From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/net/ethernet/sfc/nic.h | 318 +---------------------------------------------------
1 files changed, 9 insertions(+), 309 deletions(-)
diff --git a/kernel/drivers/net/ethernet/sfc/nic.h b/kernel/drivers/net/ethernet/sfc/nic.h
index 5cca055..5c2fe3c 100644
--- a/kernel/drivers/net/ethernet/sfc/nic.h
+++ b/kernel/drivers/net/ethernet/sfc/nic.h
@@ -1,142 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2005-2006 Fen Systems Ltd.
* Copyright 2006-2013 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_NIC_H
#define EFX_NIC_H
-#include <linux/net_tstamp.h>
-#include <linux/i2c-algo-bit.h>
-#include "net_driver.h"
+#include "nic_common.h"
#include "efx.h"
-#include "mcdi.h"
-
-enum {
- /* Revisions 0-2 were Falcon A0, A1 and B0 respectively.
- * They are not supported by this driver but these revision numbers
- * form part of the ethtool API for register dumping.
- */
- EFX_REV_SIENA_A0 = 3,
- EFX_REV_HUNT_A0 = 4,
-};
-
-static inline int efx_nic_rev(struct efx_nic *efx)
-{
- return efx->type->revision;
-}
u32 efx_farch_fpga_ver(struct efx_nic *efx);
-
-/* Read the current event from the event queue */
-static inline efx_qword_t *efx_event(struct efx_channel *channel,
- unsigned int index)
-{
- return ((efx_qword_t *) (channel->eventq.buf.addr)) +
- (index & channel->eventq_mask);
-}
-
-/* See if an event is present
- *
- * We check both the high and low dword of the event for all ones. We
- * wrote all ones when we cleared the event, and no valid event can
- * have all ones in either its high or low dwords. This approach is
- * robust against reordering.
- *
- * Note that using a single 64-bit comparison is incorrect; even
- * though the CPU read will be atomic, the DMA write may not be.
- */
-static inline int efx_event_present(efx_qword_t *event)
-{
- return !(EFX_DWORD_IS_ALL_ONES(event->dword[0]) |
- EFX_DWORD_IS_ALL_ONES(event->dword[1]));
-}
-
-/* Returns a pointer to the specified transmit descriptor in the TX
- * descriptor queue belonging to the specified channel.
- */
-static inline efx_qword_t *
-efx_tx_desc(struct efx_tx_queue *tx_queue, unsigned int index)
-{
- return ((efx_qword_t *) (tx_queue->txd.buf.addr)) + index;
-}
-
-/* Get partner of a TX queue, seen as part of the same net core queue */
-static struct efx_tx_queue *efx_tx_queue_partner(struct efx_tx_queue *tx_queue)
-{
- if (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD)
- return tx_queue - EFX_TXQ_TYPE_OFFLOAD;
- else
- return tx_queue + EFX_TXQ_TYPE_OFFLOAD;
-}
-
-/* Report whether this TX queue would be empty for the given write_count.
- * May return false negative.
- */
-static inline bool __efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue,
- unsigned int write_count)
-{
- unsigned int empty_read_count = READ_ONCE(tx_queue->empty_read_count);
-
- if (empty_read_count == 0)
- return false;
-
- return ((empty_read_count ^ write_count) & ~EFX_EMPTY_COUNT_VALID) == 0;
-}
-
-/* Report whether the NIC considers this TX queue empty, using
- * packet_write_count (the write count recorded for the last completable
- * doorbell push). May return false negative. EF10 only, which is OK
- * because only EF10 supports PIO.
- */
-static inline bool efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue)
-{
- EFX_WARN_ON_ONCE_PARANOID(!tx_queue->efx->type->option_descriptors);
- return __efx_nic_tx_is_empty(tx_queue, tx_queue->packet_write_count);
-}
-
-/* Decide whether we can use TX PIO, ie. write packet data directly into
- * a buffer on the device. This can reduce latency at the expense of
- * throughput, so we only do this if both hardware and software TX rings
- * are empty. This also ensures that only one packet at a time can be
- * using the PIO buffer.
- */
-static inline bool efx_nic_may_tx_pio(struct efx_tx_queue *tx_queue)
-{
- struct efx_tx_queue *partner = efx_tx_queue_partner(tx_queue);
-
- return tx_queue->piobuf && efx_nic_tx_is_empty(tx_queue) &&
- efx_nic_tx_is_empty(partner);
-}
-
-/* Decide whether to push a TX descriptor to the NIC vs merely writing
- * the doorbell. This can reduce latency when we are adding a single
- * descriptor to an empty queue, but is otherwise pointless. Further,
- * Falcon and Siena have hardware bugs (SF bug 33851) that may be
- * triggered if we don't check this.
