Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
100GbE Intel Wired LAN Driver Updates 2019-05-23

This series contains updates to ice driver only.

Anirudh cleans up white space issues and other code formatting issues in the
driver.  Also implemented LLDP persistence across reboots and start/stop of the
LLDP agent.  Updated print statements for driver capabilities to include
if it is a device or function capability.

Bruce cleaned up variable declarations by removing unneeded assignment.

Dave fixes a potential hang due to a couple of flows that recursively
acquire the RTNL lock which results in a deadlock.

Tony updates the driver to advertise what link modes we are capable of
when the user does not request a specific link mode.

Usha fixes up the LLDP MIB change event handling by cleaning up
workarounds and print the DCB configuration changes detected.

Brett fixes the driver to handle failures in the VF reset path, which
was failing to free resources upon an error.

Richard fixed the reported of stats via ethtool to align with our other
Intel drivers.

Jesse optimizes the transmit buffer and ring structures to have more
efficient ordering to get hot cache lines to have packed data.  Also
optimized the VF structure to use less memory, since it is used hundreds
of times throughout the driver.
====================

Signed-off-by: David S. Miller <[email protected]>

Author: davem330

drivers/net/ethernet/intel/ice/ice.h

@@ -277,10 +277,10 @@ struct ice_vsi {
 	struct list_head tmp_sync_list;		/* MAC filters to be synced */
 	struct list_head tmp_unsync_list;	/* MAC filters to be unsynced */
 
-	u8 irqs_ready;
-	u8 current_isup;		 /* Sync 'link up' logging */
-	u8 stat_offsets_loaded;
-	u8 vlan_ena;
+	u8 irqs_ready:1;
+	u8 current_isup:1;		 /* Sync 'link up' logging */
+	u8 stat_offsets_loaded:1;
+	u8 vlan_ena:1;
 
 	/* queue information */
 	u8 tx_mapping_mode;		 /* ICE_MAP_MODE_[CONTIG|SCATTER] */
@@ -330,7 +330,7 @@ enum ice_pf_flags {
 	ICE_FLAG_DCB_CAPABLE,
 	ICE_FLAG_DCB_ENA,
 	ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA,
-	ICE_FLAG_DISABLE_FW_LLDP,
+	ICE_FLAG_ENABLE_FW_LLDP,
 	ICE_FLAG_ETHTOOL_CTXT,		/* set when ethtool holds RTNL lock */
 	ICE_PF_FLAGS_NBITS		/* must be last */
 };
@@ -384,7 +384,7 @@ struct ice_pf {
 	struct ice_hw_port_stats stats;
 	struct ice_hw_port_stats stats_prev;
 	struct ice_hw hw;
-	u8 stat_prev_loaded;	/* has previous stats been loaded */
+	u8 stat_prev_loaded:1; /* has previous stats been loaded */
 #ifdef CONFIG_DCB
 	u16 dcbx_cap;
 #endif /* CONFIG_DCB */
@@ -451,7 +451,6 @@ int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
 int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
 void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size);
 void ice_print_link_msg(struct ice_vsi *vsi, bool isup);
-void ice_napi_del(struct ice_vsi *vsi);
 #ifdef CONFIG_DCB
 int ice_pf_ena_all_vsi(struct ice_pf *pf, bool locked);
 void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked);

drivers/net/ethernet/intel/ice/ice_common.c

@@ -1447,6 +1447,7 @@ ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count,
 	struct ice_hw_func_caps *func_p = NULL;
 	struct ice_hw_dev_caps *dev_p = NULL;
 	struct ice_hw_common_caps *caps;
+	char const *prefix;
 	u32 i;
 
