues << 8)); ++ smi_reg_read(mp, mp->phy_addr, 0, &data); ++ smi_reg_write(mp, mp->phy_addr, 0, data ^ 0x1000); + +- /* Wait for all Rx activity to terminate. */ +- /* Check port cause register that all Rx queues are stopped */ +- while (rdl(mp, RECEIVE_QUEUE_COMMAND_REG(port_num)) & 0xFF) +- udelay(PHY_WAIT_MICRO_SECONDS); +- } ++ smi_reg_read(mp, mp->phy_addr, 0, &data2); ++ if (((data ^ data2) & 0x1000) == 0) ++ return -ENODEV; ++ ++ smi_reg_write(mp, mp->phy_addr, 0, data); + +- return queues; ++ return 0; + } + +-/* +- * eth_port_reset - Reset Ethernet port +- * +- * DESCRIPTION: +- * This routine resets the chip by aborting any SDMA engine activity and +- * clearing the MIB counters. The Receiver and the Transmit unit are in +- * idle state after this command is performed and the port is disabled. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * +- * OUTPUT: +- * Channel activity is halted. +- * +- * RETURN: +- * None. +- * +- */ +-static void eth_port_reset(struct mv643xx_private *mp) ++static int phy_init(struct mv643xx_eth_private *mp, ++ struct mv643xx_eth_platform_data *pd) + { +- unsigned int port_num = mp->port_num; +- unsigned int reg_data; +- +- mv643xx_eth_port_disable_tx(mp); +- mv643xx_eth_port_disable_rx(mp); +- +- /* Clear all MIB counters */ +- eth_clear_mib_counters(mp); ++ struct ethtool_cmd cmd; ++ int err; + +- /* Reset the Enable bit in the Configuration Register */ +- reg_data = rdl(mp, PORT_SERIAL_CONTROL_REG(port_num)); +- reg_data &= ~(SERIAL_PORT_ENABLE | +- DO_NOT_FORCE_LINK_FAIL | +- FORCE_LINK_PASS); +- wrl(mp, PORT_SERIAL_CONTROL_REG(port_num), reg_data); +-} ++ err = phy_detect(mp); ++ if (err) { ++ dev_printk(KERN_INFO, &mp->dev->dev, ++ "no PHY detected at addr %d\n", mp->phy_addr); ++ return err; ++ } ++ phy_reset(mp); + ++ mp->mii.phy_id = mp->phy_addr; ++ mp->mii.phy_id_mask = 0x3f; ++ mp->mii.reg_num_mask = 0x1f; ++ mp->mii.dev = mp->dev; ++ mp->mii.mdio_read = mv643xx_eth_mdio_read; ++ mp->mii.mdio_write = mv643xx_eth_mdio_write; + +-/* +- * eth_port_read_smi_reg - Read PHY registers +- * +- * DESCRIPTION: +- * This routine utilize the SMI interface to interact with the PHY in +- * order to perform PHY register read. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * unsigned int phy_reg PHY register address offset. +- * unsigned int *value Register value buffer. +- * +- * OUTPUT: +- * Write the value of a specified PHY register into given buffer. +- * +- * RETURN: +- * false if the PHY is busy or read data is not in valid state. +- * true otherwise. +- * +- */ +-static void eth_port_read_smi_reg(struct mv643xx_private *mp, +- unsigned int phy_reg, unsigned int *value) +-{ +- void __iomem *smi_reg = mp->shared_smi->eth_base + SMI_REG; +- int phy_addr = ethernet_phy_get(mp); +- unsigned long flags; +- int i; ++ mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii); + +- /* the SMI register is a shared resource */ +- spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); ++ memset(&cmd, 0, sizeof(cmd)); + +- /* wait for the SMI register to become available */ +- for (i = 0; readl(smi_reg) & ETH_SMI_BUSY; i++) { +- if (i == PHY_WAIT_ITERATIONS) { +- printk("%s: PHY busy timeout\n", mp->dev->name); +- goto