diff options
| author |   Michael Chan <michael.chan@broadcom.com> | 2019-07-29 06:10:26 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-07-29 14:19:09 -0700 |
| commit | ec4d8e7cf024e42def027531676918048e5c7982 (patch) | |
| tree | d39e9bec4e88e55c5b4bf747d3a9f9bb55a1fe76 /drivers/net/ethernet/broadcom/bnxt/bnxt.h | |
| parent | bnxt_en: Add fast path logic for TPA on 57500 chips. (diff) | |
| download | linux-dev-ec4d8e7cf024e42def027531676918048e5c7982.tar.xz linux-dev-ec4d8e7cf024e42def027531676918048e5c7982.zip | |
bnxt_en: Add TPA ID mapping logic for 57500 chips.
The new TPA feature on 57500 supports a larger number of concurrent TPAs
(up to 1024) divided among the functions. We need to add some logic to
map the hardware TPA ID to a software index that keeps track of each TPA
in progress. A 1:1 direct mapping without translation would be too
wasteful as we would have to allocate 1024 TPA structures for each RX
ring on each PCI function.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 290f42669ba5..309cf99bcda9 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -555,6 +555,7 @@ struct nqe_cn { #define MAX_TPA 64 #define MAX_TPA_P5 256 +#define MAX_TPA_P5_MASK (MAX_TPA_P5 - 1) #define MAX_TPA_SEGS_P5 0x3f #if (BNXT_PAGE_SHIFT == 16) @@ -841,6 +842,13 @@ struct bnxt_tpa_info { struct rx_agg_cmp *agg_arr; }; +#define BNXT_AGG_IDX_BMAP_SIZE (MAX_TPA_P5 / BITS_PER_LONG) + +struct bnxt_tpa_idx_map { + u16 agg_id_tbl[1024]; + unsigned long agg_idx_bmap[BNXT_AGG_IDX_BMAP_SIZE]; +}; + struct bnxt_rx_ring_info { struct bnxt_napi *bnapi; u16 rx_prod; @@ -868,6 +876,7 @@ struct bnxt_rx_ring_info { dma_addr_t rx_agg_desc_mapping[MAX_RX_AGG_PAGES]; struct bnxt_tpa_info *rx_tpa; + struct bnxt_tpa_idx_map *rx_tpa_idx_map; struct bnxt_ring_struct rx_ring_struct; struct bnxt_ring_struct rx_agg_ring_struct; |