Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

1 files changed, 127 insertions, 90 deletions

diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 21764bfc048..71f81c79d63 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -57,8 +57,8 @@
 #include "bnx2x.h"
 #include "bnx2x_init.h"
 
-#define DRV_MODULE_VERSION	"1.45.24"
-#define DRV_MODULE_RELDATE	"2009/01/14"
+#define DRV_MODULE_VERSION	"1.45.26"
+#define DRV_MODULE_RELDATE	"2009/01/26"
 #define BNX2X_BC_VER		0x040200
 
 /* Time in jiffies before concluding the transmitter is hung */
@@ -740,8 +740,15 @@ static inline int bnx2x_has_tx_work(struct bnx2x_fastpath *fp)
 	/* Tell compiler that status block fields can change */
 	barrier();
 	tx_cons_sb = le16_to_cpu(*fp->tx_cons_sb);
-	return ((fp->tx_pkt_prod != tx_cons_sb) ||
-		(fp->tx_pkt_prod != fp->tx_pkt_cons));
+	return (fp->tx_pkt_cons != tx_cons_sb);
+}
+
+static inline int bnx2x_has_tx_work_unload(struct bnx2x_fastpath *fp)
+{
+	/* Tell compiler that consumer and producer can change */
+	barrier();
+	return (fp->tx_pkt_prod != fp->tx_pkt_cons);
+
 }
 
 /* free skb in the packet ring at pos idx
@@ -5148,12 +5155,21 @@ static void enable_blocks_attention(struct bnx2x *bp)
 }
 
 
+static void bnx2x_reset_common(struct bnx2x *bp)
+{
+	/* reset_common */
+	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
+	       0xd3ffff7f);
+	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, 0x1403);
+}
+
 static int bnx2x_init_common(struct bnx2x *bp)
 {
 	u32 val, i;
 
 	DP(BNX2X_MSG_MCP, "starting common init  func %d\n", BP_FUNC(bp));
 
+	bnx2x_reset_common(bp);
 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0xffffffff);
 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET, 0xfffc);
 
@@ -6134,8 +6150,8 @@ static void bnx2x_netif_start(struct bnx2x *bp)
 static void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw)
 {
 	bnx2x_int_disable_sync(bp, disable_hw);
+	bnx2x_napi_disable(bp);
 	if (netif_running(bp->dev)) {
-		bnx2x_napi_disable(bp);
 		netif_tx_disable(bp->dev);
 		bp->dev->trans_start = jiffies;	/* prevent tx timeout */
 	}
@@ -6319,7 +6335,7 @@ static void bnx2x_set_rx_mode(struct net_device *dev);
 static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 {
 	u32 load_code;
-	int i, rc;
+	int i, rc = 0;
 #ifdef BNX2X_STOP_ON_ERROR
 	if (unlikely(bp->panic))
 		return -EPERM;
@@ -6327,48 +6343,6 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 
 	bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD;
 
-	/* Send LOAD_REQUEST command to MCP
-	   Returns the type of LOAD command:
-	   if it is the first port to be initialized
-	   common blocks should be initialized, otherwise - not
-	*/
-	if (!BP_NOMCP(bp)) {
-		load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ);
-		if (!load_code) {
-			BNX2X_ERR("MCP response failure, aborting\n");
-			return -EBUSY;
-		}
-		if (load_code == FW_MSG_CODE_DRV_LOAD_REFUSED)
-			return -EBUSY; /* other port in diagnostic mode */
-
-	} else {
-		int port = BP_PORT(bp);
-
-		DP(NETIF_MSG_IFUP, "NO MCP load counts before us %d, %d, %d\n",
-		   load_count[0], load_count[1], load_count[2]);
-		load_count[0]++;
-		load_count[1 + port]++;
-		DP(NETIF_MSG_IFUP, "NO MCP new load counts       %d, %d, %d\n",
-		   load_count[0], load_count[1], load_count[2]);
-		if (load_count[0] == 1)
-			load_code = FW_MSG_CODE_DRV_LOAD_COMMON;
-		else if (load_count[1 + port] == 1)
-			load_code = FW_MSG_CODE_DRV_LOAD_PORT;
-		else
-			load_code = FW_MSG_CODE_DRV_LOAD_FUNCTION;
-	}
-
-	if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) ||
-	    (load_code == FW_MSG_CODE_DRV_LOAD_PORT))
-		bp->port.pmf = 1;
-	else
-		bp->port.pmf = 0;
-	DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
-
-	/* if we can't use MSI-X we only need one fp,
-	 * so try to enable MSI-X with the requested number of fp's
-	 * and fallback to inta with one fp
-	 */
 	if (use_inta) {
 		bp->num_queues = 1;
 