out; +- } +- udelay(PHY_WAIT_MICRO_SECONDS); ++ cmd.port = PORT_MII; ++ cmd.transceiver = XCVR_INTERNAL; ++ cmd.phy_address = mp->phy_addr; ++ if (pd->speed == 0) { ++ cmd.autoneg = AUTONEG_ENABLE; ++ cmd.speed = SPEED_100; ++ cmd.advertising = ADVERTISED_10baseT_Half | ++ ADVERTISED_10baseT_Full | ++ ADVERTISED_100baseT_Half | ++ ADVERTISED_100baseT_Full; ++ if (mp->mii.supports_gmii) ++ cmd.advertising |= ADVERTISED_1000baseT_Full; ++ } else { ++ cmd.autoneg = AUTONEG_DISABLE; ++ cmd.speed = pd->speed; ++ cmd.duplex = pd->duplex; + } + +- writel((phy_addr << 16) | (phy_reg << 21) | ETH_SMI_OPCODE_READ, +- smi_reg); +- +- /* now wait for the data to be valid */ +- for (i = 0; !(readl(smi_reg) & ETH_SMI_READ_VALID); i++) { +- if (i == PHY_WAIT_ITERATIONS) { +- printk("%s: PHY read timeout\n", mp->dev->name); +- goto out; +- } +- udelay(PHY_WAIT_MICRO_SECONDS); +- } ++ update_pscr(mp, cmd.speed, cmd.duplex); ++ mv643xx_eth_set_settings(mp->dev, &cmd); + +- *value = readl(smi_reg) & 0xffff; +-out: +- spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); ++ return 0; + } + +-/* +- * eth_port_write_smi_reg - Write to PHY registers +- * +- * DESCRIPTION: +- * This routine utilize the SMI interface to interact with the PHY in +- * order to perform writes to PHY registers. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port. +- * unsigned int phy_reg PHY register address offset. +- * unsigned int value Register value. +- * +- * OUTPUT: +- * Write the given value to the specified PHY register. +- * +- * RETURN: +- * false if the PHY is busy. +- * true otherwise. +- * +- */ +-static void eth_port_write_smi_reg(struct mv643xx_private *mp, +- unsigned int phy_reg, unsigned int value) ++static int mv643xx_eth_probe(struct platform_device *pdev) + { +- void __iomem *smi_reg = mp->shared_smi->eth_base + SMI_REG; +- int phy_addr = ethernet_phy_get(mp); +- unsigned long flags; +- int i; ++ struct mv643xx_eth_platform_data *pd; ++ struct mv643xx_eth_private *mp; ++ struct net_device *dev; ++ struct resource *res; ++ DECLARE_MAC_BUF(mac); ++ int err; + +- /* the SMI register is a shared resource */ +- spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); ++ pd = pdev->dev.platform_data; ++ if (pd == NULL) { ++ dev_printk(KERN_ERR, &pdev->dev, ++ "no mv643xx_eth_platform_data\n"); ++ return -ENODEV; ++ } + +- /* wait for the SMI register to become available */ +- for (i = 0; readl(smi_reg) & ETH_SMI_BUSY; i++) { +- if (i == PHY_WAIT_ITERATIONS) { +- printk("%s: PHY busy timeout\n", mp->dev->name); +- goto out; +- } +- udelay(PHY_WAIT_MICRO_SECONDS); ++ if (pd->shared == NULL) { ++ dev_printk(KERN_ERR, &pdev->dev, ++ "no mv643xx_eth_platform_data->shared\n"); ++ return -ENODEV; + } + +- writel((phy_addr << 16) | (phy_reg << 21) | +- ETH_SMI_OPCODE_WRITE | (value & 0xffff), smi_reg); +-out: +- spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); +-} ++ dev = alloc_etherdev(sizeof(struct mv643xx_eth_private)); ++ if (!dev) ++ return -ENOMEM; + +-/* +- * Wrappers for MII support library. +- */ +-static int mv643xx_mdio_read(struct net_device *dev, int phy_id, int location) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- int val; ++ mp = netdev_priv(dev); ++ platform_set_drvdata(pdev, mp); + +- eth_port_read_smi_reg(mp, location, &val); +- return val; +-} ++ mp->shared = platform_get_drvdata(pd->shared); ++ mp->port_num = pd->port_number; + +-static void mv643xx_mdio_write(struct net_device *dev, int phy_id, int location, int val) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); +- eth_port_write_smi_reg(mp, location, val); +-} ++ mp->dev = dev; ++#ifdef MV643XX_ETH_NAPI ++ netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 64); ++#endif + +-/* +- * eth_port_receive - Get received information from Rx ring. +- * +- * DESCRIPTION: +- * This routine returns the received data to the caller. There is no +- * data copying during routine operation. All information is returned +- * using pointer to packet information struct passed from the caller. +- * If the routine exhausts Rx ring resources then the resource error flag +- * is set. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port Control srtuct. +- * struct pkt_info *p_pkt_info User packet buffer. +- * +- * OUTPUT: +- * Rx ring current and used indexes are updated. +- * +- * RETURN: +- * ETH_ERROR in case the routine can not access Rx desc ring. +- * ETH_QUEUE_FULL if Rx ring resources are exhausted. +- * ETH_END_OF_JOB if there is no received data. +- * ETH_OK otherwise. +- */ +-static ETH_FUNC_RET_STATUS eth_port_receive(struct mv643xx_private *mp, +- struct pkt_info *p_pkt_info) +-{ +- int rx_next_curr_desc, rx_curr_desc, rx_used_desc; +- volatile struct eth_rx_desc *p_rx_desc; +- unsigned int command_status; +- unsigned long flags; ++ set_params(mp, pd); + +- /* Do not process Rx ring in case of Rx ring resource error */ +- if (mp->rx_resource_err) +- return ETH_QUEUE_FULL; ++ spin_lock_init(&mp->lock); + +- spin_lock_irqsave(&mp->lock, flags); ++ mib_counters_clear(mp); ++ INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); + +- /* Get the Rx Desc ring 'curr and 'used' indexes */ +- rx_curr_desc = mp->rx_curr_desc_q; +- rx_used_desc = mp->rx_used_desc_q; +- +- p_rx_desc = &mp->p_rx_desc_area[rx_curr_desc]; +- +- /* The following parameters are used to save readings from memory */ +- command_status = p_rx_desc->cmd_sts; +- rmb(); ++ if (mp->phy_addr != -1) { ++ err = phy_init(mp, pd); ++ if (err) ++ goto out; + +- /* Nothing to receive... */ +- if (command_status & (ETH_BUFFER_OWNED_BY_DMA)) { +- spin_unlock_irqrestore(&mp->lock, flags); +- return ETH_END_OF_JOB; ++ SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops); ++ } else { ++ SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops_phyless); + } + +- p_pkt_info->byte_cnt = (p_rx_desc->byte_cnt) - RX_BUF_OFFSET; +- p_pkt_info->cmd_sts = command_status; +- p_pkt_info->buf_ptr = (p_rx_desc->buf_ptr) + RX_BUF_OFFSET; +- p_pkt_info->return_info = mp->rx_skb[rx_curr_desc]; +- p_pkt_info->l4i_chk = p_rx_desc->buf_size; +- +- /* +- * Clean the return info field to indicate that the +- * packet has been moved to the upper layers +- */ +- mp->rx_skb[rx_curr_desc] = NULL; + +- /* Update current index in data structure */ +- rx_next_curr_desc = (rx_curr_desc + 1) % mp->rx_ring_size; +- mp->rx_curr_desc_q = rx_next_curr_desc; ++ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); ++ BUG_ON(!res); ++ dev->irq = res->start; + +- /* Rx descriptors exhausted. Set the Rx ring resource error flag */ +- if (rx_next_curr_desc == rx_used_desc) +- mp->rx_resource_err = 1; ++ dev->hard_start_xmit = mv643xx_eth_xmit; ++ dev->open = mv643xx_eth_open; ++ dev->stop = mv643xx_eth_stop; ++ dev->set_multicast_list = mv643xx_eth_set_rx_mode; ++ dev->set_mac_address = mv643xx_eth_set_mac_address; ++ dev->do_ioctl = mv643xx_eth_ioctl; ++ dev->change_mtu = mv643xx_eth_change_mtu; ++ dev->tx_timeout = mv643xx_eth_tx_timeout; ++#ifdef CONFIG_NET_POLL_CONTROLLER ++ dev->poll_controller = mv643xx_eth_netpoll; ++#endif ++ dev->watchdog_timeo = 2 * HZ; ++ dev->base_addr = 0; + +- spin_unlock_irqrestore(&mp->lock, flags); ++#ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX ++ /* ++ * Zero copy can only work if we use Discovery II memory. Else, we will ++ * have to map the buffers to ISA memory which is only 16 MB ++ */ ++ dev->features = NETIF_F_SG | NETIF_F_IP_CSUM; ++#endif + +- return ETH_OK; +-} ++ SET_NETDEV_DEV(dev, &pdev->dev); + +-/* +- * eth_rx_return_buff - Returns a Rx buffer back to the Rx ring. +- * +- * DESCRIPTION: +- * This routine returns a Rx buffer back to the Rx ring. It retrieves the +- * next 'used' descriptor and attached the returned buffer to it. +- * In case the Rx ring was in "resource error" condition, where there are +- * no available Rx resources, the function resets the resource error flag. +- * +- * INPUT: +- * struct mv643xx_private *mp Ethernet Port Control srtuct. +- * struct pkt_info *p_pkt_info Information on returned buffer. +- * +- * OUTPUT: +- * New available Rx resource in Rx descriptor ring. +- * +- * RETURN: +- * ETH_ERROR in case the routine can not access Rx desc ring. +- * ETH_OK otherwise. +- */ +-static ETH_FUNC_RET_STATUS eth_rx_return_buff(struct mv643xx_private *mp, +- struct pkt_info *p_pkt_info) +-{ +- int used_rx_desc; /* Where to return Rx resource */ +- volatile struct eth_rx_desc *p_used_rx_desc; +- unsigned long flags; ++ if (mp->shared->win_protect) ++ wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); + +- spin_lock_irqsave(&mp->lock, flags); ++ err = register_netdev(dev); ++ if (err) ++ goto out; + +- /* Get 'used' Rx descriptor */ +- used_rx_desc = mp->rx_used_desc_q; +- p_used_rx_desc = &mp->p_rx_desc_area[used_rx_desc]; ++ dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n", ++ mp->port_num, print_mac(mac, dev->dev_addr)); + +- p_used_rx_desc->buf_ptr = p_pkt_info->buf_ptr; +- p_used_rx_desc->buf_size = p_pkt_info->byte_cnt; +- mp->rx_skb[used_rx_desc] = p_pkt_info->return_info; ++ if (dev->features & NETIF_F_SG) ++ dev_printk(KERN_NOTICE, &dev->dev, "scatter/gather enabled\n"); + +- /* Flush the write pipe */ ++ if (dev->features & NETIF_F_IP_CSUM) ++ dev_printk(KERN_NOTICE, &dev->dev, "tx checksum offload\n"); + +- /* Return the descriptor to DMA ownership */ +- wmb(); +- p_used_rx_desc->cmd_sts = +- ETH_BUFFER_OWNED_BY_DMA | ETH_RX_ENABLE_INTERRUPT; +- wmb(); ++#ifdef MV643XX_ETH_NAPI ++ dev_printk(KERN_NOTICE, &dev->dev, "napi enabled\n"); ++#endif + +- /* Move the used descriptor pointer to the next descriptor */ +- mp->rx_used_desc_q = (used_rx_desc + 1) % mp->rx_ring_size; ++ if (mp->tx_desc_sram_size > 0) ++ dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n"); + +- /* Any Rx return cancels the Rx resource error status */ +- mp->rx_resource_err = 0; ++ return 0; + +- spin_unlock_irqrestore(&mp->lock, flags); ++out: ++ free_netdev(dev); + +- return ETH_OK; ++ return err; + } + +-/************* Begin ethtool support *************************/ +- +-struct mv643xx_stats { +- char stat_string[ETH_GSTRING_LEN]; +- int sizeof_stat; +- int stat_offset; +-}; +- +-#define MV643XX_STAT(m) FIELD_SIZEOF(struct mv643xx_private, m), \ +- offsetof(struct mv643xx_private, m) +- +-static const struct mv643xx_stats mv643xx_gstrings_stats[] = { +- { "rx_packets", MV643XX_STAT(stats.rx_packets) }, +- { "tx_packets", MV643XX_STAT(stats.tx_packets) }, +- { "rx_bytes", MV643XX_STAT(stats.rx_bytes) }, +- { "tx_bytes", MV643XX_STAT(stats.tx_bytes) }, +- { "rx_errors", MV643XX_STAT(stats.rx_errors) }, +- { "tx_errors", MV643XX_STAT(stats.tx_errors) }, +- { "rx_dropped", MV643XX_STAT(stats.rx_dropped) }, +- { "tx_dropped", MV643XX_STAT(stats.tx_dropped) }, +- { "good_octets_received", MV643XX_STAT(mib_counters.good_octets_received) }, +- { "bad_octets_received", MV643XX_STAT(mib_counters.bad_octets_received) }, +- { "internal_mac_transmit_err", MV643XX_STAT(mib_counters.internal_mac_transmit_err) }, +- { "good_frames_received", MV643XX_STAT(mib_counters.good_frames_received) }, +- { "bad_frames_received", MV643XX_STAT(mib_counters.bad_frames_received) }, +- { "broadcast_frames_received", MV643XX_STAT(mib_counters.broadcast_frames_received) }, +- { "multicast_frames_received", MV643XX_STAT(mib_counters.multicast_frames_received) }, +- { "frames_64_octets", MV643XX_STAT(mib_counters.frames_64_octets) }, +- { "frames_65_to_127_octets", MV643XX_STAT(mib_counters.frames_65_to_127_octets) }, +- { "frames_128_to_255_octets", MV643XX_STAT(mib_counters.frames_128_to_255_octets) }, +- { "frames_256_to_511_octets", MV643XX_STAT(mib_counters.frames_256_to_511_octets) }, +- { "frames_512_to_1023_octets", MV643XX_STAT(mib_counters.frames_512_to_1023_octets) }, +- { "frames_1024_to_max_octets", MV643XX_STAT(mib_counters.frames_1024_to_max_octets) }, +- { "good_octets_sent", MV643XX_STAT(mib_counters.good_octets_sent) }, +- { "good_frames_sent", MV643XX_STAT(mib_counters.good_frames_sent) }, +- { "excessive_collision", MV643XX_STAT(mib_counters.excessive_collision) }, +- { "multicast_frames_sent", MV643XX_STAT(mib_counters.multicast_frames_sent) }, +- { "broadcast_frames_sent", MV643XX_STAT(mib_counters.broadcast_frames_sent) }, +- { "unrec_mac_control_received", MV643XX_STAT(mib_counters.unrec_mac_control_received) }, +- { "fc_sent", MV643XX_STAT(mib_counters.fc_sent) }, +- { "good_fc_received", MV643XX_STAT(mib_counters.good_fc_received) }, +- { "bad_fc_received", MV643XX_STAT(mib_counters.bad_fc_received) }, +- { "undersize_received", MV643XX_STAT(mib_counters.undersize_received) }, +- { "fragments_received", MV643XX_STAT(mib_counters.fragments_received) }, +- { "oversize_received", MV643XX_STAT(mib_counters.oversize_received) }, +- { "jabber_received", MV643XX_STAT(mib_counters.jabber_received) }, +- { "mac_receive_error", MV643XX_STAT(mib_counters.mac_receive_error) }, +- { "bad_crc_event", MV643XX_STAT(mib_counters.bad_crc_event) }, +- { "collision", MV643XX_STAT(mib_counters.collision) }, +- { "late_collision", MV643XX_STAT(mib_counters.late_collision) }, +-}; ++static