fm10k: remove mbuf size sanity check

Original implementation required mbuf size should be greater than
ETHER_MAX_VLAN_FRAME_LEN, which is not necessary. If it's less
than that value, scatter function will be selected and incoming
packets greater than mbuf size will be filled into several mbufs.

Signed-off-by: Chen Jing D(Mark) <jing.d.chen@intel.com>
Acked-by: Michael Qiu <michael.qiu@intel.com>

diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index 2678190..ae832bd 100644 (file)
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -1011,9 +1011,7 @@ handle_rxconf(struct fm10k_rx_queue *q, const struct rte_eth_rxconf *conf)
  *  2. Address is 8B aligned and buffer does not cross 4K boundary.
  *
  * As such, the driver may need to adjust the DMA address within the
- * buffer by up to 512B. The mempool element size is checked here
- * to make sure a maximally sized Ethernet frame can still be wholly
- * contained within the buffer after 512B alignment.
+ * buffer by up to 512B.
  *
  * return 1 if the element size is valid, otherwise return 0.
  */
@@ -1033,9 +1031,6 @@ mempool_element_size_valid(struct rte_mempool *mp)
        if (min_size > mp->elt_size)
                return 0;
 
-       if (min_size < ETHER_MAX_VLAN_FRAME_LEN)
-               return 0;
-
        /* size is valid */
        return 1;
 }