net/qede: initialize VF MAC and link

This patch configures VFs with random mac if no MAC is
provided by the PF/bulletin. This also adds required bulletin
APIs by PF-PMD driver to communicate LINK properties/changes to
the VFs through bulletin update mechanism.

With these changes, VF-PMD instance is able to run
fastpath over PF-PMD driver instance.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Rasesh Mody <rmody@marvell.com>

diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 3cc1419..150c70d 100644 (file)
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -2477,6 +2477,24 @@ static void qede_update_pf_params(struct ecore_dev *edev)
        qed_ops->common->update_pf_params(edev, &pf_params);
 }
 
+static void qede_generate_random_mac_addr(struct rte_ether_addr *mac_addr)
+{
+       uint64_t random;
+
+       /* Set Organizationally Unique Identifier (OUI) prefix. */
+       mac_addr->addr_bytes[0] = 0x00;
+       mac_addr->addr_bytes[1] = 0x09;
+       mac_addr->addr_bytes[2] = 0xC0;
+
+       /* Force indication of locally assigned MAC address. */
+       mac_addr->addr_bytes[0] |= RTE_ETHER_LOCAL_ADMIN_ADDR;
+
+       /* Generate the last 3 bytes of the MAC address with a random number. */
+       random = rte_rand();
+
+       memcpy(&mac_addr->addr_bytes[3], &random, 3);
+}
+
 static int qede_common_dev_init(struct rte_eth_dev *eth_dev, bool is_vf)
 {
        struct rte_pci_device *pci_dev;
@@ -2489,7 +2507,7 @@ static int qede_common_dev_init(struct rte_eth_dev *eth_dev, bool is_vf)
        uint8_t bulletin_change;
        uint8_t vf_mac[RTE_ETHER_ADDR_LEN];
        uint8_t is_mac_forced;
-       bool is_mac_exist;
+       bool is_mac_exist = false;
        /* Fix up ecore debug level */
        uint32_t dp_module = ~0 & ~ECORE_MSG_HW;
        uint8_t dp_level = ECORE_LEVEL_VERBOSE;
@@ -2667,6 +2685,20 @@ static int qede_common_dev_init(struct rte_eth_dev *eth_dev, bool is_vf)
                                DP_ERR(edev, "No VF macaddr assigned\n");
                        }
                }
+
+               /* If MAC doesn't exist from PF, generate random one */
+               if (!is_mac_exist) {
+                       struct rte_ether_addr *mac_addr;
+
+                       mac_addr = (struct rte_ether_addr *)&vf_mac;
+                       qede_generate_random_mac_addr(mac_addr);
+
+                       rte_ether_addr_copy(mac_addr,
+                                           &eth_dev->data->mac_addrs[0]);
+
+                       rte_ether_addr_copy(&eth_dev->data->mac_addrs[0],
+                                           &adapter->primary_mac);
+               }
        }
 
        eth_dev->dev_ops = (is_vf) ? &qede_eth_vf_dev_ops : &qede_eth_dev_ops;

diff --git a/drivers/net/qede/qede_main.c b/drivers/net/qede/qede_main.c
index 6a7bfc1..0d3cea6 100644 (file)
--- a/drivers/net/qede/qede_main.c
+++ b/drivers/net/qede/qede_main.c
@@ -651,8 +651,12 @@ void qed_link_update(struct ecore_hwfn *hwfn)
        struct ecore_dev *edev = hwfn->p_dev;
        struct qede_dev *qdev = (struct qede_dev *)edev;
        struct rte_eth_dev *dev = (struct rte_eth_dev *)qdev->ethdev;
+       int rc;
+
+       rc = qede_link_update(dev, 0);
+       qed_inform_vf_link_state(hwfn);
 
