net/ice: support MTU configuration in DCF mode

add API "mtu_set" to dcf, and it can configure the port mtu through
cmdline.

Signed-off-by: Jie Wang <jie1x.wang@intel.com>
Signed-off-by: Kevin Liu <kevinx.liu@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/doc/guides/nics/features/ice_dcf.ini b/doc/guides/nics/features/ice_dcf.ini
index d9c1b25407988f586ed3b966821927f9dfbd3865..be34ab4692c9f902b7d3353fb23e3ee6b1cb0b70 100644 (file)
--- a/doc/guides/nics/features/ice_dcf.ini
+++ b/doc/guides/nics/features/ice_dcf.ini
@@ -17,6 +17,7 @@ Inner L3 checksum    = P
 Inner L4 checksum    = P
 RSS reta update      = Y
 RSS key update       = Y
+MTU update           = Y
 Basic stats          = Y
 Linux                = Y
 x86-32               = Y

diff --git a/doc/guides/rel_notes/release_22_07.rst b/doc/guides/rel_notes/release_22_07.rst
index 1c29417c8aec1dd3f516e2b4187e2b17877fcb99..c29f3d57d0318624e0a0e046e682508bed21637a 100644 (file)
--- a/doc/guides/rel_notes/release_22_07.rst
+++ b/doc/guides/rel_notes/release_22_07.rst
@@ -70,6 +70,7 @@ New Features
 
  * Added support for RSS RETA configure in DCF mode.
  * Added support for RSS HASH configure in DCF mode.
+ * Added support for MTU configure in DCF mode.
 
 * **Updated Mellanox mlx5 driver.**
 

diff --git a/drivers/net/ice/ice_dcf_ethdev.c b/drivers/net/ice/ice_dcf_ethdev.c
index d8b59615145e183563b0558678afa1c3cd6f1ba8..06d752fd616071cf22e1fd169f1e3b431a4eb5d8 100644 (file)
--- a/drivers/net/ice/ice_dcf_ethdev.c
+++ b/drivers/net/ice/ice_dcf_ethdev.c
@@ -1081,6 +1081,19 @@ ice_dcf_link_update(struct rte_eth_dev *dev,
        return rte_eth_linkstatus_set(dev, &new_link);
 }
 
+static int
+ice_dcf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu __rte_unused)
+{
+       /* mtu setting is forbidden if port is start */
+       if (dev->data->dev_started != 0) {
+               PMD_DRV_LOG(ERR, "port %d must be stopped before configuration",
+                           dev->data->port_id);
+               return -EBUSY;
+       }
+
+       return 0;
+}
+
 bool
 ice_dcf_adminq_need_retry(struct ice_adapter *ad)
 {
@@ -1236,6 +1249,7 @@ static const struct eth_dev_ops ice_dcf_eth_dev_ops = {
        .rss_hash_update         = ice_dcf_dev_rss_hash_update,
        .rss_hash_conf_get       = ice_dcf_dev_rss_hash_conf_get,
        .tx_done_cleanup         = ice_tx_done_cleanup,
+       .mtu_set                 = ice_dcf_dev_mtu_set,
 };
 
 static int

diff --git a/drivers/net/ice/ice_dcf_ethdev.h b/drivers/net/ice/ice_dcf_ethdev.h
index 11a1305038db97f15e6801b8d64dc17599fda1c9..f2faf26f58e58fb678dec2d67422eec52e625b77 100644 (file)
--- a/drivers/net/ice/ice_dcf_ethdev.h
+++ b/drivers/net/ice/ice_dcf_ethdev.h
@@ -15,6 +15,12 @@
 
 #define ICE_DCF_MAX_RINGS  1
 
+#define ICE_DCF_FRAME_SIZE_MAX       9728
+#define ICE_DCF_VLAN_TAG_SIZE               4
+#define ICE_DCF_ETH_OVERHEAD \
+       (RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + ICE_DCF_VLAN_TAG_SIZE * 2)
+#define ICE_DCF_ETH_MAX_LEN (RTE_ETHER_MTU + ICE_DCF_ETH_OVERHEAD)
+
 struct ice_dcf_queue {
        uint64_t dummy;
 };