diff options
Diffstat (limited to 'sys/dev/bxe/if_bxe.h')
| -rw-r--r-- | sys/dev/bxe/if_bxe.h | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/sys/dev/bxe/if_bxe.h b/sys/dev/bxe/if_bxe.h index 107836c..dea8c94 100644 --- a/sys/dev/bxe/if_bxe.h +++ b/sys/dev/bxe/if_bxe.h @@ -310,16 +310,22 @@ struct bxe_type { /* Receive Buffer Descriptor (rx_bd) definitions. */ #define NUM_RX_PAGES 2 + /* 512 (0x200) of 8 byte bds in 4096 byte page. */ #define TOTAL_RX_BD_PER_PAGE (BCM_PAGE_SIZE / sizeof(struct eth_rx_bd)) + /* 510 (0x1fe) = 512 - 2 */ #define USABLE_RX_BD_PER_PAGE (TOTAL_RX_BD_PER_PAGE - 2) + /* 1024 (0x400) */ #define TOTAL_RX_BD (TOTAL_RX_BD_PER_PAGE * NUM_RX_PAGES) + /* 1020 (0x3fc) = 1024 - 4 */ #define USABLE_RX_BD (USABLE_RX_BD_PER_PAGE * NUM_RX_PAGES) + /* 1023 (0x3ff) = 1024 -1 */ #define MAX_RX_BD (TOTAL_RX_BD - 1) + /* 511 (0x1ff) = 512 - 1 */ #define RX_DESC_MASK (TOTAL_RX_BD_PER_PAGE - 1) @@ -333,23 +339,28 @@ struct bxe_type { /* Receive Completion Queue definitions. */ -/* CQEs are 4 times larger (32 bytes) than rx_bd's (8 bytes). 8pages. */ +/* CQEs (32 bytes) are 4 times larger than rx_bd's (8 bytes). */ #define NUM_RCQ_PAGES (NUM_RX_PAGES * 4) + /* 128 (0x80) */ #define TOTAL_RCQ_ENTRIES_PER_PAGE \ (BCM_PAGE_SIZE / sizeof(union eth_rx_cqe)) + /* 127 (0x7f)for the next page RCQ bd */ #define USABLE_RCQ_ENTRIES_PER_PAGE (TOTAL_RCQ_ENTRIES_PER_PAGE - 1) + /* 1024 (0x400) */ #define TOTAL_RCQ_ENTRIES (TOTAL_RCQ_ENTRIES_PER_PAGE * NUM_RCQ_PAGES) + /* 1016 (0x3f8) */ #define USABLE_RCQ_ENTRIES (USABLE_RCQ_ENTRIES_PER_PAGE * NUM_RCQ_PAGES) + /* 1023 (0x3ff) */ #define MAX_RCQ_ENTRIES (TOTAL_RCQ_ENTRIES - 1) #define NEXT_RCQ_IDX(x) \ ((((x) & USABLE_RCQ_ENTRIES_PER_PAGE) == \ - (USABLE_RCQ_ENTRIES_PER_PAGE-1)) ? (x) + 2 : (x) + 1) + (USABLE_RCQ_ENTRIES_PER_PAGE - 1)) ? (x) + 2 : (x) + 1) #define RCQ_ENTRY(x) ((x) & MAX_RCQ_ENTRIES) #define RCQ_PAGE(x) (((x) & ~USABLE_RCQ_ENTRIES_PER_PAGE) >> 7) #define RCQ_IDX(x) ((x) & USABLE_RCQ_ENTRIES_PER_PAGE) @@ -957,10 +968,10 @@ struct bxe_fastpath { struct mbuf *rx_mbuf_ptr[TOTAL_RX_BD]; /* Hardware maintained Completion Queue (CQ) chains. */ - bus_dma_tag_t rx_comp_chain_tag; - bus_dmamap_t rx_comp_chain_map[NUM_RCQ_PAGES]; - union eth_rx_cqe *rx_comp_chain[NUM_RCQ_PAGES]; - bus_addr_t rx_comp_chain_paddr[NUM_RCQ_PAGES]; + bus_dma_tag_t rx_cq_chain_tag; + bus_dmamap_t rx_cq_chain_map[NUM_RCQ_PAGES]; + union eth_rx_cqe *rx_cq_chain[NUM_RCQ_PAGES]; + bus_addr_t rx_cq_chain_paddr[NUM_RCQ_PAGES]; /* Taskqueue reqources. */ struct task task; @@ -999,10 +1010,8 @@ struct bxe_fastpath { /* Transmit packet consumer index. */ uint16_t tx_pkt_cons; - /* Transmit buffer descriptor producer index. */ + /* Transmit buffer descriptor prod/cons indices. */ uint16_t tx_bd_prod; - - /* Transmit buffer descriptor consumer index. */ uint16_t tx_bd_cons; /* Driver's copy of the fastpath CSTORM/USTORM indices. */ @@ -1014,8 +1023,8 @@ struct bxe_fastpath { uint16_t rx_bd_cons; /* Driver's copy of the receive completion queue prod/cons indices. */ - uint16_t rx_comp_prod; - uint16_t rx_comp_cons; + uint16_t rx_cq_prod; + uint16_t rx_cq_cons; /* Pointer to the receive consumer index in the status block. */ uint16_t *rx_cons_sb; @@ -1095,6 +1104,7 @@ struct bxe_fastpath { uint64_t tpa_queue_used; #endif + /* FreeBSD interface statistics. */ unsigned long soft_rx_errors; unsigned long soft_tx_errors; |
