* [net-next 01/11] ixgbe: Change default Tx work limit size to 256 buffers
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 02/11] v2 ixgbe: consolidate all MSI-X ring interrupts and poll routines into one Jeff Kirsher
` (10 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
This change makes it so that the default Tx work limit is 256 buffers or
1/2 of an entire ring instead of a full ring size so that it is much more
likely that we will be able to actually reach the work limit value.
Previously with the value set to an entire ring it would not have been
possible for us to trigger an event due to the fact that the Tx work is
stopped at the point where we cannot place one more buffer on the ring and
it is not restarted until cleanup is complete.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 +
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 8 ++++----
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 58482fc..3f5a744 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -53,6 +53,7 @@
/* TX/RX descriptor defines */
#define IXGBE_DEFAULT_TXD 512
+#define IXGBE_DEFAULT_TX_WORK 256
#define IXGBE_MAX_TXD 4096
#define IXGBE_MIN_TXD 64
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index a30f826..0f633ad 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -804,7 +804,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
struct ixgbe_tx_buffer *tx_buffer;
union ixgbe_adv_tx_desc *tx_desc;
unsigned int total_bytes = 0, total_packets = 0;
- u16 budget = q_vector->tx.work_limit;
+ unsigned int budget = q_vector->tx.work_limit;
u16 i = tx_ring->next_to_clean;
tx_buffer = &tx_ring->tx_buffer_info[i];
@@ -891,7 +891,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
ixgbe_tx_timeout_reset(adapter);
/* the adapter is about to reset, no point in enabling stuff */
- return budget;
+ return true;
}
#define TX_WAKE_THRESHOLD (DESC_NEEDED * 2)
@@ -908,7 +908,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
}
}
- return budget;
+ return !!budget;
}
#ifdef CONFIG_IXGBE_DCA
@@ -5091,7 +5091,7 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
adapter->rx_ring_count = IXGBE_DEFAULT_RXD;
/* set default work limits */
- adapter->tx_work_limit = adapter->tx_ring_count;
+ adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK;
/* initialize eeprom parameters */
if (ixgbe_init_eeprom_params_generic(hw)) {
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 02/11] v2 ixgbe: consolidate all MSI-X ring interrupts and poll routines into one
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
2011-09-16 4:42 ` [net-next 01/11] ixgbe: Change default Tx work limit size to 256 buffers Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 03/11] ixgbe: cleanup allocation and freeing of IRQ affinity hint Jeff Kirsher
` (9 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
This change consolidates all of the MSI-X interrupt and polling routines
into two single functions. One for the interrupt and one for the code.
The main advantage to doing this is that the compiler can optimize the
routines into single monolithic functions which should allow all of them
function to occupy a single block of memory and as such avoid jumping
around.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 279 ++++++-------------------
1 files changed, 63 insertions(+), 216 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 0f633ad..3ce0277 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1297,9 +1297,9 @@ static inline bool ixgbe_get_rsc_state(union ixgbe_adv_rx_desc *rx_desc)
IXGBE_RXDADV_RSCCNT_MASK);
}
-static void ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
+static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
struct ixgbe_ring *rx_ring,
- int *work_done, int work_to_do)
+ int budget)
{
struct ixgbe_adapter *adapter = q_vector->adapter;
union ixgbe_adv_rx_desc *rx_desc, *next_rxd;
@@ -1479,11 +1479,11 @@ static void ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
#endif /* IXGBE_FCOE */
ixgbe_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc);
+ budget--;
next_desc:
rx_desc->wb.upper.status_error = 0;
- (*work_done)++;
- if (*work_done >= work_to_do)
+ if (!budget)
break;
/* return some buffers to hardware, one at a time is too slow */
@@ -1524,9 +1524,10 @@ next_desc:
u64_stats_update_end(&rx_ring->syncp);
q_vector->rx.total_packets += total_rx_packets;
q_vector->rx.total_bytes += total_rx_bytes;
+
+ return !!budget;
}
-static int ixgbe_clean_rxonly(struct napi_struct *, int);
/**
* ixgbe_configure_msix - Configure MSI-X hardware
* @adapter: board private structure
@@ -1980,167 +1981,18 @@ static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter,
/* skip the flush */
}
-static irqreturn_t ixgbe_msix_clean_tx(int irq, void *data)
-{
- struct ixgbe_q_vector *q_vector = data;
-
- if (!q_vector->tx.count)
- return IRQ_HANDLED;
-
- /* EIAM disabled interrupts (on this vector) for us */
- napi_schedule(&q_vector->napi);
-
- return IRQ_HANDLED;
-}
-
-/**
- * ixgbe_msix_clean_rx - single unshared vector rx clean (all queues)
- * @irq: unused
- * @data: pointer to our q_vector struct for this interrupt vector
- **/
-static irqreturn_t ixgbe_msix_clean_rx(int irq, void *data)
+static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data)
{
struct ixgbe_q_vector *q_vector = data;
- if (!q_vector->rx.count)
- return IRQ_HANDLED;
-
/* EIAM disabled interrupts (on this vector) for us */
- napi_schedule(&q_vector->napi);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ixgbe_msix_clean_many(int irq, void *data)
-{
- struct ixgbe_q_vector *q_vector = data;
- if (!q_vector->tx.count && !q_vector->rx.count)
- return IRQ_HANDLED;
-
- /* EIAM disabled interrupts (on this vector) for us */
- napi_schedule(&q_vector->napi);
+ if (q_vector->rx.ring || q_vector->tx.ring)
+ napi_schedule(&q_vector->napi);
return IRQ_HANDLED;
}
-/**
- * ixgbe_clean_rxonly - msix (aka one shot) rx clean routine
- * @napi: napi struct with our devices info in it
- * @budget: amount of work driver is allowed to do this pass, in packets
- *
- * This function is optimized for cleaning one queue only on a single
- * q_vector!!!
