* [PATCH 0/4] convert mt76 sdio to mt76 workers APIs
@ 2020-09-26 15:06 Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 1/4] mt76: mt7663s: move tx/rx processing in the same txrx workqueue Lorenzo Bianconi
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: Lorenzo Bianconi @ 2020-09-26 15:06 UTC (permalink / raw)
To: nbd; +Cc: linux-wireless, lorenzo.bianconi, sean.wang
Convert mt76-sdio/mt7663s tx/rx path to mt76 worker threads APIs.
On mt8183 device, this series improves available throughput of ~60Mbps.
- mt76-sdio tx-rx workqueue: tcp ~ 390Mbps
- mt76-sdio tx-rx workers: tcp ~ 450Mbps
Lorenzo Bianconi (4):
mt76: mt7663s: move tx/rx processing in the same txrx workqueue
mt76: mt7663s: convert txrx_work to mt76_worker
mt76: mt7663s: disable interrupt during txrx_worker processing
mt76: sdio: convert {status/net}_work to mt76_worker
drivers/net/wireless/mediatek/mt76/mt76.h | 13 +-
.../wireless/mediatek/mt76/mt7615/mt7615.h | 2 +-
.../net/wireless/mediatek/mt76/mt7615/sdio.c | 45 ++++--
.../wireless/mediatek/mt76/mt7615/sdio_txrx.c | 112 +++++++--------
drivers/net/wireless/mediatek/mt76/sdio.c | 130 +++++++++---------
5 files changed, 154 insertions(+), 148 deletions(-)
--
2.26.2
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH 1/4] mt76: mt7663s: move tx/rx processing in the same txrx workqueue
2020-09-26 15:06 [PATCH 0/4] convert mt76 sdio to mt76 workers APIs Lorenzo Bianconi
@ 2020-09-26 15:06 ` Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 2/4] mt76: mt7663s: convert txrx_work to mt76_worker Lorenzo Bianconi
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Lorenzo Bianconi @ 2020-09-26 15:06 UTC (permalink / raw)
To: nbd; +Cc: linux-wireless, lorenzo.bianconi, sean.wang
Move mt7663 tx and rx processing in the same workqueue in order to
reduce jitter that can hit tcp performances. This is a preliminary patch
to switch to mt76 workers APIs
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt76.h | 11 +-
.../wireless/mediatek/mt76/mt7615/mt7615.h | 2 +-
.../net/wireless/mediatek/mt76/mt7615/sdio.c | 3 +-
.../wireless/mediatek/mt76/mt7615/sdio_txrx.c | 106 +++++++++---------
drivers/net/wireless/mediatek/mt76/sdio.c | 17 ++-
5 files changed, 66 insertions(+), 73 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index a5be66de1cff..243cb89c0a92 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -446,15 +446,10 @@ struct mt76_usb {
#define MT76S_XMIT_BUF_SZ (16 * PAGE_SIZE)
struct mt76_sdio {
struct workqueue_struct *txrx_wq;
- struct {
- struct work_struct xmit_work;
- struct work_struct status_work;
- } tx;
- struct {
- struct work_struct recv_work;
- struct work_struct net_work;
- } rx;
+ struct work_struct txrx_work;
+ struct work_struct status_work;
+ struct work_struct net_work;
struct work_struct stat_work;
u8 *xmit_buf[MT_TXQ_MCU_WA];
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
index 6a9f9187f76a..11b4caa5cb69 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
@@ -681,7 +681,7 @@ int mt7663u_mcu_init(struct mt7615_dev *dev);
/* sdio */
u32 mt7663s_read_pcr(struct mt7615_dev *dev);
int mt7663s_mcu_init(struct mt7615_dev *dev);
-void mt7663s_tx_work(struct work_struct *work);
+void mt7663s_txrx_work(struct work_struct *work);
void mt7663s_rx_work(struct work_struct *work);
void mt7663s_sdio_irq(struct sdio_func *func);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
index 874c929d8552..ad7e422ea52e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
@@ -368,8 +368,7 @@ static int mt7663s_probe(struct sdio_func *func,
if (ret < 0)
goto err_free;
- INIT_WORK(&mdev->sdio.tx.xmit_work, mt7663s_tx_work);
- INIT_WORK(&mdev->sdio.rx.recv_work, mt7663s_rx_work);
+ INIT_WORK(&mdev->sdio.txrx_work, mt7663s_txrx_work);
ret = mt7663s_hw_init(dev, func);
if (ret)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c b/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
