Merge branch 'bnxt_en-update-for-net-next'

Michael Chan says:

====================
bnxt_en: Update for net-next

This series adds better error and debug logging for firmware messages.
We now also use the firmware provided timeout value for long running
commands instead of capping it to 40 seconds.
====================

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -2086,6 +2086,9 @@ static int bnxt_async_event_process(struct bnxt *bp,
 	u32 data1 = le32_to_cpu(cmpl->event_data1);
 	u32 data2 = le32_to_cpu(cmpl->event_data2);
 
+	netdev_dbg(bp->dev, "hwrm event 0x%x {0x%x, 0x%x}\n",
+		   event_id, data1, data2);
+
 	/* TODO CHIMP_FW: Define event id's for link change, error etc */
 	switch (event_id) {
 	case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: {
@@ -7691,19 +7694,6 @@ static void __bnxt_map_fw_health_reg(struct bnxt *bp, u32 reg)
 					 BNXT_FW_HEALTH_WIN_MAP_OFF);
 }
 
-bool bnxt_is_fw_healthy(struct bnxt *bp)
-{
-	if (bp->fw_health && bp->fw_health->status_reliable) {
-		u32 fw_status;
-
-		fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
-		if (fw_status && !BNXT_FW_IS_HEALTHY(fw_status))
-			return false;
-	}
-
-	return true;
-}
-
 static void bnxt_inv_fw_health_reg(struct bnxt *bp)
 {
 	struct bnxt_fw_health *fw_health = bp->fw_health;
@@ -8031,6 +8021,12 @@ static int bnxt_hwrm_ver_get(struct bnxt *bp)
 	bp->hwrm_cmd_timeout = le16_to_cpu(resp->def_req_timeout);
 	if (!bp->hwrm_cmd_timeout)
 		bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT;
+	bp->hwrm_cmd_max_timeout = le16_to_cpu(resp->max_req_timeout) * 1000;
+	if (!bp->hwrm_cmd_max_timeout)
+		bp->hwrm_cmd_max_timeout = HWRM_CMD_MAX_TIMEOUT;
+	else if (bp->hwrm_cmd_max_timeout > HWRM_CMD_MAX_TIMEOUT)
+		netdev_warn(bp->dev, "Device requests max timeout of %d seconds, may trigger hung task watchdog\n",
+			    bp->hwrm_cmd_max_timeout / 1000);
 
 	if (resp->hwrm_intf_maj_8b >= 1) {
 		bp->hwrm_max_req_len = le16_to_cpu(resp->max_req_win_len);
@@ -8634,7 +8630,10 @@ static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init)
 	/* Filter for default vnic 0 */
 	rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr);
 	if (rc) {
-		netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc);
+		if (BNXT_VF(bp) && rc == -ENODEV)
+			netdev_err(bp->dev, "Cannot configure L2 filter while PF is unavailable\n");
+		else
+			netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc);
 		goto err_out;
 	}
 	vnic->uc_filter_count = 1;
@@ -9427,6 +9426,10 @@ int bnxt_update_link(struct bnxt *bp, bool chng_link_state)
 	rc = hwrm_req_send(bp, req);
 	if (rc) {
 		hwrm_req_drop(bp, req);
+		if (BNXT_VF(bp) && rc == -ENODEV) {
+			netdev_warn(bp->dev, "Cannot obtain link state while PF unavailable.\n");
+			rc = 0;
+		}
 		return rc;
 	}
 
@@ -10825,12 +10828,21 @@ static int bnxt_cfg_rx_mode(struct bnxt *bp)
 	for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) {
 		rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off);
 		if (rc) {
-			netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n",
-				   rc);
+			if (BNXT_VF(bp) && rc == -ENODEV) {
+				if (!test_and_set_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state))
+					netdev_warn(bp->dev, "Cannot configure L2 filters while PF is unavailable, will retry\n");
+				else
+					netdev_dbg(bp->dev, "PF still unavailable while configuring L2 filters.\n");
+				rc = 0;
+			} else {
+				netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc);
+			}
 			vnic->uc_filter_count = i;
 			return rc;
 		}
 	}
+	if (test_and_clear_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state))
+		netdev_notice(bp->dev, "Retry of L2 filter configuration successful.\n");
 
 skip_uc:
 	if ((vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS) &&
@@ -11395,6 +11407,11 @@ static void bnxt_timer(struct timer_list *t)
 		}
 	}
 
+	if (test_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state)) {
+		set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event);
+		bnxt_queue_sp_work(bp);
+	}
+
 	if ((bp->flags & BNXT_FLAG_CHIP_P5) && !bp->chip_rev &&
 	    netif_carrier_ok(dev)) {
 		set_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event);
@@ -13101,7 +13118,7 @@ static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh)
 	bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
 
