[PATCH net-next 00/13] bnx2x: net-next patch series

[PATCH net-next 00/13] bnx2x: net-next patch series

[Yuval Mintz]

Hi Dave,

This patch series contains several small changes to the bnx2x driver,
including dcb changes, graceful error handling and benign error masking,
and setting the driver's configuration according to management/nvram
held values.

Please consider applying these patches to 'net-next'.

Thanks,
Yuval Mintz

[PATCH net-next 01/13] bnx2x: revised and corrected SPIO access

[Yuval Mintz]

Changed naming convention of SPIO macros, and prevented access to invalid SPIOs.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   43 ++++++++++------------
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h  |   10 +++++
 2 files changed, 30 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index b4659c4..5a22e19 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -2032,40 +2032,39 @@ int bnx2x_set_gpio_int(struct bnx2x *bp, int gpio_num, u32 mode, u8 port)
 	return 0;
 }
 
-static int bnx2x_set_spio(struct bnx2x *bp, int spio_num, u32 mode)
+static int bnx2x_set_spio(struct bnx2x *bp, int spio, u32 mode)
 {
-	u32 spio_mask = (1 << spio_num);
 	u32 spio_reg;
 
-	if ((spio_num < MISC_REGISTERS_SPIO_4) ||
-	    (spio_num > MISC_REGISTERS_SPIO_7)) {
-		BNX2X_ERR("Invalid SPIO %d\n", spio_num);
+	/* Only 2 SPIOs are configurable */
+	if ((spio != MISC_SPIO_SPIO4) && (spio != MISC_SPIO_SPIO5)) {
+		BNX2X_ERR("Invalid SPIO 0x%x\n", spio);
 		return -EINVAL;
 	}
 
 	bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_SPIO);
 	/* read SPIO and mask except the float bits */
-	spio_reg = (REG_RD(bp, MISC_REG_SPIO) & MISC_REGISTERS_SPIO_FLOAT);
+	spio_reg = (REG_RD(bp, MISC_REG_SPIO) & MISC_SPIO_FLOAT);
 
 	switch (mode) {
-	case MISC_REGISTERS_SPIO_OUTPUT_LOW:
-		DP(NETIF_MSG_HW, "Set SPIO %d -> output low\n", spio_num);
+	case MISC_SPIO_OUTPUT_LOW:
+		DP(NETIF_MSG_HW, "Set SPIO 0x%x -> output low\n", spio);
 		/* clear FLOAT and set CLR */
-		spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
-		spio_reg |=  (spio_mask << MISC_REGISTERS_SPIO_CLR_POS);
+		spio_reg &= ~(spio << MISC_SPIO_FLOAT_POS);
+		spio_reg |=  (spio << MISC_SPIO_CLR_POS);
 		break;
 
-	case MISC_REGISTERS_SPIO_OUTPUT_HIGH:
-		DP(NETIF_MSG_HW, "Set SPIO %d -> output high\n", spio_num);
+	case MISC_SPIO_OUTPUT_HIGH:
+		DP(NETIF_MSG_HW, "Set SPIO 0x%x -> output high\n", spio);
 		/* clear FLOAT and set SET */
-		spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
-		spio_reg |=  (spio_mask << MISC_REGISTERS_SPIO_SET_POS);
+		spio_reg &= ~(spio << MISC_SPIO_FLOAT_POS);
+		spio_reg |=  (spio << MISC_SPIO_SET_POS);
 		break;
 
-	case MISC_REGISTERS_SPIO_INPUT_HI_Z:
-		DP(NETIF_MSG_HW, "Set SPIO %d -> input\n", spio_num);
+	case MISC_SPIO_INPUT_HI_Z:
+		DP(NETIF_MSG_HW, "Set SPIO 0x%x -> input\n", spio);
 		/* set FLOAT */
-		spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
+		spio_reg |= (spio << MISC_SPIO_FLOAT_POS);
 		break;
 
 	default:
@@ -6196,18 +6195,16 @@ static void bnx2x_setup_fan_failure_detection(struct bnx2x *bp)
 		return;
 
 	/* Fan failure is indicated by SPIO 5 */
-	bnx2x_set_spio(bp, MISC_REGISTERS_SPIO_5,
-		       MISC_REGISTERS_SPIO_INPUT_HI_Z);
+	bnx2x_set_spio(bp, MISC_SPIO_SPIO5, MISC_SPIO_INPUT_HI_Z);
 
 	/* set to active low mode */
 	val = REG_RD(bp, MISC_REG_SPIO_INT);
-	val |= ((1 << MISC_REGISTERS_SPIO_5) <<
-					MISC_REGISTERS_SPIO_INT_OLD_SET_POS);
+	val |= (MISC_SPIO_SPIO5 << MISC_SPIO_INT_OLD_SET_POS);
 	REG_WR(bp, MISC_REG_SPIO_INT, val);
 
 	/* enable interrupt to signal the IGU */
 	val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
-	val |= (1 << MISC_REGISTERS_SPIO_5);
+	val |= MISC_SPIO_SPIO5;
 	REG_WR(bp, MISC_REG_SPIO_EVENT_EN, val);
 }
 
