* [PATCH v2 net 0/3] ionic: code maintenance
@ 2023-02-02 21:55 Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 1/3] ionic: clean interrupt before enabling queue to avoid credit race Shannon Nelson
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: Shannon Nelson @ 2023-02-02 21:55 UTC (permalink / raw)
To: netdev, davem, kuba; +Cc: drivers, Shannon Nelson
These are a few fixes for a hardware bug, a couple of sw bugs,
and a little code cleanup.
v2: dropped 3 patches which will be resubmitted for net-next
added Leon's Reviewed-by where applicable
Fixed Allen's Author and SoB addresses
Allen Hubbe (1):
ionic: missed doorbell workaround
Neel Patel (1):
ionic: clean interrupt before enabling queue to avoid credit race
Shannon Nelson (1):
ionic: clear up notifyq alloc commentary
.../net/ethernet/pensando/ionic/ionic_dev.c | 9 +-
.../net/ethernet/pensando/ionic/ionic_dev.h | 12 +++
.../net/ethernet/pensando/ionic/ionic_lif.c | 68 +++++++++++++--
.../net/ethernet/pensando/ionic/ionic_lif.h | 2 +
.../net/ethernet/pensando/ionic/ionic_main.c | 29 +++++++
.../net/ethernet/pensando/ionic/ionic_txrx.c | 87 ++++++++++++++++++-
6 files changed, 195 insertions(+), 12 deletions(-)
--
2.17.1
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH v2 net 1/3] ionic: clean interrupt before enabling queue to avoid credit race
2023-02-02 21:55 [PATCH v2 net 0/3] ionic: code maintenance Shannon Nelson
@ 2023-02-02 21:55 ` Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 2/3] ionic: clear up notifyq alloc commentary Shannon Nelson
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Shannon Nelson @ 2023-02-02 21:55 UTC (permalink / raw)
To: netdev, davem, kuba; +Cc: drivers, Neel Patel, Shannon Nelson
From: Neel Patel <neel.patel@amd.com>
Clear the interrupt credits before enabling the queue rather
than after to be sure that the enabled queue starts at 0 and
that we don't wipe away possible credits after enabling the
queue.
Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Neel Patel <neel.patel@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 4dd16c487f2b..5e2dfa79f0e4 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -269,6 +269,7 @@ static int ionic_qcq_enable(struct ionic_qcq *qcq)
.oper = IONIC_Q_ENABLE,
},
};
+ int ret;
idev = &lif->ionic->idev;
dev = lif->ionic->dev;
@@ -276,16 +277,24 @@ static int ionic_qcq_enable(struct ionic_qcq *qcq)
dev_dbg(dev, "q_enable.index %d q_enable.qtype %d\n",
ctx.cmd.q_control.index, ctx.cmd.q_control.type);
+ if (qcq->flags & IONIC_QCQ_F_INTR)
+ ionic_intr_clean(idev->intr_ctrl, qcq->intr.index);
+
+ ret = ionic_adminq_post_wait(lif, &ctx);
+ if (ret)
+ return ret;
+
+ if (qcq->napi.poll)
+ napi_enable(&qcq->napi);
+
if (qcq->flags & IONIC_QCQ_F_INTR) {
irq_set_affinity_hint(qcq->intr.vector,
&qcq->intr.affinity_mask);
- napi_enable(&qcq->napi);
- ionic_intr_clean(idev->intr_ctrl, qcq->intr.index);
ionic_intr_mask(idev->intr_ctrl, qcq->intr.index,
IONIC_INTR_MASK_CLEAR);
}
- return ionic_adminq_post_wait(lif, &ctx);
+ return 0;
}
static int ionic_qcq_disable(struct ionic_lif *lif, struct ionic_qcq *qcq, int fw_err)
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v2 net 2/3] ionic: clear up notifyq alloc commentary
2023-02-02 21:55 [PATCH v2 net 0/3] ionic: code maintenance Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 1/3] ionic: clean interrupt before enabling queue to avoid credit race Shannon Nelson
@ 2023-02-02 21:55 ` Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 3/3] ionic: missed doorbell workaround Shannon Nelson
2023-02-04 4:10 ` [PATCH v2 net 0/3] ionic: code maintenance patchwork-bot+netdevbpf
3 siblings, 0 replies; 5+ messages in thread
From: Shannon Nelson @ 2023-02-02 21:55 UTC (permalink / raw)
To: netdev, davem, kuba; +Cc: drivers, Shannon Nelson
Make sure the q+cq alloc for NotifyQ is clearly documented
and don't bother with unnecessary local variables.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 5e2dfa79f0e4..e51d8be7911c 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -573,13 +573,15 @@ static int ionic_qcq_alloc(struct ionic_lif *lif, unsigned int type,
}
if (flags & IONIC_QCQ_F_NOTIFYQ) {
- int q_size, cq_size;
+ int q_size;
- /* q & cq need to be contiguous in case of notifyq */
+ /* q & cq need to be contiguous in NotifyQ, so alloc it all in q
+ * and don't alloc qc. We leave new->qc_size and new->qc_base
+ * as 0 to be sure we don't try to free it later.
