net/qede/base: allow changing VF MAC address

This patch allows VF to change its own MAC address regardless of MAC set
by PF

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>

diff --git a/drivers/net/qede/base/ecore_iov_api.h b/drivers/net/qede/base/ecore_iov_api.h
index 218ef50..3ac219b 100644 (file)
--- a/drivers/net/qede/base/ecore_iov_api.h
+++ b/drivers/net/qede/base/ecore_iov_api.h
@@ -539,6 +539,17 @@ bool ecore_iov_is_valid_vfpf_msg_length(u32 length);
  */
 u32 ecore_iov_pfvf_msg_length(void);
 
+/**
+ * @brief Returns MAC address if one is configured
+ *
+ * @parm p_hwfn
+ * @parm rel_vf_id
+ *
+ * @return OSAL_NULL if mac isn't set; Otherwise, returns MAC.
+ */
+u8 *ecore_iov_bulletin_get_mac(struct ecore_hwfn *p_hwfn,
+                              u16 rel_vf_id);
+
 /**
  * @brief Returns forced MAC address if one is configured
  *

diff --git a/drivers/net/qede/base/ecore_proto_if.h b/drivers/net/qede/base/ecore_proto_if.h
index abca740..d0518df 100644 (file)
--- a/drivers/net/qede/base/ecore_proto_if.h
+++ b/drivers/net/qede/base/ecore_proto_if.h
@@ -31,6 +31,9 @@ struct ecore_eth_pf_params {
         * This will set the maximal number of configured steering-filters.
         */
        u32     num_arfs_filters;
+
+       /* To allow VF to change its MAC despite of PF set forced MAC. */
+       bool    allow_vf_mac_change;
 };
 
 /* Most of the parameters below are described in the FW iSCSI / TCP HSI */

diff --git a/drivers/net/qede/base/ecore_sriov.c b/drivers/net/qede/base/ecore_sriov.c
index b1e26d6..b7a52f8 100644 (file)
--- a/drivers/net/qede/base/ecore_sriov.c
+++ b/drivers/net/qede/base/ecore_sriov.c
@@ -1968,7 +1968,8 @@ ecore_iov_configure_vport_forced(struct ecore_hwfn *p_hwfn,
        if (!p_vf->vport_instance)
                return ECORE_INVAL;
 
-       if (events & (1 << MAC_ADDR_FORCED)) {
+       if ((events & (1 << MAC_ADDR_FORCED)) ||
+           p_hwfn->pf_params.eth_pf_params.allow_vf_mac_change) {
                /* Since there's no way [currently] of removing the MAC,
                 * we can always assume this means we need to force it.
                 */
@@ -1989,7 +1990,11 @@ ecore_iov_configure_vport_forced(struct ecore_hwfn *p_hwfn,
                        return rc;
                }
 
-               p_vf->configured_features |= 1 << MAC_ADDR_FORCED;
+               if (p_hwfn->pf_params.eth_pf_params.allow_vf_mac_change)
+                       p_vf->configured_features |=
+                               1 << VFPF_BULLETIN_MAC_ADDR;
+               else
+                       p_vf->configured_features |= 1 << MAC_ADDR_FORCED;
        }
 
        if (events & (1 << VLAN_ADDR_FORCED)) {
@@ -4370,7 +4375,11 @@ void ecore_iov_bulletin_set_forced_mac(struct ecore_hwfn *p_hwfn,
                return;
        }
 
-       feature = 1 << MAC_ADDR_FORCED;
+       if (p_hwfn->pf_params.eth_pf_params.allow_vf_mac_change)
+               feature = 1 << VFPF_BULLETIN_MAC_ADDR;
+       else
+               feature = 1 << MAC_ADDR_FORCED;
+
        OSAL_MEMCPY(vf_info->bulletin.p_virt->mac, mac, ETH_ALEN);
 
        vf_info->bulletin.p_virt->valid_bitmap |= feature;
@@ -4411,9 +4420,13 @@ enum _ecore_status_t ecore_iov_bulletin_set_mac(struct ecore_hwfn *p_hwfn,
 
        vf_info->bulletin.p_virt->valid_bitmap |= feature;
 
+       if (p_hwfn->pf_params.eth_pf_params.allow_vf_mac_change)
+               ecore_iov_configure_vport_forced(p_hwfn, vf_info, feature);
+
        return ECORE_SUCCESS;
 }
 
+#ifndef LINUX_REMOVE
 enum _ecore_status_t
 ecore_iov_bulletin_set_forced_untagged_default(struct ecore_hwfn *p_hwfn,
                                               bool b_untagged_only, int vfid)
@@ -4470,6 +4483,7 @@ void ecore_iov_get_vfs_opaque_fid(struct ecore_hwfn *p_hwfn, int vfid,
 
        *opaque_fid = vf_info->opaque_fid;
 }
+#endif
 
 void ecore_iov_bulletin_set_forced_vlan(struct ecore_hwfn *p_hwfn,
                                        u16 pvid, int vfid)
@@ -4657,6 +4671,22 @@ u32 ecore_iov_pfvf_msg_length(void)
        return sizeof(union pfvf_tlvs);
 }
 
+u8 *ecore_iov_bulletin_get_mac(struct ecore_hwfn *p_hwfn,
+                                     u16 rel_vf_id)
+{
+       struct ecore_vf_info *p_vf;
+
+       p_vf = ecore_iov_get_vf_info(p_hwfn, rel_vf_id, true);
+       if (!p_vf || !p_vf->bulletin.p_virt)
+               return OSAL_NULL;
+
+       if (!(p_vf->bulletin.p_virt->valid_bitmap &
+               (1 << VFPF_BULLETIN_MAC_ADDR)))
+               return OSAL_NULL;
+
+       return p_vf->bulletin.p_virt->mac;
+}
+
 u8 *ecore_iov_bulletin_get_forced_mac(struct ecore_hwfn *p_hwfn, u16 rel_vf_id)
 {
        struct ecore_vf_info *p_vf;