 	rc = __bnxt_reserve_rings(bp);
-	if (rc)
+	if (rc && rc != -ENODEV)
 		netdev_warn(bp->dev, "Unable to reserve tx rings\n");
 	bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
 	if (sh)
@@ -13110,7 +13127,7 @@ static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh)
 	/* Rings may have been trimmed, re-reserve the trimmed rings. */
 	if (bnxt_need_reserve_rings(bp)) {
 		rc = __bnxt_reserve_rings(bp);
-		if (rc)
+		if (rc && rc != -ENODEV)
 			netdev_warn(bp->dev, "2nd rings reservation failed.\n");
 		bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
 	}
@@ -13136,7 +13153,10 @@ static int bnxt_init_dflt_ring_mode(struct bnxt *bp)
 	bnxt_clear_int_mode(bp);
 	rc = bnxt_set_dflt_rings(bp, true);
 	if (rc) {
-		netdev_err(bp->dev, "Not enough rings available.\n");
+		if (BNXT_VF(bp) && rc == -ENODEV)
+			netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n");
+		else
+			netdev_err(bp->dev, "Not enough rings available.\n");
 		goto init_dflt_ring_err;
 	}
 	rc = bnxt_init_int_mode(bp);
@@ -13424,8 +13444,12 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	bnxt_set_ring_params(bp);
 	rc = bnxt_set_dflt_rings(bp, true);
 	if (rc) {
-		netdev_err(bp->dev, "Not enough rings available.\n");
-		rc = -ENOMEM;
+		if (BNXT_VF(bp) && rc == -ENODEV) {
+			netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n");
+		} else {
+			netdev_err(bp->dev, "Not enough rings available.\n");
+			rc = -ENOMEM;
+		}
 		goto init_err_pci_clean;
 	}
 

drivers/net/ethernet/broadcom/bnxt/bnxt.h

@@ -1916,6 +1916,7 @@ struct bnxt {
 #define BNXT_STATE_DRV_REGISTERED	7
 #define BNXT_STATE_PCI_CHANNEL_IO_FROZEN	8
 #define BNXT_STATE_NAPI_DISABLED	9
+#define BNXT_STATE_L2_FILTER_RETRY	10
 #define BNXT_STATE_FW_ACTIVATE		11
 #define BNXT_STATE_RECOVER		12
 #define BNXT_STATE_FW_NON_FATAL_COND	13
@@ -1986,7 +1987,8 @@ struct bnxt {
 
 	u16			hwrm_max_req_len;
 	u16			hwrm_max_ext_req_len;
-	int			hwrm_cmd_timeout;
+	unsigned int		hwrm_cmd_timeout;
+	unsigned int		hwrm_cmd_max_timeout;
 	struct mutex		hwrm_cmd_lock;	/* serialize hwrm messages */
 	struct hwrm_ver_get_output	ver_resp;
 #define FW_VER_STR_LEN		32
@@ -2303,7 +2305,6 @@ int bnxt_cancel_reservations(struct bnxt *bp, bool fw_reset);
 int bnxt_hwrm_alloc_wol_fltr(struct bnxt *bp);
 int bnxt_hwrm_free_wol_fltr(struct bnxt *bp);
 int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp, bool all);
-bool bnxt_is_fw_healthy(struct bnxt *bp);
 int bnxt_hwrm_fw_set_time(struct bnxt *);
 int bnxt_open_nic(struct bnxt *, bool, bool);
 int bnxt_half_open_nic(struct bnxt *bp);

drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c

@@ -32,7 +32,7 @@ static int bnxt_hwrm_dbg_dma_data(struct bnxt *bp, void *msg,
 		return -ENOMEM;
 	}
 
-	hwrm_req_timeout(bp, msg, HWRM_COREDUMP_TIMEOUT);
+	hwrm_req_timeout(bp, msg, bp->hwrm_cmd_max_timeout);
 	cmn_resp = hwrm_req_hold(bp, msg);
 	resp = cmn_resp;
 
@@ -125,7 +125,7 @@ static int bnxt_hwrm_dbg_coredump_initiate(struct bnxt *bp, u16 component_id,
 	if (rc)
 		return rc;
 
-	hwrm_req_timeout(bp, req, HWRM_COREDUMP_TIMEOUT);
+	hwrm_req_timeout(bp, req, bp->hwrm_cmd_max_timeout);
 	req->component_id = cpu_to_le16(component_id);
 	req->segment_id = cpu_to_le16(segment_id);
 

drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c

@@ -31,9 +31,6 @@
 #include "bnxt_nvm_defs.h"	/* NVRAM content constant and structure defs */
 #include "bnxt_fw_hdr.h"	/* Firmware hdr constant and structure defs */
 #include "bnxt_coredump.h"
-#define FLASH_NVRAM_TIMEOUT	((HWRM_CMD_TIMEOUT) * 100)
-#define FLASH_PACKAGE_TIMEOUT	((HWRM_CMD_TIMEOUT) * 200)
-#define INSTALL_PACKAGE_TIMEOUT	((HWRM_CMD_TIMEOUT) * 200)
 
 static u32 bnxt_get_msglevel(struct net_device *dev)
 {
@@ -2194,7 +2191,7 @@ static int bnxt_flash_nvram(struct net_device *dev, u16 dir_type,
 		req->host_src_addr = cpu_to_le64(dma_handle);
 	}
 
-	hwrm_req_timeout(bp, req, FLASH_NVRAM_TIMEOUT);
+	hwrm_req_timeout(bp, req, bp->hwrm_cmd_max_timeout);
 	req->dir_type = cpu_to_le16(dir_type);
 	req->dir_ordinal = cpu_to_le16(dir_ordinal);
 	req->dir_ext = cpu_to_le16(dir_ext);
@@ -2540,8 +2537,8 @@ int bnxt_flash_package_from_fw_obj(struct net_device *dev, const struct firmware
 		return rc;
 	}
 
-	hwrm_req_timeout(bp, modify, FLASH_PACKAGE_TIMEOUT);
-	hwrm_req_timeout(bp, install, INSTALL_PACKAGE_TIMEOUT);
+	hwrm_req_timeout(bp, modify, bp->hwrm_cmd_max_timeout);
+	hwrm_req_timeout(bp, install, bp->hwrm_cmd_max_timeout);
 
 	hwrm_req_hold(bp, modify);
 	modify->host_src_addr = cpu_to_le64(dma_handle);