From 31582373a4a8e888b29ed759d28330a1995f2162 Mon Sep 17 00:00:00 2001
From: Baochen Qiang <bqiang@codeaurora.org>
Date: Mon, 11 Oct 2021 09:33:09 +0300
Subject: [PATCH] ath11k: Change number of TCL rings to one for QCA6390
Git-commit: 31582373a4a8e888b29ed759d28330a1995f2162
Patch-mainline: v5.16-rc1
References: bsc#1206451
Some targets, QCA6390 for example, use only one TCL ring, it is better to
initialize only one ring and leave others untouched for such targets.
This is a theoretical fix found during code review, no visible impact.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914163726.38604-1-jouni@codeaurora.org
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/ath/ath11k/core.c | 10 +++++-----
drivers/net/wireless/ath/ath11k/debugfs.c | 2 +-
drivers/net/wireless/ath/ath11k/dp.c | 10 +++++-----
drivers/net/wireless/ath/ath11k/dp.h | 1 +
drivers/net/wireless/ath/ath11k/dp_tx.c | 13 +++++--------
drivers/net/wireless/ath/ath11k/hw.h | 2 +-
drivers/net/wireless/ath/ath11k/mac.c | 2 +-
7 files changed, 19 insertions(+), 21 deletions(-)
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -58,7 +58,6 @@ static const struct ath11k_hw_params ath
.rx_mac_buf_ring = false,
.vdev_start_delay = false,
.htt_peer_map_v2 = true,
- .tcl_0_only = false,
.spectral = {
.fft_sz = 2,
@@ -81,6 +80,7 @@ static const struct ath11k_hw_params ath
.supports_suspend = false,
.hal_desc_sz = sizeof(struct hal_rx_desc_ipq8074),
.fix_l1ss = true,
+ .max_tx_ring = DP_TCL_NUM_RING_MAX,
},
{
.hw_rev = ATH11K_HW_IPQ6018_HW10,
@@ -109,7 +109,6 @@ static const struct ath11k_hw_params ath
.rx_mac_buf_ring = false,
.vdev_start_delay = false,
.htt_peer_map_v2 = true,
- .tcl_0_only = false,
.spectral = {
.fft_sz = 4,
@@ -129,6 +128,7 @@ static const struct ath11k_hw_params ath
.supports_suspend = false,
.hal_desc_sz = sizeof(struct hal_rx_desc_ipq8074),
.fix_l1ss = true,
+ .max_tx_ring = DP_TCL_NUM_RING_MAX,
},
{
.name = "qca6390 hw2.0",
@@ -157,7 +157,6 @@ static const struct ath11k_hw_params ath
.rx_mac_buf_ring = true,
.vdev_start_delay = true,
.htt_peer_map_v2 = false,
- .tcl_0_only = true,
.spectral = {
.fft_sz = 0,
@@ -176,6 +175,7 @@ static const struct ath11k_hw_params ath
.supports_suspend = true,
.hal_desc_sz = sizeof(struct hal_rx_desc_ipq8074),
.fix_l1ss = true,
+ .max_tx_ring = DP_TCL_NUM_RING_MAX_QCA6390,
},
{
.name = "qcn9074 hw1.0",
@@ -203,7 +203,6 @@ static const struct ath11k_hw_params ath
.rx_mac_buf_ring = false,
.vdev_start_delay = false,
.htt_peer_map_v2 = true,
- .tcl_0_only = false,
.spectral = {
.fft_sz = 2,
@@ -223,6 +222,7 @@ static const struct ath11k_hw_params ath
.supports_suspend = false,
.hal_desc_sz = sizeof(struct hal_rx_desc_qcn9074),
.fix_l1ss = true,
+ .max_tx_ring = DP_TCL_NUM_RING_MAX,
},
{
.name = "wcn6855 hw2.0",
@@ -251,7 +251,6 @@ static const struct ath11k_hw_params ath
.rx_mac_buf_ring = true,
.vdev_start_delay = true,
.htt_peer_map_v2 = false,
- .tcl_0_only = true,
.spectral = {
.fft_sz = 0,
@@ -270,6 +269,7 @@ static const struct ath11k_hw_params ath
.supports_suspend = true,
.hal_desc_sz = sizeof(struct hal_rx_desc_wcn6855),
.fix_l1ss = false,
+ .max_tx_ring = DP_TCL_NUM_RING_MAX_QCA6390,
},
};
--- a/drivers/net/wireless/ath/ath11k/debugfs.c
+++ b/drivers/net/wireless/ath/ath11k/debugfs.c
@@ -806,7 +806,7 @@ static ssize_t ath11k_debugfs_dump_soc_d
len += scnprintf(buf + len, size - len, "\nSOC TX STATS:\n");
len += scnprintf(buf + len, size - len, "\nTCL Ring Full Failures:\n");
- for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
+ for (i = 0; i < ab->hw_params.max_tx_ring; i++)
len += scnprintf(buf + len, size - len, "ring%d: %u\n",
i, soc_stats->tx_err.desc_na[i]);
--- a/drivers/net/wireless/ath/ath11k/dp.c
+++ b/drivers/net/wireless/ath/ath11k/dp.c