- **/
-static int ixgbe_clean_rxonly(struct napi_struct *napi, int budget)
-{
- struct ixgbe_q_vector *q_vector =
- container_of(napi, struct ixgbe_q_vector, napi);
- struct ixgbe_adapter *adapter = q_vector->adapter;
- int work_done = 0;
-
-#ifdef CONFIG_IXGBE_DCA
- if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
- ixgbe_update_dca(q_vector);
-#endif
-
- ixgbe_clean_rx_irq(q_vector, q_vector->rx.ring, &work_done, budget);
-
- /* If all Rx work done, exit the polling mode */
- if (work_done < budget) {
- napi_complete(napi);
- if (adapter->rx_itr_setting & 1)
- ixgbe_set_itr(q_vector);
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- ixgbe_irq_enable_queues(adapter,
- ((u64)1 << q_vector->v_idx));
- }
-
- return work_done;
-}
-
-/**
- * ixgbe_clean_rxtx_many - msix (aka one shot) rx clean routine
- * @napi: napi struct with our devices info in it
- * @budget: amount of work driver is allowed to do this pass, in packets
- *
- * This function will clean more than one rx queue associated with a
- * q_vector.
- **/
-static int ixgbe_clean_rxtx_many(struct napi_struct *napi, int budget)
-{
- struct ixgbe_q_vector *q_vector =
- container_of(napi, struct ixgbe_q_vector, napi);
- struct ixgbe_adapter *adapter = q_vector->adapter;
- struct ixgbe_ring *ring;
- int work_done = 0;
- bool clean_complete = true;
-
-#ifdef CONFIG_IXGBE_DCA
- if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
- ixgbe_update_dca(q_vector);
-#endif
-
- for (ring = q_vector->tx.ring; ring != NULL; ring = ring->next)
- clean_complete &= ixgbe_clean_tx_irq(q_vector, ring);
-
- /* attempt to distribute budget to each queue fairly, but don't allow
- * the budget to go below 1 because we'll exit polling */
- budget /= (q_vector->rx.count ?: 1);
- budget = max(budget, 1);
-
- for (ring = q_vector->rx.ring; ring != NULL; ring = ring->next)
- ixgbe_clean_rx_irq(q_vector, ring, &work_done, budget);
-
- if (!clean_complete)
- work_done = budget;
-
- /* If all Rx work done, exit the polling mode */
- if (work_done < budget) {
- napi_complete(napi);
- if (adapter->rx_itr_setting & 1)
- ixgbe_set_itr(q_vector);
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- ixgbe_irq_enable_queues(adapter,
- ((u64)1 << q_vector->v_idx));
- return 0;
- }
-
- return work_done;
-}
-
-/**
- * ixgbe_clean_txonly - msix (aka one shot) tx clean routine
- * @napi: napi struct with our devices info in it
- * @budget: amount of work driver is allowed to do this pass, in packets
- *
- * This function is optimized for cleaning one queue only on a single
- * q_vector!!!
- **/
-static int ixgbe_clean_txonly(struct napi_struct *napi, int budget)
-{
- struct ixgbe_q_vector *q_vector =
- container_of(napi, struct ixgbe_q_vector, napi);
- struct ixgbe_adapter *adapter = q_vector->adapter;
-
-#ifdef CONFIG_IXGBE_DCA
- if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
- ixgbe_update_dca(q_vector);
-#endif
-
- if (!ixgbe_clean_tx_irq(q_vector, q_vector->tx.ring))
- return budget;
-
- /* If all Tx work done, exit the polling mode */
- napi_complete(napi);
- if (adapter->tx_itr_setting & 1)
- ixgbe_set_itr(q_vector);
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx));
-
- return 0;
-}
-
static inline void map_vector_to_rxq(struct ixgbe_adapter *a, int v_idx,
int r_idx)
{
@@ -2241,7 +2093,6 @@ out:
static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- irqreturn_t (*handler)(int, void *);
int i, vector, q_vectors, err;
int ri = 0, ti = 0;
@@ -2252,31 +2103,25 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
if (err)
return err;
-#define SET_HANDLER(_v) (((_v)->rx.count && (_v)->tx.count) \
- ? &ixgbe_msix_clean_many : \
- (_v)->rx.count ? &ixgbe_msix_clean_rx : \
- (_v)->tx.count ? &ixgbe_msix_clean_tx : \
- NULL)
for (vector = 0; vector < q_vectors; vector++) {
struct ixgbe_q_vector *q_vector = adapter->q_vector[vector];
- handler = SET_HANDLER(q_vector);
- if (handler == &ixgbe_msix_clean_rx) {
+ if (q_vector->tx.ring && q_vector->rx.ring) {
snprintf(q_vector->name, sizeof(q_vector->name) - 1,
- "%s-%s-%d", netdev->name, "rx", ri++);
- } else if (handler == &ixgbe_msix_clean_tx) {
+ "%s-%s-%d", netdev->name, "TxRx", ri++);
+ ti++;
+ } else if (q_vector->rx.ring) {
snprintf(q_vector->name, sizeof(q_vector->name) - 1,
- "%s-%s-%d", netdev->name, "tx", ti++);
- } else if (handler == &ixgbe_msix_clean_many) {
+ "%s-%s-%d", netdev->name, "rx", ri++);
+ } else if (q_vector->tx.ring) {
snprintf(q_vector->name, sizeof(q_vector->name) - 1,
- "%s-%s-%d", netdev->name, "TxRx", ri++);
- ti++;
+ "%s-%s-%d", netdev->name, "tx", ti++);
} else {
/* skip this unused q_vector */
continue;
}
err = request_irq(adapter->msix_entries[vector].vector,
- handler, 0, q_vector->name,
+ &ixgbe_msix_clean_rings, 0, q_vector->name,
q_vector);
if (err) {
e_err(probe, "request_irq failed for MSIX interrupt "
@@ -2484,8 +2329,8 @@ static void ixgbe_free_irq(struct ixgbe_adapter *adapter)
i--;
for (; i >= 0; i--) {
/* free only the irqs that were actually requested */
- if (!adapter->q_vector[i]->rx.count &&
- !adapter->q_vector[i]->tx.count)
+ if (!adapter->q_vector[i]->rx.ring &&
+ !adapter->q_vector[i]->tx.ring)
continue;
free_irq(adapter->msix_entries[i].vector,
@@ -3478,19 +3323,8 @@ static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter)
q_vectors = 1;
for (q_idx = 0; q_idx < q_vectors; q_idx++) {
- struct napi_struct *napi;
q_vector = adapter->q_vector[q_idx];
