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linux/drivers/net/ethernet/sfc/tx_common.h

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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>
2020-01-08 16:10:32 +00:00
/* 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_TX_COMMON_H
#define EFX_TX_COMMON_H
int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
struct efx_tx_buffer *buffer,
unsigned int *pkts_compl,
sfc: support passing a representor to the EF100 TX path A non-null efv in __ef100_enqueue_skb() indicates that the packet is from that representor, should be transmitted with a suitable option descriptor (to instruct the switch to deliver it to the representee), and should not be accounted to the parent PF's stats or BQL. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20 19:33:47 +01:00
unsigned int *bytes_compl,
unsigned int *efv_pkts_compl);
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>
2020-01-08 16:10:32 +00:00
sfc: complete the next packet when we receive a timestamp We now ignore the "completion" event when using tx queue timestamping, and only pay attention to the two (high and low) timestamp events. The NIC will send a pair of timestamp events for every packet transmitted. The current firmware may merge the completion events, and it is possible that future versions may reorder the completion and timestamp events. As such the completion event is not useful. Without this patch in place a merged completion event on a queue with timestamping will cause a "spurious TX completion" error. This affects SFN8000-series adapters. Signed-off-by: Tom Zhao <tzhao@solarflare.com> Acked-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 11:38:45 +00:00
static inline bool efx_tx_buffer_in_use(struct efx_tx_buffer *buffer)
{
return buffer->len || (buffer->flags & EFX_TX_BUF_OPTION);
}
void efx_xmit_done_check_empty(struct efx_tx_queue *tx_queue);
sfc: move more tx code The code that handles transmission finalization will also be common. Signed-off-by: Alexandru-Mihai Maftei <amaftei@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-10 13:26:46 +00:00
void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
sfc: move a couple more functions Signed-off-by: Alexandru-Mihai Maftei <amaftei@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-10 13:27:50 +00:00
void efx_enqueue_unwind(struct efx_tx_queue *tx_queue,
unsigned int insert_count);
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>
2020-01-08 16:10:32 +00:00
struct efx_tx_buffer *efx_tx_map_chunk(struct efx_tx_queue *tx_queue,
dma_addr_t dma_addr, size_t len);
sfc: factor out efx_tx_tso_header_length() and understand encapsulation ef100 will need to check this against NIC limits. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:13:15 +01:00
int efx_tx_tso_header_length(struct sk_buff *skb);
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>
2020-01-08 16:10:32 +00:00
int efx_tx_map_data(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
unsigned int segment_count);
unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
sfc: commonise TSO fallback code ef100 will need this if it gets GSO skbs it can't handle (e.g. too long header length). Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:12:17 +01:00
int efx_tx_tso_fallback(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
sfc: skeleton EF100 PF driver No TX or RX path, no MCDI, not even an ifup/down handler. Besides stubs, the bulk of the patch deals with reading the Xilinx extended PCIe capability, which tells us where to find our BAR. Though in the same module, EF100 has its own struct pci_driver, which is named sfc_ef100. A small number of additional nic_type methods are added; those in the TX (tx_enqueue) and RX (rx_packet) paths are called through indirect call wrappers to minimise the performance impact. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 12:55:55 +01:00
extern bool efx_separate_tx_channels;
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>
2020-01-08 16:10:32 +00:00
#endif
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