index 2486cda3243b..1194df0405ed 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
@@ -138,6 +138,50 @@ static int mt7663s_rx_run_queue(struct mt76_dev *dev, enum mt76_rxq_id qid,
return i;
}
+static int mt7663s_rx_handler(struct mt76_dev *dev)
+{
+ struct mt76_sdio *sdio = &dev->sdio;
+ struct mt76s_intr *intr = sdio->intr_data;
+ int nframes = 0, ret;
+
+ /* disable interrupt */
+ sdio_claim_host(sdio->func);
+ sdio_writel(sdio->func, WHLPCR_INT_EN_CLR, MCR_WHLPCR, NULL);
+ ret = sdio_readsb(sdio->func, intr, MCR_WHISR, sizeof(*intr));
+ sdio_release_host(sdio->func);
+
+ if (ret < 0)
+ goto out;
+
+ trace_dev_irq(dev, intr->isr, 0);
+
+ if (intr->isr & WHIER_RX0_DONE_INT_EN) {
+ ret = mt7663s_rx_run_queue(dev, 0, intr);
+ if (ret > 0) {
+ queue_work(sdio->txrx_wq, &sdio->net_work);
+ nframes += ret;
+ }
+ }
+
+ if (intr->isr & WHIER_RX1_DONE_INT_EN) {
+ ret = mt7663s_rx_run_queue(dev, 1, intr);
+ if (ret > 0) {
+ queue_work(sdio->txrx_wq, &sdio->net_work);
+ nframes += ret;
+ }
+ }
+
+ nframes += !!mt7663s_refill_sched_quota(dev, intr->tx.wtqcr);
+
+out:
+ /* enable interrupt */
+ sdio_claim_host(sdio->func);
+ sdio_writel(sdio->func, WHLPCR_INT_EN_SET, MCR_WHLPCR, NULL);
+ sdio_release_host(sdio->func);
+
+ return nframes;
+}
+
static int mt7663s_tx_pick_quota(struct mt76_sdio *sdio, enum mt76_txq_id qid,
int buf_sz, int *pse_size, int *ple_size)
{
@@ -245,13 +289,14 @@ static int mt7663s_tx_run_queue(struct mt76_dev *dev, enum mt76_txq_id qid)
return nframes;
}
-void mt7663s_tx_work(struct work_struct *work)
+void mt7663s_txrx_work(struct work_struct *work)
{
struct mt76_sdio *sdio = container_of(work, struct mt76_sdio,
- tx.xmit_work);
+ txrx_work);
struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
int i, nframes = 0;
+ /* tx */
for (i = 0; i < MT_TXQ_MCU_WA; i++) {
int ret;
@@ -261,59 +306,14 @@ void mt7663s_tx_work(struct work_struct *work)
nframes += ret;
}
- if (nframes)
- queue_work(sdio->txrx_wq, &sdio->tx.xmit_work);
-
- queue_work(sdio->txrx_wq, &sdio->tx.status_work);
-}
-
-void mt7663s_rx_work(struct work_struct *work)
-{
- struct mt76_sdio *sdio = container_of(work, struct mt76_sdio,
- rx.recv_work);
- struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
- struct mt76s_intr *intr = sdio->intr_data;
- int nframes = 0, ret;
-
- /* disable interrupt */
- sdio_claim_host(sdio->func);
- sdio_writel(sdio->func, WHLPCR_INT_EN_CLR, MCR_WHLPCR, NULL);
- ret = sdio_readsb(sdio->func, intr, MCR_WHISR, sizeof(*intr));
- sdio_release_host(sdio->func);
-
- if (ret < 0)
- goto out;
-
- trace_dev_irq(dev, intr->isr, 0);
-
- if (intr->isr & WHIER_RX0_DONE_INT_EN) {
- ret = mt7663s_rx_run_queue(dev, 0, intr);
- if (ret > 0) {
- queue_work(sdio->txrx_wq, &sdio->rx.net_work);
- nframes += ret;
- }
- }
- if (intr->isr & WHIER_RX1_DONE_INT_EN) {
- ret = mt7663s_rx_run_queue(dev, 1, intr);
- if (ret > 0) {
- queue_work(sdio->txrx_wq, &sdio->rx.net_work);
- nframes += ret;
- }
- }
+ /* rx */
+ nframes += mt7663s_rx_handler(dev);
- if (mt7663s_refill_sched_quota(dev, intr->tx.wtqcr))
- queue_work(sdio->txrx_wq, &sdio->tx.xmit_work);
+ if (nframes)
+ queue_work(sdio->txrx_wq, &sdio->txrx_work);
- if (nframes) {
- queue_work(sdio->txrx_wq, &sdio->rx.recv_work);
- return;
- }
-out:
- /* enable interrupt */
- sdio_claim_host(sdio->func);
- sdio_writel(sdio->func, WHLPCR_INT_EN_SET, MCR_WHLPCR, NULL);
- sdio_release_host(sdio->func);
+ queue_work(sdio->txrx_wq, &sdio->status_work);
}
void mt7663s_sdio_irq(struct sdio_func *func)
@@ -324,5 +324,5 @@ void mt7663s_sdio_irq(struct sdio_func *func)
if (!test_bit(MT76_STATE_INITIALIZED, &dev->mt76.phy.state))
return;
- queue_work(sdio->txrx_wq, &sdio->rx.recv_work);
+ queue_work(sdio->txrx_wq, &sdio->txrx_work);
}
diff --git a/drivers/net/wireless/mediatek/mt76/sdio.c b/drivers/net/wireless/mediatek/mt76/sdio.c