- napi = &q_vector->napi;
- if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
- if (!q_vector->rx.count || !q_vector->tx.count) {
- if (q_vector->tx.count == 1)
- napi->poll = &ixgbe_clean_txonly;
- else if (q_vector->rx.count == 1)
- napi->poll = &ixgbe_clean_rxonly;
- }
- }
-
- napi_enable(napi);
+ napi_enable(&q_vector->napi);
}
}
@@ -4148,28 +3982,41 @@ static int ixgbe_poll(struct napi_struct *napi, int budget)
struct ixgbe_q_vector *q_vector =
container_of(napi, struct ixgbe_q_vector, napi);
struct ixgbe_adapter *adapter = q_vector->adapter;
- int tx_clean_complete, work_done = 0;
+ struct ixgbe_ring *ring;
+ int per_ring_budget;
+ bool clean_complete = true;
#ifdef CONFIG_IXGBE_DCA
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
ixgbe_update_dca(q_vector);
#endif
- tx_clean_complete = ixgbe_clean_tx_irq(q_vector, adapter->tx_ring[0]);
- ixgbe_clean_rx_irq(q_vector, adapter->rx_ring[0], &work_done, budget);
+ for (ring = q_vector->tx.ring; ring != NULL; ring = ring->next)
+ clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring);
- if (!tx_clean_complete)
- work_done = budget;
+ /* attempt to distribute budget to each queue fairly, but don't allow
+ * the budget to go below 1 because we'll exit polling */
+ if (q_vector->rx.count > 1)
+ per_ring_budget = max(budget/q_vector->rx.count, 1);
+ else
+ per_ring_budget = budget;
- /* If budget not fully consumed, exit the polling mode */
- if (work_done < budget) {
- napi_complete(napi);
- if (adapter->rx_itr_setting & 1)
- ixgbe_set_itr(q_vector);
- if (!test_bit(__IXGBE_DOWN, &adapter->state))
- ixgbe_irq_enable_queues(adapter, IXGBE_EIMS_RTX_QUEUE);
- }
- return work_done;
+ for (ring = q_vector->rx.ring; ring != NULL; ring = ring->next)
+ clean_complete &= ixgbe_clean_rx_irq(q_vector, ring,
+ per_ring_budget);
+
+ /* If all work not completed, return budget and keep polling */
+ if (!clean_complete)
+ return budget;
+
+ /* all work done, exit the polling mode */
+ napi_complete(napi);
+ if (adapter->rx_itr_setting & 1)
+ ixgbe_set_itr(q_vector);
+ if (!test_bit(__IXGBE_DOWN, &adapter->state))
+ ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx));
+
+ return 0;
}
/**
@@ -4810,19 +4657,15 @@ out:
**/
static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter)
{
- int q_idx, num_q_vectors;
+ int v_idx, num_q_vectors;
struct ixgbe_q_vector *q_vector;
- int (*poll)(struct napi_struct *, int);
- if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+ if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
- poll = &ixgbe_clean_rxtx_many;
- } else {
+ else
num_q_vectors = 1;
- poll = &ixgbe_poll;
- }
- for (q_idx = 0; q_idx < num_q_vectors; q_idx++) {
+ for (v_idx = 0; v_idx < num_q_vectors; v_idx++) {
q_vector = kzalloc_node(sizeof(struct ixgbe_q_vector),
GFP_KERNEL, adapter->node);
if (!q_vector)
@@ -4830,25 +4673,29 @@ static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter)
GFP_KERNEL);
if (!q_vector)
goto err_out;
+
q_vector->adapter = adapter;
+ q_vector->v_idx = v_idx;
+
if (q_vector->tx.count && !q_vector->rx.count)
q_vector->eitr = adapter->tx_eitr_param;
else
q_vector->eitr = adapter->rx_eitr_param;
- q_vector->v_idx = q_idx;
- netif_napi_add(adapter->netdev, &q_vector->napi, (*poll), 64);
- adapter->q_vector[q_idx] = q_vector;
+
+ netif_napi_add(adapter->netdev, &q_vector->napi,
+ ixgbe_poll, 64);
+ adapter->q_vector[v_idx] = q_vector;
}
return 0;
err_out:
- while (q_idx) {
- q_idx--;
- q_vector = adapter->q_vector[q_idx];
+ while (v_idx) {
+ v_idx--;
+ q_vector = adapter->q_vector[v_idx];
netif_napi_del(&q_vector->napi);
kfree(q_vector);
- adapter->q_vector[q_idx] = NULL;
+ adapter->q_vector[v_idx] = NULL;
}
return -ENOMEM;
}
@@ -6960,7 +6807,7 @@ static void ixgbe_netpoll(struct net_device *netdev)
int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
for (i = 0; i < num_q_vectors; i++) {
struct ixgbe_q_vector *q_vector = adapter->q_vector[i];
- ixgbe_msix_clean_many(0, q_vector);
+ ixgbe_msix_clean_rings(0, q_vector);
}
} else {
ixgbe_intr(adapter->pdev->irq, netdev);
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 03/11] ixgbe: cleanup allocation and freeing of IRQ affinity hint
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
2011-09-16 4:42 ` [net-next 01/11] ixgbe: Change default Tx work limit size to 256 buffers Jeff Kirsher
2011-09-16 4:42 ` [net-next 02/11] v2 ixgbe: consolidate all MSI-X ring interrupts and poll routines into one Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 04/11] ixgbe: Use ring->dev instead of adapter->pdev->dev when updating DCA Jeff Kirsher
` (8 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
The allocation and freeing of the IRQ affinity hint needs some updates
since there are a number of spots where we run into possible issues with
the hint not being correctly updated.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 76 ++++++++++++-------------
1 files changed, 36 insertions(+), 40 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 3ce0277..73a669d 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1565,20 +1565,6 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter)
q_vector->eitr = adapter->rx_eitr_param;
ixgbe_write_eitr(q_vector);
- /* If ATR is enabled, set interrupt affinity */
- if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
- /*
- * Allocate the affinity_hint cpumask, assign the mask
- * for this vector, and set our affinity_hint for
- * this irq.
