Merge branch 'qed-dcb-enhancements'

Sudarsana Reddy Kalluru says:

====================
qed*: Dcbx/dcbnl enhancements.

The series has set of enhancements for dcbx/dcbnl implementation of
qed/qede drivers.
 - Patches (1) & (3) capture the sematic and debug changes.
 - Patch (2) adds the driver support for populating RoCEv2 dcb data.
 - Patch (4) adds the required support for reading/configuring the
   IEEE selection field (SF).
 - Patch (5) adds the support for configuring the static dcbx mode.

Please consider applying this to 'net-next' branch.
====================

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

drivers/net/ethernet/qlogic/qed/qed_dcbx.c

@@ -271,8 +271,8 @@ qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
 		     struct dcbx_app_priority_entry *p_tbl,
 		     u32 pri_tc_tbl, int count, u8 dcbx_version)
 {
-	u8 tc, priority_map;
 	enum dcbx_protocol_type type;
+	u8 tc, priority_map;
 	bool enable, ieee;
 	u16 protocol_id;
 	int priority;
@@ -556,8 +556,9 @@ qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
 	p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 
 	DP_VERBOSE(p_hwfn, QED_MSG_DCB,
-		   "PFC params: willing %d, pfc_bitmap %d\n",
-		   p_params->pfc.willing, pfc_map);
+		   "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
+		   p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
+		   p_params->pfc.enabled);
 }
 
 static void
@@ -576,10 +577,10 @@ qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
 	p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
 						 DCBX_ETS_MAX_TCS);
 	DP_VERBOSE(p_hwfn, QED_MSG_DCB,
-		   "ETS params: willing %d, ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
-		   p_params->ets_willing,
-		   p_params->ets_cbs,
-		   p_ets->pri_tc_tbl[0], p_params->max_ets_tc);
+		   "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
+		   p_params->ets_willing, p_params->ets_enabled,
+		   p_params->ets_cbs, p_ets->pri_tc_tbl[0],
+		   p_params->max_ets_tc);
 
 	if (p_params->ets_enabled && !p_params->max_ets_tc) {
 		p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
@@ -620,8 +621,7 @@ qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
 }
 
 static void
-qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn,
-			  struct qed_ptt *p_ptt, struct qed_dcbx_get *params)
+qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 {
 	struct dcbx_features *p_feat;
 
@@ -633,8 +633,7 @@ qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn,
 }
 
 static void
-qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn,
-			   struct qed_ptt *p_ptt, struct qed_dcbx_get *params)
+qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 {
 	struct dcbx_features *p_feat;
 
@@ -647,7 +646,6 @@ qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn,
 
 static void
 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
-				struct qed_ptt *p_ptt,
 				struct qed_dcbx_get *params)
 {
 	struct qed_dcbx_operational_params *p_operational;
@@ -668,6 +666,7 @@ qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 	if (!enabled) {
 		p_operational->enabled = enabled;
 		p_operational->valid = false;
+		DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
 		return;
 	}
 
@@ -681,8 +680,14 @@ qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 		 DCBX_CONFIG_VERSION_CEE);
 	p_operational->cee = val;
 
-	DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Version support: ieee %d, cee %d\n",
-		   p_operational->ieee, p_operational->cee);
+	val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
+		 DCBX_CONFIG_VERSION_STATIC);
+	p_operational->local = val;
+
+	DP_VERBOSE(p_hwfn, QED_MSG_DCB,
+		   "Version support: ieee %d, cee %d, static %d\n",
+		   p_operational->ieee, p_operational->cee,
+		   p_operational->local);
 
 	qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 				   p_feat->app.app_pri_tbl, &p_feat->ets,
@@ -697,7 +702,6 @@ qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 
 static void
 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
-			       struct qed_ptt *p_ptt,
 			       struct qed_dcbx_get *params)
 {
 	struct lldp_config_params_s *p_local;
@@ -712,7 +716,6 @@ qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
 
 static void
 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
-				struct qed_ptt *p_ptt,
 				struct qed_dcbx_get *params)
 {
 	struct lldp_status_params_s *p_remote;
@@ -726,25 +729,24 @@ qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
 }
 
