diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10.c | 26 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/ef100_nic.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/nic_common.h | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/rx_common.c | 18 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/rx_common.h | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/siena.c | 8 |
7 files changed, 57 insertions, 17 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index cf366ed2557c..50d535981a35 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -3990,6 +3990,30 @@ static unsigned int ef10_check_caps(const struct efx_nic *efx, } } +static unsigned int efx_ef10_recycle_ring_size(const struct efx_nic *efx) +{ + unsigned int ret = EFX_RECYCLE_RING_SIZE_10G; + + /* There is no difference between PFs and VFs. The side is based on + * the maximum link speed of a given NIC. + */ + switch (efx->pci_dev->device & 0xfff) { + case 0x0903: /* Farmingdale can do up to 10G */ + break; + case 0x0923: /* Greenport can do up to 40G */ + case 0x0a03: /* Medford can do up to 40G */ + ret *= 4; + break; + default: /* Medford2 can do up to 100G */ + ret *= 10; + } + + if (IS_ENABLED(CONFIG_PPC64)) + ret *= 4; + + return ret; +} + #define EF10_OFFLOAD_FEATURES \ (NETIF_F_IP_CSUM | \ NETIF_F_HW_VLAN_CTAG_FILTER | \ @@ -4106,6 +4130,7 @@ const struct efx_nic_type efx_hunt_a0_vf_nic_type = { .check_caps = ef10_check_caps, .print_additional_fwver = efx_ef10_print_additional_fwver, .sensor_event = efx_mcdi_sensor_event, + .rx_recycle_ring_size = efx_ef10_recycle_ring_size, }; const struct efx_nic_type efx_hunt_a0_nic_type = { @@ -4243,4 +4268,5 @@ const struct efx_nic_type efx_hunt_a0_nic_type = { .check_caps = ef10_check_caps, .print_additional_fwver = efx_ef10_print_additional_fwver, .sensor_event = efx_mcdi_sensor_event, + .rx_recycle_ring_size = efx_ef10_recycle_ring_size, }; diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c index f79b14a119ae..a07cbf45a326 100644 --- a/drivers/net/ethernet/sfc/ef100_nic.c +++ b/drivers/net/ethernet/sfc/ef100_nic.c @@ -23,6 +23,7 @@ #include "ef100_rx.h" #include "ef100_tx.h" #include "ef100_netdev.h" +#include "rx_common.h" #define EF100_MAX_VIS 4096 #define EF100_NUM_MCDI_BUFFERS 1 @@ -696,6 +697,12 @@ static unsigned int ef100_check_caps(const struct efx_nic *efx, } } +static unsigned int efx_ef100_recycle_ring_size(const struct efx_nic *efx) +{ + /* Maximum link speed for Riverhead is 100G */ + return 10 * EFX_RECYCLE_RING_SIZE_10G; +} + /* NIC level access functions */ #define EF100_OFFLOAD_FEATURES (NETIF_F_HW_CSUM | NETIF_F_RXCSUM | \ @@ -770,6 +777,7 @@ const struct efx_nic_type ef100_pf_nic_type = { .rx_push_rss_context_config = efx_mcdi_rx_push_rss_context_config, .rx_pull_rss_context_config = efx_mcdi_rx_pull_rss_context_config, .rx_restore_rss_contexts = efx_mcdi_rx_restore_rss_contexts, + .rx_recycle_ring_size = efx_ef100_recycle_ring_size, .reconfigure_mac = ef100_reconfigure_mac, .reconfigure_port = efx_mcdi_port_reconfigure, @@ -849,6 +857,7 @@ const struct efx_nic_type ef100_vf_nic_type = { .rx_pull_rss_config = efx_mcdi_rx_pull_rss_config, .rx_push_rss_config = efx_mcdi_pf_rx_push_rss_config, .rx_restore_rss_contexts = efx_mcdi_rx_restore_rss_contexts, + .rx_recycle_ring_size = efx_ef100_recycle_ring_size, .reconfigure_mac = ef100_reconfigure_mac, .test_nvram = efx_new_mcdi_nvram_test_all, diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index cc15ee8812d9..c75dc75e2857 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -1282,6 +1282,7 @@ struct efx_udp_tunnel { * @udp_tnl_has_port: Check if a port has been added as UDP tunnel * @print_additional_fwver: Dump NIC-specific additional FW version info * @sensor_event: Handle a sensor event from MCDI + * @rx_recycle_ring_size: Size of the RX recycle ring * @revision: Hardware architecture revision * @txd_ptr_tbl_base: TX descriptor ring base address * @rxd_ptr_tbl_base: RX descriptor ring base address @@ -1460,6 +1461,7 @@ struct efx_nic_type { size_t (*print_additional_fwver)(struct efx_nic *efx, char *buf, size_t len); void (*sensor_event)(struct efx_nic *efx, efx_qword_t *ev); + unsigned int (*rx_recycle_ring_size)(const struct efx_nic *efx); int revision; unsigned int txd_ptr_tbl_base; diff --git a/drivers/net/ethernet/sfc/nic_common.h b/drivers/net/ethernet/sfc/nic_common.h index b9cafe9cd568..0cef35c0c559 100644 --- a/drivers/net/ethernet/sfc/nic_common.h +++ b/drivers/net/ethernet/sfc/nic_common.h @@ -195,6 +195,11 @@ static inline void efx_sensor_event(struct efx_nic *efx, efx_qword_t *ev) efx->type->sensor_event(efx, ev); } +static inline unsigned int efx_rx_recycle_ring_size(const struct efx_nic *efx) +{ + return efx->type->rx_recycle_ring_size(efx); +} + /* Some statistics are computed as A - B where A and B each increase * linearly with some hardware counter(s) and the counters are read * asynchronously. If the counters contributing to B are always read diff --git a/drivers/net/ethernet/sfc/rx_common.c b/drivers/net/ethernet/sfc/rx_common.c index 633ca77a26fd..1b22c7be0088 100644 --- a/drivers/net/ethernet/sfc/rx_common.c +++ b/drivers/net/ethernet/sfc/rx_common.c @@ -23,13 +23,6 @@ module_param(rx_refill_threshold, uint, 0444); MODULE_PARM_DESC(rx_refill_threshold, "RX descriptor ring refill threshold (%)"); -/* Number of RX buffers to recycle pages for. When creating the RX page recycle - * ring, this number is divided by the number of buffers per page to calculate - * the number of pages to store in the RX page recycle ring. - */ -#define EFX_RECYCLE_RING_SIZE_IOMMU 4096 -#define EFX_RECYCLE_RING_SIZE_NOIOMMU (2 * EFX_RX_PREFERRED_BATCH) - /* RX maximum head room required. * * This must be at least 1 to prevent overflow, plus one packet-worth @@ -141,16 +134,7 @@ static void efx_init_rx_recycle_ring(struct efx_rx_queue *rx_queue) unsigned int bufs_in_recycle_ring, page_ring_size; struct efx_nic *efx = rx_queue->efx; - /* Set the RX recycle ring size */ -#ifdef CONFIG_PPC64 - bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_IOMMU; -#else - if (iommu_present(&pci_bus_type)) - bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_IOMMU; - else - bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_NOIOMMU; -#endif /* CONFIG_PPC64 */ - + bufs_in_recycle_ring = efx_rx_recycle_ring_size(efx); page_ring_size = roundup_pow_of_two(bufs_in_recycle_ring / efx->rx_bufs_per_page); rx_queue->page_ring = kcalloc(page_ring_size, diff --git a/drivers/net/ethernet/sfc/rx_common.h b/drivers/net/ethernet/sfc/rx_common.h index 207ccd8ba062..fbd2769307f9 100644 --- a/drivers/net/ethernet/sfc/rx_common.h +++ b/drivers/net/ethernet/sfc/rx_common.h @@ -18,6 +18,12 @@ #define EFX_RX_MAX_FRAGS DIV_ROUND_UP(EFX_MAX_FRAME_LEN(EFX_MAX_MTU), \ EFX_RX_USR_BUF_SIZE) +/* Number of RX buffers to recycle pages for. When creating the RX page recycle + * ring, this number is divided by the number of buffers per page to calculate + * the number of pages to store in the RX page recycle ring. + */ +#define EFX_RECYCLE_RING_SIZE_10G 256 + static inline u8 *efx_rx_buf_va(struct efx_rx_buffer *buf) { return page_address(buf->page) + buf->page_offset; diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c index 16347a6d0c47..ce3060e15b54 100644 --- a/drivers/net/ethernet/sfc/siena.c +++ b/drivers/net/ethernet/sfc/siena.c @@ -25,6 +25,7 @@ #include "mcdi_port_common.h" #include "selftest.h" #include "siena_sriov.h" +#include "rx_common.h" /* Hardware control for SFC9000 family including SFL9021 (aka Siena). */ @@ -958,6 +959,12 @@ static unsigned int siena_check_caps(const struct efx_nic *efx, return 0; } +static unsigned int efx_siena_recycle_ring_size(const struct efx_nic *efx) +{ + /* Maximum link speed is 10G */ + return EFX_RECYCLE_RING_SIZE_10G; +} + /************************************************************************** * * Revision-dependent attributes used by efx.c and nic.c @@ -1098,4 +1105,5 @@ const struct efx_nic_type siena_a0_nic_type = { .rx_hash_key_size = 16, .check_caps = siena_check_caps, .sensor_event = efx_mcdi_sensor_event, + .rx_recycle_ring_size = efx_siena_recycle_ring_size, }; |