Currently, there is no way for a VF driver to specify that it wants to
change its device/primary unicast MAC address. This makes it
difficult/impossible for the PF driver to track the VF's device/primary
unicast MAC address, which is used for VM/VF reboot and displaying on
the host. Fix this by using 2 bits of a pad byte in the
virtchnl_ether_addr structure so the VF can specify what type of MAC
it's adding/deleting.
Below are the values that should be used by all VF drivers going
forward.
VIRTCHNL_ETHER_ADDR_LEGACY(0):
- The type should only ever be 0 for legacy AVF drivers (i.e.
drivers that don't support the new type bits). The PF drivers
will track VF's device/primary unicast MAC using with best
effort.
VIRTCHNL_ETHER_ADDR_PRIMARY(1):
- This type should only be used when the VF is changing their
device/primary unicast MAC. It should be used for both delete
and add cases related to the device/primary unicast MAC.
VIRTCHNL_ETHER_ADDR_EXTRA(2):
- This type should be used when the VF is adding and/or deleting
MAC addresses that are not the device/primary unicast MAC. For
example, extra unicast addresses and multicast addresses
assuming the PF supports "extra" addresses at all.
If a PF is parsing the type field of the virtchnl_ether_addr, then it
should use the VIRTCHNL_ETHER_ADDR_TYPE_MASK to mask the first two bits
of the type field since 0, 1, and 2 are the only valid values.
For i40evf PMD, when set default MAC address, use type
VIRTCHNL_ETHER_ADDR_PRIMARY as this case is changing device/primary
unicast MAC. For other cases, such as adding or deleting extra unicast
addresses and multicast addresses, use type VIRTCHNL_ETHER_ADDR_EXTRA.
Fixes: 6d13ea8e8e49 ("net: add rte prefix to ether structures")
Fixes: caccf8b318ca ("ethdev: return diagnostic when setting MAC address")
Signed-off-by: Robin Zhang <robinx.zhang@intel.com>
---
drivers/net/i40e/base/virtchnl.h | 29 +++++++++-
drivers/net/i40e/i40e_ethdev_vf.c | 91 +++++++++++++++----------------
2 files changed, 73 insertions(+), 47 deletions(-)
@@ -402,9 +402,36 @@ VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_select);
* PF removes the filters and returns status.
*/
+/* VIRTCHNL_ETHER_ADDR_LEGACY
+ * Prior to adding the @type member to virtchnl_ether_addr, there were 2 pad
+ * bytes. Moving forward all VF drivers should not set type to
+ * VIRTCHNL_ETHER_ADDR_LEGACY. This is only here to not break previous/legacy
+ * behavior. The control plane function (i.e. PF) can use a best effort method
+ * of tracking the primary/device unicast in this case, but there is no
+ * guarantee and functionality depends on the implementation of the PF.
+ */
+
+/* VIRTCHNL_ETHER_ADDR_PRIMARY
+ * All VF drivers should set @type to VIRTCHNL_ETHER_ADDR_PRIMARY for the
+ * primary/device unicast MAC address filter for VIRTCHNL_OP_ADD_ETH_ADDR and
+ * VIRTCHNL_OP_DEL_ETH_ADDR. This allows for the underlying control plane
+ * function (i.e. PF) to accurately track and use this MAC address for
+ * displaying on the host and for VM/function reset.
+ */
+
+/* VIRTCHNL_ETHER_ADDR_EXTRA
+ * All VF drivers should set @type to VIRTCHNL_ETHER_ADDR_EXTRA for any extra
+ * unicast and/or multicast filters that are being added/deleted via
+ * VIRTCHNL_OP_DEL_ETH_ADDR/VIRTCHNL_OP_ADD_ETH_ADDR respectively.