 	if (!buf)
@@ -1457,9 +1458,11 @@ ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count,
 	if (opc == ice_aqc_opc_list_dev_caps) {
 		dev_p = &hw->dev_caps;
 		caps = &dev_p->common_cap;
+		prefix = "dev cap";
 	} else if (opc == ice_aqc_opc_list_func_caps) {
 		func_p = &hw->func_caps;
 		caps = &func_p->common_cap;
+		prefix = "func cap";
 	} else {
 		ice_debug(hw, ICE_DBG_INIT, "wrong opcode\n");
 		return;
@@ -1475,98 +1478,99 @@ ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count,
 		case ICE_AQC_CAPS_VALID_FUNCTIONS:
 			caps->valid_functions = number;
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: Valid Functions = %d\n",
+				  "%s: valid functions = %d\n", prefix,
 				  caps->valid_functions);
 			break;
 		case ICE_AQC_CAPS_SRIOV:
 			caps->sr_iov_1_1 = (number == 1);
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: SR-IOV = %d\n", caps->sr_iov_1_1);
+				  "%s: SR-IOV = %d\n", prefix,
+				  caps->sr_iov_1_1);
 			break;
 		case ICE_AQC_CAPS_VF:
 			if (dev_p) {
 				dev_p->num_vfs_exposed = number;
 				ice_debug(hw, ICE_DBG_INIT,
-					  "HW caps: VFs exposed = %d\n",
+					  "%s: VFs exposed = %d\n", prefix,
 					  dev_p->num_vfs_exposed);
 			} else if (func_p) {
 				func_p->num_allocd_vfs = number;
 				func_p->vf_base_id = logical_id;
 				ice_debug(hw, ICE_DBG_INIT,
-					  "HW caps: VFs allocated = %d\n",
+					  "%s: VFs allocated = %d\n", prefix,
 					  func_p->num_allocd_vfs);
 				ice_debug(hw, ICE_DBG_INIT,
-					  "HW caps: VF base_id = %d\n",
+					  "%s: VF base_id = %d\n", prefix,
 					  func_p->vf_base_id);
 			}
 			break;
 		case ICE_AQC_CAPS_VSI:
 			if (dev_p) {
 				dev_p->num_vsi_allocd_to_host = number;
 				ice_debug(hw, ICE_DBG_INIT,
-					  "HW caps: Dev.VSI cnt = %d\n",
+					  "%s: num VSI alloc to host = %d\n",
+					  prefix,
 					  dev_p->num_vsi_allocd_to_host);
 			} else if (func_p) {
 				func_p->guar_num_vsi =
 					ice_get_num_per_func(hw, ICE_MAX_VSI);
 				ice_debug(hw, ICE_DBG_INIT,
-					  "HW caps: Func.VSI cnt = %d\n",
-					  number);
+					  "%s: num guaranteed VSI (fw) = %d\n",
+					  prefix, number);
+				ice_debug(hw, ICE_DBG_INIT,
+					  "%s: num guaranteed VSI = %d\n",
+					  prefix, func_p->guar_num_vsi);
 			}
 			break;
 		case ICE_AQC_CAPS_RSS:
 			caps->rss_table_size = number;
 			caps->rss_table_entry_width = logical_id;
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: RSS table size = %d\n",
+				  "%s: RSS table size = %d\n", prefix,
 				  caps->rss_table_size);
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: RSS table width = %d\n",
+				  "%s: RSS table width = %d\n", prefix,
 				  caps->rss_table_entry_width);
 			break;
 		case ICE_AQC_CAPS_RXQS:
 			caps->num_rxq = number;
 			caps->rxq_first_id = phys_id;
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: Num Rx Qs = %d\n", caps->num_rxq);
+				  "%s: num Rx queues = %d\n", prefix,
+				  caps->num_rxq);
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: Rx first queue ID = %d\n",
+				  "%s: Rx first queue ID = %d\n", prefix,
 				  caps->rxq_first_id);
 			break;
 		case ICE_AQC_CAPS_TXQS:
 			caps->num_txq = number;
 			caps->txq_first_id = phys_id;
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: Num Tx Qs = %d\n", caps->num_txq);
+				  "%s: num Tx queues = %d\n", prefix,
+				  caps->num_txq);
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: Tx first queue ID = %d\n",
+				  "%s: Tx first queue ID = %d\n", prefix,
 				  caps->txq_first_id);
 			break;
 		case ICE_AQC_CAPS_MSIX:
 			caps->num_msix_vectors = number;
 			caps->msix_vector_first_id = phys_id;
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: MSIX vector count = %d\n",
+				  "%s: MSIX vector count = %d\n", prefix,
 				  caps->num_msix_vectors);
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: MSIX first vector index = %d\n",
+				  "%s: MSIX first vector index = %d\n", prefix,
 				  caps->msix_vector_first_id);
 			break;
 		case ICE_AQC_CAPS_MAX_MTU:
 			caps->max_mtu = number;
-			if (dev_p)
-				ice_debug(hw, ICE_DBG_INIT,
-					  "HW caps: Dev.MaxMTU = %d\n",
-					  caps->max_mtu);
-			else if (func_p)
-				ice_debug(hw, ICE_DBG_INIT,
-					  "HW caps: func.MaxMTU = %d\n",
-					  caps->max_mtu);
+			ice_debug(hw, ICE_DBG_INIT, "%s: max MTU = %d\n",
+				  prefix, caps->max_mtu);
 			break;
 		default:
 			ice_debug(hw, ICE_DBG_INIT,
-				  "HW caps: Unknown capability[%d]: 0x%x\n", i,
-				  cap);
+				  "%s: unknown capability[%d]: 0x%x\n", prefix,
+				  i, cap);
 			break;
 		}
 	}