@@ -6969,7 +6966,7 @@ static int bnx2x_init_hw_port(struct bnx2x *bp)
 
 	/* If SPIO5 is set to generate interrupts, enable it for this port */
 	val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
-	if (val & (1 << MISC_REGISTERS_SPIO_5)) {
+	if (val & MISC_SPIO_SPIO5) {
 		u32 reg_addr = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
 				       MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
 		val = REG_RD(bp, reg_addr);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
index f8d432a..87cf37c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
@@ -5942,6 +5942,16 @@
 #define MISC_REGISTERS_SPIO_OUTPUT_HIGH 			 1
 #define MISC_REGISTERS_SPIO_OUTPUT_LOW				 0
 #define MISC_REGISTERS_SPIO_SET_POS				 8
+#define MISC_SPIO_CLR_POS					 16
+#define MISC_SPIO_FLOAT					 (0xffL<<24)
+#define MISC_SPIO_FLOAT_POS					 24
+#define MISC_SPIO_INPUT_HI_Z					 2
+#define MISC_SPIO_INT_OLD_SET_POS				 16
+#define MISC_SPIO_OUTPUT_HIGH					 1
+#define MISC_SPIO_OUTPUT_LOW					 0
+#define MISC_SPIO_SET_POS					 8
+#define MISC_SPIO_SPIO4					 0x10
+#define MISC_SPIO_SPIO5					 0x20
 #define HW_LOCK_MAX_RESOURCE_VALUE				 31
 #define HW_LOCK_RESOURCE_DCBX_ADMIN_MIB				 13
 #define HW_LOCK_RESOURCE_DRV_FLAGS				 10
-- 
1.7.1

[PATCH net-next 02/13] bnx2x: parity recovery flow enhancement

[Yuval Mintz]

From: Barak Witkowski <barak@broadcom.com>

Parity recovery was enhanced in order to handle a few more corner cases.

Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   33 +++++++++++++--------
 1 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 5a22e19..62fcf0f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -8720,7 +8720,8 @@ static void bnx2x_reset_mcp_prep(struct bnx2x *bp, u32 *magic_val)
 
 	/* Get shmem offset */
 	shmem = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
-	validity_offset = offsetof(struct shmem_region, validity_map[0]);
+	validity_offset =
+		offsetof(struct shmem_region, validity_map[BP_PORT(bp)]);
 
 	/* Clear validity map flags */
 	if (shmem > 0)
@@ -8813,7 +8814,11 @@ static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_CMN_CPU |
 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_CMN_CORE;
 
-	/* Don't reset the following blocks */
+	/* Don't reset the following blocks.
+	 * Important: per port blocks (such as EMAC, BMAC, UMAC) can't be
+	 *            reset, as in 4 port device they might still be owned
+	 *            by the MCP (there is only one leader per path).
+	 */
 	not_reset_mask1 =
 		MISC_REGISTERS_RESET_REG_1_RST_HC |
 		MISC_REGISTERS_RESET_REG_1_RST_PXPV |
@@ -8829,19 +8834,19 @@ static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_REG_HARD_CORE |
 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_HARD_CORE_RST_B |
 		MISC_REGISTERS_RESET_REG_2_RST_ATC |
-		MISC_REGISTERS_RESET_REG_2_PGLC;
+		MISC_REGISTERS_RESET_REG_2_PGLC |
+		MISC_REGISTERS_RESET_REG_2_RST_BMAC0 |
+		MISC_REGISTERS_RESET_REG_2_RST_BMAC1 |
+		MISC_REGISTERS_RESET_REG_2_RST_EMAC0 |
+		MISC_REGISTERS_RESET_REG_2_RST_EMAC1 |
+		MISC_REGISTERS_RESET_REG_2_UMAC0 |
+		MISC_REGISTERS_RESET_REG_2_UMAC1;
 
 	/*
 	 * Keep the following blocks in reset:
 	 *  - all xxMACs are handled by the bnx2x_link code.
 	 */
 	stay_reset2 =
-		MISC_REGISTERS_RESET_REG_2_RST_BMAC0 |
-		MISC_REGISTERS_RESET_REG_2_RST_BMAC1 |
-		MISC_REGISTERS_RESET_REG_2_RST_EMAC0 |
-		MISC_REGISTERS_RESET_REG_2_RST_EMAC1 |
-		MISC_REGISTERS_RESET_REG_2_UMAC0 |
-		MISC_REGISTERS_RESET_REG_2_UMAC1 |
 		MISC_REGISTERS_RESET_REG_2_XMAC |
 		MISC_REGISTERS_RESET_REG_2_XMAC_SOFT;
 
@@ -8931,6 +8936,7 @@ static int bnx2x_process_kill(struct bnx2x *bp, bool global)
 	int cnt = 1000;
 	u32 val = 0;
 	u32 sr_cnt, blk_cnt, port_is_idle_0, port_is_idle_1, pgl_exp_rom2;
+		u32 tags_63_32 = 0;
 