index 9a4d95a2a707..6eb75ffa9e0f 100644
--- a/drivers/net/wireless/mediatek/mt76/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/sdio.c
@@ -66,10 +66,9 @@ void mt76s_stop_txrx(struct mt76_dev *dev)
{
struct mt76_sdio *sdio = &dev->sdio;
- cancel_work_sync(&sdio->tx.xmit_work);
- cancel_work_sync(&sdio->tx.status_work);
- cancel_work_sync(&sdio->rx.recv_work);
- cancel_work_sync(&sdio->rx.net_work);
+ cancel_work_sync(&sdio->txrx_work);
+ cancel_work_sync(&sdio->status_work);
+ cancel_work_sync(&sdio->net_work);
cancel_work_sync(&sdio->stat_work);
clear_bit(MT76_READING_STATS, &dev->phy.state);
@@ -257,7 +256,7 @@ static void mt76s_tx_kick(struct mt76_dev *dev, struct mt76_queue *q)
{
struct mt76_sdio *sdio = &dev->sdio;
- queue_work(sdio->txrx_wq, &sdio->tx.xmit_work);
+ queue_work(sdio->txrx_wq, &sdio->txrx_work);
}
static const struct mt76_queue_ops sdio_queue_ops = {
@@ -269,7 +268,7 @@ static const struct mt76_queue_ops sdio_queue_ops = {
static void mt76s_tx_work(struct work_struct *work)
{
struct mt76_sdio *sdio = container_of(work, struct mt76_sdio,
- tx.status_work);
+ status_work);
struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
int i;
@@ -284,7 +283,7 @@ static void mt76s_tx_work(struct work_struct *work)
static void mt76s_rx_work(struct work_struct *work)
{
struct mt76_sdio *sdio = container_of(work, struct mt76_sdio,
- rx.net_work);
+ net_work);
struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
int i;
@@ -343,8 +342,8 @@ int mt76s_init(struct mt76_dev *dev, struct sdio_func *func,
return -ENOMEM;
INIT_WORK(&sdio->stat_work, mt76s_tx_status_data);
- INIT_WORK(&sdio->tx.status_work, mt76s_tx_work);
- INIT_WORK(&sdio->rx.net_work, mt76s_rx_work);
+ INIT_WORK(&sdio->status_work, mt76s_tx_work);
+ INIT_WORK(&sdio->net_work, mt76s_rx_work);
mutex_init(&sdio->sched.lock);
dev->queue_ops = &sdio_queue_ops;
--
2.26.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/4] mt76: mt7663s: convert txrx_work to mt76_worker
2020-09-26 15:06 [PATCH 0/4] convert mt76 sdio to mt76 workers APIs Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 1/4] mt76: mt7663s: move tx/rx processing in the same txrx workqueue Lorenzo Bianconi
@ 2020-09-26 15:06 ` Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 3/4] mt76: mt7663s: disable interrupt during txrx_worker processing Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 4/4] mt76: sdio: convert {status/net}_work to mt76_worker Lorenzo Bianconi
3 siblings, 0 replies; 5+ messages in thread
From: Lorenzo Bianconi @ 2020-09-26 15:06 UTC (permalink / raw)
To: nbd; +Cc: linux-wireless, lorenzo.bianconi, sean.wang
In order to improve driver throughput, convert txrx_work to mt76 worker
threads APIs.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt76.h | 2 +-
.../wireless/mediatek/mt76/mt7615/mt7615.h | 2 +-
.../net/wireless/mediatek/mt76/mt7615/sdio.c | 19 +++++++--
.../wireless/mediatek/mt76/mt7615/sdio_txrx.c | 41 +++++++++----------
drivers/net/wireless/mediatek/mt76/sdio.c | 5 ++-
5 files changed, 41 insertions(+), 28 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 243cb89c0a92..e47696e5d3f0 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -447,7 +447,7 @@ struct mt76_usb {
struct mt76_sdio {
struct workqueue_struct *txrx_wq;
- struct work_struct txrx_work;
+ struct mt76_worker txrx_worker;
struct work_struct status_work;
struct work_struct net_work;
struct work_struct stat_work;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
index 11b4caa5cb69..716956b58c13 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
@@ -681,7 +681,7 @@ int mt7663u_mcu_init(struct mt7615_dev *dev);
/* sdio */
u32 mt7663s_read_pcr(struct mt7615_dev *dev);
int mt7663s_mcu_init(struct mt7615_dev *dev);
-void mt7663s_txrx_work(struct work_struct *work);
+void mt7663s_txrx_worker(struct mt76_worker *w);