drivers/net/ethernet/intel/ice/ice_dcb.c

@@ -82,12 +82,14 @@ ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update,
  * @hw: pointer to the HW struct
  * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown
  *			 False if LLDP Agent needs to be Stopped
+ * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across
+ *	     reboots
  * @cd: pointer to command details structure or NULL
  *
  * Stop or Shutdown the embedded LLDP Agent (0x0A05)
  */
 enum ice_status
-ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent,
+ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
 		 struct ice_sq_cd *cd)
 {
 	struct ice_aqc_lldp_stop *cmd;
@@ -100,17 +102,22 @@ ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent,
 	if (shutdown_lldp_agent)
 		cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN;
 
+	if (persist)
+		cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS;
+
 	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
 }
 
 /**
  * ice_aq_start_lldp
  * @hw: pointer to the HW struct
+ * @persist: True if Start of LLDP Agent needs to be persistent across reboots
  * @cd: pointer to command details structure or NULL
  *
  * Start the embedded LLDP Agent on all ports. (0x0A06)
  */
-enum ice_status ice_aq_start_lldp(struct ice_hw *hw, struct ice_sq_cd *cd)
+enum ice_status
+ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd)
 {
 	struct ice_aqc_lldp_start *cmd;
 	struct ice_aq_desc desc;
@@ -121,6 +128,9 @@ enum ice_status ice_aq_start_lldp(struct ice_hw *hw, struct ice_sq_cd *cd)
 
 	cmd->command = ICE_AQ_LLDP_AGENT_START;
 
+	if (persist)
+		cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_ENA;
+
 	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
 }
 
@@ -163,7 +173,7 @@ ice_aq_set_lldp_mib(struct ice_hw *hw, u8 mib_type, void *buf, u16 buf_size,
  *
  * Get the DCBX status from the Firmware
  */
-u8 ice_get_dcbx_status(struct ice_hw *hw)
+static u8 ice_get_dcbx_status(struct ice_hw *hw)
 {
 	u32 reg;
 
@@ -614,7 +624,8 @@ ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
  *
  * Parse DCB configuration from the LLDPDU
  */
-enum ice_status ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
+static enum ice_status
+ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
 {
 	struct ice_lldp_org_tlv *tlv;
 	enum ice_status ret = 0;
@@ -664,7 +675,7 @@ enum ice_status ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
  *
  * Query DCB configuration from the firmware
  */
-static enum ice_status
+enum ice_status
 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
 		   struct ice_dcbx_cfg *dcbcfg)
 {

drivers/net/ethernet/intel/ice/ice_dcb.h

@@ -120,8 +120,9 @@ struct ice_cee_app_prio {
 	u8 prio_map;
 } __packed;
 
-u8 ice_get_dcbx_status(struct ice_hw *hw);
-enum ice_status ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg);
+enum ice_status
+ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
+		   struct ice_dcbx_cfg *dcbcfg);
 enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi);
 enum ice_status ice_set_dcb_cfg(struct ice_port_info *pi);
 enum ice_status ice_init_dcb(struct ice_hw *hw);
@@ -131,9 +132,10 @@ ice_query_port_ets(struct ice_port_info *pi,
 		   struct ice_sq_cd *cmd_details);
 #ifdef CONFIG_DCB
 enum ice_status
-ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent,
+ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
 		 struct ice_sq_cd *cd);
-enum ice_status ice_aq_start_lldp(struct ice_hw *hw, struct ice_sq_cd *cd);
+enum ice_status
+ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd);
 enum ice_status
 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
 		       bool *dcbx_agent_status, struct ice_sq_cd *cd);
@@ -144,13 +146,15 @@ ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update,
 static inline enum ice_status
 ice_aq_stop_lldp(struct ice_hw __always_unused *hw,
 		 bool __always_unused shutdown_lldp_agent,
+		 bool __always_unused persist,
 		 struct ice_sq_cd __always_unused *cd)
 {
 	return 0;
 }
 
 static inline enum ice_status
 ice_aq_start_lldp(struct ice_hw __always_unused *hw,
+		  bool __always_unused persist,
 		  struct ice_sq_cd __always_unused *cd)
 {
 	return 0;