 
 	/* Empty the Tetris buffer, wait for 1s */
@@ -8940,10 +8946,14 @@ static int bnx2x_process_kill(struct bnx2x *bp, bool global)
 		port_is_idle_0 = REG_RD(bp, PXP2_REG_RD_PORT_IS_IDLE_0);
 		port_is_idle_1 = REG_RD(bp, PXP2_REG_RD_PORT_IS_IDLE_1);
 		pgl_exp_rom2 = REG_RD(bp, PXP2_REG_PGL_EXP_ROM2);
+		if (CHIP_IS_E3(bp))
+			tags_63_32 = REG_RD(bp, PGLUE_B_REG_TAGS_63_32);
+
 		if ((sr_cnt == 0x7e) && (blk_cnt == 0xa0) &&
 		    ((port_is_idle_0 & 0x1) == 0x1) &&
 		    ((port_is_idle_1 & 0x1) == 0x1) &&
-		    (pgl_exp_rom2 == 0xffffffff))
+		    (pgl_exp_rom2 == 0xffffffff) &&
+		    (!CHIP_IS_E3(bp) || (tags_63_32 == 0xffffffff)))
 			break;
 		usleep_range(1000, 1000);
 	} while (cnt-- > 0);
@@ -9000,9 +9010,6 @@ static int bnx2x_process_kill(struct bnx2x *bp, bool global)
 
 	/* TBD: Add resetting the NO_MCP mode DB here */
 
-	/* PXP */
-	bnx2x_pxp_prep(bp);
-
 	/* Open the gates #2, #3 and #4 */
 	bnx2x_set_234_gates(bp, false);
 
-- 
1.7.1

[PATCH net-next 03/13] bnx2x: Management can control PFC/ETS

[Yuval Mintz]

From: Barak Witkowski <barak@broadcom.com>

If configured for PFC/ETS by management, configure chip regardless of the
presence of a remote peer which supports DCBX.

Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c |    2 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c |   21 +++++++++++++++++----
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h |    7 ++++++-
 3 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 8779ac1..e95174d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2426,7 +2426,7 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	}
 
 	if (bp->port.pmf)
-		bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
+		bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_PORT_MASK, 0);
 	else
 		bnx2x__link_status_update(bp);
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index cba4a16..c0d9b69 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -413,8 +413,11 @@ static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 
 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
 {
+	int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+			     GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+				       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 	if (bp->dcbx_port_params.pfc.enabled &&
-	    !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
+	    (!(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) || mfw_configured))
 		/*
 		 * 1. Fills up common PFC structures if required
 		 * 2. Configure NIG, MAC and BRB via the elink
@@ -552,10 +555,13 @@ static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
 
 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
 {
+	int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+			     GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+				       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 	bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 
 	if (!bp->dcbx_port_params.ets.enabled ||
-	    (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
+	    ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured))
 		return;
 
 	if (CHIP_IS_E3B0(bp))
@@ -1802,11 +1808,14 @@ static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
 	u8 cos = 0, pri = 0;
 	struct priority_cos *tt2cos;
 	u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
+	int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+			     GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+				       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 
 	memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
 
 	/* to disable DCB - the structure must be zeroed */
-	if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
+	if ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured)
 		return;
 
 	/*shortcut*/
@@ -2073,8 +2082,12 @@ static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
 			   "Handling parity error recovery. Try again later\n");
 		return 1;
 	}
-	if (netif_running(bp->dev))
+	if (netif_running(bp->dev)) {
+		bnx2x_update_drv_flags(bp,
+				       1 << DRV_FLAGS_DCB_MFW_CONFIGURED,
+				       1);
 		bnx2x_dcbx_init(bp, true);
+	}
 	DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
 	if (rc)
 		return 1;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 1504e0a..9a51d49 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -2088,8 +2088,13 @@ struct shmem2_region {
 
 	/* generic flags controlled by the driver */
 	u32 drv_flags;
-	#define DRV_FLAGS_DCB_CONFIGURED                0x1
+	#define DRV_FLAGS_DCB_CONFIGURED		0x0
+	#define DRV_FLAGS_DCB_CONFIGURATION_ABORTED	0x1
+	#define DRV_FLAGS_DCB_MFW_CONFIGURED	0x2
 
+	#define DRV_FLAGS_PORT_MASK	((1 << DRV_FLAGS_DCB_CONFIGURED) | \
+			(1 << DRV_FLAGS_DCB_CONFIGURATION_ABORTED) | \
+			(1 << DRV_FLAGS_DCB_MFW_CONFIGURED))
 	/* pointer to extended dev_info shared data copied from nvm image */
 	u32 extended_dev_info_shared_addr;
 	u32 ncsi_oem_data_addr;
-- 
1.7.1

[PATCH net-next 04/13] bnx2x: Filter packets on FCoE rings

[Yuval Mintz]