- */
- if (!alloc_cpumask_var(&q_vector->affinity_mask,
- GFP_KERNEL))
- return;
- cpumask_set_cpu(v_idx, q_vector->affinity_mask);
- irq_set_affinity_hint(adapter->msix_entries[v_idx].vector,
- q_vector->affinity_mask);
- }
}
switch (adapter->hw.mac.type) {
@@ -2093,18 +2079,17 @@ out:
static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- int i, vector, q_vectors, err;
+ int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+ int vector, err;
int ri = 0, ti = 0;
- /* Decrement for Other and TCP Timer vectors */
- q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
-
err = ixgbe_map_rings_to_vectors(adapter);
if (err)
return err;
for (vector = 0; vector < q_vectors; vector++) {
struct ixgbe_q_vector *q_vector = adapter->q_vector[vector];
+ struct msix_entry *entry = &adapter->msix_entries[vector];
if (q_vector->tx.ring && q_vector->rx.ring) {
snprintf(q_vector->name, sizeof(q_vector->name) - 1,
@@ -2120,14 +2105,19 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
/* skip this unused q_vector */
continue;
}
- err = request_irq(adapter->msix_entries[vector].vector,
- &ixgbe_msix_clean_rings, 0, q_vector->name,
- q_vector);
+ err = request_irq(entry->vector, &ixgbe_msix_clean_rings, 0,
+ q_vector->name, q_vector);
if (err) {
e_err(probe, "request_irq failed for MSIX interrupt "
"Error: %d\n", err);
goto free_queue_irqs;
}
+ /* If Flow Director is enabled, set interrupt affinity */
+ if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
+ /* assign the mask for this irq */
+ irq_set_affinity_hint(entry->vector,
+ q_vector->affinity_mask);
+ }
}
sprintf(adapter->lsc_int_name, "%s:lsc", netdev->name);
@@ -2141,9 +2131,13 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
return 0;
free_queue_irqs:
- for (i = vector - 1; i >= 0; i--)
- free_irq(adapter->msix_entries[--vector].vector,
- adapter->q_vector[i]);
+ while (vector) {
+ vector--;
+ irq_set_affinity_hint(adapter->msix_entries[vector].vector,
+ NULL);
+ free_irq(adapter->msix_entries[vector].vector,
+ adapter->q_vector[vector]);
+ }
adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED;
pci_disable_msix(adapter->pdev);
kfree(adapter->msix_entries);
@@ -2333,14 +2327,19 @@ static void ixgbe_free_irq(struct ixgbe_adapter *adapter)
!adapter->q_vector[i]->tx.ring)
continue;
+ /* clear the affinity_mask in the IRQ descriptor */
+ irq_set_affinity_hint(adapter->msix_entries[i].vector,
+ NULL);
+
free_irq(adapter->msix_entries[i].vector,
adapter->q_vector[i]);
}
-
- ixgbe_reset_q_vectors(adapter);
} else {
free_irq(adapter->pdev->irq, adapter);
}
+
+ /* clear q_vector state information */
+ ixgbe_reset_q_vectors(adapter);
}
/**
@@ -3879,7 +3878,6 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
struct ixgbe_hw *hw = &adapter->hw;
u32 rxctrl;
int i;
- int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
/* signal that we are down to the interrupt handler */
set_bit(__IXGBE_DOWN, &adapter->state);
@@ -3924,15 +3922,6 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
adapter->vfinfo[i].clear_to_send = 0;
}
- /* Cleanup the affinity_hint CPU mask memory and callback */
- for (i = 0; i < num_q_vectors; i++) {
- struct ixgbe_q_vector *q_vector = adapter->q_vector[i];
- /* clear the affinity_mask in the IRQ descriptor */
- irq_set_affinity_hint(adapter->msix_entries[i]. vector, NULL);
- /* release the CPU mask memory */
- free_cpumask_var(q_vector->affinity_mask);
- }
-
/* disable transmits in the hardware now that interrupts are off */
for (i = 0; i < adapter->num_tx_queues; i++) {
u8 reg_idx = adapter->tx_ring[i]->reg_idx;
@@ -4677,6 +4666,11 @@ static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter)
q_vector->adapter = adapter;
q_vector->v_idx = v_idx;
+ /* Allocate the affinity_hint cpumask, configure the mask */
+ if (!alloc_cpumask_var(&q_vector->affinity_mask, GFP_KERNEL))
+ goto err_out;
+ cpumask_set_cpu(v_idx, q_vector->affinity_mask);
+
if (q_vector->tx.count && !q_vector->rx.count)
q_vector->eitr = adapter->tx_eitr_param;
else
@@ -4694,6 +4688,7 @@ err_out:
v_idx--;
q_vector = adapter->q_vector[v_idx];
netif_napi_del(&q_vector->napi);
+ free_cpumask_var(q_vector->affinity_mask);
kfree(q_vector);
adapter->q_vector[v_idx] = NULL;
}
@@ -4710,17 +4705,18 @@ err_out:
**/
static void ixgbe_free_q_vectors(struct ixgbe_adapter *adapter)
{
- int q_idx, num_q_vectors;
+ int v_idx, num_q_vectors;
if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
else
num_q_vectors = 1;
- for (q_idx = 0; q_idx < num_q_vectors; q_idx++) {
- struct ixgbe_q_vector *q_vector = adapter->q_vector[q_idx];
- adapter->q_vector[q_idx] = NULL;
+ for (v_idx = 0; v_idx < num_q_vectors; v_idx++) {
+ struct ixgbe_q_vector *q_vector = adapter->q_vector[v_idx];
+ adapter->q_vector[v_idx] = NULL;
netif_napi_del(&q_vector->napi);
+ free_cpumask_var(q_vector->affinity_mask);
kfree(q_vector);
}
}
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 04/11] ixgbe: Use ring->dev instead of adapter->pdev->dev when updating DCA
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (2 preceding siblings ...)