+ */
q_size = ALIGN(num_descs * desc_size, PAGE_SIZE);
- cq_size = ALIGN(num_descs * cq_desc_size, PAGE_SIZE);
-
- new->q_size = PAGE_SIZE + q_size + cq_size;
+ new->q_size = PAGE_SIZE + q_size +
+ ALIGN(num_descs * cq_desc_size, PAGE_SIZE);
new->q_base = dma_alloc_coherent(dev, new->q_size,
&new->q_base_pa, GFP_KERNEL);
if (!new->q_base) {
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v2 net 3/3] ionic: missed doorbell workaround
2023-02-02 21:55 [PATCH v2 net 0/3] ionic: code maintenance Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 1/3] ionic: clean interrupt before enabling queue to avoid credit race Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 2/3] ionic: clear up notifyq alloc commentary Shannon Nelson
@ 2023-02-02 21:55 ` Shannon Nelson
2023-02-04 4:10 ` [PATCH v2 net 0/3] ionic: code maintenance patchwork-bot+netdevbpf
3 siblings, 0 replies; 5+ messages in thread
From: Shannon Nelson @ 2023-02-02 21:55 UTC (permalink / raw)
To: netdev, davem, kuba; +Cc: drivers, Allen Hubbe, Shannon Nelson
From: Allen Hubbe <allen.hubbe@amd.com>
In one version of the HW there is a remote possibility that it
will miss the doorbell ring. This adds a bit of protection to
be sure we don't stall a queue from a missed doorbell.
Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Allen Hubbe <allen.hubbe@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
---
.../net/ethernet/pensando/ionic/ionic_dev.c | 9 +-
.../net/ethernet/pensando/ionic/ionic_dev.h | 12 +++
.../net/ethernet/pensando/ionic/ionic_lif.c | 41 ++++++++-
.../net/ethernet/pensando/ionic/ionic_lif.h | 2 +
.../net/ethernet/pensando/ionic/ionic_main.c | 29 +++++++
.../net/ethernet/pensando/ionic/ionic_txrx.c | 87 ++++++++++++++++++-
6 files changed, 176 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.c b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
index 626b9113e7c4..d911f4fd9af6 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
@@ -708,9 +708,16 @@ void ionic_q_post(struct ionic_queue *q, bool ring_doorbell, ionic_desc_cb cb,
q->lif->index, q->name, q->hw_type, q->hw_index,
q->head_idx, ring_doorbell);
- if (ring_doorbell)
+ if (ring_doorbell) {
ionic_dbell_ring(lif->kern_dbpage, q->hw_type,
q->dbval | q->head_idx);
+
+ q->dbell_jiffies = jiffies;
+
+ if (q_to_qcq(q)->napi_qcq)
+ mod_timer(&q_to_qcq(q)->napi_qcq->napi_deadline,
+ jiffies + IONIC_NAPI_DEADLINE);
+ }
}
static bool ionic_q_is_posted(struct ionic_queue *q, unsigned int pos)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.h b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
index 2a1d7b9c07e7..bce3ca38669b 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
@@ -25,6 +25,12 @@
#define IONIC_DEV_INFO_REG_COUNT 32
#define IONIC_DEV_CMD_REG_COUNT 32
+#define IONIC_NAPI_DEADLINE (HZ / 200) /* 5ms */
+#define IONIC_ADMIN_DOORBELL_DEADLINE (HZ / 2) /* 500ms */
+#define IONIC_TX_DOORBELL_DEADLINE (HZ / 100) /* 10ms */
