---

yaml
---
r: 119749
b: refs/heads/master
c: efba018
h: refs/heads/master
i:
  119747: 4077a79
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d5654efd3ff1cd0baa935a0c9a5d89862f07d009
+refs/heads/master: efba01803c8570bab11d0d6188a630231d0ddccf

trunk/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 =

trunk/drivers/net/bnx2.h

@@ -378,6 +378,9 @@ struct l2_fhdr {
  *  pci_config_l definition
  *  offset: 0000
  */
+#define BNX2_PCICFG_MSI_CONTROL				0x00000058
+#define BNX2_PCICFG_MSI_CONTROL_ENABLE			 (1L<<16)
+
 #define BNX2_PCICFG_MISC_CONFIG				0x00000068
 #define BNX2_PCICFG_MISC_CONFIG_TARGET_BYTE_SWAP	 (1L<<2)
 #define BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP	 (1L<<3)
@@ -6863,6 +6866,9 @@ struct bnx2 {
 
 	u8			num_tx_rings;
 	u8			num_rx_rings;
+
+	u32			idle_chk_status_idx;
+
 };
 
 #define REG_RD(bp, offset)					\