- * We use the write_count used for the last doorbell push, to get the
- * NIC's view of the tx queue.
- */
-static inline bool efx_nic_may_push_tx_desc(struct efx_tx_queue *tx_queue,
- unsigned int write_count)
-{
- bool was_empty = __efx_nic_tx_is_empty(tx_queue, write_count);
-
- tx_queue->empty_read_count = 0;
- return was_empty && tx_queue->write_count - write_count == 1;
-}
-
-/* Returns a pointer to the specified descriptor in the RX descriptor queue */
-static inline efx_qword_t *
-efx_rx_desc(struct efx_rx_queue *rx_queue, unsigned int index)
-{
- return ((efx_qword_t *) (rx_queue->rxd.buf.addr)) + index;
-}
enum {
PHY_TYPE_NONE = 0,
@@ -148,18 +23,6 @@
PHY_TYPE_SFT9001A = 8,
PHY_TYPE_QT2025C = 9,
PHY_TYPE_SFT9001B = 10,
-};
-
-/* Alignment of PCIe DMA boundaries (4KB) */
-#define EFX_PAGE_SIZE 4096
-/* Size and alignment of buffer table entries (same) */
-#define EFX_BUF_SIZE EFX_PAGE_SIZE
-
-/* NIC-generic software stats */
-enum {
- GENERIC_STAT_rx_noskb_drops,
- GENERIC_STAT_rx_nodesc_trunc,
- GENERIC_STAT_COUNT
};
enum {
@@ -363,10 +226,6 @@
* @warm_boot_count: Last seen MC warm boot count
* @vi_base: Absolute index of first VI in this function
* @n_allocated_vis: Number of VIs allocated to this function
- * @must_realloc_vis: Flag: VIs have yet to be reallocated after MC reboot
- * @must_restore_rss_contexts: Flag: RSS contexts have yet to be restored after
- * MC reboot
- * @must_restore_filters: Flag: filters have yet to be restored after MC reboot
* @n_piobufs: Number of PIO buffers allocated to this function
* @wc_membase: Base address of write-combining mapping of the memory BAR
* @pio_write_base: Base address for writing PIO buffers
@@ -375,7 +234,7 @@
* @piobuf_size: size of a single PIO buffer
* @must_restore_piobufs: Flag: PIO buffers have yet to be restored after MC
* reboot
- * @rx_rss_context_exclusive: Whether our RSS context is exclusive or shared
+ * @mc_stats: Scratch buffer for converting statistics to the kernel's format
* @stats: Hardware statistics
* @workaround_35388: Flag: firmware supports workaround for bug 35388
* @workaround_26807: Flag: firmware supports workaround for bug 26807
@@ -388,7 +247,6 @@
* %MC_CMD_GET_CAPABILITIES response)
* @rx_dpcpu_fw_id: Firmware ID of the RxDPCPU
* @tx_dpcpu_fw_id: Firmware ID of the TxDPCPU
- * @vport_id: The function's vport ID, only relevant for PFs
* @must_probe_vswitching: Flag: vswitching has yet to be setup after MC reboot
* @pf_index: The number for this PF, or the parent PF if this is a VF
#ifdef CONFIG_SFC_SRIOV
@@ -407,16 +265,13 @@
u16 warm_boot_count;
unsigned int vi_base;
unsigned int n_allocated_vis;
- bool must_realloc_vis;
- bool must_restore_rss_contexts;
- bool must_restore_filters;
unsigned int n_piobufs;
void __iomem *wc_membase, *pio_write_base;
unsigned int pio_write_vi_base;
unsigned int piobuf_handle[EF10_TX_PIOBUF_COUNT];
u16 piobuf_size;
bool must_restore_piobufs;
- bool rx_rss_context_exclusive;
+ __le64 *mc_stats;
u64 stats[EF10_STAT_COUNT];
bool workaround_35388;
bool workaround_26807;
@@ -426,7 +281,6 @@
u32 datapath_caps2;
unsigned int rx_dpcpu_fw_id;
unsigned int tx_dpcpu_fw_id;
- unsigned int vport_id;
bool must_probe_vswitching;
unsigned int pf_index;
u8 port_id[ETH_ALEN];
@@ -443,121 +297,18 @@
u64 licensed_features;
};
+/* TSOv2 */
+int efx_ef10_tx_tso_desc(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
+ bool *data_mapped);
+
int efx_init_sriov(void);
void efx_fini_sriov(void);
-struct ethtool_ts_info;
-int efx_ptp_probe(struct efx_nic *efx, struct efx_channel *channel);
-void efx_ptp_defer_probe_with_channel(struct efx_nic *efx);
-struct efx_channel *efx_ptp_channel(struct efx_nic *efx);
-void efx_ptp_remove(struct efx_nic *efx);
-int efx_ptp_set_ts_config(struct efx_nic *efx, struct ifreq *ifr);
-int efx_ptp_get_ts_config(struct efx_nic *efx, struct ifreq *ifr);
-void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info);
-bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
-int efx_ptp_get_mode(struct efx_nic *efx);
