Merge branch 'be2net-next'

Sathya Perla says:

====================
be2net: patch set

Patches 1 to 6 address issues with return values of some ndo/ethtool
driver methods. In error scenarios, either an inappropriate error or
a +ve return value (where the stack expects a -ve value) was being returned.

Patch 7 updates description strings for certain UE bits.

Patch 8 cleans up (reduces) argument passing for a few routines in be_cmds.c.

Patch 9 removes some unused code (unused definitions.)

Patch 10 updates NULL check in the driver to a consistent "if (!foo)" style.

Patchs 11 to 13 fix a few minor issues with the earlier patch bec84e6b
("create optimal number of queues on SR-IOV config"):
	- patch 11 fixes BEx_get_resources() code to use be_max_vfs() macro
	- patch 12 skips SR-IOV config code for BE2 that doesn't support SRIOV
	- patch 13 uses adapter->flags to track SRIOV enabled state

Patch 14 updates the driver version.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/emulex/benet/be.h

@@ -34,7 +34,7 @@
 #include "be_hw.h"
 #include "be_roce.h"
 
-#define DRV_VER			"10.2u"
+#define DRV_VER			"10.4u"
 #define DRV_NAME		"be2net"
 #define BE_NAME			"Emulex BladeEngine2"
 #define BE3_NAME		"Emulex BladeEngine3"
@@ -372,6 +372,7 @@ enum vf_state {
 };
 
 #define BE_FLAGS_LINK_STATUS_INIT		1
+#define BE_FLAGS_SRIOV_ENABLED			(1 << 2)
 #define BE_FLAGS_WORKER_SCHEDULED		(1 << 3)
 #define BE_FLAGS_VLAN_PROMISC			(1 << 4)
 #define BE_FLAGS_MCAST_PROMISC			(1 << 5)
@@ -525,7 +526,8 @@ struct be_adapter {
 
 #define be_physfn(adapter)		(!adapter->virtfn)
 #define be_virtfn(adapter)		(adapter->virtfn)
-#define sriov_enabled(adapter)		(adapter->num_vfs > 0)
+#define sriov_enabled(adapter)		(adapter->flags &	\
+					 BE_FLAGS_SRIOV_ENABLED)
 
 #define for_all_vfs(adapter, vf_cfg, i)					\
 	for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs;	\
@@ -672,6 +674,8 @@ static inline void swap_dws(void *wrb, int len)
 #endif				/* __BIG_ENDIAN */
 }
 
+#define be_cmd_status(status)		(status > 0 ? -EIO : status)
+
 static inline u8 is_tcp_pkt(struct sk_buff *skb)
 {
 	u8 val = 0;

drivers/net/ethernet/emulex/benet/be_cmds.c

@@ -1749,8 +1749,7 @@ void be_cmd_get_regs(struct be_adapter *adapter, u32 buf_len, void *buf)
 }
 
 /* Uses synchronous mcc */
-int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver,
-		      char *fw_on_flash)
+int be_cmd_get_fw_ver(struct be_adapter *adapter)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_get_fw_version *req;
@@ -1772,9 +1771,8 @@ int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver,
 	status = be_mcc_notify_wait(adapter);
 	if (!status) {
 		struct be_cmd_resp_get_fw_version *resp = embedded_payload(wrb);
-		strcpy(fw_ver, resp->firmware_version_string);
-		if (fw_on_flash)
-			strcpy(fw_on_flash, resp->fw_on_flash_version_string);
+		strcpy(adapter->fw_ver, resp->firmware_version_string);
+		strcpy(adapter->fw_on_flash, resp->fw_on_flash_version_string);
 	}
 err:
 	spin_unlock_bh(&adapter->mcc_lock);
@@ -1997,8 +1995,7 @@ int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc)
 }
 