 static int
-qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
-		    struct qed_dcbx_get *p_params,
+qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
 		    enum qed_mib_read_type type)
 {
 	switch (type) {
 	case QED_DCBX_REMOTE_MIB:
-		qed_dcbx_get_remote_params(p_hwfn, p_ptt, p_params);
+		qed_dcbx_get_remote_params(p_hwfn, p_params);
 		break;
 	case QED_DCBX_LOCAL_MIB:
-		qed_dcbx_get_local_params(p_hwfn, p_ptt, p_params);
+		qed_dcbx_get_local_params(p_hwfn, p_params);
 		break;
 	case QED_DCBX_OPERATIONAL_MIB:
-		qed_dcbx_get_operational_params(p_hwfn, p_ptt, p_params);
+		qed_dcbx_get_operational_params(p_hwfn, p_params);
 		break;
 	case QED_DCBX_REMOTE_LLDP_MIB:
-		qed_dcbx_get_remote_lldp_params(p_hwfn, p_ptt, p_params);
+		qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
 		break;
 	case QED_DCBX_LOCAL_LLDP_MIB:
-		qed_dcbx_get_local_lldp_params(p_hwfn, p_ptt, p_params);
+		qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
 		break;
 	default:
 		DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
@@ -902,7 +904,8 @@ qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 			qed_sp_pf_update(p_hwfn);
 		}
 	}
-	qed_dcbx_get_params(p_hwfn, p_ptt, &p_hwfn->p_dcbx_info->get, type);
+
+	qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
 	qed_dcbx_aen(p_hwfn, type);
 
 	return rc;
@@ -910,17 +913,14 @@ qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 
 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 {
-	int rc = 0;
-
 	p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 	if (!p_hwfn->p_dcbx_info)
-		rc = -ENOMEM;
+		return -ENOMEM;
 
-	return rc;
+	return 0;
 }
 
-void qed_dcbx_info_free(struct qed_hwfn *p_hwfn,
-			struct qed_dcbx_info *p_dcbx_info)
+void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
 {
 	kfree(p_hwfn->p_dcbx_info);
 }
@@ -959,14 +959,9 @@ void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 	p_dcb_data = &p_dest->fcoe_dcb_data;
 	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 	p_dcb_data = &p_dest->roce_dcb_data;
-
-	if (p_src->arr[DCBX_PROTOCOL_ROCE].update)
-		qed_dcbx_update_protocol_data(p_dcb_data, p_src,
-					      DCBX_PROTOCOL_ROCE);
-	if (p_src->arr[DCBX_PROTOCOL_ROCE_V2].update)
-		qed_dcbx_update_protocol_data(p_dcb_data, p_src,
-					      DCBX_PROTOCOL_ROCE_V2);
-
+	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
+	p_dcb_data = &p_dest->rroce_dcb_data;
+	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
 	p_dcb_data = &p_dest->iscsi_dcb_data;
 	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 	p_dcb_data = &p_dest->eth_dcb_data;
@@ -992,7 +987,7 @@ static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 	if (rc)
 		goto out;
 
-	rc = qed_dcbx_get_params(p_hwfn, p_ptt, p_get, type);
+	rc = qed_dcbx_get_params(p_hwfn, p_get, type);
 
 out:
 	qed_ptt_release(p_hwfn, p_ptt);
@@ -1167,6 +1162,9 @@ qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
 		local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
 	}
 
+	DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
+		   local_admin->config);
+
 	if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
 		qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
 				      &params->config.params);
@@ -1243,6 +1241,8 @@ int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
 		p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
 	if (dcbx_info->operational.ieee)
 		p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
+	if (dcbx_info->operational.local)
+		p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
 
 	p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
 	memcpy(&p_hwfn->p_dcbx_info->set.config.params,
@@ -1792,8 +1792,9 @@ static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
 
 	DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
 
-	if (!(mode & DCB_CAP_DCBX_VER_IEEE) && !(mode & DCB_CAP_DCBX_VER_CEE)) {
-		DP_INFO(hwfn, "Allowed mode is cee, ieee or both\n");
+	if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
+	    !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
+		DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
 		return 1;
 	}
 
@@ -1813,6 +1814,11 @@ static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
 		dcbx_set.enabled = true;
 	}
 
+	if (mode & DCB_CAP_DCBX_STATIC) {
+		dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
+		dcbx_set.enabled = true;
+	}
+
 	ptt = qed_ptt_acquire(hwfn);
 	if (!ptt)
 		return 1;
@@ -1821,7 +1827,7 @@ static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
 
 	qed_ptt_release(hwfn, ptt);
 