-int efx_ptp_change_mode(struct efx_nic *efx, bool enable_wanted,
- unsigned int new_mode);
-int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
-void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev);
-size_t efx_ptp_describe_stats(struct efx_nic *efx, u8 *strings);
-size_t efx_ptp_update_stats(struct efx_nic *efx, u64 *stats);
-void efx_time_sync_event(struct efx_channel *channel, efx_qword_t *ev);
-void __efx_rx_skb_attach_timestamp(struct efx_channel *channel,
- struct sk_buff *skb);
-static inline void efx_rx_skb_attach_timestamp(struct efx_channel *channel,
- struct sk_buff *skb)
-{
- if (channel->sync_events_state == SYNC_EVENTS_VALID)
- __efx_rx_skb_attach_timestamp(channel, skb);
-}
-void efx_ptp_start_datapath(struct efx_nic *efx);
-void efx_ptp_stop_datapath(struct efx_nic *efx);
-bool efx_ptp_use_mac_tx_timestamps(struct efx_nic *efx);
-ktime_t efx_ptp_nic_to_kernel_time(struct efx_tx_queue *tx_queue);
-
-extern const struct efx_nic_type falcon_a1_nic_type;
-extern const struct efx_nic_type falcon_b0_nic_type;
extern const struct efx_nic_type siena_a0_nic_type;
extern const struct efx_nic_type efx_hunt_a0_nic_type;
extern const struct efx_nic_type efx_hunt_a0_vf_nic_type;
-/**************************************************************************
- *
- * Externs
- *
- **************************************************************************
- */
-
int falcon_probe_board(struct efx_nic *efx, u16 revision_info);
-
-/* TX data path */
-static inline int efx_nic_probe_tx(struct efx_tx_queue *tx_queue)
-{
- return tx_queue->efx->type->tx_probe(tx_queue);
-}
-static inline void efx_nic_init_tx(struct efx_tx_queue *tx_queue)
-{
- tx_queue->efx->type->tx_init(tx_queue);
-}
-static inline void efx_nic_remove_tx(struct efx_tx_queue *tx_queue)
-{
- tx_queue->efx->type->tx_remove(tx_queue);
-}
-static inline void efx_nic_push_buffers(struct efx_tx_queue *tx_queue)
-{
- tx_queue->efx->type->tx_write(tx_queue);
-}
-
-/* RX data path */
-static inline int efx_nic_probe_rx(struct efx_rx_queue *rx_queue)
-{
- return rx_queue->efx->type->rx_probe(rx_queue);
-}
-static inline void efx_nic_init_rx(struct efx_rx_queue *rx_queue)
-{
- rx_queue->efx->type->rx_init(rx_queue);
-}
-static inline void efx_nic_remove_rx(struct efx_rx_queue *rx_queue)
-{
- rx_queue->efx->type->rx_remove(rx_queue);
-}
-static inline void efx_nic_notify_rx_desc(struct efx_rx_queue *rx_queue)
-{
- rx_queue->efx->type->rx_write(rx_queue);
-}
-static inline void efx_nic_generate_fill_event(struct efx_rx_queue *rx_queue)
-{
- rx_queue->efx->type->rx_defer_refill(rx_queue);
-}
-
-/* Event data path */
-static inline int efx_nic_probe_eventq(struct efx_channel *channel)
-{
- return channel->efx->type->ev_probe(channel);
-}
-static inline int efx_nic_init_eventq(struct efx_channel *channel)
-{
- return channel->efx->type->ev_init(channel);
-}
-static inline void efx_nic_fini_eventq(struct efx_channel *channel)
-{
- channel->efx->type->ev_fini(channel);
-}
-static inline void efx_nic_remove_eventq(struct efx_channel *channel)
-{
- channel->efx->type->ev_remove(channel);
-}
-static inline int
-efx_nic_process_eventq(struct efx_channel *channel, int quota)
-{
- return channel->efx->type->ev_process(channel, quota);
-}
-static inline void efx_nic_eventq_read_ack(struct efx_channel *channel)
-{
- channel->efx->type->ev_read_ack(channel);
-}
-void efx_nic_event_test_start(struct efx_channel *channel);
/* Falcon/Siena queue operations */
int efx_farch_tx_probe(struct efx_tx_queue *tx_queue);
@@ -608,31 +359,6 @@
#endif
void efx_farch_filter_sync_rx_mode(struct efx_nic *efx);
-bool efx_nic_event_present(struct efx_channel *channel);
-
-/* Some statistics are computed as A - B where A and B each increase
- * linearly with some hardware counter(s) and the counters are read
- * asynchronously. If the counters contributing to B are always read
- * after those contributing to A, the computed value may be lower than
- * the true value by some variable amount, and may decrease between
- * subsequent computations.