-       if (!qede_link_update(dev, 0))
+       if (!rc)
                rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
 }
 

diff --git a/drivers/net/qede/qede_sriov.c b/drivers/net/qede/qede_sriov.c
index 6d620dd..93f7a2a 100644 (file)
--- a/drivers/net/qede/qede_sriov.c
+++ b/drivers/net/qede/qede_sriov.c
@@ -126,6 +126,28 @@ static void qed_handle_vf_msg(struct ecore_hwfn *hwfn)
        ecore_ptt_release(hwfn, ptt);
 }
 
+static void qed_handle_bulletin_post(struct ecore_hwfn *hwfn)
+{
+       struct ecore_ptt *ptt;
+       int i;
+
+       ptt = ecore_ptt_acquire(hwfn);
+       if (!ptt) {
+               DP_NOTICE(hwfn, true, "PTT acquire failed\n");
+               qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
+               return;
+       }
+
+       /* TODO - at the moment update bulletin board of all VFs.
+        * if this proves to costly, we can mark VFs that need their
+        * bulletins updated.
+        */
+       ecore_for_each_vf(hwfn, i)
+               ecore_iov_post_vf_bulletin(hwfn, i, ptt);
+
+       ecore_ptt_release(hwfn, ptt);
+}
+
 void qed_iov_pf_task(void *arg)
 {
        struct ecore_hwfn *p_hwfn = arg;
@@ -134,6 +156,13 @@ void qed_iov_pf_task(void *arg)
                OSAL_CLEAR_BIT(QED_IOV_WQ_MSG_FLAG, &p_hwfn->iov_task_flags);
                qed_handle_vf_msg(p_hwfn);
        }
+
+       if (OSAL_GET_BIT(QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
+                        &p_hwfn->iov_task_flags)) {
+               OSAL_CLEAR_BIT(QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
+                              &p_hwfn->iov_task_flags);
+               qed_handle_bulletin_post(p_hwfn);
+       }
 }
 
 int qed_schedule_iov(struct ecore_hwfn *p_hwfn, enum qed_iov_wq_flag flag)
@@ -144,3 +173,29 @@ int qed_schedule_iov(struct ecore_hwfn *p_hwfn, enum qed_iov_wq_flag flag)
        OSAL_SET_BIT(flag, &p_hwfn->iov_task_flags);
        return rte_eal_alarm_set(1, qed_iov_pf_task, p_hwfn);
 }
+
+void qed_inform_vf_link_state(struct ecore_hwfn *hwfn)
+{
+       struct ecore_hwfn *lead_hwfn = ECORE_LEADING_HWFN(hwfn->p_dev);
+       struct ecore_mcp_link_capabilities caps;
+       struct ecore_mcp_link_params params;
+       struct ecore_mcp_link_state link;
+       int i;
+
+       if (!hwfn->pf_iov_info)
+               return;
+
+       rte_memcpy(&params, ecore_mcp_get_link_params(lead_hwfn),
+                  sizeof(params));
+       rte_memcpy(&link, ecore_mcp_get_link_state(lead_hwfn), sizeof(link));
+       rte_memcpy(&caps, ecore_mcp_get_link_capabilities(lead_hwfn),
+                  sizeof(caps));
+
+       /* Update bulletin of all future possible VFs with link configuration */
+       for (i = 0; i < hwfn->p_dev->p_iov_info->total_vfs; i++) {
+               ecore_iov_set_link(hwfn, i,
+                                  &params, &link, &caps);
+       }
+
+       qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
+}

diff --git a/drivers/net/qede/qede_sriov.h b/drivers/net/qede/qede_sriov.h
index 8b7fa7d..e58ecc2 100644 (file)
--- a/drivers/net/qede/qede_sriov.h
+++ b/drivers/net/qede/qede_sriov.h
@@ -17,5 +17,6 @@ enum qed_iov_wq_flag {
        QED_IOV_WQ_DB_REC_HANDLER,
 };
 
+void qed_inform_vf_link_state(struct ecore_hwfn *hwfn);
 int qed_schedule_iov(struct ecore_hwfn *p_hwfn, enum qed_iov_wq_flag flag);
 void qed_iov_pf_task(void *arg);