-	return 0;
+	return rc;
 }
 
 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
@@ -2200,15 +2206,46 @@ qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
 	return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
 }
 
+static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
+{
+	switch (selector) {
+	case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
+		*sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
+		break;
+	case IEEE_8021QAZ_APP_SEL_STREAM:
+		*sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
+		break;
+	case IEEE_8021QAZ_APP_SEL_DGRAM:
+		*sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
+		break;
+	case IEEE_8021QAZ_APP_SEL_ANY:
+		*sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
 {
 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
 	struct qed_dcbx_get *dcbx_info;
 	struct qed_app_entry *entry;
-	bool ethtype;
 	u8 prio = 0;
+	u8 sf_ieee;
 	int i;
 
+	DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
+		   app->selector, app->protocol);
+
+	if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
+		DP_INFO(cdev, "Invalid selector field value %d\n",
+			app->selector);
+		return -EINVAL;
+	}
+
 	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
 	if (!dcbx_info)
 		return -EINVAL;
@@ -2219,11 +2256,9 @@ static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
 		return -EINVAL;
 	}
 
-	/* ieee defines the selector field value for ethertype to be 1 */
-	ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
 	for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
 		entry = &dcbx_info->operational.params.app_entry[i];
-		if ((entry->ethtype == ethtype) &&
+		if ((entry->sf_ieee == sf_ieee) &&
 		    (entry->proto_id == app->protocol)) {
 			prio = entry->prio;
 			break;
@@ -2251,14 +2286,22 @@ static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
 	struct qed_dcbx_set dcbx_set;
 	struct qed_app_entry *entry;
 	struct qed_ptt *ptt;
-	bool ethtype;
+	u8 sf_ieee;
 	int rc, i;
 
+	DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
+		   app->selector, app->protocol, app->priority);
 	if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
 		DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
 		return -EINVAL;
 	}
 
+	if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
+		DP_INFO(cdev, "Invalid selector field value %d\n",
+			app->selector);
+		return -EINVAL;
+	}
+
 	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
 	if (!dcbx_info)
 		return -EINVAL;
@@ -2276,11 +2319,9 @@ static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
 	if (rc)
 		return -EINVAL;
 
-	/* ieee defines the selector field value for ethertype to be 1 */
-	ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
 	for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
 		entry = &dcbx_set.config.params.app_entry[i];
-		if ((entry->ethtype == ethtype) &&
+		if ((entry->sf_ieee == sf_ieee) &&
 		    (entry->proto_id == app->protocol))
 			break;
 		/* First empty slot */
@@ -2296,7 +2337,7 @@ static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
 	}
 
 	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
-	dcbx_set.config.params.app_entry[i].ethtype = ethtype;
+	dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
 	dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
 	dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
 

drivers/net/ethernet/qlogic/qed/qed_dcbx.h

@@ -119,7 +119,7 @@ qed_dcbx_mib_update_event(struct qed_hwfn *,
 			  struct qed_ptt *, enum qed_mib_read_type);
 
 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn);
-void qed_dcbx_info_free(struct qed_hwfn *, struct qed_dcbx_info *);
+void qed_dcbx_info_free(struct qed_hwfn *p_hwfn);
 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 				   struct pf_update_ramrod_data *p_dest);
 

drivers/net/ethernet/qlogic/qed/qed_dev.c

@@ -183,7 +183,7 @@ void qed_resc_free(struct qed_dev *cdev)
 		}
 		qed_iov_free(p_hwfn);
 		qed_dmae_info_free(p_hwfn);
-		qed_dcbx_info_free(p_hwfn, p_hwfn->p_dcbx_info);
+		qed_dcbx_info_free(p_hwfn);
 	}
 }
 

drivers/net/ethernet/qlogic/qede/qede_dcbnl.c

@@ -281,6 +281,11 @@ static int qede_dcbnl_ieee_setapp(struct net_device *netdev,
 				  struct dcb_app *app)
 {
 	struct qede_dev *edev = netdev_priv(netdev);
+	int err;
+
+	err = dcb_ieee_setapp(netdev, app);
+	if (err)
+		return err;
 
 	return edev->ops->dcb->ieee_setapp(edev->cdev, app);
 }

include/linux/qed/qed_if.h

@@ -144,6 +144,7 @@ struct qed_dcbx_operational_params {
 	bool enabled;
 	bool ieee;
 	bool cee;
+	bool local;
 	u32 err;
 };