diff options
| author | Andy Gospodarek <gospo@broadcom.com> | 2018-01-09 16:06:20 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-10 15:27:45 -0500 |
| commit | 6a8788f25625eab31ffa624da2db758ecae6151d (patch) | |
| tree | c27c96955cea4ec9636eb07cf70437c34a810723 /drivers/net/ethernet/broadcom/bnxt/bnxt.h | |
| parent | 8115b750dbcbeb3aa412f18b7a8b0aee4d35b079 (diff) | |
bnxt_en: add support for software dynamic interrupt moderation
This implements the changes needed for the bnxt_en driver to add support
for dynamic interrupt moderation per ring.
This does add additional counters in the receive path, but testing shows
that any additional instructions are offset by throughput gain when the
default configuration is for low latency.
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Acked-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 | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 2d268fc26f5e..89887a88b1bd 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -24,6 +24,7 @@ #include <net/dst_metadata.h> #include <net/switchdev.h> #include <net/xdp.h> +#include <linux/net_dim.h> struct tx_bd { __le32 tx_bd_len_flags_type; @@ -608,6 +609,17 @@ struct bnxt_tx_ring_info { struct bnxt_ring_struct tx_ring_struct; }; +struct bnxt_coal { + u16 coal_ticks; + u16 coal_ticks_irq; + u16 coal_bufs; + u16 coal_bufs_irq; + /* RING_IDLE enabled when coal ticks < idle_thresh */ + u16 idle_thresh; + u8 bufs_per_record; + u8 budget; +}; + struct bnxt_tpa_info { void *data; u8 *data_ptr; @@ -672,6 +684,13 @@ struct bnxt_cp_ring_info { u32 cp_raw_cons; void __iomem *cp_doorbell; + struct bnxt_coal rx_ring_coal; + u64 rx_packets; + u64 rx_bytes; + u64 event_ctr; + + struct net_dim dim; + struct tx_cmp *cp_desc_ring[MAX_CP_PAGES]; dma_addr_t cp_desc_mapping[MAX_CP_PAGES]; @@ -946,17 +965,6 @@ struct bnxt_test_info { #define BNXT_CAG_REG_LEGACY_INT_STATUS 0x4014 #define BNXT_CAG_REG_BASE 0x300000 -struct bnxt_coal { - u16 coal_ticks; - u16 coal_ticks_irq; - u16 coal_bufs; - u16 coal_bufs_irq; - /* RING_IDLE enabled when coal ticks < idle_thresh */ - u16 idle_thresh; - u8 bufs_per_record; - u8 budget; -}; - struct bnxt_tc_flow_stats { u64 packets; u64 bytes; @@ -1128,6 +1136,7 @@ struct bnxt { #define BNXT_FLAG_DOUBLE_DB 0x400000 #define BNXT_FLAG_FW_DCBX_AGENT 0x800000 #define BNXT_FLAG_CHIP_NITRO_A0 0x1000000 + #define BNXT_FLAG_DIM 0x2000000 #define BNXT_FLAG_ALL_CONFIG_FEATS (BNXT_FLAG_TPA | \ BNXT_FLAG_RFS | \ @@ -1425,4 +1434,7 @@ int bnxt_setup_mq_tc(struct net_device *dev, u8 tc); int bnxt_get_max_rings(struct bnxt *, int *, int *, bool); void bnxt_restore_pf_fw_resources(struct bnxt *bp); int bnxt_port_attr_get(struct bnxt *bp, struct switchdev_attr *attr); +void bnxt_dim_work(struct work_struct *work); +int bnxt_hwrm_set_ring_coal(struct bnxt *bp, struct bnxt_napi *bnapi); + #endif |