From: Dmitry Kravkov <dmitry@broadcom.com>

Whenever bnx2x fails to transmit a packet due to a full Tx ring, if the
ring size is zero (indicating an FCoE ring) driver filters the packet out
and gracefully continues.
Driver also gathers statistics on such filtered packets.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c    |   11 ++++++++---
 .../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c    |    6 +++++-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c  |    1 +
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h  |    3 +++
 4 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index e95174d..5e07aa5 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -3127,11 +3127,16 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			BDS_PER_TX_PKT +
 			NEXT_CNT_PER_TX_PKT(MAX_BDS_PER_TX_PKT))) {
 		/* Handle special storage cases separately */
-		if (txdata->tx_ring_size != 0) {
-			BNX2X_ERR("BUG! Tx ring full when queue awake!\n");
+		if (txdata->tx_ring_size == 0) {
+			struct bnx2x_eth_q_stats *q_stats =
+				bnx2x_fp_qstats(bp, txdata->parent_fp);
+			q_stats->driver_filtered_tx_pkt++;
+			dev_kfree_skb(skb);
+			return NETDEV_TX_OK;
+		}
 			bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++;
 			netif_tx_stop_queue(txq);
-		}
+		BNX2X_ERR("BUG! Tx ring full when queue awake!\n");
 
 		return NETDEV_TX_BUSY;
 	}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index e05f981..c7270c0 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -62,7 +62,9 @@ static const struct {
 						8, "[%s]: tpa_aggregations" },
 	{ Q_STATS_OFFSET32(total_tpa_aggregated_frames_hi),
 					8, "[%s]: tpa_aggregated_frames"},
-	{ Q_STATS_OFFSET32(total_tpa_bytes_hi),	8, "[%s]: tpa_bytes"}
+	{ Q_STATS_OFFSET32(total_tpa_bytes_hi),	8, "[%s]: tpa_bytes"},
+	{ Q_STATS_OFFSET32(driver_filtered_tx_pkt),
+					4, "[%s]: driver_filtered_tx_pkt" }
 };
 
 #define BNX2X_NUM_Q_STATS ARRAY_SIZE(bnx2x_q_stats_arr)
@@ -177,6 +179,8 @@ static const struct {
 			4, STATS_FLAGS_FUNC, "recoverable_errors" },
 	{ STATS_OFFSET32(unrecoverable_error),
 			4, STATS_FLAGS_FUNC, "unrecoverable_errors" },
+	{ STATS_OFFSET32(driver_filtered_tx_pkt),
+			4, STATS_FLAGS_FUNC, "driver_filtered_tx_pkt" },
 	{ STATS_OFFSET32(eee_tx_lpi),
 			4, STATS_FLAGS_PORT, "Tx LPI entry count"}
 };
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index 348ed02..89ec066 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -1149,6 +1149,7 @@ static void bnx2x_drv_stats_update(struct bnx2x *bp)
 		UPDATE_ESTAT_QSTAT(rx_err_discard_pkt);
 		UPDATE_ESTAT_QSTAT(rx_skb_alloc_failed);
 		UPDATE_ESTAT_QSTAT(hw_csum_err);
+		UPDATE_ESTAT_QSTAT(driver_filtered_tx_pkt);
 	}
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
index 24b8e50..b4d7b26 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
@@ -203,6 +203,7 @@ struct bnx2x_eth_stats {
 	/* Recovery */
 	u32 recoverable_error;
 	u32 unrecoverable_error;
+	u32 driver_filtered_tx_pkt;
 	/* src: Clear-on-Read register; Will not survive PMF Migration */
 	u32 eee_tx_lpi;
 };
@@ -264,6 +265,7 @@ struct bnx2x_eth_q_stats {
 	u32 total_tpa_aggregated_frames_lo;
 	u32 total_tpa_bytes_hi;
 	u32 total_tpa_bytes_lo;
+	u32 driver_filtered_tx_pkt;
 };
 
 struct bnx2x_eth_stats_old {
@@ -315,6 +317,7 @@ struct bnx2x_eth_q_stats_old {
 	u32 rx_err_discard_pkt_old;
 	u32 rx_skb_alloc_failed_old;
 	u32 hw_csum_err_old;
+	u32 driver_filtered_tx_pkt_old;
 };
 
 struct bnx2x_net_stats_old {
-- 
1.7.1

[PATCH net-next 05/13] bnx2x: Correct advertised speed/duplex

[Yuval Mintz]

If link is down due to management (and not due to actual phy link being lost),
driver should still behave as if the link is down; Querying via ethtool about
speed/duplex state should result in 'UNKNOWN' (same behaviour as when link is
actually down).