@@ -6383,7 +6357,15 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		else
 			bp->num_queues = 1;
 
-		if (bnx2x_enable_msix(bp)) {
+		DP(NETIF_MSG_IFUP,
+		   "set number of queues to %d\n", bp->num_queues);
+
+		/* if we can't use MSI-X we only need one fp,
+		 * so try to enable MSI-X with the requested number of fp's
+		 * and fallback to MSI or legacy INTx with one fp
+		 */
+		rc = bnx2x_enable_msix(bp);
+		if (rc) {
 			/* failed to enable MSI-X */
 			bp->num_queues = 1;
 			if (use_multi)
@@ -6391,8 +6373,6 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 					  " to enable MSI-X\n");
 		}
 	}
-	DP(NETIF_MSG_IFUP,
-	   "set number of queues to %d\n", bp->num_queues);
 
 	if (bnx2x_alloc_mem(bp))
 		return -ENOMEM;
@@ -6401,30 +6381,85 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		bnx2x_fp(bp, i, disable_tpa) =
 					((bp->flags & TPA_ENABLE_FLAG) == 0);
 
+	for_each_queue(bp, i)
+		netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
+			       bnx2x_poll, 128);
+
+#ifdef BNX2X_STOP_ON_ERROR
+	for_each_queue(bp, i) {
+		struct bnx2x_fastpath *fp = &bp->fp[i];
+
+		fp->poll_no_work = 0;
+		fp->poll_calls = 0;
+		fp->poll_max_calls = 0;
+		fp->poll_complete = 0;
+		fp->poll_exit = 0;
+	}
+#endif
+	bnx2x_napi_enable(bp);
+
 	if (bp->flags & USING_MSIX_FLAG) {
 		rc = bnx2x_req_msix_irqs(bp);
 		if (rc) {
 			pci_disable_msix(bp->pdev);
-			goto load_error;
+			goto load_error1;
 		}
+		printk(KERN_INFO PFX "%s: using MSI-X\n", bp->dev->name);
 	} else {
 		bnx2x_ack_int(bp);
 		rc = bnx2x_req_irq(bp);
 		if (rc) {
-			BNX2X_ERR("IRQ request failed, aborting\n");
-			goto load_error;
+			BNX2X_ERR("IRQ request failed  rc %d, aborting\n", rc);
+			goto load_error1;
 		}
 	}
 
-	for_each_queue(bp, i)
-		netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
-			       bnx2x_poll, 128);
+	/* Send LOAD_REQUEST command to MCP
+	   Returns the type of LOAD command:
+	   if it is the first port to be initialized
+	   common blocks should be initialized, otherwise - not
+	*/
+	if (!BP_NOMCP(bp)) {
+		load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ);
+		if (!load_code) {
+			BNX2X_ERR("MCP response failure, aborting\n");
+			rc = -EBUSY;
+			goto load_error2;
+		}
+		if (load_code == FW_MSG_CODE_DRV_LOAD_REFUSED) {
+			rc = -EBUSY; /* other port in diagnostic mode */
+			goto load_error2;
+		}
+
+	} else {
+		int port = BP_PORT(bp);
+
+		DP(NETIF_MSG_IFUP, "NO MCP load counts before us %d, %d, %d\n",
+		   load_count[0], load_count[1], load_count[2]);
+		load_count[0]++;
+		load_count[1 + port]++;
+		DP(NETIF_MSG_IFUP, "NO MCP new load counts       %d, %d, %d\n",
+		   load_count[0], load_count[1], load_count[2]);
+		if (load_count[0] == 1)
+			load_code = FW_MSG_CODE_DRV_LOAD_COMMON;
+		else if (load_count[1 + port] == 1)
+			load_code = FW_MSG_CODE_DRV_LOAD_PORT;
+		else
+			load_code = FW_MSG_CODE_DRV_LOAD_FUNCTION;
+	}
+
+	if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) ||
+	    (load_code == FW_MSG_CODE_DRV_LOAD_PORT))
+		bp->port.pmf = 1;
+	else
+		bp->port.pmf = 0;
+	DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
 