+ */
struct virtchnl_ether_addr {
u8 addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
- u8 pad[2];
+ u8 type;
+#define VIRTCHNL_ETHER_ADDR_LEGACY 0
+#define VIRTCHNL_ETHER_ADDR_PRIMARY 1
+#define VIRTCHNL_ETHER_ADDR_EXTRA 2
+#define VIRTCHNL_ETHER_ADDR_TYPE_MASK 3 /* first two bits of type are valid */
+ u8 pad;
};
VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_ether_addr);
@@ -106,6 +106,9 @@ static int i40evf_dev_tx_queue_start(struct rte_eth_dev *dev,
uint16_t tx_queue_id);
static int i40evf_dev_tx_queue_stop(struct rte_eth_dev *dev,
uint16_t tx_queue_id);
+static int i40evf_add_del_eth_addr(struct rte_eth_dev *dev,
+ struct rte_ether_addr *addr,
+ bool add, uint8_t type);
static int i40evf_add_mac_addr(struct rte_eth_dev *dev,
struct rte_ether_addr *addr,
uint32_t index,
@@ -823,10 +826,9 @@ i40evf_stop_queues(struct rte_eth_dev *dev)
}
static int
-i40evf_add_mac_addr(struct rte_eth_dev *dev,
- struct rte_ether_addr *addr,
- __rte_unused uint32_t index,
- __rte_unused uint32_t pool)
+i40evf_add_del_eth_addr(struct rte_eth_dev *dev,
+ struct rte_ether_addr *addr,
+ bool add, uint8_t type)
{
struct virtchnl_ether_addr_list *list;
struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
@@ -835,83 +837,70 @@ i40evf_add_mac_addr(struct rte_eth_dev *dev,
int err;
struct vf_cmd_info args;
- if (rte_is_zero_ether_addr(addr)) {
- PMD_DRV_LOG(ERR, "Invalid mac:%x:%x:%x:%x:%x:%x",
- addr->addr_bytes[0], addr->addr_bytes[1],
- addr->addr_bytes[2], addr->addr_bytes[3],
- addr->addr_bytes[4], addr->addr_bytes[5]);
- return I40E_ERR_INVALID_MAC_ADDR;
- }
-
list = (struct virtchnl_ether_addr_list *)cmd_buffer;
list->vsi_id = vf->vsi_res->vsi_id;
list->num_elements = 1;
+ list->list[0].type = type;
rte_memcpy(list->list[0].addr, addr->addr_bytes,
sizeof(addr->addr_bytes));
- args.ops = VIRTCHNL_OP_ADD_ETH_ADDR;
+ args.ops = add ? VIRTCHNL_OP_ADD_ETH_ADDR : VIRTCHNL_OP_DEL_ETH_ADDR;
args.in_args = cmd_buffer;
args.in_args_size = sizeof(cmd_buffer);
args.out_buffer = vf->aq_resp;
args.out_size = I40E_AQ_BUF_SZ;
err = i40evf_execute_vf_cmd(dev, &args);
if (err)
- PMD_DRV_LOG(ERR, "fail to execute command "
- "OP_ADD_ETHER_ADDRESS");
- else
- vf->vsi.mac_num++;
-
+ PMD_DRV_LOG(ERR, "fail to execute command %s",
+ add ? "OP_ADD_ETH_ADDR" : "OP_DEL_ETH_ADDR");
return err;
}
-static void
-i40evf_del_mac_addr_by_addr(struct rte_eth_dev *dev,
- struct rte_ether_addr *addr)
+static int
+i40evf_add_mac_addr(struct rte_eth_dev *dev,
+ struct rte_ether_addr *addr,
+ __rte_unused uint32_t index,
+ __rte_unused uint32_t pool)
{
- struct virtchnl_ether_addr_list *list;
struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
- uint8_t cmd_buffer[sizeof(struct virtchnl_ether_addr_list) + \
- sizeof(struct virtchnl_ether_addr)];
int err;
- struct vf_cmd_info args;
- if (i40e_validate_mac_addr(addr->addr_bytes) != I40E_SUCCESS) {
- PMD_DRV_LOG(ERR, "Invalid mac:%x-%x-%x-%x-%x-%x",
