diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2023-12-08 07:10:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-12-10 22:31:41 +0300 |
| commit | 6a203cb5165d2257e8d54193b69afdb480a17f6f (patch) | |
| tree | 17917ce1527c8cf84414df6ec532c0daaa6ee5f1 /drivers/net/ethernet/renesas/rswitch.h | |
| parent | 8857034184538ca92b0e029f6f56e5e04f518ad2 (diff) | |
| download | linux-6a203cb5165d2257e8d54193b69afdb480a17f6f.tar.xz | |
net: rswitch: Use build_skb() for RX
If this hardware receives a jumbo frame like 2KiB or more, it will be
split into multiple queues. In the near future, to support this, use
build_skb() instead of netdev_alloc_skb_ip_align().
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/renesas/rswitch.h')
| -rw-r--r-- | drivers/net/ethernet/renesas/rswitch.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/net/ethernet/renesas/rswitch.h b/drivers/net/ethernet/renesas/rswitch.h index f1c7f7cdefc2..a407d85dcfad 100644 --- a/drivers/net/ethernet/renesas/rswitch.h +++ b/drivers/net/ethernet/renesas/rswitch.h @@ -29,8 +29,13 @@ #define RX_RING_SIZE 1024 #define TS_RING_SIZE (TX_RING_SIZE * RSWITCH_NUM_PORTS) -#define PKT_BUF_SZ 1584 +#define RSWITCH_HEADROOM (NET_SKB_PAD + NET_IP_ALIGN) +#define RSWITCH_DESC_BUF_SIZE 2048 +#define RSWITCH_TAILROOM SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) #define RSWITCH_ALIGN 128 +#define RSWITCH_BUF_SIZE (RSWITCH_HEADROOM + RSWITCH_DESC_BUF_SIZE + \ + RSWITCH_TAILROOM + RSWITCH_ALIGN) +#define RSWITCH_MAP_BUF_SIZE (RSWITCH_BUF_SIZE - RSWITCH_HEADROOM) #define RSWITCH_MAX_CTAG_PCP 7 #define RSWITCH_TIMEOUT_US 100000 @@ -945,8 +950,18 @@ struct rswitch_gwca_queue { /* For [rt]x_ring */ unsigned int index; bool dir_tx; - struct sk_buff **skbs; struct net_device *ndev; /* queue to ndev for irq */ + + union { + /* For TX */ + struct { + struct sk_buff **skbs; + }; + /* For RX */ + struct { + void **rx_bufs; + }; + }; }; struct rswitch_gwca_ts_info { |