kernel/drivers/net/ethernet/sfc/rx_common.h, branch linux-6.18.y

sfc: use new rxfh_context API

2024-06-29T01:53:21Z

The core is now responsible for allocating IDs and a memory region for us to store our state (struct efx_rss_context_priv), so we no longer need efx_alloc_rss_context_entry() and friends. Since the contexts are now maintained by the core, use the core's lock (net_dev->ethtool->rss_lock), rather than our own mutex (efx->rss_lock), to serialise access against changes; and remove the now-unused efx->rss_lock from struct efx_nic. Signed-off-by: Edward Cree Reviewed-by: Przemek Kitszel Link: https://patch.msgid.link/150274740ea8cc137fef5502541ce573d32fb319.1719502240.git.ecree.xilinx@gmail.com Signed-off-by: Jakub Kicinski

sfc: The size of the RX recycle ring should be more flexible

2022-02-02T04:34:59Z

Ideally the size would depend on the link speed, but the recycle ring is created when the interface is brought up before the driver knows the link speed. So size it for the maximum speed of a given NIC. PowerPC is only supported on SFN7xxx and SFN8xxx NICs. With this patch on a 40G NIC the number of calls to alloc_pages and friends went down from about 18% to under 2%. On a 10G NIC the number of calls to alloc_pages and friends went down from about 15% to 0 (perf did not capture any calls during the 60 second test). On a 100G NIC the number of calls to alloc_pages and friends went down from about 23% to 4%. Reported-by: Íñigo Huguet Signed-off-by: Martin Habets Link: https://lore.kernel.org/r/20220131111054.cp4f6foyinaarwbn@gmail.com Signed-off-by: Jakub Kicinski

sfc: commonise efx_sync_rx_buffer()

2020-06-30T20:09:09Z

The ef100 RX path will also need to DMA-sync RX buffers. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: extend common GRO interface to support CHECKSUM_COMPLETE

2020-06-30T00:37:49Z

EF100 will use CHECKSUM_COMPLETE, but will also make use of efx_rx_packet_gro(), thus needs to be able to pass the checksum value into that function. Drivers for older NICs pass in a csum of 0 to get the old semantics (use the RX flags for CHECKSUM_UNNECESSARY marking). Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: commonise ARFS handling

2020-06-30T00:37:49Z

EF100 will use the same approach to ARFS as EF10. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: move RPS code

2020-01-10T19:24:37Z

Includes a couple of filtering functions and also renames a constant. Style fixes included. Signed-off-by: Alexandru-Mihai Maftei Signed-off-by: David S. Miller

sfc: move RSS code

2020-01-10T19:24:37Z

Style fixes included. Signed-off-by: Alexandru-Mihai Maftei Signed-off-by: David S. Miller

sfc: move more rx code

2020-01-10T19:24:37Z

Page recycling code and GRO packet receipt code were moved. One function contains code extracted from another. Code style fixes included. Signed-off-by: Alexandru-Mihai Maftei Signed-off-by: David S. Miller

sfc: add new headers in preparation for code split

2020-01-08T21:28:02Z

New headers contain prototypes of functions that will be common between ef10 and upcoming driver. Removed static modifier from the affected functions. Some function prototypes were removed from existing headers. Signed-off-by: Alexandru-Mihai Maftei Signed-off-by: David S. Miller