void mt7663s_rx_work(struct work_struct *work);
void mt7663s_sdio_irq(struct sdio_func *func);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
index ad7e422ea52e..6f8adba2a78b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
@@ -368,8 +368,6 @@ static int mt7663s_probe(struct sdio_func *func,
if (ret < 0)
goto err_free;
- INIT_WORK(&mdev->sdio.txrx_work, mt7663s_txrx_work);
-
ret = mt7663s_hw_init(dev, func);
if (ret)
goto err_deinit;
@@ -400,6 +398,13 @@ static int mt7663s_probe(struct sdio_func *func,
if (ret)
goto err_deinit;
+ ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker,
+ mt7663s_txrx_worker, "sdio-txrx");
+ if (ret)
+ goto err_deinit;
+
+ sched_set_fifo_low(mdev->sdio.txrx_worker.task);
+
ret = mt7663_usb_sdio_register_device(dev);
if (ret)
goto err_deinit;
@@ -431,6 +436,7 @@ static int mt7663s_suspend(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
struct mt7615_dev *mdev = sdio_get_drvdata(func);
+ int err;
if (!test_bit(MT76_STATE_SUSPEND, &mdev->mphy.state) &&
mt7615_firmware_offload(mdev)) {
@@ -443,9 +449,14 @@ static int mt7663s_suspend(struct device *dev)
sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+ err = mt7615_mcu_set_fw_ctrl(mdev);
+ if (err)
+ return err;
+
+ mt76_worker_disable(&mdev->mt76.sdio.txrx_worker);
mt76s_stop_txrx(&mdev->mt76);
- return mt7615_mcu_set_fw_ctrl(mdev);
+ return 0;
}
static int mt7663s_resume(struct device *dev)
@@ -454,6 +465,8 @@ static int mt7663s_resume(struct device *dev)
struct mt7615_dev *mdev = sdio_get_drvdata(func);
int err;
+ mt76_worker_enable(&mdev->mt76.sdio.txrx_worker);
+
err = mt7615_mcu_set_drv_ctrl(mdev);
if (err)
return err;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c b/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
index 1194df0405ed..10ed211d7d11 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
@@ -286,34 +286,33 @@ static int mt7663s_tx_run_queue(struct mt76_dev *dev, enum mt76_txq_id qid)
}
mt7663s_tx_update_quota(sdio, qid, pse_sz, ple_sz);
+ queue_work(sdio->txrx_wq, &sdio->status_work);
+
return nframes;
}
-void mt7663s_txrx_work(struct work_struct *work)
+void mt7663s_txrx_worker(struct mt76_worker *w)
{
- struct mt76_sdio *sdio = container_of(work, struct mt76_sdio,
- txrx_work);
+ struct mt76_sdio *sdio = container_of(w, struct mt76_sdio,
+ txrx_worker);
struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
- int i, nframes = 0;
-
- /* tx */
- for (i = 0; i < MT_TXQ_MCU_WA; i++) {
- int ret;
-
- ret = mt7663s_tx_run_queue(dev, i);
- if (ret < 0)
- break;
+ int i, nframes, ret;
- nframes += ret;
- }
-
- /* rx */
- nframes += mt7663s_rx_handler(dev);
+ do {
+ nframes = 0;
- if (nframes)
- queue_work(sdio->txrx_wq, &sdio->txrx_work);
+ /* tx */
+ for (i = 0; i < MT_TXQ_MCU_WA; i++) {
+ ret = mt7663s_tx_run_queue(dev, i);
+ if (ret > 0)
+ nframes += ret;
+ }
- queue_work(sdio->txrx_wq, &sdio->status_work);
+ /* rx */
+ ret = mt7663s_rx_handler(dev);
+ if (ret > 0)
+ nframes += ret;
+ } while (nframes > 0);
}
void mt7663s_sdio_irq(struct sdio_func *func)
@@ -324,5 +323,5 @@ void mt7663s_sdio_irq(struct sdio_func *func)
if (!test_bit(MT76_STATE_INITIALIZED, &dev->mt76.phy.state))
return;
- queue_work(sdio->txrx_wq, &sdio->txrx_work);
+ mt76_worker_schedule(&sdio->txrx_worker);
}
diff --git a/drivers/net/wireless/mediatek/mt76/sdio.c b/drivers/net/wireless/mediatek/mt76/sdio.c
index 6eb75ffa9e0f..37e05ec40e1d 100644
--- a/drivers/net/wireless/mediatek/mt76/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/sdio.c
@@ -66,7 +66,6 @@ void mt76s_stop_txrx(struct mt76_dev *dev)
{
struct mt76_sdio *sdio = &dev->sdio;
- cancel_work_sync(&sdio->txrx_work);
cancel_work_sync(&sdio->status_work);
cancel_work_sync(&sdio->net_work);
cancel_work_sync(&sdio->stat_work);
@@ -256,7 +255,7 @@ static void mt76s_tx_kick(struct mt76_dev *dev, struct mt76_queue *q)
{
struct mt76_sdio *sdio = &dev->sdio;
