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| author | jmg <jmg@FreeBSD.org> | 2004-09-19 17:45:56 +0000 |
|---|---|---|
| committer | jmg <jmg@FreeBSD.org> | 2004-09-19 17:45:56 +0000 |
| commit | 6c7697503ce2f99ebe7b638b4050cf49f2517f00 (patch) | |
| tree | e954de976e88edcc090c74c7514f0fb363299e26 /sys/pci | |
| parent | 15deca3fae97535705845b6981ed8944f75bc72b (diff) | |
| download | FreeBSD-src-6c7697503ce2f99ebe7b638b4050cf49f2517f00.zip FreeBSD-src-6c7697503ce2f99ebe7b638b4050cf49f2517f00.tar.gz | |
comment requirement that rx/tx descriptor counts must be equal due to
shared code...
define rx descriptor count in terms of tx
align defines
MFC after: 3 days
Diffstat (limited to 'sys/pci')
| -rw-r--r-- | sys/pci/if_rlreg.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/pci/if_rlreg.h b/sys/pci/if_rlreg.h index 35cf5a1..273de102 100644 --- a/sys/pci/if_rlreg.h +++ b/sys/pci/if_rlreg.h @@ -603,8 +603,13 @@ struct rl_stats { uint16_t rl_rx_underruns; }; -#define RL_RX_DESC_CNT 64 +/* + * Rx/Tx descriptor parameters (8139C+ and 8169 only) + * + * Tx/Rx count must be equal. Shared code like re_dma_map_desc assumes this. + */ #define RL_TX_DESC_CNT 64 +#define RL_RX_DESC_CNT RL_RX_DESC_CNT #define RL_RX_LIST_SZ (RL_RX_DESC_CNT * sizeof(struct rl_desc)) #define RL_TX_LIST_SZ (RL_TX_DESC_CNT * sizeof(struct rl_desc)) #define RL_RING_ALIGN 256 @@ -614,8 +619,8 @@ struct rl_stats { #define RL_RXBYTES(x) (le32toh((x)->rl_cmdstat) & sc->rl_rxlenmask) #define RL_PKTSZ(x) ((x)/* >> 3*/) -#define RL_ADDR_LO(y) ((uint64_t) (y) & 0xFFFFFFFF) -#define RL_ADDR_HI(y) ((uint64_t) (y) >> 32) +#define RL_ADDR_LO(y) ((uint64_t) (y) & 0xFFFFFFFF) +#define RL_ADDR_HI(y) ((uint64_t) (y) >> 32) #define RL_JUMBO_FRAMELEN 9018 #define RL_JUMBO_MTU (RL_JUMBO_FRAMELEN-ETHER_HDR_LEN-ETHER_CRC_LEN) |