 	/* Initialize HW */
 	rc = bnx2x_init_hw(bp, load_code);
 	if (rc) {
 		BNX2X_ERR("HW init failed, aborting\n");
-		goto load_int_disable;
+		goto load_error2;
 	}
 
 	/* Setup NIC internals and enable interrupts */
@@ -6436,7 +6471,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		if (!load_code) {
 			BNX2X_ERR("MCP response failure, aborting\n");
 			rc = -EBUSY;
-			goto load_rings_free;
+			goto load_error3;
 		}
 	}
 
@@ -6445,7 +6480,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	rc = bnx2x_setup_leading(bp);
 	if (rc) {
 		BNX2X_ERR("Setup leading failed!\n");
-		goto load_netif_stop;
+		goto load_error3;
 	}
 
 	if (CHIP_IS_E1H(bp))
@@ -6458,7 +6493,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		for_each_nondefault_queue(bp, i) {
 			rc = bnx2x_setup_multi(bp, i);
 			if (rc)
-				goto load_netif_stop;
+				goto load_error3;
 		}
 
 	if (CHIP_IS_E1(bp))
@@ -6474,18 +6509,18 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	case LOAD_NORMAL:
 		/* Tx queue should be only reenabled */
 		netif_wake_queue(bp->dev);
+		/* Initialize the receive filter. */
 		bnx2x_set_rx_mode(bp->dev);
 		break;
 
 	case LOAD_OPEN:
 		netif_start_queue(bp->dev);
+		/* Initialize the receive filter. */
 		bnx2x_set_rx_mode(bp->dev);
-		if (bp->flags & USING_MSIX_FLAG)
-			printk(KERN_INFO PFX "%s: using MSI-X\n",
-			       bp->dev->name);
 		break;
 
 	case LOAD_DIAG:
+		/* Initialize the receive filter. */
 		bnx2x_set_rx_mode(bp->dev);
 		bp->state = BNX2X_STATE_DIAG;
 		break;
@@ -6503,20 +6538,25 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 
 	return 0;
 
-load_netif_stop:
-	bnx2x_napi_disable(bp);
-load_rings_free:
+load_error3:
+	bnx2x_int_disable_sync(bp, 1);
+	if (!BP_NOMCP(bp)) {
+		bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP);
+		bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE);
+	}
+	bp->port.pmf = 0;
 	/* Free SKBs, SGEs, TPA pool and driver internals */
 	bnx2x_free_skbs(bp);
 	for_each_queue(bp, i)
 		bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
-load_int_disable:
-	bnx2x_int_disable_sync(bp, 1);
+load_error2:
 	/* Release IRQs */
 	bnx2x_free_irq(bp);
-load_error:
+load_error1:
+	bnx2x_napi_disable(bp);
+	for_each_queue(bp, i)
+		netif_napi_del(&bnx2x_fp(bp, i, napi));
 	bnx2x_free_mem(bp);
-	bp->port.pmf = 0;
 
 	/* TBD we really need to reset the chip
 	   if we want to recover from this */
@@ -6589,6 +6629,7 @@ static int bnx2x_stop_leading(struct bnx2x *bp)
 		}
 		cnt--;
 		msleep(1);
+		rmb(); /* Refresh the dsb_sp_prod */
 	}
 	bp->state = BNX2X_STATE_CLOSING_WAIT4_UNLOAD;
 	bp->fp[0].state = BNX2X_FP_STATE_CLOSED;
@@ -6640,14 +6681,6 @@ static void bnx2x_reset_port(struct bnx2x *bp)
 	/* TODO: Close Doorbell port? */
 }
 