2011-09-16 4:42 ` [net-next 03/11] ixgbe: cleanup allocation and freeing of IRQ affinity hint Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 05/11] ixgbe: commonize ixgbe_map_rings_to_vectors to work for all interrupt types Jeff Kirsher
` (7 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
This change switches us over to using the ring->dev pointer instead of
having to use the adapter->pdev->dev reference. The advantage to this is
that it is a much shorter route to get the to final needed value.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 73a669d..0564c65 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -924,12 +924,12 @@ static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter,
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK;
- rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu);
+ rxctrl |= dca3_get_tag(rx_ring->dev, cpu);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK_82599;
- rxctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) <<
+ rxctrl |= (dca3_get_tag(rx_ring->dev, cpu) <<
IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599);
break;
default:
@@ -953,7 +953,7 @@ static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter,
case ixgbe_mac_82598EB:
txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(reg_idx));
txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK;
- txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu);
+ txctrl |= dca3_get_tag(tx_ring->dev, cpu);
txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN;
IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(reg_idx), txctrl);
break;
@@ -961,7 +961,7 @@ static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter,
case ixgbe_mac_X540:
txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx));
txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK_82599;
- txctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) <<
+ txctrl |= (dca3_get_tag(tx_ring->dev, cpu) <<
IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599);
txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN;
IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx), txctrl);
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 05/11] ixgbe: commonize ixgbe_map_rings_to_vectors to work for all interrupt types
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (3 preceding siblings ...)
2011-09-16 4:42 ` [net-next 04/11] ixgbe: Use ring->dev instead of adapter->pdev->dev when updating DCA Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 06/11] ixgbe: Drop unnecessary adapter->hw dereference in loopback test setup Jeff Kirsher
` (6 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
This patch makes it so that the map_rings_to_vectors call will work with
all interrupt types. The advantage to this is that there will now be a
predictable mapping for all given interrupt types.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 90 ++++++++++---------------
1 files changed, 35 insertions(+), 55 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 0564c65..dd1b57b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -2014,59 +2014,41 @@ static inline void map_vector_to_txq(struct ixgbe_adapter *a, int v_idx,
* group the rings as "efficiently" as possible. You would add new
* mapping configurations in here.
**/
-static int ixgbe_map_rings_to_vectors(struct ixgbe_adapter *adapter)
+static void ixgbe_map_rings_to_vectors(struct ixgbe_adapter *adapter)
{
- int q_vectors;
+ int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+ int rxr_remaining = adapter->num_rx_queues, rxr_idx = 0;
+ int txr_remaining = adapter->num_tx_queues, txr_idx = 0;
int v_start = 0;
- int rxr_idx = 0, txr_idx = 0;
- int rxr_remaining = adapter->num_rx_queues;
- int txr_remaining = adapter->num_tx_queues;
- int i, j;
- int rqpv, tqpv;
- int err = 0;
- /* No mapping required if MSI-X is disabled. */
+ /* only one q_vector if MSI-X is disabled. */
if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED))
- goto out;
-
- q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+ q_vectors = 1;
/*
- * The ideal configuration...
- * We have enough vectors to map one per queue.
+ * If we don't have enough vectors for a 1-to-1 mapping, we'll have to
+ * group them so there are multiple queues per vector.
+ *
+ * Re-adjusting *qpv takes care of the remainder.
*/
- if (q_vectors == adapter->num_rx_queues + adapter->num_tx_queues) {
- for (; rxr_idx < rxr_remaining; v_start++, rxr_idx++)
+ for (; v_start < q_vectors && rxr_remaining; v_start++) {
+ int rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - v_start);
+ for (; rqpv; rqpv--, rxr_idx++, rxr_remaining--)
map_vector_to_rxq(adapter, v_start, rxr_idx);
-
- for (; txr_idx < txr_remaining; v_start++, txr_idx++)
- map_vector_to_txq(adapter, v_start, txr_idx);
-
- goto out;
}
/*
- * If we don't have enough vectors for a 1-to-1
- * mapping, we'll have to group them so there are
- * multiple queues per vector.
+ * If there are not enough q_vectors for each ring to have it's own
+ * vector then we must pair up Rx/Tx on a each vector
*/
- /* Re-adjusting *qpv takes care of the remainder. */
- for (i = v_start; i < q_vectors; i++) {
- rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - i);
- for (j = 0; j < rqpv; j++) {
- map_vector_to_rxq(adapter, i, rxr_idx);
- rxr_idx++;
- rxr_remaining--;
- }
- tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - i);
- for (j = 0; j < tqpv; j++) {
- map_vector_to_txq(adapter, i, txr_idx);
- txr_idx++;
- txr_remaining--;
- }
+ if ((v_start + txr_remaining) > q_vectors)
+ v_start = 0;
+
+ for (; v_start < q_vectors && txr_remaining; v_start++) {
+ int tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - v_start);
+ for (; tqpv; tqpv--, txr_idx++, txr_remaining--)
+ map_vector_to_txq(adapter, v_start, txr_idx);
}
-out:
- return err;
}
/**
@@ -2083,10 +2065,6 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
int vector, err;
int ri = 0, ti = 0;
- err = ixgbe_map_rings_to_vectors(adapter);
- if (err)
- return err;
-
for (vector = 0; vector < q_vectors; vector++) {
struct ixgbe_q_vector *q_vector = adapter->q_vector[vector];
struct msix_entry *entry = &adapter->msix_entries[vector];
@@ -2294,19 +2272,25 @@ static int ixgbe_request_irq(struct ixgbe_adapter *adapter)
struct net_device *netdev = adapter->netdev;
int err;
- if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+ /* map all of the rings to the q_vectors */
+ ixgbe_map_rings_to_vectors(adapter);
+
+ if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
err = ixgbe_request_msix_irqs(adapter);
- } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) {
+ else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED)
err = request_irq(adapter->pdev->irq, ixgbe_intr, 0,
netdev->name, adapter);
- } else {
+ else
err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED,
netdev->name, adapter);
- }
- if (err)
+ if (err) {
e_err(probe, "request_irq failed, Error %d\n", err);
+ /* place q_vectors and rings back into a known good state */
+ ixgbe_reset_q_vectors(adapter);
+ }
+
return err;
}
@@ -2316,11 +2300,10 @@ static void ixgbe_free_irq(struct ixgbe_adapter *adapter)
int i, q_vectors;
q_vectors = adapter->num_msix_vectors;
-
i = q_vectors - 1;
free_irq(adapter->msix_entries[i].vector, adapter);
-
i--;
+
for (; i >= 0; i--) {
/* free only the irqs that were actually requested */
if (!adapter->q_vector[i]->rx.ring &&
@@ -2387,9 +2370,6 @@ static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter)
ixgbe_set_ivar(adapter, 0, 0, 0);
ixgbe_set_ivar(adapter, 1, 0, 0);
- map_vector_to_rxq(adapter, 0, 0);
- map_vector_to_txq(adapter, 0, 0);
-
e_info(hw, "Legacy interrupt IVAR setup done\n");
}
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 06/11] ixgbe: Drop unnecessary adapter->hw dereference in loopback test setup
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (4 preceding siblings ...)
