diff options
| author | Haiyang Zhang <haiyangz@microsoft.com> | 2023-04-12 23:16:02 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-04-14 09:56:19 +0200 |
| commit | 2fbbd712baf1c60996554326728bbdbef5616e12 (patch) | |
| tree | b074988c51c3192313d53c613d6a0e96dc1a4193 /include/net/mana/mana.h | |
| parent | net: mana: Refactor RX buffer allocation code to prepare for various MTU (diff) | |
| download | linux-2fbbd712baf1c60996554326728bbdbef5616e12.tar.xz linux-2fbbd712baf1c60996554326728bbdbef5616e12.zip | |
net: mana: Enable RX path to handle various MTU sizes
Update RX data path to allocate and use RX queue DMA buffers with
proper size based on potentially various MTU sizes.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/mana/mana.h')
| -rw-r--r-- | include/net/mana/mana.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h index 037bcabf6b98..fee99d704281 100644 --- a/include/net/mana/mana.h +++ b/include/net/mana/mana.h @@ -291,6 +291,11 @@ struct mana_recv_buf_oob { struct gdma_posted_wqe_info wqe_inf; }; +#define MANA_RXBUF_PAD (SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) \ + + ETH_HLEN) + +#define MANA_XDP_MTU_MAX (PAGE_SIZE - MANA_RXBUF_PAD - XDP_PACKET_HEADROOM) + struct mana_rxq { struct gdma_queue *gdma_rq; /* Cache the gdma receive queue id */ @@ -300,6 +305,8 @@ struct mana_rxq { u32 rxq_idx; u32 datasize; + u32 alloc_size; + u32 headroom; mana_handle_t rxobj; |