- queue_work(sdio->txrx_wq, &sdio->txrx_work);
+ mt76_worker_schedule(&sdio->txrx_worker);
}
static const struct mt76_queue_ops sdio_queue_ops = {
@@ -303,6 +302,8 @@ void mt76s_deinit(struct mt76_dev *dev)
struct mt76_sdio *sdio = &dev->sdio;
int i;
+ mt76_worker_teardown(&sdio->txrx_worker);
+
mt76s_stop_txrx(dev);
if (sdio->txrx_wq) {
destroy_workqueue(sdio->txrx_wq);
--
2.26.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 3/4] mt76: mt7663s: disable interrupt during txrx_worker processing
2020-09-26 15:06 [PATCH 0/4] convert mt76 sdio to mt76 workers APIs Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 1/4] mt76: mt7663s: move tx/rx processing in the same txrx workqueue Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 2/4] mt76: mt7663s: convert txrx_work to mt76_worker Lorenzo Bianconi
@ 2020-09-26 15:06 ` Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 4/4] mt76: sdio: convert {status/net}_work to mt76_worker Lorenzo Bianconi
3 siblings, 0 replies; 5+ messages in thread
From: Lorenzo Bianconi @ 2020-09-26 15:06 UTC (permalink / raw)
To: nbd; +Cc: linux-wireless, lorenzo.bianconi, sean.wang
In order to reduce sdio bus contention, disable interrupts during
txrx_worker processing
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
.../wireless/mediatek/mt76/mt7615/sdio_txrx.c | 27 +++++++------------
1 file changed, 9 insertions(+), 18 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c b/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
index 10ed211d7d11..d8f9148fe777 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
@@ -105,10 +105,7 @@ static int mt7663s_rx_run_queue(struct mt76_dev *dev, enum mt76_rxq_id qid,
buf = page_address(page);
- sdio_claim_host(sdio->func);
err = sdio_readsb(sdio->func, buf, MCR_WRDR(qid), len);
- sdio_release_host(sdio->func);
-
if (err < 0) {
dev_err(dev->dev, "sdio read data failed:%d\n", err);
__free_pages(page, order);
@@ -144,14 +141,9 @@ static int mt7663s_rx_handler(struct mt76_dev *dev)
struct mt76s_intr *intr = sdio->intr_data;
int nframes = 0, ret;
- /* disable interrupt */
- sdio_claim_host(sdio->func);
- sdio_writel(sdio->func, WHLPCR_INT_EN_CLR, MCR_WHLPCR, NULL);
ret = sdio_readsb(sdio->func, intr, MCR_WHISR, sizeof(*intr));
- sdio_release_host(sdio->func);
-
if (ret < 0)
- goto out;
+ return ret;
trace_dev_irq(dev, intr->isr, 0);
@@ -173,12 +165,6 @@ static int mt7663s_rx_handler(struct mt76_dev *dev)
nframes += !!mt7663s_refill_sched_quota(dev, intr->tx.wtqcr);
-out:
- /* enable interrupt */
- sdio_claim_host(sdio->func);
- sdio_writel(sdio->func, WHLPCR_INT_EN_SET, MCR_WHLPCR, NULL);
- sdio_release_host(sdio->func);
-
return nframes;
}
@@ -225,10 +211,7 @@ static int __mt7663s_xmit_queue(struct mt76_dev *dev, u8 *data, int len)
if (len > sdio->func->cur_blksize)
len = roundup(len, sdio->func->cur_blksize);
- sdio_claim_host(sdio->func);
err = sdio_writesb(sdio->func, MCR_WTDR1, data, len);
- sdio_release_host(sdio->func);
-
if (err)
dev_err(dev->dev, "sdio write failed: %d\n", err);
@@ -298,6 +281,10 @@ void mt7663s_txrx_worker(struct mt76_worker *w)
struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
int i, nframes, ret;
+ /* disable interrupt */
+ sdio_claim_host(sdio->func);
+ sdio_writel(sdio->func, WHLPCR_INT_EN_CLR, MCR_WHLPCR, NULL);
+
do {
nframes = 0;
@@ -313,6 +300,10 @@ void mt7663s_txrx_worker(struct mt76_worker *w)
if (ret > 0)
nframes += ret;
} while (nframes > 0);
+
+ /* enable interrupt */
+ sdio_writel(sdio->func, WHLPCR_INT_EN_SET, MCR_WHLPCR, NULL);
+ sdio_release_host(sdio->func);
}
void mt7663s_sdio_irq(struct sdio_func *func)
--
2.26.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 4/4] mt76: sdio: convert {status/net}_work to mt76_worker
2020-09-26 15:06 [PATCH 0/4] convert mt76 sdio to mt76 workers APIs Lorenzo Bianconi
` (2 preceding siblings ...)
