Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  tproxy: fixe a possible read from an invalid location in the socket match
  zd1211rw: use unaligned safe memcmp() in-place of compare_ether_addr()
  mac80211: use unaligned safe memcmp() in-place of compare_ether_addr()
  ipw2200: fix netif_*_queue() removal regression
  iwlwifi: clean key table in iwl_clear_stations_table function
  tcp: tcp_vegas ssthresh bug fix
  can: omit received RTR frames for single ID filter lists
  ATM: CVE-2008-5079: duplicate listen() on socket corrupts the vcc table
  netx-eth: initialize per device spinlock
  tcp: make urg+gso work for real this time
  enc28j60: Fix sporadic packet loss (corrected again)
  hysdn: fix writing outside the field on 64 bits
  b1isa: fix b1isa_exit() to really remove registered capi controllers
  can: Fix CAN_(EFF|RTR)_FLAG handling in can_filter
  Phonet: do not dump addresses from other namespaces
  netlabel: Fix a potential NULL pointer dereference
  bnx2: Add workaround to handle missed MSI.
  xfrm: Fix kernel panic when flush and dump SPD entries

1 files changed, 32 insertions, 3 deletions

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index d07e3f1..a1a3d0e 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3144,6 +3144,28 @@ bnx2_has_work(struct bnx2_napi *bnapi)
 	return 0;
 }
 
+static void
+bnx2_chk_missed_msi(struct bnx2 *bp)
+{
+	struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
+	u32 msi_ctrl;
+
+	if (bnx2_has_work(bnapi)) {
+		msi_ctrl = REG_RD(bp, BNX2_PCICFG_MSI_CONTROL);
+		if (!(msi_ctrl & BNX2_PCICFG_MSI_CONTROL_ENABLE))
+			return;
+
+		if (bnapi->last_status_idx == bp->idle_chk_status_idx) {
+			REG_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl &
+			       ~BNX2_PCICFG_MSI_CONTROL_ENABLE);
+			REG_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl);
+			bnx2_msi(bp->irq_tbl[0].vector, bnapi);
+		}
+	}
+
+	bp->idle_chk_status_idx = bnapi->last_status_idx;
+}
+
 static void bnx2_poll_link(struct bnx2 *bp, struct bnx2_napi *bnapi)
 {
 	struct status_block *sblk = bnapi->status_blk.msi;
@@ -3218,14 +3240,15 @@ static int bnx2_poll(struct napi_struct *napi, int budget)
 
 		work_done = bnx2_poll_work(bp, bnapi, work_done, budget);
 
-		if (unlikely(work_done >= budget))
-			break;
-
 		/* bnapi->last_status_idx is used below to tell the hw how
 		 * much work has been processed, so we must read it before
 		 * checking for more work.
 		 */
 		bnapi->last_status_idx = sblk->status_idx;
+
+		if (unlikely(work_done >= budget))
+			break;
+
 		rmb();
 		if (likely(!bnx2_has_work(bnapi))) {
 			netif_rx_complete(bp->dev, napi);
@@ -4570,6 +4593,8 @@ bnx2_init_chip(struct bnx2 *bp)
 	for (i = 0; i < BNX2_MAX_MSIX_VEC; i++)
 		bp->bnx2_napi[i].last_status_idx = 0;
 
+	bp->idle_chk_status_idx = 0xffff;
+
 	bp->rx_mode = BNX2_EMAC_RX_MODE_SORT_MODE;
 
 	/* Set up how to generate a link change interrupt. */
@@ -5718,6 +5743,10 @@ bnx2_timer(unsigned long data)
 	if (atomic_read(&bp->intr_sem) != 0)
 		goto bnx2_restart_timer;
 
+	if ((bp->flags & (BNX2_FLAG_USING_MSI | BNX2_FLAG_ONE_SHOT_MSI)) ==
+	     BNX2_FLAG_USING_MSI)
+		bnx2_chk_missed_msi(bp);
+
 	bnx2_send_heart_beat(bp);
 
 	bp->stats_blk->stat_FwRxDrop =