+ if (rte_is_zero_ether_addr(addr)) {
+ PMD_DRV_LOG(ERR, "Invalid mac:%x:%x:%x:%x:%x:%x",
addr->addr_bytes[0], addr->addr_bytes[1],
addr->addr_bytes[2], addr->addr_bytes[3],
addr->addr_bytes[4], addr->addr_bytes[5]);
- return;
+ return I40E_ERR_INVALID_MAC_ADDR;
}
- list = (struct virtchnl_ether_addr_list *)cmd_buffer;
- list->vsi_id = vf->vsi_res->vsi_id;
- list->num_elements = 1;
- rte_memcpy(list->list[0].addr, addr->addr_bytes,
- sizeof(addr->addr_bytes));
+ err = i40evf_add_del_eth_addr(dev, addr, TRUE, VIRTCHNL_ETHER_ADDR_EXTRA);
- args.ops = VIRTCHNL_OP_DEL_ETH_ADDR;
- args.in_args = cmd_buffer;
- args.in_args_size = sizeof(cmd_buffer);
- args.out_buffer = vf->aq_resp;
- args.out_size = I40E_AQ_BUF_SZ;
- err = i40evf_execute_vf_cmd(dev, &args);
if (err)
- PMD_DRV_LOG(ERR, "fail to execute command "
- "OP_DEL_ETHER_ADDRESS");
+ PMD_DRV_LOG(ERR, "fail to add MAC address");
else
- vf->vsi.mac_num--;
- return;
+ vf->vsi.mac_num++;
+
+ return err;
}
static void
i40evf_del_mac_addr(struct rte_eth_dev *dev, uint32_t index)
{
+ struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
struct rte_eth_dev_data *data = dev->data;
struct rte_ether_addr *addr;
+ int err;
addr = &data->mac_addrs[index];
- i40evf_del_mac_addr_by_addr(dev, addr);
+ err = i40evf_add_del_eth_addr(dev, addr, FALSE, VIRTCHNL_ETHER_ADDR_EXTRA);
+
+ if (err)
+ PMD_DRV_LOG(ERR, "fail to delete MAC address");
+ else
+ vf->vsi.mac_num--;
+
+ return;
}
static int
@@ -2093,6 +2082,7 @@ i40evf_add_del_all_mac_addr(struct rte_eth_dev *dev, bool add)
continue;
rte_memcpy(list->list[j].addr, addr->addr_bytes,
sizeof(addr->addr_bytes));
+ list->list[j].type = VIRTCHNL_ETHER_ADDR_EXTRA;
PMD_DRV_LOG(DEBUG, "add/rm mac:%x:%x:%x:%x:%x:%x",
addr->addr_bytes[0], addr->addr_bytes[1],
addr->addr_bytes[2], addr->addr_bytes[3],
@@ -2853,15 +2843,23 @@ i40evf_set_default_mac_addr(struct rte_eth_dev *dev,
struct rte_ether_addr *mac_addr)
{
struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct rte_ether_addr *old_addr;
+ int ret;
+
+ old_addr = (struct rte_ether_addr *)hw->mac.addr;
if (!rte_is_valid_assigned_ether_addr(mac_addr)) {
PMD_DRV_LOG(ERR, "Tried to set invalid MAC address.");
return -EINVAL;
}
- i40evf_del_mac_addr_by_addr(dev, (struct rte_ether_addr *)hw->mac.addr);
+ if (rte_is_same_ether_addr(old_addr, mac_addr))
+ return 0;
+
+ i40evf_add_del_eth_addr(dev, old_addr, FALSE, VIRTCHNL_ETHER_ADDR_PRIMARY);
- if (i40evf_add_mac_addr(dev, mac_addr, 0, 0) != 0)
+ ret = i40evf_add_del_eth_addr(dev, mac_addr, TRUE, VIRTCHNL_ETHER_ADDR_PRIMARY);
+ if (ret)
return -EIO;
rte_ether_addr_copy(mac_addr, (struct rte_ether_addr *)hw->mac.addr);
@@ -2905,6 +2903,7 @@ i40evf_add_del_mc_addr_list(struct rte_eth_dev *dev,
memcpy(list->list[i].addr, mc_addrs[i].addr_bytes,
sizeof(list->list[i].addr));
+ list->list[i].type = VIRTCHNL_ETHER_ADDR_EXTRA;
}
args.ops = add ? VIRTCHNL_OP_ADD_ETH_ADDR : VIRTCHNL_OP_DEL_ETH_ADDR;