Merge branch 'bnxt_en-fixes'

Michael Chan says:

====================
bnxt_en: Bug fixes

This series includes 3 fixes related to devlink firmware and chip
versions.  The other 2 patches fix a UDP tunneling issue and an
error recovery issue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 72 insertions, 36 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index acaf1e0f049e..9b86516e59a1 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -2202,25 +2202,34 @@ static int bnxt_async_event_process(struct bnxt *bp,
 		if (!fw_health)
 			goto async_event_process_exit;
 
-		fw_health->enabled = EVENT_DATA1_RECOVERY_ENABLED(data1);
-		fw_health->master = EVENT_DATA1_RECOVERY_MASTER_FUNC(data1);
-		if (!fw_health->enabled) {
+		if (!EVENT_DATA1_RECOVERY_ENABLED(data1)) {
+			fw_health->enabled = false;
 			netif_info(bp, drv, bp->dev,
 				   "Error recovery info: error recovery[0]\n");
 			break;
 		}
+		fw_health->master = EVENT_DATA1_RECOVERY_MASTER_FUNC(data1);
 		fw_health->tmr_multiplier =
 			DIV_ROUND_UP(fw_health->polling_dsecs * HZ,
 				     bp->current_interval * 10);
 		fw_health->tmr_counter = fw_health->tmr_multiplier;
-		fw_health->last_fw_heartbeat =
-			bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
-		fw_health->last_fw_reset_cnt =
-			bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
+		if (!fw_health->enabled) {
+			fw_health->last_fw_heartbeat =
+				bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
+			fw_health->last_fw_reset_cnt =
+				bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
+		}
 		netif_info(bp, drv, bp->dev,
 			   "Error recovery info: error recovery[1], master[%d], reset count[%u], health status: 0x%x\n",
 			   fw_health->master, fw_health->last_fw_reset_cnt,
 			   bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG));
+		if (!fw_health->enabled) {
+			/* Make sure tmr_counter is set and visible to
+			 * bnxt_health_check() before setting enabled to true.
+			 */
+			smp_wmb();
+			fw_health->enabled = true;
+		}
 		goto async_event_process_exit;
 	}
 	case ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION:
@@ -4641,6 +4650,13 @@ static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type)
 	struct hwrm_tunnel_dst_port_free_input *req;
 	int rc;
 
+	if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN &&
+	    bp->vxlan_fw_dst_port_id == INVALID_HW_RING_ID)
+		return 0;
+	if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE &&
+	    bp->nge_fw_dst_port_id == INVALID_HW_RING_ID)
+		return 0;
+
 	rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_FREE);
 	if (rc)
 		return rc;
@@ -4650,10 +4666,12 @@ static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type)
 	switch (tunnel_type) {
 	case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN:
 		req->tunnel_dst_port_id = cpu_to_le16(bp->vxlan_fw_dst_port_id);
+		bp->vxlan_port = 0;
 		bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID;
 		break;
 	case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE:
 		req->tunnel_dst_port_id = cpu_to_le16(bp->nge_fw_dst_port_id);
+		bp->nge_port = 0;
 		bp->nge_fw_dst_port_id = INVALID_HW_RING_ID;
 		break;
 	default:
@@ -4691,10 +4709,12 @@ static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port,
 
 	switch (tunnel_type) {
 	case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN:
+		bp->vxlan_port = port;
 		bp->vxlan_fw_dst_port_id =
 			le16_to_cpu(resp->tunnel_dst_port_id);
 		break;
 	case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE:
+		bp->nge_port = port;
 		bp->nge_fw_dst_port_id = le16_to_cpu(resp->tunnel_dst_port_id);
 		break;
 	default:
@@ -8223,12 +8243,10 @@ static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags)
 
 static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp)
 {
-	if (bp->vxlan_fw_dst_port_id != INVALID_HW_RING_ID)
-		bnxt_hwrm_tunnel_dst_port_free(
-			bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
-	if (bp->nge_fw_dst_port_id != INVALID_HW_RING_ID)
-		bnxt_hwrm_tunnel_dst_port_free(
-			bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
+	bnxt_hwrm_tunnel_dst_port_free(bp,
+		TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
+	bnxt_hwrm_tunnel_dst_port_free(bp,
+		TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
 }
 
 static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa)
@@ -11249,6 +11267,8 @@ static void bnxt_fw_health_check(struct bnxt *bp)
 	if (!fw_health->enabled || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
 		return;
 