@@ -311,7 +311,7 @@ void ath11k_dp_stop_shadow_timers(struct
if (!ab->hw_params.supports_shadow_regs)
return;
- for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
+ for (i = 0; i < ab->hw_params.max_tx_ring; i++)
ath11k_dp_shadow_stop_timer(ab, &ab->dp.tx_ring_timer[i]);
ath11k_dp_shadow_stop_timer(ab, &ab->dp.reo_cmd_timer);
@@ -326,7 +326,7 @@ static void ath11k_dp_srng_common_cleanu
ath11k_dp_srng_cleanup(ab, &dp->wbm_desc_rel_ring);
ath11k_dp_srng_cleanup(ab, &dp->tcl_cmd_ring);
ath11k_dp_srng_cleanup(ab, &dp->tcl_status_ring);
- for (i = 0; i < DP_TCL_NUM_RING_MAX; i++) {
+ for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
ath11k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_data_ring);
ath11k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_comp_ring);
}
@@ -366,7 +366,7 @@ static int ath11k_dp_srng_common_setup(s
goto err;
}
- for (i = 0; i < DP_TCL_NUM_RING_MAX; i++) {
+ for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
ret = ath11k_dp_srng_setup(ab, &dp->tx_ring[i].tcl_data_ring,
HAL_TCL_DATA, i, 0,
DP_TCL_DATA_RING_SIZE);
@@ -996,7 +996,7 @@ void ath11k_dp_free(struct ath11k_base *
ath11k_dp_reo_cmd_list_cleanup(ab);
- for (i = 0; i < DP_TCL_NUM_RING_MAX; i++) {
+ for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
spin_lock_bh(&dp->tx_ring[i].tx_idr_lock);
idr_for_each(&dp->tx_ring[i].txbuf_idr,
ath11k_dp_tx_pending_cleanup, ab);
@@ -1046,7 +1046,7 @@ int ath11k_dp_alloc(struct ath11k_base *
size = sizeof(struct hal_wbm_release_ring) * DP_TX_COMP_RING_SIZE;
- for (i = 0; i < DP_TCL_NUM_RING_MAX; i++) {
+ for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
idr_init(&dp->tx_ring[i].txbuf_idr);
spin_lock_init(&dp->tx_ring[i].tx_idr_lock);
dp->tx_ring[i].tcl_data_ring_id = i;
--- a/drivers/net/wireless/ath/ath11k/dp.h
+++ b/drivers/net/wireless/ath/ath11k/dp.h
@@ -170,6 +170,7 @@ struct ath11k_pdev_dp {
#define DP_BA_WIN_SZ_MAX 256
#define DP_TCL_NUM_RING_MAX 3
+#define DP_TCL_NUM_RING_MAX_QCA6390 1
#define DP_IDLE_SCATTER_BUFS_MAX 16
--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
@@ -115,11 +115,8 @@ int ath11k_dp_tx(struct ath11k *ar, stru
tcl_ring_sel:
tcl_ring_retry = false;
- /* For some chip, it can only use tcl0 to tx */
- if (ar->ab->hw_params.tcl_0_only)
- ti.ring_id = 0;
- else
- ti.ring_id = ring_selector % DP_TCL_NUM_RING_MAX;
+
+ ti.ring_id = ring_selector % ab->hw_params.max_tx_ring;
ring_map |= BIT(ti.ring_id);
@@ -131,7 +128,7 @@ tcl_ring_sel:
spin_unlock_bh(&tx_ring->tx_idr_lock);
if (ret < 0) {
- if (ring_map == (BIT(DP_TCL_NUM_RING_MAX) - 1)) {
+ if (ring_map == (BIT(ab->hw_params.max_tx_ring) - 1)) {
atomic_inc(&ab->soc_stats.tx_err.misc_fail);
return -ENOSPC;
}
@@ -248,8 +245,8 @@ tcl_ring_sel:
* checking this ring earlier for each pkt tx.
* Restart ring selection if some rings are not checked yet.
*/
- if (ring_map != (BIT(DP_TCL_NUM_RING_MAX) - 1) &&
- !ar->ab->hw_params.tcl_0_only) {
+ if (ring_map != (BIT(ab->hw_params.max_tx_ring) - 1) &&
+ ab->hw_params.max_tx_ring > 1) {
tcl_ring_retry = true;
ring_selector++;
}
--- a/drivers/net/wireless/ath/ath11k/hw.h
+++ b/drivers/net/wireless/ath/ath11k/hw.h
@@ -152,7 +152,6 @@ struct ath11k_hw_params {
bool rx_mac_buf_ring;
bool vdev_start_delay;
bool htt_peer_map_v2;
- bool tcl_0_only;
struct {
u8 fft_sz;
@@ -170,6 +169,7 @@ struct ath11k_hw_params {
bool supports_suspend;
u32 hal_desc_sz;
bool fix_l1ss;
+ u8 max_tx_ring;
};
struct ath11k_hw_ops {
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -5797,7 +5797,7 @@ err_vdev_del:
idr_for_each(&ar->txmgmt_idr,
ath11k_mac_vif_txmgmt_idr_remove, vif);
- for (i = 0; i < DP_TCL_NUM_RING_MAX; i++) {
+ for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
spin_lock_bh(&ab->dp.tx_ring[i].tx_idr_lock);
idr_for_each(&ab->dp.tx_ring[i].txbuf_idr,
ath11k_mac_vif_unref, vif);