2011-09-16 4:42 ` [net-next 05/11] ixgbe: commonize ixgbe_map_rings_to_vectors to work for all interrupt types Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 07/11] ixgbe: combine PCI_VDEVICE and board declaration to same line Jeff Kirsher
` (5 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
This patch drops a set of unnecessary dereferences to the hardware structure
since we already have a local copy of the hardware pointer.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 9c12b35..11e1d5c 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -1570,26 +1570,26 @@ static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter)
/* X540 needs to set the MACC.FLU bit to force link up */
if (adapter->hw.mac.type == ixgbe_mac_X540) {
- reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_MACC);
+ reg_data = IXGBE_READ_REG(hw, IXGBE_MACC);
reg_data |= IXGBE_MACC_FLU;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_MACC, reg_data);
+ IXGBE_WRITE_REG(hw, IXGBE_MACC, reg_data);
}
/* right now we only support MAC loopback in the driver */
- reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_HLREG0);
+ reg_data = IXGBE_READ_REG(hw, IXGBE_HLREG0);
/* Setup MAC loopback */
reg_data |= IXGBE_HLREG0_LPBK;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_HLREG0, reg_data);
+ IXGBE_WRITE_REG(hw, IXGBE_HLREG0, reg_data);
- reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_FCTRL);
+ reg_data = IXGBE_READ_REG(hw, IXGBE_FCTRL);
reg_data |= IXGBE_FCTRL_BAM | IXGBE_FCTRL_SBP | IXGBE_FCTRL_MPE;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, reg_data);
+ IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg_data);
- reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_AUTOC);
+ reg_data = IXGBE_READ_REG(hw, IXGBE_AUTOC);
reg_data &= ~IXGBE_AUTOC_LMS_MASK;
reg_data |= IXGBE_AUTOC_LMS_10G_LINK_NO_AN | IXGBE_AUTOC_FLU;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_AUTOC, reg_data);
- IXGBE_WRITE_FLUSH(&adapter->hw);
+ IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_data);
+ IXGBE_WRITE_FLUSH(hw);
usleep_range(10000, 20000);
/* Disable Atlas Tx lanes; re-enabled in reset path */
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 07/11] ixgbe: combine PCI_VDEVICE and board declaration to same line
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (5 preceding siblings ...)
2011-09-16 4:42 ` [net-next 06/11] ixgbe: Drop unnecessary adapter->hw dereference in loopback test setup Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 08/11] ixgbe: Update TXDCTL configuration to correctly handle WTHRESH Jeff Kirsher
` (4 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
This patch is a minor whitespace cleanup to compress the device ID
declaration and board type declaration onto the same line. It seems to
make sense since all of the combinations of the two are less than 80
characters and it makes the overall layout a bit more readable.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 79 ++++++++-----------------
1 files changed, 26 insertions(+), 53 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index dd1b57b..fee5630 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -79,59 +79,32 @@ static const struct ixgbe_info *ixgbe_info_tbl[] = {
* Class, Class Mask, private data (not used) }
*/
static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = {
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX),
- board_82598 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T),
- board_X540 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2),
- board_82599 },
- {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS),
- board_82599 },
-
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), board_82598 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T), board_X540 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2), board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS), board_82599 },
/* required last entry */
{0, }
};
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 08/11] ixgbe: Update TXDCTL configuration to correctly handle WTHRESH
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (6 preceding siblings ...)
2011-09-16 4:42 ` [net-next 07/11] ixgbe: combine PCI_VDEVICE and board declaration to same line Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 09/11] ixgbe: cleanup reset paths Jeff Kirsher
` (3 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
This change updated the TXDCTL configuration. The main goal is to be much
more explicit about the configuration and avoid a possible fake TX hang
when the interrupt throttle rate is set to 0.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 35 +++++++++++++------------
1 files changed, 18 insertions(+), 17 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index fee5630..6378d7f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -2359,13 +2359,11 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter,
struct ixgbe_hw *hw = &adapter->hw;
u64 tdba = ring->dma;
int wait_loop = 10;
- u32 txdctl;
+ u32 txdctl = IXGBE_TXDCTL_ENABLE;
u8 reg_idx = ring->reg_idx;
/* disable queue to avoid issues while updating state */
- txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx));
- IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx),
- txdctl & ~IXGBE_TXDCTL_ENABLE);
+ IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), 0);
IXGBE_WRITE_FLUSH(hw);
IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx),
@@ -2377,18 +2375,22 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter,
IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0);
ring->tail = hw->hw_addr + IXGBE_TDT(reg_idx);
- /* configure fetching thresholds */
- if (adapter->rx_itr_setting == 0) {
- /* cannot set wthresh when itr==0 */
- txdctl &= ~0x007F0000;
- } else {
- /* enable WTHRESH=8 descriptors, to encourage burst writeback */
- txdctl |= (8 << 16);
- }
- if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
- /* PThresh workaround for Tx hang with DFP enabled. */
- txdctl |= 32;
- }
+ /*
+ * set WTHRESH to encourage burst writeback, it should not be set
+ * higher than 1 when ITR is 0 as it could cause false TX hangs
+ *
+ * In order to avoid issues WTHRESH + PTHRESH should always be equal
+ * to or less than the number of on chip descriptors, which is
+ * currently 40.
+ */
+ if (!adapter->tx_itr_setting || !adapter->rx_itr_setting)
+ txdctl |= (1 << 16); /* WTHRESH = 1 */
+ else
+ txdctl |= (8 << 16); /* WTHRESH = 8 */
+
+ /* PTHRESH=32 is needed to avoid a Tx hang with DFP enabled. */
+ txdctl |= (1 << 8) | /* HTHRESH = 1 */
+ 32; /* PTHRESH = 32 */
/* reinitialize flowdirector state */
if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) &&
@@ -2403,7 +2405,6 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter,
clear_bit(__IXGBE_HANG_CHECK_ARMED, &ring->state);
/* enable queue */
- txdctl |= IXGBE_TXDCTL_ENABLE;
IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl);
/* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 09/11] ixgbe: cleanup reset paths
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (7 preceding siblings ...)