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 .../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c    |   12 ++++--------
 1 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index c7270c0..277f17e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -231,18 +231,14 @@ static int bnx2x_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 		cmd->advertising &= ~(ADVERTISED_10000baseT_Full);
 	}
 
-	if ((bp->state == BNX2X_STATE_OPEN) && (bp->link_vars.link_up)) {
-		if (!(bp->flags & MF_FUNC_DIS)) {
-			ethtool_cmd_speed_set(cmd, bp->link_vars.line_speed);
+	if ((bp->state == BNX2X_STATE_OPEN) && bp->link_vars.link_up &&
+	    !(bp->flags & MF_FUNC_DIS)) {
 			cmd->duplex = bp->link_vars.duplex;
-		} else {
-			ethtool_cmd_speed_set(
-				cmd, bp->link_params.req_line_speed[cfg_idx]);
-			cmd->duplex = bp->link_params.req_duplex[cfg_idx];
-		}
 
 		if (IS_MF(bp) && !BP_NOMCP(bp))
 			ethtool_cmd_speed_set(cmd, bnx2x_get_mf_speed(bp));
+		else
+			ethtool_cmd_speed_set(cmd, bp->link_vars.line_speed);
 	} else {
 		cmd->duplex = DUPLEX_UNKNOWN;
 		ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
-- 
1.7.1

[PATCH net-next 06/13] bnx2x: nvram enables dropless flow control

[Yuval Mintz]

It is now possible to enable dropless flow control via nvram.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h      |    2 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h  |   13 +++++++++++--
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   20 +++++++++++++++++++-
 3 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 641d884..03647bf 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1488,7 +1488,7 @@ struct bnx2x {
 
 	int			qm_cid_count;
 
-	int			dropless_fc;
+	bool			dropless_fc;
 
 	void			*t2;
 	dma_addr_t		t2_mapping;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 9a51d49..3369a50 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -500,7 +500,15 @@ struct port_hw_cfg {		    /* port 0: 0x12c  port 1: 0x2bc */
 	u32 e3_cmn_pin_cfg1;				    /* 0x170 */
 	#define PORT_HW_CFG_E3_OVER_CURRENT_MASK            0x000000FF
 	#define PORT_HW_CFG_E3_OVER_CURRENT_SHIFT                    0
-	u32 reserved0[7];				    /* 0x174 */
+
+	/*  pause on host ring */
+	u32 generic_features;                               /* 0x174 */
+	#define PORT_HW_CFG_PAUSE_ON_HOST_RING_MASK                   0x00000001
+	#define PORT_HW_CFG_PAUSE_ON_HOST_RING_SHIFT                  0
+	#define PORT_HW_CFG_PAUSE_ON_HOST_RING_DISABLED               0x00000000
+	#define PORT_HW_CFG_PAUSE_ON_HOST_RING_ENABLED                0x00000001
+
+	u32 reserved0[6];				    /* 0x178 */
 
 	u32 aeu_int_mask;				    /* 0x190 */
 
@@ -1518,12 +1526,13 @@ enum mf_cfg_afex_vlan_mode {
 /* This structure is not applicable and should not be accessed on 57711 */
 struct func_ext_cfg {
 	u32 func_cfg;
-	#define MACP_FUNC_CFG_FLAGS_MASK                0x000000FF
+	#define MACP_FUNC_CFG_FLAGS_MASK                0x0000007F
 	#define MACP_FUNC_CFG_FLAGS_SHIFT               0
 	#define MACP_FUNC_CFG_FLAGS_ENABLED             0x00000001
 	#define MACP_FUNC_CFG_FLAGS_ETHERNET            0x00000002
 	#define MACP_FUNC_CFG_FLAGS_ISCSI_OFFLOAD       0x00000004
 	#define MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD        0x00000008
+	#define MACP_FUNC_CFG_PAUSE_ON_HOST_RING        0x00000080
 
 	u32 iscsi_mac_addr_upper;
 	u32 iscsi_mac_addr_lower;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 62fcf0f..89b3d10 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -10641,8 +10641,26 @@ static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
 			"bad Ethernet MAC address configuration: %pM\n"
 			"change it manually before bringing up the appropriate network interface\n",
 			bp->dev->dev_addr);
+}
 
+static bool __devinit bnx2x_get_dropless_info(struct bnx2x *bp)
+{
+	int tmp;
+	u32 cfg;
 
+	if (IS_MF(bp) && !CHIP_IS_E1x(bp)) {
+		/* Take function: tmp = func */
+		tmp = BP_ABS_FUNC(bp);
+		cfg = MF_CFG_RD(bp, func_ext_config[tmp].func_cfg);
+		cfg = !!(cfg & MACP_FUNC_CFG_PAUSE_ON_HOST_RING);
+	} else {
+		/* Take port: tmp = port */
+		tmp = BP_PORT(bp);
+		cfg = SHMEM_RD(bp,
+			       dev_info.port_hw_config[tmp].generic_features);
+		cfg = !!(cfg & PORT_HW_CFG_PAUSE_ON_HOST_RING_ENABLED);
+	}
+	return cfg;
 }
 
 static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
@@ -11063,7 +11081,7 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp)
 	if (CHIP_IS_E1(bp))
 		bp->dropless_fc = 0;
 	else
-		bp->dropless_fc = dropless_fc;
+		bp->dropless_fc = dropless_fc | bnx2x_get_dropless_info(bp);
 
 	bp->mrrs = mrrs;
 
-- 
1.7.1

[PATCH net-next 07/13] bnx2x: Ext. config accessed only on non-E1x.