2020-09-26 15:06 ` [PATCH 3/4] mt76: mt7663s: disable interrupt during txrx_worker processing Lorenzo Bianconi
@ 2020-09-26 15:06 ` Lorenzo Bianconi
3 siblings, 0 replies; 5+ messages in thread
From: Lorenzo Bianconi @ 2020-09-26 15:06 UTC (permalink / raw)
To: nbd; +Cc: linux-wireless, lorenzo.bianconi, sean.wang
In order to improve driver throughput, convert status_work and net_work
to mt76 worker APIs.
Remove txrx_wq sdio workqueue since it is no longer used
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt76.h | 8 +-
.../net/wireless/mediatek/mt76/mt7615/sdio.c | 27 ++--
.../wireless/mediatek/mt76/mt7615/sdio_txrx.c | 6 +-
drivers/net/wireless/mediatek/mt76/sdio.c | 124 +++++++++---------
4 files changed, 87 insertions(+), 78 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index e47696e5d3f0..6bb162a2cdd3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -445,11 +445,10 @@ struct mt76_usb {
#define MT76S_XMIT_BUF_SZ (16 * PAGE_SIZE)
struct mt76_sdio {
- struct workqueue_struct *txrx_wq;
-
struct mt76_worker txrx_worker;
- struct work_struct status_work;
- struct work_struct net_work;
+ struct mt76_worker status_worker;
+ struct mt76_worker net_worker;
+
struct work_struct stat_work;
u8 *xmit_buf[MT_TXQ_MCU_WA];
@@ -1059,7 +1058,6 @@ void mt76u_queues_deinit(struct mt76_dev *dev);
int mt76s_init(struct mt76_dev *dev, struct sdio_func *func,
const struct mt76_bus_ops *bus_ops);
int mt76s_alloc_queues(struct mt76_dev *dev);
-void mt76s_stop_txrx(struct mt76_dev *dev);
void mt76s_deinit(struct mt76_dev *dev);
struct sk_buff *
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
index 6f8adba2a78b..a3718c501eb8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c
@@ -366,11 +366,11 @@ static int mt7663s_probe(struct sdio_func *func,
ret = mt76s_init(mdev, func, &mt7663s_ops);
if (ret < 0)
- goto err_free;
+ goto error;
ret = mt7663s_hw_init(dev, func);
if (ret)
- goto err_deinit;
+ goto error;
mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
(mt76_rr(dev, MT_HW_REV) & 0xff);
@@ -381,7 +381,7 @@ static int mt7663s_probe(struct sdio_func *func,
GFP_KERNEL);
if (!mdev->sdio.intr_data) {
ret = -ENOMEM;
- goto err_deinit;
+ goto error;
}
for (i = 0; i < ARRAY_SIZE(mdev->sdio.xmit_buf); i++) {
@@ -390,30 +390,29 @@ static int mt7663s_probe(struct sdio_func *func,
GFP_KERNEL);
if (!mdev->sdio.xmit_buf[i]) {
ret = -ENOMEM;
- goto err_deinit;
+ goto error;
}
}
ret = mt76s_alloc_queues(&dev->mt76);
if (ret)
- goto err_deinit;
+ goto error;
ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker,
mt7663s_txrx_worker, "sdio-txrx");
if (ret)
- goto err_deinit;
+ goto error;
sched_set_fifo_low(mdev->sdio.txrx_worker.task);
ret = mt7663_usb_sdio_register_device(dev);
if (ret)
- goto err_deinit;
+ goto error;
return 0;
-err_deinit:
+error:
mt76s_deinit(&dev->mt76);
-err_free:
mt76_free_device(&dev->mt76);
return ret;
@@ -454,7 +453,13 @@ static int mt7663s_suspend(struct device *dev)
return err;
mt76_worker_disable(&mdev->mt76.sdio.txrx_worker);
- mt76s_stop_txrx(&mdev->mt76);
+ mt76_worker_disable(&mdev->mt76.sdio.status_worker);
+ mt76_worker_disable(&mdev->mt76.sdio.net_worker);
+
+ cancel_work_sync(&mdev->mt76.sdio.stat_work);
+ clear_bit(MT76_READING_STATS, &mdev->mphy.state);
+
+ mt76_tx_status_check(&mdev->mt76, NULL, true);
return 0;
}
@@ -466,6 +471,8 @@ static int mt7663s_resume(struct device *dev)
int err;