2011-09-16 4:42 ` [net-next 08/11] ixgbe: Update TXDCTL configuration to correctly handle WTHRESH Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 10/11] ixgbe: cleanup configuration of EITRSEL and VF reset path Jeff Kirsher
` (2 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
The reset paths are overly complicated and are either missing steps or
contain extra unnecessary steps such as reading MAC address twice. This
change is meant to help clean up the reset paths an get things functioning
correctly.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c | 13 ++---
drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c | 40 ++++++++------
drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 1 +
drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c | 72 +++++-------------------
4 files changed, 43 insertions(+), 83 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
index 0d4e382..22504f2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
@@ -820,8 +820,8 @@ mac_reset_top:
* Issue global reset to the MAC. This needs to be a SW reset.
* If link reset is used, it might reset the MAC when mng is using it
*/
- ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
+ ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
+ IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
IXGBE_WRITE_FLUSH(hw);
/* Poll for reset bit to self-clear indicating reset is complete */
@@ -836,21 +836,18 @@ mac_reset_top:
hw_dbg(hw, "Reset polling failed to complete.\n");
}
+ msleep(50);
+
/*
* Double resets are required for recovery from certain error
* conditions. Between resets, it is necessary to stall to allow time
- * for any pending HW events to complete. We use 1usec since that is
- * what is needed for ixgbe_disable_pcie_master(). The second reset
- * then clears out any effects of those events.
+ * for any pending HW events to complete.
*/
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
- udelay(1);
goto mac_reset_top;
}
- msleep(50);
-
gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index f193fc2..a5ff435 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -904,11 +904,10 @@ static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
**/
static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
{
- s32 status = 0;
- u32 ctrl;
- u32 i;
- u32 autoc;
- u32 autoc2;
+ ixgbe_link_speed link_speed;
+ s32 status;
+ u32 ctrl, i, autoc, autoc2;
+ bool link_up = false;
/* Call adapter stop to disable tx/rx and clear interrupts */
hw->mac.ops.stop_adapter(hw);
@@ -942,40 +941,47 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
mac_reset_top:
/*
- * Issue global reset to the MAC. This needs to be a SW reset.
- * If link reset is used, it might reset the MAC when mng is using it
+ * Issue global reset to the MAC. Needs to be SW reset if link is up.
+ * If link reset is used when link is up, it might reset the PHY when
+ * mng is using it. If link is down or the flag to force full link
+ * reset is set, then perform link reset.
*/
- ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
+ ctrl = IXGBE_CTRL_LNK_RST;
+ if (!hw->force_full_reset) {
+ hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
+ if (link_up)
+ ctrl = IXGBE_CTRL_RST;
+ }
+
+ ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
+ IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
IXGBE_WRITE_FLUSH(hw);
/* Poll for reset bit to self-clear indicating reset is complete */
for (i = 0; i < 10; i++) {
udelay(1);
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- if (!(ctrl & IXGBE_CTRL_RST))
+ if (!(ctrl & IXGBE_CTRL_RST_MASK))
break;
}
- if (ctrl & IXGBE_CTRL_RST) {
+
+ if (ctrl & IXGBE_CTRL_RST_MASK) {
status = IXGBE_ERR_RESET_FAILED;
hw_dbg(hw, "Reset polling failed to complete.\n");
}
+ msleep(50);
+
/*
* Double resets are required for recovery from certain error
* conditions. Between resets, it is necessary to stall to allow time
- * for any pending HW events to complete. We use 1usec since that is
- * what is needed for ixgbe_disable_pcie_master(). The second reset
- * then clears out any effects of those events.
+ * for any pending HW events to complete.
*/
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
- udelay(1);
goto mac_reset_top;
}
- msleep(50);
-
/*
* Store the original AUTOC/AUTOC2 values if they have not been
* stored off yet. Otherwise restore the stored original
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 9f618ee..a9f8839 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -982,6 +982,7 @@
#define IXGBE_CTRL_GIO_DIS 0x00000004 /* Global IO Master Disable bit */
#define IXGBE_CTRL_LNK_RST 0x00000008 /* Link Reset. Resets everything. */
#define IXGBE_CTRL_RST 0x04000000 /* Reset (SW) */
+#define IXGBE_CTRL_RST_MASK (IXGBE_CTRL_LNK_RST | IXGBE_CTRL_RST)
/* FACTPS */
#define IXGBE_FACTPS_LFS 0x40000000 /* LAN Function Select */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
index 2696c78..bbfe8c4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
@@ -94,13 +94,8 @@ static s32 ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw,
static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
{
ixgbe_link_speed link_speed;
- s32 status = 0;
- u32 ctrl;
- u32 ctrl_ext;
- u32 reset_bit;
- u32 i;
- u32 autoc;
- u32 autoc2;
+ s32 status;
+ u32 ctrl, i;
bool link_up = false;
/* Call adapter stop to disable tx/rx and clear interrupts */
@@ -119,53 +114,42 @@ mac_reset_top:
* mng is using it. If link is down or the flag to force full link
* reset is set, then perform link reset.
*/
- if (hw->force_full_reset) {
- reset_bit = IXGBE_CTRL_LNK_RST;
- } else {
+ ctrl = IXGBE_CTRL_LNK_RST;
+ if (!hw->force_full_reset) {
hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
- if (!link_up)
- reset_bit = IXGBE_CTRL_LNK_RST;
- else
- reset_bit = IXGBE_CTRL_RST;
+ if (link_up)
+ ctrl = IXGBE_CTRL_RST;
}
- ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | reset_bit));
+ ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
+ IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
IXGBE_WRITE_FLUSH(hw);
/* Poll for reset bit to self-clear indicating reset is complete */
for (i = 0; i < 10; i++) {
udelay(1);
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
- if (!(ctrl & reset_bit))
+ if (!(ctrl & IXGBE_CTRL_RST_MASK))
break;
}
- if (ctrl & reset_bit) {
+
+ if (ctrl & IXGBE_CTRL_RST_MASK) {
status = IXGBE_ERR_RESET_FAILED;
hw_dbg(hw, "Reset polling failed to complete.\n");
}
+ msleep(50);
+
/*
* Double resets are required for recovery from certain error
* conditions. Between resets, it is necessary to stall to allow time
- * for any pending HW events to complete. We use 1usec since that is
- * what is needed for ixgbe_disable_pcie_master(). The second reset
- * then clears out any effects of those events.