- *
- * We should never allow statistics to decrease or to exceed the true
- * value. Since the computed value will never be greater than the
- * true value, we can achieve this by only storing the computed value
- * when it increases.
- */
-static inline void efx_update_diff_stat(u64 *stat, u64 diff)
-{
- if ((s64)(diff - *stat) > 0)
- *stat = diff;
-}
-
-/* Interrupts */
-int efx_nic_init_interrupt(struct efx_nic *efx);
-int efx_nic_irq_test_start(struct efx_nic *efx);
-void efx_nic_fini_interrupt(struct efx_nic *efx);
-
/* Falcon/Siena interrupts */
void efx_farch_irq_enable_master(struct efx_nic *efx);
int efx_farch_irq_test_generate(struct efx_nic *efx);
@@ -641,17 +367,7 @@
irqreturn_t efx_farch_legacy_interrupt(int irq, void *dev_id);
irqreturn_t efx_farch_fatal_interrupt(struct efx_nic *efx);
-static inline int efx_nic_event_test_irq_cpu(struct efx_channel *channel)
-{
- return READ_ONCE(channel->event_test_cpu);
-}
-static inline int efx_nic_irq_test_irq_cpu(struct efx_nic *efx)
-{
- return READ_ONCE(efx->last_irq_cpu);
-}
-
/* Global Resources */
-int efx_nic_flush_queues(struct efx_nic *efx);
void siena_prepare_flush(struct efx_nic *efx);
int efx_farch_fini_dmaq(struct efx_nic *efx);
void efx_farch_finish_flr(struct efx_nic *efx);
@@ -661,34 +377,18 @@
int falcon_reset_xaui(struct efx_nic *efx);
void efx_farch_dimension_resources(struct efx_nic *efx, unsigned sram_lim_qw);
void efx_farch_init_common(struct efx_nic *efx);
-void efx_ef10_handle_drain_event(struct efx_nic *efx);
void efx_farch_rx_push_indir_table(struct efx_nic *efx);
void efx_farch_rx_pull_indir_table(struct efx_nic *efx);
-
-int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer,
- unsigned int len, gfp_t gfp_flags);
-void efx_nic_free_buffer(struct efx_nic *efx, struct efx_buffer *buffer);
/* Tests */
struct efx_farch_register_test {
unsigned address;
efx_oword_t mask;
};
+
int efx_farch_test_registers(struct efx_nic *efx,
const struct efx_farch_register_test *regs,
size_t n_regs);
-
-size_t efx_nic_get_regs_len(struct efx_nic *efx);
-void efx_nic_get_regs(struct efx_nic *efx, void *buf);
-
-size_t efx_nic_describe_stats(const struct efx_hw_stat_desc *desc, size_t count,
- const unsigned long *mask, u8 *names);
-void efx_nic_update_stats(const struct efx_hw_stat_desc *desc, size_t count,
- const unsigned long *mask, u64 *stats,
- const void *dma_buf, bool accumulate);
-void efx_nic_fix_nodesc_drop_stat(struct efx_nic *efx, u64 *stat);
-
-#define EFX_MAX_FLUSH_TIME 5000
void efx_farch_generate_event(struct efx_nic *efx, unsigned int evq,
efx_qword_t *event);
--
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