+#define IONIC_RX_MIN_DOORBELL_DEADLINE (HZ / 100) /* 10ms */
+#define IONIC_RX_MAX_DOORBELL_DEADLINE (HZ * 5) /* 5s */
+
struct ionic_dev_bar {
void __iomem *vaddr;
phys_addr_t bus_addr;
@@ -216,6 +222,8 @@ struct ionic_queue {
struct ionic_lif *lif;
struct ionic_desc_info *info;
u64 dbval;
+ unsigned long dbell_deadline;
+ unsigned long dbell_jiffies;
u16 head_idx;
u16 tail_idx;
unsigned int index;
@@ -361,4 +369,8 @@ void ionic_q_service(struct ionic_queue *q, struct ionic_cq_info *cq_info,
int ionic_heartbeat_check(struct ionic *ionic);
bool ionic_is_fw_running(struct ionic_dev *idev);
+bool ionic_adminq_poke_doorbell(struct ionic_queue *q);
+bool ionic_txq_poke_doorbell(struct ionic_queue *q);
+bool ionic_rxq_poke_doorbell(struct ionic_queue *q);
+
#endif /* _IONIC_DEV_H_ */
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index e51d8be7911c..63a78a9ac241 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -16,6 +16,7 @@
#include "ionic.h"
#include "ionic_bus.h"
+#include "ionic_dev.h"
#include "ionic_lif.h"
#include "ionic_txrx.h"
#include "ionic_ethtool.h"
@@ -200,6 +201,13 @@ void ionic_link_status_check_request(struct ionic_lif *lif, bool can_sleep)
}
}
+static void ionic_napi_deadline(struct timer_list *timer)
+{
+ struct ionic_qcq *qcq = container_of(timer, struct ionic_qcq, napi_deadline);
+
+ napi_schedule(&qcq->napi);
+}
+
static irqreturn_t ionic_isr(int irq, void *data)
{
struct napi_struct *napi = data;
@@ -325,6 +333,7 @@ static int ionic_qcq_disable(struct ionic_lif *lif, struct ionic_qcq *qcq, int f
synchronize_irq(qcq->intr.vector);
irq_set_affinity_hint(qcq->intr.vector, NULL);
napi_disable(&qcq->napi);
+ del_timer_sync(&qcq->napi_deadline);
}
/* If there was a previous fw communcation error, don't bother with
@@ -460,6 +469,7 @@ static void ionic_link_qcq_interrupts(struct ionic_qcq *src_qcq,
n_qcq->intr.vector = src_qcq->intr.vector;
n_qcq->intr.index = src_qcq->intr.index;
+ n_qcq->napi_qcq = src_qcq->napi_qcq;
}
static int ionic_alloc_qcq_interrupt(struct ionic_lif *lif, struct ionic_qcq *qcq)
@@ -784,8 +794,14 @@ static int ionic_lif_txq_init(struct ionic_lif *lif, struct ionic_qcq *qcq)
dev_dbg(dev, "txq->hw_type %d\n", q->hw_type);
dev_dbg(dev, "txq->hw_index %d\n", q->hw_index);
- if (test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state))
+ q->dbell_deadline = IONIC_TX_DOORBELL_DEADLINE;
+ q->dbell_jiffies = jiffies;
+
+ if (test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state)) {
netif_napi_add(lif->netdev, &qcq->napi, ionic_tx_napi);
+ qcq->napi_qcq = qcq;
+ timer_setup(&qcq->napi_deadline, ionic_napi_deadline, 0);
+ }
qcq->flags |= IONIC_QCQ_F_INITED;
@@ -839,11 +855,17 @@ static int ionic_lif_rxq_init(struct ionic_lif *lif, struct ionic_qcq *qcq)
dev_dbg(dev, "rxq->hw_type %d\n", q->hw_type);
dev_dbg(dev, "rxq->hw_index %d\n", q->hw_index);
+ q->dbell_deadline = IONIC_RX_MIN_DOORBELL_DEADLINE;