mt76_worker_enable(&mdev->mt76.sdio.txrx_worker);
+ mt76_worker_enable(&mdev->mt76.sdio.status_worker);
+ mt76_worker_enable(&mdev->mt76.sdio.net_worker);
err = mt7615_mcu_set_drv_ctrl(mdev);
if (err)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c b/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
index d8f9148fe777..a4969380c860 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
@@ -150,7 +150,7 @@ static int mt7663s_rx_handler(struct mt76_dev *dev)
if (intr->isr & WHIER_RX0_DONE_INT_EN) {
ret = mt7663s_rx_run_queue(dev, 0, intr);
if (ret > 0) {
- queue_work(sdio->txrx_wq, &sdio->net_work);
+ mt76_worker_schedule(&sdio->net_worker);
nframes += ret;
}
}
@@ -158,7 +158,7 @@ static int mt7663s_rx_handler(struct mt76_dev *dev)
if (intr->isr & WHIER_RX1_DONE_INT_EN) {
ret = mt7663s_rx_run_queue(dev, 1, intr);
if (ret > 0) {
- queue_work(sdio->txrx_wq, &sdio->net_work);
+ mt76_worker_schedule(&sdio->net_worker);
nframes += ret;
}
}
@@ -269,7 +269,7 @@ static int mt7663s_tx_run_queue(struct mt76_dev *dev, enum mt76_txq_id qid)
}
mt7663s_tx_update_quota(sdio, qid, pse_sz, ple_sz);
- queue_work(sdio->txrx_wq, &sdio->status_work);
+ mt76_worker_schedule(&sdio->status_worker);
return nframes;
}
diff --git a/drivers/net/wireless/mediatek/mt76/sdio.c b/drivers/net/wireless/mediatek/mt76/sdio.c
index 37e05ec40e1d..41e832b11199 100644
--- a/drivers/net/wireless/mediatek/mt76/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/sdio.c
@@ -62,19 +62,6 @@ static int mt76s_alloc_tx(struct mt76_dev *dev)
return 0;
}
-void mt76s_stop_txrx(struct mt76_dev *dev)
-{
- struct mt76_sdio *sdio = &dev->sdio;
-
- cancel_work_sync(&sdio->status_work);
- cancel_work_sync(&sdio->net_work);
- cancel_work_sync(&sdio->stat_work);
- clear_bit(MT76_READING_STATS, &dev->phy.state);
-
- mt76_tx_status_check(dev, NULL, true);
-}
-EXPORT_SYMBOL_GPL(mt76s_stop_txrx);
-
int mt76s_alloc_queues(struct mt76_dev *dev)
{
int err;
@@ -129,10 +116,32 @@ mt76s_process_rx_queue(struct mt76_dev *dev, struct mt76_queue *q)
return nframes;
}
-static void mt76s_process_tx_queue(struct mt76_dev *dev, enum mt76_txq_id qid)
+static void mt76s_net_worker(struct mt76_worker *w)
+{
+ struct mt76_sdio *sdio = container_of(w, struct mt76_sdio,
+ net_worker);
+ struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
+ int i, nframes;
+
+ do {
+ nframes = 0;
+
+ local_bh_disable();
+ rcu_read_lock();
+
+ mt76_for_each_q_rx(dev, i)
+ nframes += mt76s_process_rx_queue(dev, &dev->q_rx[i]);
+
+ rcu_read_unlock();
+ local_bh_enable();
+ } while (nframes > 0);
+}
+
+static int mt76s_process_tx_queue(struct mt76_dev *dev, enum mt76_txq_id qid)
{
struct mt76_queue *q = dev->q_tx[qid];
struct mt76_queue_entry entry;
+ int nframes = 0;
bool wake;
while (q->queued > 0) {
@@ -148,6 +157,7 @@ static void mt76s_process_tx_queue(struct mt76_dev *dev, enum mt76_txq_id qid)
}
mt76_queue_tx_complete(dev, q, &entry);
+ nframes++;
}
wake = q->stopped && q->queued < q->ndesc - 8;
@@ -158,12 +168,32 @@ static void mt76s_process_tx_queue(struct mt76_dev *dev, enum mt76_txq_id qid)
wake_up(&dev->tx_wait);
if (qid == MT_TXQ_MCU)
- return;
+ goto out;
mt76_txq_schedule(&dev->phy, qid);
if (wake)
ieee80211_wake_queue(dev->hw, qid);
+out:
+ return nframes;
+}
+
+static void mt76s_status_worker(struct mt76_worker *w)
+{
+ struct mt76_sdio *sdio = container_of(w, struct mt76_sdio,
+ status_worker);
+ struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
