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net: mana: Enable RX path to handle various MTU sizes

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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>
This commit is contained in:
Haiyang Zhang
2023-04-12 14:16:02 -07:00
committed by David S. Miller
parent a2917b2349
commit 2fbbd712ba
2 changed files with 35 additions and 10 deletions
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7
include/net/mana/mana.h
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@@ -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;