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Date: Fri, 23 Mar 2018 17:37:28 -0700
From: Felix Manlunas <felix.manlunas@...ium.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, raghu.vatsavayi@...ium.com,
derek.chickles@...ium.com, satananda.burla@...ium.com,
intiyaz.basha@...ium.com
Subject: [PATCH net-next 07/13] liquidio: Removed netif_is_multiqueue check
From: Intiyaz Basha <intiyaz.basha@...ium.com>
Removing checks for netif_is_multiqueue.
Configuring single queue will be a multiqueue netdev with one queues.
Signed-off-by: Intiyaz Basha <intiyaz.basha@...ium.com>
Acked-by: Derek Chickles <derek.chickles@...ium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@...ium.com>
---
drivers/net/ethernet/cavium/liquidio/lio_core.c | 18 ++---
drivers/net/ethernet/cavium/liquidio/lio_main.c | 93 +++++++---------------
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c | 55 ++++---------
.../net/ethernet/cavium/liquidio/octeon_network.h | 50 ++++--------
4 files changed, 64 insertions(+), 152 deletions(-)
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_core.c b/drivers/net/ethernet/cavium/liquidio/lio_core.c
index 666cf7e..73e70e0 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_core.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_core.c
@@ -377,20 +377,12 @@ static void lio_update_txq_status(struct octeon_device *oct, int iq_num)
return;
lio = GET_LIO(netdev);
- if (netif_is_multiqueue(netdev)) {
- if (__netif_subqueue_stopped(netdev, iq->q_index) &&
- lio->linfo.link.s.link_up &&
- (!octnet_iq_is_full(oct, iq_num))) {
- netif_wake_subqueue(netdev, iq->q_index);
- INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, iq_num,
- tx_restart, 1);
- }
- } else if (netif_queue_stopped(netdev) &&
- lio->linfo.link.s.link_up &&
- (!octnet_iq_is_full(oct, lio->txq))) {
- INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, lio->txq,
+ if (__netif_subqueue_stopped(netdev, iq->q_index) &&
+ lio->linfo.link.s.link_up &&
+ (!octnet_iq_is_full(oct, iq_num))) {
+ netif_wake_subqueue(netdev, iq->q_index);
+ INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, iq_num,
tx_restart, 1);
- netif_wake_queue(netdev);
}
}
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index 41e992c..5ef9aa0 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -515,10 +515,7 @@ static void liquidio_deinit_pci(void)
*/
static inline void wake_q(struct net_device *netdev, int q)
{
- if (netif_is_multiqueue(netdev))
- netif_wake_subqueue(netdev, q);
- else
- netif_wake_queue(netdev);
+ netif_wake_subqueue(netdev, q);
}
/**
@@ -528,10 +525,7 @@ static inline void wake_q(struct net_device *netdev, int q)
*/
static inline void stop_q(struct net_device *netdev, int q)
{
- if (netif_is_multiqueue(netdev))
- netif_stop_subqueue(netdev, q);
- else
- netif_stop_queue(netdev);
+ netif_stop_subqueue(netdev, q);
}
/**
@@ -541,33 +535,24 @@ static inline void stop_q(struct net_device *netdev, int q)
*/
static inline int check_txq_status(struct lio *lio)
{
+ int numqs = lio->netdev->num_tx_queues;
int ret_val = 0;
+ int q, iq;
- if (netif_is_multiqueue(lio->netdev)) {
- int numqs = lio->netdev->num_tx_queues;
- int q, iq = 0;
-
- /* check each sub-queue state */
- for (q = 0; q < numqs; q++) {
- iq = lio->linfo.txpciq[q %
- lio->oct_dev->num_iqs].s.q_no;
- if (octnet_iq_is_full(lio->oct_dev, iq))
- continue;
- if (__netif_subqueue_stopped(lio->netdev, q)) {
- wake_q(lio->netdev, q);
- INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, iq,
- tx_restart, 1);
- ret_val++;
- }
+ /* check each sub-queue state */
+ for (q = 0; q < numqs; q++) {
+ iq = lio->linfo.txpciq[q %