-static void bnx2x_reset_common(struct bnx2x *bp)
-{
-	/* reset_common */
-	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
-	       0xd3ffff7f);
-	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, 0x1403);
-}
-
 static void bnx2x_reset_chip(struct bnx2x *bp, u32 reset_code)
 {
 	DP(BNX2X_MSG_MCP, "function %d  reset_code %x\n",
@@ -6688,8 +6721,7 @@ static int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 	bnx2x_set_storm_rx_mode(bp);
 
 	bnx2x_netif_stop(bp, 1);
-	if (!netif_running(bp->dev))
-		bnx2x_napi_disable(bp);
+
 	del_timer_sync(&bp->timer);
 	SHMEM_WR(bp, func_mb[BP_FUNC(bp)].drv_pulse_mb,
 		 (DRV_PULSE_ALWAYS_ALIVE | bp->fw_drv_pulse_wr_seq));
@@ -6704,7 +6736,7 @@ static int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 
 		cnt = 1000;
 		smp_rmb();
-		while (bnx2x_has_tx_work(fp)) {
+		while (bnx2x_has_tx_work_unload(fp)) {
 
 			bnx2x_tx_int(fp, 1000);
 			if (!cnt) {
@@ -6833,6 +6865,8 @@ unload_error:
 	bnx2x_free_skbs(bp);
 	for_each_queue(bp, i)
 		bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
+	for_each_queue(bp, i)
+		netif_napi_del(&bnx2x_fp(bp, i, napi));
 	bnx2x_free_mem(bp);
 
 	bp->state = BNX2X_STATE_CLOSED;
@@ -8723,18 +8757,17 @@ static int bnx2x_run_loopback(struct bnx2x *bp, int loopback_mode, u8 link_up)
 
 	if (loopback_mode == BNX2X_MAC_LOOPBACK) {
 		bp->link_params.loopback_mode = LOOPBACK_BMAC;
-		bnx2x_acquire_phy_lock(bp);
 		bnx2x_phy_init(&bp->link_params, &bp->link_vars);
-		bnx2x_release_phy_lock(bp);
 
 	} else if (loopback_mode == BNX2X_PHY_LOOPBACK) {
+		u16 cnt = 1000;
 		bp->link_params.loopback_mode = LOOPBACK_XGXS_10;
-		bnx2x_acquire_phy_lock(bp);
 		bnx2x_phy_init(&bp->link_params, &bp->link_vars);
-		bnx2x_release_phy_lock(bp);
 		/* wait until link state is restored */
-		bnx2x_wait_for_link(bp, link_up);
-
+		if (link_up)
+			while (cnt-- && bnx2x_test_link(&bp->link_params,
+							&bp->link_vars))
+				msleep(10);
 	} else
 		return -EINVAL;
 
@@ -8840,6 +8873,7 @@ static int bnx2x_test_loopback(struct bnx2x *bp, u8 link_up)
 		return BNX2X_LOOPBACK_FAILED;
 
 	bnx2x_netif_stop(bp, 1);
+	bnx2x_acquire_phy_lock(bp);
 
 	if (bnx2x_run_loopback(bp, BNX2X_MAC_LOOPBACK, link_up)) {
 		DP(NETIF_MSG_PROBE, "MAC loopback failed\n");
@@ -8851,6 +8885,7 @@ static int bnx2x_test_loopback(struct bnx2x *bp, u8 link_up)
 		rc |= BNX2X_PHY_LOOPBACK_FAILED;
 	}
 
+	bnx2x_release_phy_lock(bp);
 	bnx2x_netif_start(bp);
 
 	return rc;
@@ -9805,6 +9840,8 @@ static int bnx2x_open(struct net_device *dev)
 {
 	struct bnx2x *bp = netdev_priv(dev);
 
+	netif_carrier_off(dev);
+
 	bnx2x_set_power_state(bp, PCI_D0);
 
 	return bnx2x_nic_load(bp, LOAD_OPEN);
@@ -10310,8 +10347,6 @@ static int __devinit bnx2x_init_one(struct pci_dev *pdev,
 		goto init_one_exit;
 	}
 
-	netif_carrier_off(dev);
-
 	bp->common.name = board_info[ent->driver_data].name;
 	printk(KERN_INFO "%s: %s (%c%d) PCI-E x%d %s found at mem %lx,"
 	       " IRQ %d, ", dev->name, bp->common.name,
@@ -10459,6 +10494,8 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
 	bnx2x_free_skbs(bp);
 	for_each_queue(bp, i)
 		bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
+	for_each_queue(bp, i)
+		netif_napi_del(&bnx2x_fp(bp, i, napi));
 	bnx2x_free_mem(bp);
 
 	bp->state = BNX2X_STATE_CLOSED;