+ q->dbell_jiffies = jiffies;
+
if (test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state))
netif_napi_add(lif->netdev, &qcq->napi, ionic_rx_napi);
else
netif_napi_add(lif->netdev, &qcq->napi, ionic_txrx_napi);
+ qcq->napi_qcq = qcq;
+ timer_setup(&qcq->napi_deadline, ionic_napi_deadline, 0);
+
qcq->flags |= IONIC_QCQ_F_INITED;
return 0;
@@ -1161,6 +1183,7 @@ static int ionic_adminq_napi(struct napi_struct *napi, int budget)
struct ionic_dev *idev = &lif->ionic->idev;
unsigned long irqflags;
unsigned int flags = 0;
+ bool resched = false;
int rx_work = 0;
int tx_work = 0;
int n_work = 0;
@@ -1198,6 +1221,16 @@ static int ionic_adminq_napi(struct napi_struct *napi, int budget)
ionic_intr_credits(idev->intr_ctrl, intr->index, credits, flags);
}
+ if (!a_work && ionic_adminq_poke_doorbell(&lif->adminqcq->q))
+ resched = true;
+ if (lif->hwstamp_rxq && !rx_work && ionic_rxq_poke_doorbell(&lif->hwstamp_rxq->q))
+ resched = true;
+ if (lif->hwstamp_txq && !tx_work && ionic_txq_poke_doorbell(&lif->hwstamp_txq->q))
+ resched = true;
+ if (resched)
+ mod_timer(&lif->adminqcq->napi_deadline,
+ jiffies + IONIC_NAPI_DEADLINE);
+
return work_done;
}
@@ -3256,8 +3289,14 @@ static int ionic_lif_adminq_init(struct ionic_lif *lif)
dev_dbg(dev, "adminq->hw_type %d\n", q->hw_type);
dev_dbg(dev, "adminq->hw_index %d\n", q->hw_index);
+ q->dbell_deadline = IONIC_ADMIN_DOORBELL_DEADLINE;
+ q->dbell_jiffies = jiffies;
+
netif_napi_add(lif->netdev, &qcq->napi, ionic_adminq_napi);
+ qcq->napi_qcq = qcq;
+ timer_setup(&qcq->napi_deadline, ionic_napi_deadline, 0);
+
napi_enable(&qcq->napi);
if (qcq->flags & IONIC_QCQ_F_INTR)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.h b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
index a53984bf3544..734519895614 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
@@ -74,8 +74,10 @@ struct ionic_qcq {
struct ionic_queue q;
struct ionic_cq cq;
struct ionic_intr_info intr;
+ struct timer_list napi_deadline;
struct napi_struct napi;
unsigned int flags;
+ struct ionic_qcq *napi_qcq;
struct dentry *dentry;
};
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c
index a13530ec4dd8..08c42b039d92 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c
@@ -289,6 +289,35 @@ static void ionic_adminq_cb(struct ionic_queue *q,
complete_all(&ctx->work);
}
+bool ionic_adminq_poke_doorbell(struct ionic_queue *q)
+{
+ struct ionic_lif *lif = q->lif;
+ unsigned long now, then, dif;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&lif->adminq_lock, irqflags);
+
+ if (q->tail_idx == q->head_idx) {
+ spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
+ return false;
+ }
+
+ now = READ_ONCE(jiffies);
+ then = q->dbell_jiffies;
+ dif = now - then;
+
+ if (dif > q->dbell_deadline) {
+ ionic_dbell_ring(q->lif->kern_dbpage, q->hw_type,
+ q->dbval | q->head_idx);
+
+ q->dbell_jiffies = now;
+ }
+
+ spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
+
+ return true;
+}
+
int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
{
struct ionic_desc_info *desc_info;
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index 0c3977416cd1..f761780f0162 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -22,6 +22,67 @@ static inline void ionic_rxq_post(struct ionic_queue *q, bool ring_dbell,
ionic_q_post(q, ring_dbell, cb_func, cb_arg);
}
+bool ionic_txq_poke_doorbell(struct ionic_queue *q)
+{
+ unsigned long now, then, dif;
+ struct netdev_queue *netdev_txq;
+ struct net_device *netdev;
+
+ netdev = q->lif->netdev;
+ netdev_txq = netdev_get_tx_queue(netdev, q->index);
+
+ HARD_TX_LOCK(netdev, netdev_txq, smp_processor_id());
+
+ if (q->tail_idx == q->head_idx) {
+ HARD_TX_UNLOCK(netdev, netdev_txq);
+ return false;
+ }
+
+ now = READ_ONCE(jiffies);
+ then = q->dbell_jiffies;
+ dif = now - then;
+
+ if (dif > q->dbell_deadline) {
+ ionic_dbell_ring(q->lif->kern_dbpage, q->hw_type,
+ q->dbval | q->head_idx);
+
+ q->dbell_jiffies = now;
+ }
+
+ HARD_TX_UNLOCK(netdev, netdev_txq);
+
+ return true;
+}
+
+bool ionic_rxq_poke_doorbell(struct ionic_queue *q)
+{
+ unsigned long now, then, dif;
+
+ /* no lock, called from rx napi or txrx napi, nothing else can fill */
+
+ if (q->tail_idx == q->head_idx)
+ return false;
+
+ now = READ_ONCE(jiffies);
+ then = q->dbell_jiffies;
+ dif = now - then;
+
+ if (dif > q->dbell_deadline) {
+ ionic_dbell_ring(q->lif->kern_dbpage, q->hw_type,
+ q->dbval | q->head_idx);
+
+ q->dbell_jiffies = now;
+
+ dif = 2 * q->dbell_deadline;
+ if (dif > IONIC_RX_MAX_DOORBELL_DEADLINE)
+ dif = IONIC_RX_MAX_DOORBELL_DEADLINE;
+
+ q->dbell_deadline = dif;
+ }
+
+ return true;
+}
+
static inline struct netdev_queue *q_to_ndq(struct ionic_queue *q)
{
return netdev_get_tx_queue(q->lif->netdev, q->index);
@@ -424,6 +485,12 @@ void ionic_rx_fill(struct ionic_queue *q)
ionic_dbell_ring(q->lif->kern_dbpage, q->hw_type,
q->dbval | q->head_idx);
+
+ q->dbell_deadline = IONIC_RX_MIN_DOORBELL_DEADLINE;
+ q->dbell_jiffies = jiffies;
+
+ mod_timer(&q_to_qcq(q)->napi_qcq->napi_deadline,
+ jiffies + IONIC_NAPI_DEADLINE);
}
void ionic_rx_empty(struct ionic_queue *q)
@@ -511,6 +578,9 @@ int ionic_tx_napi(struct napi_struct *napi, int budget)
work_done, flags);
}
+ if (!work_done && ionic_txq_poke_doorbell(&qcq->q))
+ mod_timer(&qcq->napi_deadline, jiffies + IONIC_NAPI_DEADLINE);
+
return work_done;
}
@@ -544,23 +614,29 @@ int ionic_rx_napi(struct napi_struct *napi, int budget)
work_done, flags);
}
+ if (!work_done && ionic_rxq_poke_doorbell(&qcq->q))
+ mod_timer(&qcq->napi_deadline, jiffies + IONIC_NAPI_DEADLINE);
+
return work_done;
}
int ionic_txrx_napi(struct napi_struct *napi, int budget)
{
- struct ionic_qcq *qcq = napi_to_qcq(napi);
+ struct ionic_qcq *rxqcq = napi_to_qcq(napi);
struct ionic_cq *rxcq = napi_to_cq(napi);
unsigned int qi = rxcq->bound_q->index;
