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sfc: Generalise packet hash lookup to support EF10 RX prefix

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EF10 uses an entirely different RX prefix format from Falcon-arch.
Extend struct efx_nic_type to describe this.

[bwh: Also replace the magic numbers used for the Falcon-arch RX prefix]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Jon Cooper 2012-10-18 15:49:54 +01:00 • committed by Ben Hutchings
parent 64a27752dc
commit 43a3739d55
6 changed files with 28 additions and 13 deletions
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11
drivers/net/ethernet/sfc/net_driver.h
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@ -663,6 +663,9 @@ struct vfdi_status;
* @rx_buffer_order: Order (log2) of number of pages for each RX buffer
* @rx_buffer_truesize: Amortised allocation size of an RX buffer,
* for use in sk_buff::truesize
* @rx_prefix_size: Size of RX prefix before packet data
* @rx_packet_hash_offset: Offset of RX flow hash from start of packet data
* (valid only if @rx_prefix_size != 0; always negative)
* @rx_hash_key: Toeplitz hash key for RSS
* @rx_indir_table: Indirection table for RSS
* @rx_scatter: Scatter mode enabled for receives
@ -793,6 +796,8 @@ struct efx_nic {
unsigned int rx_page_buf_step;
unsigned int rx_bufs_per_page;
unsigned int rx_pages_per_batch;
unsigned int rx_prefix_size;
int rx_packet_hash_offset;
u8 rx_hash_key[40];
u32 rx_indir_table[128];
bool rx_scatter;
@ -1009,7 +1014,8 @@ struct efx_mtd_partition {
* @evq_ptr_tbl_base: Event queue pointer table base address
* @evq_rptr_tbl_base: Event queue read-pointer table base address
* @max_dma_mask: Maximum possible DMA mask
* @rx_buffer_hash_size: Size of hash at start of RX packet
* @rx_prefix_size: Size of RX prefix before packet data
* @rx_hash_offset: Offset of RX flow hash within prefix
* @rx_buffer_padding: Size of padding at end of RX packet
* @can_rx_scatter: NIC is able to scatter packet to multiple buffers
* @max_interrupt_mode: Highest capability interrupt mode supported
@ -1126,7 +1132,8 @@ struct efx_nic_type {
unsigned int evq_ptr_tbl_base;
unsigned int evq_rptr_tbl_base;
u64 max_dma_mask;
unsigned int rx_buffer_hash_size;
unsigned int rx_prefix_size;
unsigned int rx_hash_offset;
unsigned int rx_buffer_padding;
bool can_rx_scatter;
unsigned int max_interrupt_mode;