diff options
| author | Alex Maftei (amaftei) <amaftei@solarflare.com> | 2020-01-08 16:10:32 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-08 13:28:02 -0800 |
| commit | e1253f391042e34de66faf7d499595c00f99a076 (patch) | |
| tree | ee9afcfab438b6f9da3567822f543ed1e9088280 /drivers/net/ethernet/sfc/rx_common.h | |
| parent | b9ae51273655a72a12fba730843fd72fb132735a (diff) | |
sfc: add new headers in preparation for code split
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 <amaftei@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/rx_common.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/rx_common.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/rx_common.h b/drivers/net/ethernet/sfc/rx_common.h new file mode 100644 index 000000000000..8b23a7accea1 --- /dev/null +++ b/drivers/net/ethernet/sfc/rx_common.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/**************************************************************************** + * Driver for Solarflare network controllers and boards + * Copyright 2018 Solarflare Communications Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation, incorporated herein by reference. + */ + +#ifndef EFX_RX_COMMON_H +#define EFX_RX_COMMON_H + +/* Preferred number of descriptors to fill at once */ +#define EFX_RX_PREFERRED_BATCH 8U + +/* Each packet can consume up to ceil(max_frame_len / buffer_size) buffers */ +#define EFX_RX_MAX_FRAGS DIV_ROUND_UP(EFX_MAX_FRAME_LEN(EFX_MAX_MTU), \ + EFX_RX_USR_BUF_SIZE) + +void efx_rx_slow_fill(struct timer_list *t); + +int efx_probe_rx_queue(struct efx_rx_queue *rx_queue); +void efx_init_rx_queue(struct efx_rx_queue *rx_queue); +void efx_fini_rx_queue(struct efx_rx_queue *rx_queue); +void efx_remove_rx_queue(struct efx_rx_queue *rx_queue); +void efx_destroy_rx_queue(struct efx_rx_queue *rx_queue); + +void efx_init_rx_buffer(struct efx_rx_queue *rx_queue, + struct page *page, + unsigned int page_offset, + u16 flags); +void efx_unmap_rx_buffer(struct efx_nic *efx, struct efx_rx_buffer *rx_buf); +void efx_free_rx_buffers(struct efx_rx_queue *rx_queue, + struct efx_rx_buffer *rx_buf, + unsigned int num_bufs); + +void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue); +void efx_rx_config_page_split(struct efx_nic *efx); +void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue, bool atomic); + +#endif |