[Yuval Mintz]

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 89b3d10..571508d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -10484,8 +10484,9 @@ static void __devinit bnx2x_get_fcoe_info(struct bnx2x *bp)
 		if (BNX2X_MF_EXT_PROTOCOL_FCOE(bp) && !CHIP_IS_E1x(bp))
 			bnx2x_get_ext_wwn_info(bp, func);
 
-	} else if (IS_MF_FCOE_SD(bp))
+	} else if (IS_MF_FCOE_SD(bp) && !CHIP_IS_E1x(bp)) {
 		bnx2x_get_ext_wwn_info(bp, func);
+	}
 
 	BNX2X_DEV_INFO("max_fcoe_conn 0x%x\n", bp->cnic_eth_dev.max_fcoe_conn);
 
-- 
1.7.1

[PATCH net-next 08/13] bnx2x: IGU parse error cause probe failure

[Yuval Mintz]

From: Barak Witkowski <barak@broadcom.com>

If IGU parse error is encountered during the probing process, the error
propagates and the probe gracefully fails (until now, such errors were ignored,
later causing mischief).

Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   17 ++++++++++++-----
 1 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 571508d..5ff0bcb 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -9974,7 +9974,7 @@ static void __devinit bnx2x_get_common_hwinfo(struct bnx2x *bp)
 #define IGU_FID(val)	GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID)
 #define IGU_VEC(val)	GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR)
 
-static void __devinit bnx2x_get_igu_cam_info(struct bnx2x *bp)
+static int __devinit bnx2x_get_igu_cam_info(struct bnx2x *bp)
 {
 	int pfid = BP_FUNC(bp);
 	int igu_sb_id;
@@ -9991,7 +9991,7 @@ static void __devinit bnx2x_get_igu_cam_info(struct bnx2x *bp)
 		bp->igu_dsb_id =  E1HVN_MAX * FP_SB_MAX_E1x +
 			(CHIP_MODE_IS_4_PORT(bp) ? pfid : vn);
 
-		return;
+		return 0;
 	}
 
 	/* IGU in normal mode - read CAM */
@@ -10025,8 +10025,12 @@ static void __devinit bnx2x_get_igu_cam_info(struct bnx2x *bp)
 	bp->igu_sb_cnt = min_t(int, bp->igu_sb_cnt, igu_sb_cnt);
 #endif
 
-	if (igu_sb_cnt == 0)
+	if (igu_sb_cnt == 0) {
 		BNX2X_ERR("CAM configuration error\n");
+		return -EINVAL;
+	}
+
+	return 0;
 }
 
 static void __devinit bnx2x_link_settings_supported(struct bnx2x *bp,
@@ -10706,6 +10710,8 @@ static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
 			if (REG_RD(bp, IGU_REG_RESET_MEMORIES)) {
 				dev_err(&bp->pdev->dev,
 					"FORCING Normal Mode failed!!!\n");
+				bnx2x_release_hw_lock(bp,
+						      HW_LOCK_RESOURCE_RESET);
 				return -EPERM;
 			}
 		}
@@ -10716,9 +10722,10 @@ static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
 		} else
 			BNX2X_DEV_INFO("IGU Normal Mode\n");
 
-		bnx2x_get_igu_cam_info(bp);
-
+		rc = bnx2x_get_igu_cam_info(bp);
 		bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
+		if (rc)
+			return rc;
 	}
 
 	/*
-- 
1.7.1

[PATCH net-next 09/13] bnx2x: mask CPL_OF interrupt

[Yuval Mintz]

Unmasked interrupt caused "FATAL HW block attention set2 0x20" messages
to erroneously appear, as the associated interrupt is fully recoverable.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   21 ++++++++++-----------
 1 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 5ff0bcb..983a0c8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -6059,6 +6059,8 @@ static int bnx2x_int_mem_test(struct bnx2x *bp)
 
 static void bnx2x_enable_blocks_attention(struct bnx2x *bp)
 {
+	u32 val;
+
 	REG_WR(bp, PXP_REG_PXP_INT_MASK_0, 0);
 	if (!CHIP_IS_E1x(bp))
 		REG_WR(bp, PXP_REG_PXP_INT_MASK_1, 0x40);
@@ -6092,17 +6094,14 @@ static void bnx2x_enable_blocks_attention(struct bnx2x *bp)
 /*	REG_WR(bp, CSEM_REG_CSEM_INT_MASK_0, 0); */
 /*	REG_WR(bp, CSEM_REG_CSEM_INT_MASK_1, 0); */
 
