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

Michael Chan says:

====================
bnxt_en: Fixes for net-next.

This series includes a bug fix for a regression in firmware message polling
introduced recently on net-next. There are 3 additional minor fixes for
unsupported link speed checking, VF MAC address handling, and setting
PHY eeprom length.
====================

Signed-off-by: David S. Miller <[e-mail]>

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

···
 		      HWRM_RESP_LEN_SFT;
 		valid = bp->hwrm_cmd_resp_addr + len - 1;
 	} else {
+		int j;
+
 		/* Check if response len is updated */
 		for (i = 0; i < tmo_count; i++) {
 			len = (le32_to_cpu(*resp_len) & HWRM_RESP_LEN_MASK) >>
···
 
 		if (i >= tmo_count) {
 			netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d\n",
-				   timeout, le16_to_cpu(req->req_type),
+				   HWRM_TOTAL_TIMEOUT(i),
+				   le16_to_cpu(req->req_type),
 				   le16_to_cpu(req->seq_id), len);
 			return -1;
 		}
 
 		/* Last byte of resp contains valid bit */
 		valid = bp->hwrm_cmd_resp_addr + len - 1;
-		for (i = 0; i < 5; i++) {
+		for (j = 0; j < HWRM_VALID_BIT_DELAY_USEC; j++) {
 			/* make sure we read from updated DMA memory */
 			dma_rmb();
 			if (*valid)
···
 			udelay(1);
 		}
 
-		if (i >= 5) {
+		if (j >= HWRM_VALID_BIT_DELAY_USEC) {
 			netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d v:%d\n",
-				   timeout, le16_to_cpu(req->req_type),
+				   HWRM_TOTAL_TIMEOUT(i),
+				   le16_to_cpu(req->req_type),
 				   le16_to_cpu(req->seq_id), len, *valid);
 			return -1;
 		}
···
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
 
+	if (!BNXT_SINGLE_PF(bp))
+		return 0;
+
 	diff = link_info->support_auto_speeds ^ link_info->advertising;
 	if ((link_info->support_auto_speeds | diff) !=
 	    link_info->support_auto_speeds) {
···
 			memcpy(bp->dev->dev_addr, vf->mac_addr, ETH_ALEN);
 		} else {
 			eth_hw_addr_random(bp->dev);
-			rc = bnxt_approve_mac(bp, bp->dev->dev_addr);
 		}
+		rc = bnxt_approve_mac(bp, bp->dev->dev_addr);
 #endif
 	}
 	return rc;

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

···
 #define HWRM_MIN_TIMEOUT		25
 #define HWRM_MAX_TIMEOUT		40
 
+#define HWRM_TOTAL_TIMEOUT(n)	(((n) <= HWRM_SHORT_TIMEOUT_COUNTER) ?	\
+	((n) * HWRM_SHORT_MIN_TIMEOUT) :				\
+	(HWRM_SHORT_TIMEOUT_COUNTER * HWRM_SHORT_MIN_TIMEOUT +		\
+	 ((n) - HWRM_SHORT_TIMEOUT_COUNTER) * HWRM_MIN_TIMEOUT))
+
+#define HWRM_VALID_BIT_DELAY_USEC	20
+
 #define BNXT_RX_EVENT	1
 #define BNXT_AGG_EVENT	2
 #define BNXT_TX_EVENT	4
···
 
 #define I2C_DEV_ADDR_A0				0xa0
 #define I2C_DEV_ADDR_A2				0xa2
-#define SFP_EEPROM_SFF_8472_COMP_ADDR		0x5e
-#define SFP_EEPROM_SFF_8472_COMP_SIZE		1
+#define SFF_DIAG_SUPPORT_OFFSET			0x5c
 #define SFF_MODULE_ID_SFP			0x3
 #define SFF_MODULE_ID_QSFP			0xc
 #define SFF_MODULE_ID_QSFP_PLUS			0xd

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

···
 static int bnxt_get_module_info(struct net_device *dev,
 				struct ethtool_modinfo *modinfo)
 {
+	u8 data[SFF_DIAG_SUPPORT_OFFSET + 1];
 	struct bnxt *bp = netdev_priv(dev);
-	struct hwrm_port_phy_i2c_read_input req = {0};
-	struct hwrm_port_phy_i2c_read_output *output = bp->hwrm_cmd_resp_addr;
 	int rc;
 
 	/* No point in going further if phy status indicates
···
 	if (bp->hwrm_spec_code < 0x10202)
 		return -EOPNOTSUPP;
 
-	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_I2C_READ, -1, -1);
-	req.i2c_slave_addr = I2C_DEV_ADDR_A0;
-	req.page_number = 0;
-	req.page_offset = cpu_to_le16(SFP_EEPROM_SFF_8472_COMP_ADDR);
-	req.data_length = SFP_EEPROM_SFF_8472_COMP_SIZE;
-	req.port_id = cpu_to_le16(bp->pf.port_id);
-	mutex_lock(&bp->hwrm_cmd_lock);
-	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+	rc = bnxt_read_sfp_module_eeprom_info(bp, I2C_DEV_ADDR_A0, 0, 0,
+					      SFF_DIAG_SUPPORT_OFFSET + 1,
+					      data);
 	if (!rc) {
-		u32 module_id = le32_to_cpu(output->data[0]);
+		u8 module_id = data[0];
+		u8 diag_supported = data[SFF_DIAG_SUPPORT_OFFSET];
 
 		switch (module_id) {
 		case SFF_MODULE_ID_SFP:
 			modinfo->type = ETH_MODULE_SFF_8472;
 			modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
+			if (!diag_supported)
+				modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
 			break;
 		case SFF_MODULE_ID_QSFP:
 		case SFF_MODULE_ID_QSFP_PLUS:
···
 			break;
 		}
 	}
-	mutex_unlock(&bp->hwrm_cmd_lock);
 	return rc;
 }
 

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

···
 	if (req->enables & cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_DFLT_MAC_ADDR)) {
 		if (is_valid_ether_addr(req->dflt_mac_addr) &&
 		    ((vf->flags & BNXT_VF_TRUST) ||
-		     (!is_valid_ether_addr(vf->mac_addr)))) {
+		     !is_valid_ether_addr(vf->mac_addr) ||
+		     ether_addr_equal(req->dflt_mac_addr, vf->mac_addr))) {
 			ether_addr_copy(vf->vf_mac_addr, req->dflt_mac_addr);
 			return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);
 		}