 /* Uses mbox */
-int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num,
-			u32 *mode, u32 *caps, u16 *asic_rev)
+int be_cmd_query_fw_cfg(struct be_adapter *adapter)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_query_fw_cfg *req;
@@ -2017,10 +2014,10 @@ int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num,
 	status = be_mbox_notify_wait(adapter);
 	if (!status) {
 		struct be_cmd_resp_query_fw_cfg *resp = embedded_payload(wrb);
-		*port_num = le32_to_cpu(resp->phys_port);
-		*mode = le32_to_cpu(resp->function_mode);
-		*caps = le32_to_cpu(resp->function_caps);
-		*asic_rev = le32_to_cpu(resp->asic_revision) & 0xFF;
+		adapter->port_num = le32_to_cpu(resp->phys_port);
+		adapter->function_mode = le32_to_cpu(resp->function_mode);
+		adapter->function_caps = le32_to_cpu(resp->function_caps);
+		adapter->asic_rev = le32_to_cpu(resp->asic_revision) & 0xFF;
 	}
 
 	mutex_unlock(&adapter->mbox_lock);
@@ -2224,7 +2221,7 @@ int lancer_cmd_write_object(struct be_adapter *adapter, struct be_dma_mem *cmd,
 
 	if (!wait_for_completion_timeout(&adapter->et_cmd_compl,
 					 msecs_to_jiffies(60000)))
-		status = -1;
+		status = -ETIMEDOUT;
 	else
 		status = adapter->flash_status;
 
@@ -2320,7 +2317,7 @@ int be_cmd_write_flashrom(struct be_adapter *adapter, struct be_dma_mem *cmd,
 
 	if (!wait_for_completion_timeout(&adapter->et_cmd_compl,
 					 msecs_to_jiffies(40000)))
-		status = -1;
+		status = -ETIMEDOUT;
 	else
 		status = adapter->flash_status;
 

drivers/net/ethernet/emulex/benet/be_cmds.h

@@ -1081,11 +1081,6 @@ struct be_cmd_req_modify_eq_delay {
 	struct be_set_eqd set_eqd[MAX_EVT_QS];
 } __packed;
 
-struct be_cmd_resp_modify_eq_delay {
-	struct be_cmd_resp_hdr hdr;
-	u32 rsvd0;
-} __packed;
-
 /******************** Get FW Config *******************/
 /* The HW can come up in either of the following multi-channel modes
  * based on the skew/IPL.
@@ -1156,11 +1151,6 @@ struct be_cmd_req_enable_disable_beacon {
 	u8  status_duration;
 } __packed;
 
-struct be_cmd_resp_enable_disable_beacon {
-	struct be_cmd_resp_hdr resp_hdr;
-	u32 rsvd0;
-} __packed;
-
 struct be_cmd_req_get_beacon_state {
 	struct be_cmd_req_hdr hdr;
 	u8  port_num;
@@ -1326,11 +1316,6 @@ struct be_cmd_req_set_lmode {
 	u8 loopback_state;
 };
 
-struct be_cmd_resp_set_lmode {
-	struct be_cmd_resp_hdr resp_hdr;
-	u8 rsvd0[4];
-};
-
 /********************** DDR DMA test *********************/
 struct be_cmd_req_ddrdma_test {
 	struct be_cmd_req_hdr hdr;
@@ -1434,11 +1419,6 @@ struct be_cmd_req_set_qos {
 	u32 rsvd[7];
 };
 
-struct be_cmd_resp_set_qos {
-	struct be_cmd_resp_hdr hdr;
-	u32 rsvd;
-};
-
 /*********************** Controller Attributes ***********************/
 struct be_cmd_req_cntl_attribs {
 	struct be_cmd_req_hdr hdr;
@@ -1572,11 +1552,6 @@ struct be_cmd_req_set_hsw_config {
 	u8 context[sizeof(struct amap_set_hsw_context) / 8];
 } __packed;
 
-struct be_cmd_resp_set_hsw_config {
-	struct be_cmd_resp_hdr hdr;
-	u32 rsvd;
-};
-
 struct amap_get_hsw_req_context {
 	u8 interface_id[16];
 	u8 rsvd0[14];
@@ -1966,10 +1941,6 @@ struct be_cmd_req_set_profile_config {
 	u8 desc[2 * RESOURCE_DESC_SIZE_V1];
 } __packed;
 
