i40e: use frame_sz instead of recalculating truesize for building skb
In skb path truesize is calculated while building skb. This is now avoided and xdp->frame_is used instead for both i40e_build_skb() and i40e_construct_skb(). Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com> Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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@ -2113,11 +2113,6 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
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struct xdp_buff *xdp)
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{
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unsigned int size = xdp->data_end - xdp->data;
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#if (PAGE_SIZE < 8192)
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unsigned int truesize = i40e_rx_pg_size(rx_ring) / 2;
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#else
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unsigned int truesize = SKB_DATA_ALIGN(size);
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#endif
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unsigned int headlen;
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struct sk_buff *skb;
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@ -2162,10 +2157,10 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
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if (size) {
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skb_add_rx_frag(skb, 0, rx_buffer->page,
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rx_buffer->page_offset + headlen,
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size, truesize);
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size, xdp->frame_sz);
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/* buffer is used by skb, update page_offset */
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i40e_rx_buffer_flip(rx_buffer, truesize);
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i40e_rx_buffer_flip(rx_buffer, xdp->frame_sz);
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} else {
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/* buffer is unused, reset bias back to rx_buffer */
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rx_buffer->pagecnt_bias++;
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@ -2188,13 +2183,6 @@ static struct sk_buff *i40e_build_skb(struct i40e_ring *rx_ring,
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struct xdp_buff *xdp)
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{
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unsigned int metasize = xdp->data - xdp->data_meta;
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#if (PAGE_SIZE < 8192)
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unsigned int truesize = i40e_rx_pg_size(rx_ring) / 2;
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#else
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unsigned int truesize = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) +
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SKB_DATA_ALIGN(xdp->data_end -
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xdp->data_hard_start);
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#endif
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struct sk_buff *skb;
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/* Prefetch first cache line of first page. If xdp->data_meta
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@ -2205,7 +2193,7 @@ static struct sk_buff *i40e_build_skb(struct i40e_ring *rx_ring,
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net_prefetch(xdp->data_meta);
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/* build an skb around the page buffer */
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skb = napi_build_skb(xdp->data_hard_start, truesize);
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skb = napi_build_skb(xdp->data_hard_start, xdp->frame_sz);
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if (unlikely(!skb))
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return NULL;
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@ -2216,7 +2204,7 @@ static struct sk_buff *i40e_build_skb(struct i40e_ring *rx_ring,
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skb_metadata_set(skb, metasize);
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/* buffer is used by skb, update page_offset */
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i40e_rx_buffer_flip(rx_buffer, truesize);
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i40e_rx_buffer_flip(rx_buffer, xdp->frame_sz);
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return skb;
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}
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