diff options
author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-02-08 19:31:43 +0000 |
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committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-02-08 19:31:43 +0000 |
commit | 88bf9173656f4f76b5c7e22c88f6eedb7d87f706 (patch) | |
tree | 62dc8293bafaf24baa6451bd6c4dd796c737630e /package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch | |
parent | 1ae49a4eef49e6e0939b60b48268ca8f798184b2 (diff) |
mac80211: update to wireless-testing 2010-02-07
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25425 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch')
-rw-r--r-- | package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch b/package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch deleted file mode 100644 index 0ce3c00c2..000000000 --- a/package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch +++ /dev/null @@ -1,200 +0,0 @@ ---- a/drivers/net/wireless/ath/ath9k/main.c -+++ b/drivers/net/wireless/ath/ath9k/main.c -@@ -1291,6 +1291,11 @@ static void ath9k_stop(struct ieee80211_ - } else - sc->rx.rxlink = NULL; - -+ if (sc->rx.frag) { -+ dev_kfree_skb_any(sc->rx.frag); -+ sc->rx.frag = NULL; -+ } -+ - /* disable HAL and put h/w to sleep */ - ath9k_hw_disable(ah); - ath9k_hw_configpcipowersave(ah, 1, 1); ---- a/drivers/net/wireless/ath/ath9k/recv.c -+++ b/drivers/net/wireless/ath/ath9k/recv.c -@@ -209,11 +209,6 @@ static int ath_rx_edma_init(struct ath_s - int error = 0, i; - u32 size; - -- -- common->rx_bufsize = roundup(IEEE80211_MAX_MPDU_LEN + -- ah->caps.rx_status_len, -- min(common->cachelsz, (u16)64)); -- - ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize - - ah->caps.rx_status_len); - -@@ -300,12 +295,12 @@ int ath_rx_init(struct ath_softc *sc, in - sc->sc_flags &= ~SC_OP_RXFLUSH; - spin_lock_init(&sc->rx.rxbuflock); - -+ common->rx_bufsize = IEEE80211_MAX_MPDU_LEN / 2 + -+ sc->sc_ah->caps.rx_status_len; -+ - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { - return ath_rx_edma_init(sc, nbufs); - } else { -- common->rx_bufsize = roundup(IEEE80211_MAX_MPDU_LEN, -- min(common->cachelsz, (u16)64)); -- - ath_dbg(common, ATH_DBG_CONFIG, "cachelsz %u rxbufsize %u\n", - common->cachelsz, common->rx_bufsize); - -@@ -815,15 +810,9 @@ static bool ath9k_rx_accept(struct ath_c - if (rx_stats->rs_datalen > (common->rx_bufsize - rx_status_len)) - return false; - -- /* -- * rs_more indicates chained descriptors which can be used -- * to link buffers together for a sort of scatter-gather -- * operation. -- * reject the frame, we don't support scatter-gather yet and -- * the frame is probably corrupt anyway -- */ -+ /* Only use error bits from the last fragment */ - if (rx_stats->rs_more) -- return false; -+ return true; - - /* - * The rx_stats->rs_status will not be set until the end of the -@@ -981,6 +970,10 @@ static int ath9k_rx_skb_preprocess(struc - if (!ath9k_rx_accept(common, hdr, rx_status, rx_stats, decrypt_error)) - return -EINVAL; - -+ /* Only use status info from the last fragment */ -+ if (rx_stats->rs_more) -+ return 0; -+ - ath9k_process_rssi(common, hw, hdr, rx_stats); - - if (ath9k_process_rate(common, hw, rx_stats, rx_status)) -@@ -1582,7 +1575,7 @@ div_comb_done: - int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) - { - struct ath_buf *bf; -- struct sk_buff *skb = NULL, *requeue_skb; -+ struct sk_buff *skb = NULL, *requeue_skb, *hdr_skb; - struct ieee80211_rx_status *rxs; - struct ath_hw *ah = sc->sc_ah; - struct ath_common *common = ath9k_hw_common(ah); -@@ -1633,8 +1626,17 @@ int ath_rx_tasklet(struct ath_softc *sc, - if (!skb) - continue; - -- hdr = (struct ieee80211_hdr *) (skb->data + rx_status_len); -- rxs = IEEE80211_SKB_RXCB(skb); -+ /* -+ * Take frame header from the first fragment and RX status from -+ * the last one. -+ */ -+ if (sc->rx.frag) -+ hdr_skb = sc->rx.frag; -+ else -+ hdr_skb = skb; -+ -+ hdr = (struct ieee80211_hdr *) (hdr_skb->data + rx_status_len); -+ rxs = IEEE80211_SKB_RXCB(hdr_skb); - - ath_debug_stat_rx(sc, &rs); - -@@ -1643,12 +1645,12 @@ int ath_rx_tasklet(struct ath_softc *sc, - * chain it back at the queue without processing it. - */ - if (flush) -- goto requeue; -+ goto requeue_drop_frag; - - retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs, - rxs, &decrypt_error); - if (retval) -- goto requeue; -+ goto requeue_drop_frag; - - rxs->mactime = (tsf & ~0xffffffffULL) | rs.rs_tstamp; - if (rs.rs_tstamp > tsf_lower && -@@ -1668,7 +1670,7 @@ int ath_rx_tasklet(struct ath_softc *sc, - * skb and put it at the tail of the sc->rx.rxbuf list for - * processing. */ - if (!requeue_skb) -- goto requeue; -+ goto requeue_drop_frag; - - /* Unmap the frame */ - dma_unmap_single(sc->dev, bf->bf_buf_addr, -@@ -1679,8 +1681,9 @@ int ath_rx_tasklet(struct ath_softc *sc, - if (ah->caps.rx_status_len) - skb_pull(skb, ah->caps.rx_status_len); - -- ath9k_rx_skb_postprocess(common, skb, &rs, -- rxs, decrypt_error); -+ if (!rs.rs_more) -+ ath9k_rx_skb_postprocess(common, hdr_skb, &rs, -+ rxs, decrypt_error); - - /* We will now give hardware our shiny new allocated skb */ - bf->bf_mpdu = requeue_skb; -@@ -1697,6 +1700,38 @@ int ath_rx_tasklet(struct ath_softc *sc, - break; - } - -+ if (rs.rs_more) { -+ /* -+ * rs_more indicates chained descriptors which can be -+ * used to link buffers together for a sort of -+ * scatter-gather operation. -+ */ -+ if (sc->rx.frag) { -+ /* too many fragments - cannot handle frame */ -+ dev_kfree_skb_any(sc->rx.frag); -+ dev_kfree_skb_any(skb); -+ skb = NULL; -+ } -+ sc->rx.frag = skb; -+ goto requeue; -+ } -+ -+ if (sc->rx.frag) { -+ int space = skb->len - skb_tailroom(hdr_skb); -+ -+ sc->rx.frag = NULL; -+ -+ if (pskb_expand_head(hdr_skb, 0, space, GFP_ATOMIC) < 0) { -+ dev_kfree_skb(skb); -+ goto requeue_drop_frag; -+ } -+ -+ skb_copy_from_linear_data(skb, skb_put(hdr_skb, skb->len), -+ skb->len); -+ dev_kfree_skb_any(skb); -+ skb = hdr_skb; -+ } -+ - /* - * change the default rx antenna if rx diversity chooses the - * other antenna 3 times in a row. -@@ -1722,6 +1757,11 @@ int ath_rx_tasklet(struct ath_softc *sc, - - ieee80211_rx(hw, skb); - -+requeue_drop_frag: -+ if (sc->rx.frag) { -+ dev_kfree_skb_any(sc->rx.frag); -+ sc->rx.frag = NULL; -+ } - requeue: - if (edma) { - list_add_tail(&bf->list, &sc->rx.rxbuf); ---- a/drivers/net/wireless/ath/ath9k/ath9k.h -+++ b/drivers/net/wireless/ath/ath9k/ath9k.h -@@ -311,6 +311,8 @@ struct ath_rx { - struct ath_descdma rxdma; - struct ath_buf *rx_bufptr; - struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX]; -+ -+ struct sk_buff *frag; - }; - - int ath_startrecv(struct ath_softc *sc); |