-struct be_cmd_resp_set_profile_config {
-	struct be_cmd_resp_hdr hdr;
-};
-
 struct be_cmd_req_get_active_profile {
 	struct be_cmd_req_hdr hdr;
 	u32 rsvd;
@@ -2071,16 +2042,14 @@ int be_cmd_reset(struct be_adapter *adapter);
 int be_cmd_get_stats(struct be_adapter *adapter, struct be_dma_mem *nonemb_cmd);
 int lancer_cmd_get_pport_stats(struct be_adapter *adapter,
 			       struct be_dma_mem *nonemb_cmd);
-int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver,
-		      char *fw_on_flash);
+int be_cmd_get_fw_ver(struct be_adapter *adapter);
 int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *, int num);
 int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
 		       u32 num);
 int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 status);
 int be_cmd_set_flow_control(struct be_adapter *adapter, u32 tx_fc, u32 rx_fc);
 int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc);
-int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num,
-			u32 *function_mode, u32 *function_caps, u16 *asic_rev);
+int be_cmd_query_fw_cfg(struct be_adapter *adapter);
 int be_cmd_reset_function(struct be_adapter *adapter);
 int be_cmd_rss_config(struct be_adapter *adapter, u8 *rsstable,
 		      u32 rss_hash_opts, u16 table_size, const u8 *rss_hkey);

drivers/net/ethernet/emulex/benet/be_ethtool.c

@@ -643,7 +643,7 @@ be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
 	if (status)
 		dev_warn(&adapter->pdev->dev, "Pause param set failed.\n");
 
-	return status;
+	return be_cmd_status(status);
 }
 
 static int be_set_phys_id(struct net_device *netdev,
@@ -762,7 +762,7 @@ static int be_test_ddr_dma(struct be_adapter *adapter)
 err:
 	dma_free_coherent(&adapter->pdev->dev, ddrdma_cmd.size, ddrdma_cmd.va,
 			  ddrdma_cmd.dma);
-	return ret;
+	return be_cmd_status(ret);
 }
 
 static u64 be_loopback_test(struct be_adapter *adapter, u8 loopback_type,
@@ -885,7 +885,7 @@ static int be_read_eeprom(struct net_device *netdev,
 	dma_free_coherent(&adapter->pdev->dev, eeprom_cmd.size, eeprom_cmd.va,
 			  eeprom_cmd.dma);
 
-	return status;
+	return be_cmd_status(status);
 }
 
 static u32 be_get_msg_level(struct net_device *netdev)
@@ -1042,7 +1042,7 @@ static int be_set_rss_hash_opts(struct be_adapter *adapter,
 	if (!status)
 		adapter->rss_info.rss_flags = rss_flags;
 
-	return status;
+	return be_cmd_status(status);
 }
 
 static int be_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
@@ -1080,6 +1080,7 @@ static int be_set_channels(struct net_device  *netdev,
 			   struct ethtool_channels *ch)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
+	int status;
 
 	if (ch->rx_count || ch->tx_count || ch->other_count ||
 	    !ch->combined_count || ch->combined_count > be_max_qs(adapter))
@@ -1087,7 +1088,8 @@ static int be_set_channels(struct net_device  *netdev,
 
 	adapter->cfg_num_qs = ch->combined_count;
 
-	return be_update_queues(adapter);
+	status = be_update_queues(adapter);
+	return be_cmd_status(status);
 }
 
 static u32 be_get_rxfh_indir_size(struct net_device *netdev)

drivers/net/ethernet/emulex/benet/be_main.c

@@ -81,10 +81,10 @@ static const char * const ue_status_low_desc[] = {
 	"P1_OB_LINK ",
 	"HOST_GPIO ",
 	"MBOX ",
-	"AXGMAC0",
-	"AXGMAC1",
-	"JTAG",
-	"MPU_INTPEND"
+	"ERX2 ",
+	"SPARE ",
+	"JTAG ",
+	"MPU_INTPEND "
 };
 /* UE Status High CSR */
 static const char * const ue_status_hi_desc[] = {
@@ -109,16 +109,16 @@ static const char * const ue_status_hi_desc[] = {
 	"HOST5",
 	"HOST6",
 	"HOST7",
-	"HOST8",
-	"HOST9",
+	"ECRC",
+	"Poison TLP",
 	"NETC",
-	"Unknown",
-	"Unknown",
-	"Unknown",
-	"Unknown",
-	"Unknown",
-	"Unknown",
-	"Unknown",
+	"PERIPH",
+	"LLTXULP",
+	"D2P",
+	"RCON",
+	"LDMA",
+	"LLTXP",
+	"LLTXPB",
 	"Unknown"
 };
 
@@ -1281,13 +1281,15 @@ static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
 					vf + 1);
 	}
 