int mv643xx_eth_remove(struct platform_device *pdev) ++{ ++ struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); + +-#define MV643XX_STATS_LEN ARRAY_SIZE(mv643xx_gstrings_stats) ++ unregister_netdev(mp->dev); ++ flush_scheduled_work(); ++ free_netdev(mp->dev); + +-static void mv643xx_get_drvinfo(struct net_device *netdev, +- struct ethtool_drvinfo *drvinfo) +-{ +- strncpy(drvinfo->driver, mv643xx_driver_name, 32); +- strncpy(drvinfo->version, mv643xx_driver_version, 32); +- strncpy(drvinfo->fw_version, "N/A", 32); +- strncpy(drvinfo->bus_info, "mv643xx", 32); +- drvinfo->n_stats = MV643XX_STATS_LEN; +-} ++ platform_set_drvdata(pdev, NULL); + +-static int mv643xx_get_sset_count(struct net_device *netdev, int sset) +-{ +- switch (sset) { +- case ETH_SS_STATS: +- return MV643XX_STATS_LEN; +- default: +- return -EOPNOTSUPP; +- } ++ return 0; + } + +-static void mv643xx_get_ethtool_stats(struct net_device *netdev, +- struct ethtool_stats *stats, uint64_t *data) ++static void mv643xx_eth_shutdown(struct platform_device *pdev) + { +- struct mv643xx_private *mp = netdev->priv; +- int i; ++ struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); + +- eth_update_mib_counters(mp); ++ /* Mask all interrupts on ethernet port */ ++ wrl(mp, INT_MASK(mp->port_num), 0); ++ rdl(mp, INT_MASK(mp->port_num)); + +- for (i = 0; i < MV643XX_STATS_LEN; i++) { +- char *p = (char *)mp+mv643xx_gstrings_stats[i].stat_offset; +- data[i] = (mv643xx_gstrings_stats[i].sizeof_stat == +- sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p; +- } ++ if (netif_running(mp->dev)) ++ port_reset(mp); + } + +-static void mv643xx_get_strings(struct net_device *netdev, uint32_t stringset, +- uint8_t *data) +-{ +- int i; +- +- switch(stringset) { +- case ETH_SS_STATS: +- for (i=0; i < MV643XX_STATS_LEN; i++) { +- memcpy(data + i * ETH_GSTRING_LEN, +- mv643xx_gstrings_stats[i].stat_string, +- ETH_GSTRING_LEN); +- } +- break; +- } +-} ++static struct platform_driver mv643xx_eth_driver = { ++ .probe = mv643xx_eth_probe, ++ .remove = mv643xx_eth_remove, ++ .shutdown = mv643xx_eth_shutdown, ++ .driver = { ++ .name = MV643XX_ETH_NAME, ++ .owner = THIS_MODULE, ++ }, ++}; + +-static u32 mv643xx_eth_get_link(struct net_device *dev) ++static int __init mv643xx_eth_init_module(void) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- +- return mii_link_ok(&mp->mii); +-} ++ int rc; + +-static int mv643xx_eth_nway_restart(struct net_device *dev) +-{ +- struct mv643xx_private *mp = netdev_priv(dev); ++ rc = platform_driver_register(&mv643xx_eth_shared_driver); ++ if (!rc) { ++ rc = platform_driver_register(&mv643xx_eth_driver); ++ if (rc) ++ platform_driver_unregister(&mv643xx_eth_shared_driver); ++ } + +- return mii_nway_restart(&mp->mii); ++ return rc; + } ++module_init(mv643xx_eth_init_module); + +-static int mv643xx_eth_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) ++static void __exit mv643xx_eth_cleanup_module(void) + { +- struct mv643xx_private *mp = netdev_priv(dev); +- +- return generic_mii_ioctl(&mp->mii, if_mii(ifr), cmd, NULL); ++ platform_driver_unregister(&mv643xx_eth_driver); ++ platform_driver_unregister(&mv643xx_eth_shared_driver); + } ++module_exit(mv643xx_eth_cleanup_module); + +-static const struct ethtool_ops mv643xx_ethtool_ops = { +- .get_settings = mv643xx_get_settings, +- .set_settings = mv643xx_set_settings, +- .get_drvinfo = mv643xx_get_drvinfo, +- .get_link = mv643xx_eth_get_link, +- .set_sg = ethtool_op_set_sg, +- .get_sset_count = mv643xx_get_sset_count, +- .get_ethtool_stats = mv643xx_get_ethtool_stats, +- .get_strings = mv643xx_get_strings, +- .nway_reset = mv643xx_eth_nway_restart, +-}; +- +-/************* End ethtool support *************************/ ++MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " ++ "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); ++MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); ++MODULE_ALIAS("platform:" MV643XX_ETH_NAME); +--- a/include/linux/mv643xx_eth.h ++++ b/include/linux/mv643xx_eth.h +@@ -17,30 +17,59 @@ + + struct mv643xx_eth_shared_platform_data { + struct mbus_dram_target_info *dram; +- unsigned int t_clk; ++ unsigned int t_clk; + }; + + struct mv643xx_eth_platform_data { ++ /* ++ * Pointer back to our parent instance, and our port number. ++ */ + struct platform_device *shared; +- int port_number; ++ int port_number; + ++ /* ++ * Whether a PHY is present, and if yes, at which address. ++ */ + struct platform_device *shared_smi; ++ int force_phy_addr; ++ int phy_addr; + +- u16 force_phy_addr; /* force override if phy_addr == 0 */ +- u16 phy_addr; +- +- /* If speed is 0, then speed and duplex are autonegotiated. */ +- int speed; /* 0, SPEED_10, SPEED_100, SPEED_1000 */ +- int duplex; /* DUPLEX_HALF or DUPLEX_FULL */ +- +- /* non-zero values of the following fields override defaults */ +- u32 tx_queue_size; +- u32 rx_queue_size; +- u32 tx_sram_addr; +- u32 tx_sram_size; +- u32 rx_sram_addr; +- u32 rx_sram_size; +- u8 mac_addr[6]; /* mac address if non-zero*/ ++ /* ++ * Use this MAC address if it is valid, overriding the ++ * address that is already in the hardware. ++ */ ++ u8 mac_addr[6]; ++ ++ /* ++ * If speed is 0, autonegotiation is enabled. ++ * Valid values for speed: 0, SPEED_10, SPEED_100, SPEED_1000. ++ * Valid values for duplex: DUPLEX_HALF, DUPLEX_FULL. ++ */ ++ int speed; ++ int duplex; ++ ++ /* ++ * Which RX/TX queues to use. ++ */ ++ int rx_queue_mask; ++ int tx_queue_mask; ++ ++ /* ++ * Override default RX/TX queue sizes if nonzero. ++ */ ++ int rx_queue_size; ++ int tx_queue_size; ++ ++ /* ++ * Use on-chip SRAM for RX/TX descriptors if size is nonzero ++ * and sufficient to contain all descriptors for the requested ++ * ring sizes. ++ */ ++ unsigned long rx_sram_addr; ++ int rx_sram_size; ++ unsigned long tx_sram_addr; ++ int tx_sram_size; + }; + +-#endif /* __LINUX_MV643XX_ETH_H */ ++ ++#endif +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -2689,12 +2689,10 @@ + S: Maintained + + MARVELL MV643XX ETHERNET DRIVER +-P: Dale Farnsworth +-M: dale@farnsworth.org +-P: Manish Lachwani +-M: mlachwani@mvista.com ++P: Lennert Buytenhek ++M: buytenh@marvell.com + L: netdev@vger.kernel.org +-S: Odd Fixes for 2.4; Maintained for 2.6. ++S: Supported + + MATROX FRAMEBUFFER DRIVER + P: Petr Vandrovec |