+ struct ionic_qcq *txqcq;
struct ionic_dev *idev;
struct ionic_lif *lif;
struct ionic_cq *txcq;
+ bool resched = false;
u32 rx_work_done = 0;
u32 tx_work_done = 0;
u32 flags = 0;
lif = rxcq->bound_q->lif;
idev = &lif->ionic->idev;
+ txqcq = lif->txqcqs[qi];
txcq = &lif->txqcqs[qi]->cq;
tx_work_done = ionic_cq_service(txcq, IONIC_TX_BUDGET_DEFAULT,
@@ -572,7 +648,7 @@ int ionic_txrx_napi(struct napi_struct *napi, int budget)
ionic_rx_fill(rxcq->bound_q);
if (rx_work_done < budget && napi_complete_done(napi, rx_work_done)) {
- ionic_dim_update(qcq, 0);
+ ionic_dim_update(rxqcq, 0);
flags |= IONIC_INTR_CRED_UNMASK;
rxcq->bound_intr->rearm_count++;
}
@@ -583,6 +659,13 @@ int ionic_txrx_napi(struct napi_struct *napi, int budget)
tx_work_done + rx_work_done, flags);
}
+ if (!rx_work_done && ionic_rxq_poke_doorbell(&rxqcq->q))
+ resched = true;
+ if (!tx_work_done && ionic_txq_poke_doorbell(&txqcq->q))
+ resched = true;
+ if (resched)
+ mod_timer(&rxqcq->napi_deadline, jiffies + IONIC_NAPI_DEADLINE);
+
return rx_work_done;
}
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v2 net 0/3] ionic: code maintenance
2023-02-02 21:55 [PATCH v2 net 0/3] ionic: code maintenance Shannon Nelson
` (2 preceding siblings ...)
2023-02-02 21:55 ` [PATCH v2 net 3/3] ionic: missed doorbell workaround Shannon Nelson
@ 2023-02-04 4:10 ` patchwork-bot+netdevbpf
3 siblings, 0 replies; 5+ messages in thread
From: patchwork-bot+netdevbpf @ 2023-02-04 4:10 UTC (permalink / raw)
To: Shannon Nelson; +Cc: netdev, davem, kuba, drivers
Hello:
This series was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@kernel.org>:
On Thu, 2 Feb 2023 13:55:34 -0800 you wrote:
> These are a few fixes for a hardware bug, a couple of sw bugs,
> and a little code cleanup.
>
> v2: dropped 3 patches which will be resubmitted for net-next
> added Leon's Reviewed-by where applicable
> Fixed Allen's Author and SoB addresses
>
> [...]
Here is the summary with links:
- [v2,net,1/3] ionic: clean interrupt before enabling queue to avoid credit race
https://git.kernel.org/netdev/net/c/e8797a058466
- [v2,net,2/3] ionic: clear up notifyq alloc commentary
https://git.kernel.org/netdev/net/c/1fffb0254178
- [v2,net,3/3] ionic: missed doorbell workaround
https://git.kernel.org/netdev/net/c/b69585bfcece
You are awesome, thank you!
--
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2023-02-02 21:55 [PATCH v2 net 0/3] ionic: code maintenance Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 1/3] ionic: clean interrupt before enabling queue to avoid credit race Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 2/3] ionic: clear up notifyq alloc commentary Shannon Nelson
2023-02-02 21:55 ` [PATCH v2 net 3/3] ionic: missed doorbell workaround Shannon Nelson
2023-02-04 4:10 ` [PATCH v2 net 0/3] ionic: code maintenance patchwork-bot+netdevbpf
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