-	if (CHIP_REV_IS_FPGA(bp))
-		REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, 0x580000);
-	else if (!CHIP_IS_E1x(bp))
-		REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0,
-			   (PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_OF
-				| PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_AFT
-				| PXP2_PXP2_INT_MASK_0_REG_PGL_PCIE_ATTN
-				| PXP2_PXP2_INT_MASK_0_REG_PGL_READ_BLOCKED
-				| PXP2_PXP2_INT_MASK_0_REG_PGL_WRITE_BLOCKED));
-	else
-		REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, 0x480000);
+	val = PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_AFT  |
+		PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_OF |
+		PXP2_PXP2_INT_MASK_0_REG_PGL_PCIE_ATTN;
+	if (!CHIP_IS_E1x(bp))
+		val |= PXP2_PXP2_INT_MASK_0_REG_PGL_READ_BLOCKED |
+			PXP2_PXP2_INT_MASK_0_REG_PGL_WRITE_BLOCKED;
+	REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, val);
+
 	REG_WR(bp, TSDM_REG_TSDM_INT_MASK_0, 0);
 	REG_WR(bp, TSDM_REG_TSDM_INT_MASK_1, 0);
 	REG_WR(bp, TCM_REG_TCM_INT_MASK, 0);
-- 
1.7.1

[PATCH net-next 10/13] bnx2x: Handle a rarely missed interrupt

[Yuval Mintz]

From: Yaniv Rosner <yaniv.rosner@broadcom.com>

A rare case of no link due to a missed interrupt may occur due to a
race condition between acknowledging the IGU via the BAR and restoring the NIG
interrupt mask via the GRC.
To solve it, we wait for the IGU ack command to finish prior to restoring the
NIG interrupt mask.

Signed-off-by: Yaniv Rosner <yaniv.rosner@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h      |    1 +
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   15 +++++++++++++++
 2 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 03647bf..02ea644 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -915,6 +915,7 @@ struct bnx2x_common {
 #define BNX2X_IGU_STAS_MSG_VF_CNT 64
 #define BNX2X_IGU_STAS_MSG_PF_CNT 4
 
+#define MAX_IGU_ATTN_ACK_TO       100
 /* end of common */
 
 /* port */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 983a0c8..d76ca90 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -3588,6 +3588,21 @@ static void bnx2x_attn_int_asserted(struct bnx2x *bp, u32 asserted)
 
 	/* now set back the mask */
 	if (asserted & ATTN_NIG_FOR_FUNC) {
+		/* Verify that IGU ack through BAR was written before restoring
+		 * NIG mask. This loop should exit after 2-3 iterations max.
+		 */
+		if (bp->common.int_block != INT_BLOCK_HC) {
+			u32 cnt = 0, igu_acked;
+			do {
+				igu_acked = REG_RD(bp,
+						   IGU_REG_ATTENTION_ACK_BITS);
+			} while (((igu_acked & ATTN_NIG_FOR_FUNC) == 0) &&
+				 (++cnt < MAX_IGU_ATTN_ACK_TO));
+			if (!igu_acked)
+				DP(NETIF_MSG_HW,
+				   "Failed to verify IGU ack on time\n");
+			barrier();
+		}
 		REG_WR(bp, nig_int_mask_addr, nig_mask);
 		bnx2x_release_phy_lock(bp);
 	}
-- 
1.7.1

[PATCH net-next 11/13] bnx2x: prevent DCB if disabled in nvram

[Yuval Mintz]

From: Barak Witkowski <barak@broadcom.com>

Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c  |    5 +++++
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   11 +++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index c0d9b69..c8c0340 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -1904,6 +1904,11 @@ static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
 	struct bnx2x *bp = netdev_priv(netdev);
 	DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
 
+	if (state && ((bp->dcbx_enabled == BNX2X_DCBX_ENABLED_OFF) ||
+		      (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_INVALID))) {
+		DP(BNX2X_MSG_DCB, "Can not set dcbx to enabled while it is disabled in nvm\n");
+		return 1;
+	}
 	bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
 	return 0;
 }
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index d76ca90..ab65f34 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -11120,8 +11120,15 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp)
 	bp->timer.data = (unsigned long) bp;
 	bp->timer.function = bnx2x_timer;
 
-	bnx2x_dcbx_set_state(bp, true, BNX2X_DCBX_ENABLED_ON_NEG_ON);
-	bnx2x_dcbx_init_params(bp);
+	if (SHMEM2_HAS(bp, dcbx_lldp_params_offset) &&
+	    SHMEM2_HAS(bp, dcbx_lldp_dcbx_stat_offset) &&
+	    SHMEM2_RD(bp, dcbx_lldp_params_offset) &&
+	    SHMEM2_RD(bp, dcbx_lldp_dcbx_stat_offset)) {
+		bnx2x_dcbx_set_state(bp, true, BNX2X_DCBX_ENABLED_ON_NEG_ON);
+		bnx2x_dcbx_init_params(bp);
+	} else {
+		bnx2x_dcbx_set_state(bp, false, BNX2X_DCBX_ENABLED_OFF);
+	}
 
 	if (CHIP_IS_E1x(bp))
 		bp->cnic_base_cl_id = FP_SB_MAX_E1x;
-- 
1.7.1

[PATCH net-next 12/13] bnx2x: fix 'Ethtool -A' when autoneg

[Yuval Mintz]

When configuring pauses using 'ethtool -A', the requested values have
effect when used together with autoneg (up to this point, when configured
for autoneg, driver ignored requested pause configuration)