+ int i, nframes;
+
+ do {
+ nframes = 0;
+ for (i = 0; i < MT_TXQ_MCU_WA; i++)
+ nframes += mt76s_process_tx_queue(dev, i);
+
+ if (dev->drv->tx_status_data &&
+ !test_and_set_bit(MT76_READING_STATS, &dev->phy.state))
+ queue_work(dev->wq, &dev->sdio.stat_work);
+ } while (nframes > 0);
}
static void mt76s_tx_status_data(struct work_struct *work)
@@ -264,51 +294,19 @@ static const struct mt76_queue_ops sdio_queue_ops = {
.tx_queue_skb_raw = mt76s_tx_queue_skb_raw,
};
-static void mt76s_tx_work(struct work_struct *work)
-{
- struct mt76_sdio *sdio = container_of(work, struct mt76_sdio,
- status_work);
- struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
- int i;
-
- for (i = 0; i < MT_TXQ_MCU_WA; i++)
- mt76s_process_tx_queue(dev, i);
-
- if (dev->drv->tx_status_data &&
- !test_and_set_bit(MT76_READING_STATS, &dev->phy.state))
- queue_work(dev->wq, &dev->sdio.stat_work);
-}
-
-static void mt76s_rx_work(struct work_struct *work)
-{
- struct mt76_sdio *sdio = container_of(work, struct mt76_sdio,
- net_work);
- struct mt76_dev *dev = container_of(sdio, struct mt76_dev, sdio);
- int i;
-
- /* rx processing */
- local_bh_disable();
- rcu_read_lock();
-
- mt76_for_each_q_rx(dev, i)
- mt76s_process_rx_queue(dev, &dev->q_rx[i]);
-
- rcu_read_unlock();
- local_bh_enable();
-}
-
void mt76s_deinit(struct mt76_dev *dev)
{
struct mt76_sdio *sdio = &dev->sdio;
int i;
mt76_worker_teardown(&sdio->txrx_worker);
+ mt76_worker_teardown(&sdio->status_worker);
+ mt76_worker_teardown(&sdio->net_worker);
- mt76s_stop_txrx(dev);
- if (sdio->txrx_wq) {
- destroy_workqueue(sdio->txrx_wq);
- sdio->txrx_wq = NULL;
- }
+ cancel_work_sync(&sdio->stat_work);
+ clear_bit(MT76_READING_STATS, &dev->phy.state);
+
+ mt76_tx_status_check(dev, NULL, true);
sdio_claim_host(sdio->func);
sdio_release_irq(sdio->func);
@@ -335,16 +333,22 @@ int mt76s_init(struct mt76_dev *dev, struct sdio_func *func,
const struct mt76_bus_ops *bus_ops)
{
struct mt76_sdio *sdio = &dev->sdio;
+ int err;
- sdio->txrx_wq = alloc_workqueue("mt76s_txrx_wq",
- WQ_UNBOUND | WQ_HIGHPRI,
- WQ_UNBOUND_MAX_ACTIVE);
- if (!sdio->txrx_wq)
- return -ENOMEM;
+ err = mt76_worker_setup(dev->hw, &sdio->status_worker,
+ mt76s_status_worker, "sdio-status");
+ if (err)
+ return err;
+
+ err = mt76_worker_setup(dev->hw, &sdio->net_worker, mt76s_net_worker,
+ "sdio-net");
+ if (err)
+ return err;
+
+ sched_set_fifo_low(sdio->status_worker.task);
+ sched_set_fifo_low(sdio->net_worker.task);
INIT_WORK(&sdio->stat_work, mt76s_tx_status_data);
- INIT_WORK(&sdio->status_work, mt76s_tx_work);
- INIT_WORK(&sdio->net_work, mt76s_rx_work);
mutex_init(&sdio->sched.lock);
dev->queue_ops = &sdio_queue_ops;
--
2.26.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-09-26 15:07 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-26 15:06 [PATCH 0/4] convert mt76 sdio to mt76 workers APIs Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 1/4] mt76: mt7663s: move tx/rx processing in the same txrx workqueue Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 2/4] mt76: mt7663s: convert txrx_work to mt76_worker Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 3/4] mt76: mt7663s: disable interrupt during txrx_worker processing Lorenzo Bianconi
2020-09-26 15:06 ` [PATCH 4/4] mt76: sdio: convert {status/net}_work to mt76_worker Lorenzo Bianconi
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