-	if (status)
-		dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
-			mac, vf);
-	else
-		memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
+	if (status) {
+		dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed: %#x",
+			mac, vf, status);
+		return be_cmd_status(status);
+	}
 
-	return status;
+	ether_addr_copy(vf_cfg->mac_addr, mac);
+
+	return 0;
 }
 
 static int be_get_vf_config(struct net_device *netdev, int vf,
@@ -1336,12 +1338,16 @@ static int be_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
 					       vf + 1, vf_cfg->if_handle, 0);
 	}
 
-	if (!status)
-		vf_cfg->vlan_tag = vlan;
-	else
-		dev_info(&adapter->pdev->dev,
-			 "VLAN %d config on VF %d failed\n", vlan, vf);
-	return status;
+	if (status) {
+		dev_err(&adapter->pdev->dev,
+			"VLAN %d config on VF %d failed : %#x\n", vlan,
+			vf, status);
+		return be_cmd_status(status);
+	}
+
+	vf_cfg->vlan_tag = vlan;
+
+	return 0;
 }
 
 static int be_set_vf_tx_rate(struct net_device *netdev, int vf,
@@ -1372,7 +1378,7 @@ static int be_set_vf_tx_rate(struct net_device *netdev, int vf,
 
 	if (!link_status) {
 		dev_err(dev, "TX-rate setting not allowed when link is down\n");
-		status = -EPERM;
+		status = -ENETDOWN;
 		goto err;
 	}
 
@@ -1403,7 +1409,7 @@ static int be_set_vf_tx_rate(struct net_device *netdev, int vf,
 err:
 	dev_err(dev, "TX-rate setting of %dMbps on VF%d failed\n",
 		max_tx_rate, vf);
-	return status;
+	return be_cmd_status(status);
 }
 static int be_set_vf_link_state(struct net_device *netdev, int vf,
 				int link_state)
@@ -1418,10 +1424,15 @@ static int be_set_vf_link_state(struct net_device *netdev, int vf,
 		return -EINVAL;
 
 	status = be_cmd_set_logical_link_config(adapter, link_state, vf+1);
-	if (!status)
-		adapter->vf_cfg[vf].plink_tracking = link_state;
+	if (status) {
+		dev_err(&adapter->pdev->dev,
+			"Link state change on VF %d failed: %#x\n", vf, status);
+		return be_cmd_status(status);
+	}
 
-	return status;
+	adapter->vf_cfg[vf].plink_tracking = link_state;
+
+	return 0;
 }
 
 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
@@ -2023,7 +2034,7 @@ static void be_rx_cq_clean(struct be_rx_obj *rxo)
 	 */
 	for (;;) {
 		rxcp = be_rx_compl_get(rxo);
-		if (rxcp == NULL) {
+		if (!rxcp) {
 			if (lancer_chip(adapter))
 				break;
 
@@ -2930,8 +2941,8 @@ static int be_setup_wol(struct be_adapter *adapter, bool enable)
 	cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
 	cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
 				     GFP_KERNEL);
-	if (cmd.va == NULL)
-		return -1;
+	if (!cmd.va)
+		return -ENOMEM;
 
 	if (enable) {
 		status = pci_write_config_dword(adapter->pdev,
@@ -3038,6 +3049,7 @@ static void be_vf_clear(struct be_adapter *adapter)
 done:
 	kfree(adapter->vf_cfg);
 	adapter->num_vfs = 0;
+	adapter->flags &= ~BE_FLAGS_SRIOV_ENABLED;
 }
 
 static void be_clear_queues(struct be_adapter *adapter)
@@ -3230,6 +3242,8 @@ static int be_vf_setup(struct be_adapter *adapter)
 			goto err;
 		}
 	}
+
+	adapter->flags |= BE_FLAGS_SRIOV_ENABLED;
 	return 0;
 err:
 	dev_err(dev, "VF setup failed\n");
@@ -3301,7 +3315,7 @@ static void BEx_get_resources(struct be_adapter *adapter,
 	res->max_rx_qs = res->max_rss_qs + 1;
 
 	if (be_physfn(adapter))
-		res->max_evt_qs = (res->max_vfs > 0) ?
+		res->max_evt_qs = (be_max_vfs(adapter) > 0) ?
 					BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
 	else
 		res->max_evt_qs = 1;
@@ -3414,10 +3428,7 @@ static int be_get_config(struct be_adapter *adapter)
 	u16 profile_id;
 	int status;
 