+	/* Make sure it is enabled before checking the tmr_counter. */
+	smp_rmb();
 	if (fw_health->tmr_counter) {
 		fw_health->tmr_counter--;
 		return;
@@ -12627,13 +12647,10 @@ static int bnxt_udp_tunnel_sync(struct net_device *netdev, unsigned int table)
 	unsigned int cmd;
 
 	udp_tunnel_nic_get_port(netdev, table, 0, &ti);
-	if (ti.type == UDP_TUNNEL_TYPE_VXLAN) {
-		bp->vxlan_port = ti.port;
+	if (ti.type == UDP_TUNNEL_TYPE_VXLAN)
 		cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN;
-	} else {
-		bp->nge_port = ti.port;
+	else
 		cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE;
-	}
 
 	if (ti.port)
 		return bnxt_hwrm_tunnel_dst_port_alloc(bp, ti.port, cmd);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 1423cc617d93..9576547df4ab 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -352,13 +352,16 @@ static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
 		dst->vu8 = (u8)val32;
 }
 
-static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp,
-				     union devlink_param_value *nvm_cfg_ver)
+static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver)
 {
 	struct hwrm_nvm_get_variable_input *req;
+	u16 bytes = BNXT_NVM_CFG_VER_BYTES;
+	u16 bits = BNXT_NVM_CFG_VER_BITS;
+	union devlink_param_value ver;
 	union bnxt_nvm_data *data;
 	dma_addr_t data_dma_addr;
-	int rc;
+	int rc, i = 2;
+	u16 dim = 1;
 
 	rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
 	if (rc)
@@ -370,16 +373,34 @@ static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp,
 		goto exit;
 	}
 
+	/* earlier devices present as an array of raw bytes */
+	if (!BNXT_CHIP_P5(bp)) {
+		dim = 0;
+		i = 0;
+		bits *= 3;  /* array of 3 version components */
+		bytes *= 4; /* copy whole word */
+	}
+
 	hwrm_req_hold(bp, req);
 	req->dest_data_addr = cpu_to_le64(data_dma_addr);
-	req->data_len = cpu_to_le16(BNXT_NVM_CFG_VER_BITS);
+	req->data_len = cpu_to_le16(bits);
 	req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
+	req->dimensions = cpu_to_le16(dim);
 
-	rc = hwrm_req_send_silent(bp, req);
-	if (!rc)
-		bnxt_copy_from_nvm_data(nvm_cfg_ver, data,
-					BNXT_NVM_CFG_VER_BITS,
-					BNXT_NVM_CFG_VER_BYTES);
+	while (i >= 0) {
+		req->index_0 = cpu_to_le16(i--);
+		rc = hwrm_req_send_silent(bp, req);
+		if (rc)
+			goto exit;
+		bnxt_copy_from_nvm_data(&ver, data, bits, bytes);
+
+		if (BNXT_CHIP_P5(bp)) {
+			*nvm_cfg_ver <<= 8;
+			*nvm_cfg_ver |= ver.vu8;
+		} else {
+			*nvm_cfg_ver = ver.vu32;
+		}
+	}
 
 exit:
 	hwrm_req_drop(bp, req);
@@ -416,12 +437,12 @@ static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
 {
 	struct hwrm_nvm_get_dev_info_output nvm_dev_info;
 	struct bnxt *bp = bnxt_get_bp_from_dl(dl);
-	union devlink_param_value nvm_cfg_ver;
 	struct hwrm_ver_get_output *ver_resp;
 	char mgmt_ver[FW_VER_STR_LEN];
 	char roce_ver[FW_VER_STR_LEN];
 	char ncsi_ver[FW_VER_STR_LEN];
 	char buf[32];
+	u32 ver = 0;
 	int rc;
 
 	rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME);
@@ -456,7 +477,7 @@ static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
 		return rc;
 
 	ver_resp = &bp->ver_resp;
-	sprintf(buf, "%X", ver_resp->chip_rev);
+	sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
 	rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
 			      DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
 	if (rc)
@@ -475,11 +496,9 @@ static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
 	if (rc)
 		return rc;
 
-	if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &nvm_cfg_ver)) {
-		u32 ver = nvm_cfg_ver.vu32;
-
-		sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xf, (ver >> 8) & 0xf,
-			ver & 0xf);
+	if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) {
+		sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
+			ver & 0xff);
 		rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
 				      DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
 				      buf);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
index d22cab5d6856..d889f240da2b 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
@@ -40,8 +40,8 @@ static inline void bnxt_link_bp_to_dl(struct bnxt *bp, struct devlink *dl)
 #define NVM_OFF_ENABLE_SRIOV		401
 #define NVM_OFF_NVM_CFG_VER		602
 
-#define BNXT_NVM_CFG_VER_BITS		24
-#define BNXT_NVM_CFG_VER_BYTES		4
+#define BNXT_NVM_CFG_VER_BITS		8
+#define BNXT_NVM_CFG_VER_BYTES		1
 
 #define BNXT_MSIX_VEC_MAX	512
 #define BNXT_MSIX_VEC_MIN_MAX	128