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author | Edward Cree <ecree@solarflare.com> | 2018-03-08 15:45:17 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2018-03-08 21:54:52 -0500 |
commit | 42356d9a137bc83268e3988e9f1fdd48dbeef2ef (patch) | |
tree | 8d7976516e62f9864b4040e70f142b59322b55b4 /drivers/net/ethernet/sfc/net_driver.h | |
parent | 84a1d9c4820080bebcbd413a845076dcb62f45fa (diff) | |
download | linux-42356d9a137bc83268e3988e9f1fdd48dbeef2ef.tar.gz linux-42356d9a137bc83268e3988e9f1fdd48dbeef2ef.tar.bz2 linux-42356d9a137bc83268e3988e9f1fdd48dbeef2ef.zip |
sfc: support RSS spreading of ethtool ntuple filters
Use a linked list to associate user-facing context IDs with FW-facing
context IDs (since the latter can change after an MC reset).
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
-rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 44 |
1 files changed, 36 insertions, 8 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index d20a8660ee48..203d64c88de5 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -704,6 +704,28 @@ union efx_multicast_hash { struct vfdi_status; +/* The reserved RSS context value */ +#define EFX_EF10_RSS_CONTEXT_INVALID 0xffffffff +/** + * struct efx_rss_context - A user-defined RSS context for filtering + * @list: node of linked list on which this struct is stored + * @context_id: the RSS_CONTEXT_ID returned by MC firmware, or + * %EFX_EF10_RSS_CONTEXT_INVALID if this context is not present on the NIC. + * For Siena, 0 if RSS is active, else %EFX_EF10_RSS_CONTEXT_INVALID. + * @user_id: the rss_context ID exposed to userspace over ethtool. + * @rx_hash_udp_4tuple: UDP 4-tuple hashing enabled + * @rx_hash_key: Toeplitz hash key for this RSS context + * @indir_table: Indirection table for this RSS context + */ +struct efx_rss_context { + struct list_head list; + u32 context_id; + u32 user_id; + bool rx_hash_udp_4tuple; + u8 rx_hash_key[40]; + u32 rx_indir_table[128]; +}; + /** * struct efx_nic - an Efx NIC * @name: Device name (net device name or bus id before net device registered) @@ -764,11 +786,9 @@ struct vfdi_status; * (valid only for NICs that set %EFX_RX_PKT_PREFIX_LEN; always negative) * @rx_packet_ts_offset: Offset of timestamp from start of packet data * (valid only if channel->sync_timestamps_enabled; always negative) - * @rx_hash_key: Toeplitz hash key for RSS - * @rx_indir_table: Indirection table for RSS * @rx_scatter: Scatter mode enabled for receives - * @rss_active: RSS enabled on hardware - * @rx_hash_udp_4tuple: UDP 4-tuple hashing enabled + * @rss_context: Main RSS context. Its @list member is the head of the list of + * RSS contexts created by user requests * @int_error_count: Number of internal errors seen recently * @int_error_expire: Time at which error count will be expired * @irq_soft_enabled: Are IRQs soft-enabled? If not, IRQ handler will @@ -909,11 +929,8 @@ struct efx_nic { int rx_packet_hash_offset; int rx_packet_len_offset; int rx_packet_ts_offset; - u8 rx_hash_key[40]; - u32 rx_indir_table[128]; bool rx_scatter; - bool rss_active; - bool rx_hash_udp_4tuple; + struct efx_rss_context rss_context; unsigned int_error_count; unsigned long int_error_expire; @@ -1099,6 +1116,10 @@ struct efx_udp_tunnel { * @tx_write: Write TX descriptors and doorbell * @rx_push_rss_config: Write RSS hash key and indirection table to the NIC * @rx_pull_rss_config: Read RSS hash key and indirection table back from the NIC + * @rx_push_rss_context_config: Write RSS hash key and indirection table for + * user RSS context to the NIC + * @rx_pull_rss_context_config: Read RSS hash key and indirection table for user + * RSS context back from the NIC * @rx_probe: Allocate resources for RX queue * @rx_init: Initialise RX queue on the NIC * @rx_remove: Free resources for RX queue @@ -1237,6 +1258,13 @@ struct efx_nic_type { int (*rx_push_rss_config)(struct efx_nic *efx, bool user, const u32 *rx_indir_table, const u8 *key); int (*rx_pull_rss_config)(struct efx_nic *efx); + int (*rx_push_rss_context_config)(struct efx_nic *efx, + struct efx_rss_context *ctx, + const u32 *rx_indir_table, + const u8 *key); + int (*rx_pull_rss_context_config)(struct efx_nic *efx, + struct efx_rss_context *ctx); + void (*rx_restore_rss_contexts)(struct efx_nic *efx); int (*rx_probe)(struct efx_rx_queue *rx_queue); void (*rx_init)(struct efx_rx_queue *rx_queue); void (*rx_remove)(struct efx_rx_queue *rx_queue); |