+ lio->oct_dev->num_iqs].s.q_no;
+ if (octnet_iq_is_full(lio->oct_dev, iq))
+ continue;
+ if (__netif_subqueue_stopped(lio->netdev, q)) {
+ wake_q(lio->netdev, q);
+ INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, iq,
+ tx_restart, 1);
+ ret_val++;
}
- } else {
- if (octnet_iq_is_full(lio->oct_dev, lio->txq))
- return 0;
- wake_q(lio->netdev, lio->txq);
- INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, lio->txq,
- tx_restart, 1);
- ret_val = 1;
}
+
return ret_val;
}
@@ -1671,15 +1656,10 @@ static int octeon_pci_os_setup(struct octeon_device *oct)
*/
static inline int check_txq_state(struct lio *lio, struct sk_buff *skb)
{
- int q = 0, iq = 0;
+ int q, iq;
- if (netif_is_multiqueue(lio->netdev)) {
- q = skb->queue_mapping;
- iq = lio->linfo.txpciq[(q % lio->oct_dev->num_iqs)].s.q_no;
- } else {
- iq = lio->txq;
- q = iq;
- }
+ q = skb->queue_mapping;
+ iq = lio->linfo.txpciq[(q % lio->oct_dev->num_iqs)].s.q_no;
if (octnet_iq_is_full(lio->oct_dev, iq))
return 0;
@@ -2568,14 +2548,10 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
lio = GET_LIO(netdev);
oct = lio->oct_dev;
- if (netif_is_multiqueue(netdev)) {
- q_idx = skb->queue_mapping;
- q_idx = (q_idx % (lio->linfo.num_txpciq));
- tag = q_idx;
- iq_no = lio->linfo.txpciq[q_idx].s.q_no;
- } else {
- iq_no = lio->txq;
- }
+ q_idx = skb->queue_mapping;
+ q_idx = (q_idx % (lio->linfo.num_txpciq));
+ tag = q_idx;
+ iq_no = lio->linfo.txpciq[q_idx].s.q_no;
stats = &oct->instr_queue[iq_no]->stats;
@@ -2606,23 +2582,14 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
ndata.q_no = iq_no;
- if (netif_is_multiqueue(netdev)) {
- if (octnet_iq_is_full(oct, ndata.q_no)) {
- /* defer sending if queue is full */
- netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
- ndata.q_no);
- stats->tx_iq_busy++;
- return NETDEV_TX_BUSY;
- }
- } else {
- if (octnet_iq_is_full(oct, lio->txq)) {
- /* defer sending if queue is full */
- stats->tx_iq_busy++;
- netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
- lio->txq);
- return NETDEV_TX_BUSY;
- }
+ if (octnet_iq_is_full(oct, ndata.q_no)) {
+ /* defer sending if queue is full */
+ netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
+ ndata.q_no);
+ stats->tx_iq_busy++;
+ return NETDEV_TX_BUSY;
}
+
/* pr_info(" XMIT - valid Qs: %d, 1st Q no: %d, cpu: %d, q_no:%d\n",
* lio->linfo.num_txpciq, lio->txq, cpu, ndata.q_no);
*/
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
index 57b6ee5..f46289d 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
@@ -291,10 +291,7 @@ static pci_ers_result_t liquidio_pcie_error_detected(struct pci_dev *pdev,
*/
static void wake_q(struct net_device *netdev, int q)
{
- if (netif_is_multiqueue(netdev))
- netif_wake_subqueue(netdev, q);
- else
- netif_wake_queue(netdev);
+ netif_wake_subqueue(netdev, q);
}
/**
@@ -304,10 +301,7 @@ static void wake_q(struct net_device *netdev, int q)
*/
static void stop_q(struct net_device *netdev, int q)
{
- if (netif_is_multiqueue(netdev))
- netif_stop_subqueue(netdev, q);
- else
- netif_stop_queue(netdev);
+ netif_stop_subqueue(netdev, q);
}
/**
@@ -986,15 +980,10 @@ static int octeon_pci_os_setup(struct octeon_device *oct)
*/
static int check_txq_state(struct lio *lio, struct sk_buff *skb)
{
- int q = 0, iq = 0;
+ int q, iq;
- if (netif_is_multiqueue(lio->netdev)) {
- q = skb->queue_mapping;
- iq = lio->linfo.txpciq[q % lio->oct_dev->num_iqs].s.q_no;
- } else {
- iq = lio->txq;
- q = iq;
- }
+ q = skb->queue_mapping;
+ iq = lio->linfo.txpciq[q % lio->oct_dev->num_iqs].s.q_no;
if (octnet_iq_is_full(lio->oct_dev, iq))
return 0;
@@ -1635,14 +1624,10 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