-	status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
-				     &adapter->function_mode,
-				     &adapter->function_caps,
-				     &adapter->asic_rev);
+	status = be_cmd_query_fw_cfg(adapter);
 	if (status)
 		return status;
 
@@ -3426,7 +3437,9 @@ static int be_get_config(struct be_adapter *adapter)
 		if (!status)
 			dev_info(&adapter->pdev->dev,
 				 "Using profile 0x%x\n", profile_id);
+	}
 
+	if (!BE2_chip(adapter) && be_physfn(adapter)) {
 		status = be_get_sriov_config(adapter);
 		if (status)
 			return status;
@@ -3606,7 +3619,7 @@ static int be_setup(struct be_adapter *adapter)
 	if (status)
 		goto err;
 
-	be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
+	be_cmd_get_fw_ver(adapter);
 
 	if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
 		dev_err(dev, "Firmware on card is old(%s), IRQs may not work.",
@@ -3956,7 +3969,7 @@ static int be_flash_skyhawk(struct be_adapter *adapter,
 	fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
 	if (!fsec) {
 		dev_err(dev, "Invalid Cookie. FW image may be corrupted\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
@@ -4125,7 +4138,7 @@ static int lancer_fw_download(struct be_adapter *adapter,
 static int be_get_ufi_type(struct be_adapter *adapter,
 			   struct flash_file_hdr_g3 *fhdr)
 {
-	if (fhdr == NULL)
+	if (!fhdr)
 		goto be_get_ufi_exit;
 
 	if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
@@ -4187,7 +4200,7 @@ static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
 							      &flash_cmd,
 							      num_imgs);
 				else {
-					status = -1;
+					status = -EINVAL;
 					dev_err(&adapter->pdev->dev,
 						"Can't load BE3 UFI on BE3R\n");
 				}
@@ -4198,7 +4211,7 @@ static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
 	if (ufi_type == UFI_TYPE2)
 		status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
 	else if (ufi_type == -1)
-		status = -1;
+		status = -EINVAL;
 
 	dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
 			  flash_cmd.dma);
@@ -4221,7 +4234,7 @@ int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
 	if (!netif_running(adapter->netdev)) {
 		dev_err(&adapter->pdev->dev,
 			"Firmware load not allowed (interface is down)\n");
-		return -1;
+		return -ENETDOWN;
 	}
 
 	status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
@@ -4236,8 +4249,7 @@ int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
 		status = be_fw_download(adapter, fw);
 
 	if (!status)
-		be_cmd_get_fw_ver(adapter, adapter->fw_ver,
-				  adapter->fw_on_flash);
+		be_cmd_get_fw_ver(adapter);
 
 fw_exit:
 	release_firmware(fw);
@@ -4468,12 +4480,12 @@ static int be_map_pci_bars(struct be_adapter *adapter)
 
 	if (BEx_chip(adapter) && be_physfn(adapter)) {
 		adapter->csr = pci_iomap(adapter->pdev, 2, 0);
-		if (adapter->csr == NULL)
+		if (!adapter->csr)
 			return -ENOMEM;
 	}
 
 	addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
-	if (addr == NULL)
+	if (!addr)
 		goto pci_map_err;
 	adapter->db = addr;
 
@@ -4536,7 +4548,7 @@ static int be_ctrl_init(struct be_adapter *adapter)
 	rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
 					    rx_filter->size, &rx_filter->dma,
 					    GFP_KERNEL);
-	if (rx_filter->va == NULL) {
+	if (!rx_filter->va) {
 		status = -ENOMEM;
 		goto free_mbox;
 	}
@@ -4585,8 +4597,8 @@ static int be_stats_init(struct be_adapter *adapter)
 
 	cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
 				      GFP_KERNEL);
-	if (cmd->va == NULL)
-		return -1;
+	if (!cmd->va)
+		return -ENOMEM;
 	return 0;
 }
 
@@ -4807,7 +4819,7 @@ static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
 	pci_set_master(pdev);
 
 	netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
-	if (netdev == NULL) {
+	if (!netdev) {
 		status = -ENOMEM;
 		goto rel_reg;
 	}