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h  |    2 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |   49 ++++++++++++----------
 2 files changed, 28 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index ad28074..32c3ab7 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -144,7 +144,7 @@ u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param);
  * @bp:		driver handle
  * @load_mode:	current mode
  */
-u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode);
+int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode);
 
 /**
  * bnx2x_link_set - configure hw according to link parameters structure.
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index ab65f34..c8ec3fc 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -2103,22 +2103,25 @@ void bnx2x_calc_fc_adv(struct bnx2x *bp)
 	}
 }
 
-u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode)
+static void bnx2x_set_requested_fc(struct bnx2x *bp)
 {
-	if (!BP_NOMCP(bp)) {
-		u8 rc;
-		int cfx_idx = bnx2x_get_link_cfg_idx(bp);
-		u16 req_line_speed = bp->link_params.req_line_speed[cfx_idx];
-		/*
-		 * Initialize link parameters structure variables
-		 * It is recommended to turn off RX FC for jumbo frames
-		 * for better performance
-		 */
-		if (CHIP_IS_E1x(bp) && (bp->dev->mtu > 5000))
-			bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_TX;
-		else
-			bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_BOTH;
+	/* Initialize link parameters structure variables
+	 * It is recommended to turn off RX FC for jumbo frames
+	 *  for better performance
+	 */
+	if (CHIP_IS_E1x(bp) && (bp->dev->mtu > 5000))
+		bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_TX;
+	else
+		bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_BOTH;
+}
 
+int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode)
+{
+	int rc, cfx_idx = bnx2x_get_link_cfg_idx(bp);
+	u16 req_line_speed = bp->link_params.req_line_speed[cfx_idx];
+
+	if (!BP_NOMCP(bp)) {
+		bnx2x_set_requested_fc(bp);
 		bnx2x_acquire_phy_lock(bp);
 
 		if (load_mode == LOAD_DIAG) {
@@ -2147,11 +2150,11 @@ u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode)
 
 		bnx2x_calc_fc_adv(bp);
 
-		if (CHIP_REV_IS_SLOW(bp) && bp->link_vars.link_up) {
+		if (bp->link_vars.link_up) {
 			bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
 			bnx2x_link_report(bp);
-		} else
-			queue_delayed_work(bnx2x_wq, &bp->period_task, 0);
+		}
+		queue_delayed_work(bnx2x_wq, &bp->period_task, 0);
 		bp->link_params.req_line_speed[cfx_idx] = req_line_speed;
 		return rc;
 	}
@@ -10315,11 +10318,13 @@ static void __devinit bnx2x_link_settings_requested(struct bnx2x *bp)
 
 		bp->link_params.req_flow_ctrl[idx] = (link_config &
 					 PORT_FEATURE_FLOW_CONTROL_MASK);
-		if ((bp->link_params.req_flow_ctrl[idx] ==
-		     BNX2X_FLOW_CTRL_AUTO) &&
-		    !(bp->port.supported[idx] & SUPPORTED_Autoneg)) {
-			bp->link_params.req_flow_ctrl[idx] =
-				BNX2X_FLOW_CTRL_NONE;
+		if (bp->link_params.req_flow_ctrl[idx] ==
+		    BNX2X_FLOW_CTRL_AUTO) {
+			if (!(bp->port.supported[idx] & SUPPORTED_Autoneg))
+				bp->link_params.req_flow_ctrl[idx] =
+							BNX2X_FLOW_CTRL_NONE;
+			else
+				bnx2x_set_requested_fc(bp);
 		}
 
 		BNX2X_DEV_INFO("req_line_speed %d  req_duplex %d req_flow_ctrl 0x%x advertising 0x%x\n",
-- 
1.7.1

[PATCH net-next 13/13] bnx2x: Correct PFC disablement

[Yuval Mintz]

From: Barak Witkowski <barak@broadcom.com>

bnx2x driver could only have enabled pfc via usage of dcbnl; now, it can
also correctly disable it.

Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index c8c0340..10bc093 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -2052,10 +2052,13 @@ static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
 	if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
 		return;
 
-	bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
 
-	if (setting)
+	if (setting) {
+		bp->dcbx_config_params.admin_pfc_bitmap |= (1 << prio);
 		bp->dcbx_config_params.admin_pfc_tx_enable = 1;
+	} else {
+		bp->dcbx_config_params.admin_pfc_bitmap &= ~(1 << prio);
+	}
 }
 
 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
-- 
1.7.1

Re: [PATCH net-next 00/13] bnx2x: net-next patch series

[David Miller]

From: "Yuval Mintz" <yuvalmin@broadcom.com>
Date: Sun, 2 Dec 2012 16:05:44 +0200

> Hi Dave,
> 
> This patch series contains several small changes to the bnx2x driver,
> including dcb changes, graceful error handling and benign error masking,
> and setting the driver's configuration according to management/nvram
> held values.
> 
> Please consider applying these patches to 'net-next'.

Series applied.