lio = GET_LIO(netdev);
oct = lio->oct_dev;
- if (netif_is_multiqueue(netdev)) {
- q_idx = skb->queue_mapping;
- q_idx = (q_idx % (lio->linfo.num_txpciq));
- tag = q_idx;
- iq_no = lio->linfo.txpciq[q_idx].s.q_no;
- } else {
- iq_no = lio->txq;
- }
+ q_idx = skb->queue_mapping;
+ q_idx = (q_idx % (lio->linfo.num_txpciq));
+ tag = q_idx;
+ iq_no = lio->linfo.txpciq[q_idx].s.q_no;
stats = &oct->instr_queue[iq_no]->stats;
@@ -1671,22 +1656,12 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
ndata.q_no = iq_no;
- if (netif_is_multiqueue(netdev)) {
- if (octnet_iq_is_full(oct, ndata.q_no)) {
- /* defer sending if queue is full */
- netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
- ndata.q_no);
- stats->tx_iq_busy++;
- return NETDEV_TX_BUSY;
- }
- } else {
- if (octnet_iq_is_full(oct, lio->txq)) {
- /* defer sending if queue is full */
- stats->tx_iq_busy++;
- netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
- ndata.q_no);
- return NETDEV_TX_BUSY;
- }
+ if (octnet_iq_is_full(oct, ndata.q_no)) {
+ /* defer sending if queue is full */
+ netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
+ ndata.q_no);
+ stats->tx_iq_busy++;
+ return NETDEV_TX_BUSY;
}
ndata.datasize = skb->len;
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_network.h b/drivers/net/ethernet/cavium/liquidio/octeon_network.h
index 72a581a..7922a69 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_network.h
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_network.h
@@ -512,14 +512,10 @@ static inline int wait_for_pending_requests(struct octeon_device *oct)
*/
static inline void txqs_stop(struct net_device *netdev)
{
- if (netif_is_multiqueue(netdev)) {
- int i;
+ int i;
- for (i = 0; i < netdev->num_tx_queues; i++)
- netif_stop_subqueue(netdev, i);
- } else {
- netif_stop_queue(netdev);
- }
+ for (i = 0; i < netdev->num_tx_queues; i++)
+ netif_stop_subqueue(netdev, i);
}
/**
@@ -529,24 +525,16 @@ static inline void txqs_stop(struct net_device *netdev)
static inline void txqs_wake(struct net_device *netdev)
{
struct lio *lio = GET_LIO(netdev);
+ int i, qno;
- if (netif_is_multiqueue(netdev)) {
- int i;
+ for (i = 0; i < netdev->num_tx_queues; i++) {
+ qno = lio->linfo.txpciq[i % lio->oct_dev->num_iqs].s.q_no;
- for (i = 0; i < netdev->num_tx_queues; i++) {
- int qno = lio->linfo.txpciq[i %
- lio->oct_dev->num_iqs].s.q_no;
-
- if (__netif_subqueue_stopped(netdev, i)) {
- INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, qno,
- tx_restart, 1);
- netif_wake_subqueue(netdev, i);
- }
+ if (__netif_subqueue_stopped(netdev, i)) {
+ INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, qno,
+ tx_restart, 1);
+ netif_wake_subqueue(netdev, i);
}
- } else {
- INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, lio->txq,
- tx_restart, 1);
- netif_wake_queue(netdev);
}
}
@@ -557,27 +545,17 @@ static inline void txqs_wake(struct net_device *netdev)
static inline void txqs_start(struct net_device *netdev)
{
struct lio *lio = GET_LIO(netdev);
+ int i;
if (lio->linfo.link.s.link_up) {
- if (netif_is_multiqueue(netdev)) {
- int i;
-
- for (i = 0; i < netdev->num_tx_queues; i++)
- netif_start_subqueue(netdev, i);
- } else {
- netif_start_queue(netdev);
- }
+ for (i = 0; i < netdev->num_tx_queues; i++)
+ netif_start_subqueue(netdev, i);
}
}
static inline int skb_iq(struct lio *lio, struct sk_buff *skb)
{
- int q = 0;
-
- if (netif_is_multiqueue(lio->netdev))
- q = skb->queue_mapping % lio->linfo.num_txpciq;
-
- return q;
+ return skb->queue_mapping % lio->linfo.num_txpciq;
}
#endif
--
1.8.3.1
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