+ * for any pending HW events to complete.
*/
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
- udelay(1);
goto mac_reset_top;
}
- /* Clear PF Reset Done bit so PF/VF Mail Ops can work */
- ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
- ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD;
- IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
- IXGBE_WRITE_FLUSH(hw);
-
- msleep(50);
-
/* Set the Rx packet buffer size. */
IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), 384 << IXGBE_RXPBSIZE_SHIFT);
@@ -173,31 +157,6 @@ mac_reset_top:
hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
/*
- * Store the original AUTOC/AUTOC2 values if they have not been
- * stored off yet. Otherwise restore the stored original
- * values since the reset operation sets back to defaults.
- */
- autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
- autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
- if (hw->mac.orig_link_settings_stored == false) {
- hw->mac.orig_autoc = autoc;
- hw->mac.orig_autoc2 = autoc2;
- hw->mac.orig_link_settings_stored = true;
- } else {
- if (autoc != hw->mac.orig_autoc)
- IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (hw->mac.orig_autoc |
- IXGBE_AUTOC_AN_RESTART));
-
- if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
- (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
- autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
- autoc2 |= (hw->mac.orig_autoc2 &
- IXGBE_AUTOC2_UPPER_MASK);
- IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
- }
- }
-
- /*
* Store MAC address from RAR0, clear receive address registers, and
* clear the multicast table. Also reset num_rar_entries to 128,
* since we modify this value when programming the SAN MAC address.
@@ -205,9 +164,6 @@ mac_reset_top:
hw->mac.num_rar_entries = IXGBE_X540_MAX_TX_QUEUES;
hw->mac.ops.init_rx_addrs(hw);
- /* Store the permanent mac address */
- hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
-
/* Store the permanent SAN mac address */
hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 10/11] ixgbe: cleanup configuration of EITRSEL and VF reset path
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (8 preceding siblings ...)
2011-09-16 4:42 ` [net-next 09/11] ixgbe: cleanup reset paths Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 4:42 ` [net-next 11/11] ixgbe: Correctly name and handle MSI-X other interrupt Jeff Kirsher
2011-09-16 19:20 ` [net-next 00/11][pull request] Intel Wired LAN Driver Updates David Miller
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
This change is meant to cleanup some of the code related to SR-IOV and the
interrupt registers. Specifically I am moving the EITRSEL configuration
into the MSI-X configuration section instead of enablement. Also I am
fixing the VF shutdown path since it had operations in the incorrect order.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 25 +++++++++++++------------
1 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 6378d7f..0ee7d09 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1516,6 +1516,12 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter)
q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+ /* Populate MSIX to EITR Select */
+ if (adapter->num_vfs > 32) {
+ u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1;
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel);
+ }
+
/*
* Populate the IVAR table and set the ITR values to the
* corresponding register.
@@ -2130,11 +2136,6 @@ static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues,
ixgbe_irq_enable_queues(adapter, ~0);
if (flush)
IXGBE_WRITE_FLUSH(&adapter->hw);
-
- if (adapter->num_vfs > 32) {
- u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel);
- }
}
/**
@@ -2313,8 +2314,6 @@ static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000);
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0);
IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0);
- if (adapter->num_vfs > 32)
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0);
break;
default:
break;
@@ -3863,17 +3862,19 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
del_timer_sync(&adapter->service_timer);
- /* disable receive for all VFs and wait one second */
if (adapter->num_vfs) {
+ /* Clear EITR Select mapping */
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0);
+
+ /* Mark all the VFs as inactive */
+ for (i = 0 ; i < adapter->num_vfs; i++)
+ adapter->vfinfo[i].clear_to_send = 0;
+
/* ping all the active vfs to let them know we are going down */
ixgbe_ping_all_vfs(adapter);
/* Disable all VFTE/VFRE TX/RX */
ixgbe_disable_tx_rx(adapter);
-
- /* Mark all the VFs as inactive */
- for (i = 0 ; i < adapter->num_vfs; i++)
- adapter->vfinfo[i].clear_to_send = 0;
}
/* disable transmits in the hardware now that interrupts are off */
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 11/11] ixgbe: Correctly name and handle MSI-X other interrupt
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (9 preceding siblings ...)
2011-09-16 4:42 ` [net-next 10/11] ixgbe: cleanup configuration of EITRSEL and VF reset path Jeff Kirsher
@ 2011-09-16 4:42 ` Jeff Kirsher
2011-09-16 19:20 ` [net-next 00/11][pull request] Intel Wired LAN Driver Updates David Miller
11 siblings, 0 replies; 13+ messages in thread
From: Jeff Kirsher @ 2011-09-16 4:42 UTC (permalink / raw)
To: davem; +Cc: Alexander Duyck, netdev, gospo, Jeff Kirsher
From: Alexander Duyck <alexander.h.duyck@intel.com>
It was possible to inadvertently add additional interrupt causes to the
MSI-X other interrupt. This occurred when things such as RX buffer overrun
events were being triggered at the same time as an event such as a Flow
Director table reinit request. In order to avoid this we should be
explicitly programming only the interrupts that we want enabled. In
addition I am renaming the ixgbe_msix_lsc function and interrupt to drop
any implied meaning of this being a link status only interrupt.
Unfortunately the patch is a bit ugly due to the fact that ixgbe_irq_enable
needed to be moved up before ixgbe_msix_other in order to have things
defined in the correct order.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 -
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 191 +++++++++++++------------
2 files changed, 97 insertions(+), 95 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 3f5a744..bfdd42b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -491,7 +491,6 @@ struct ixgbe_adapter {
int node;
u32 led_reg;
u32 interrupt_event;
- char lsc_int_name[IFNAMSIZ + 9];
/* SR-IOV */
DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 0ee7d09..6026ab0 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1828,7 +1828,98 @@ static void ixgbe_check_lsc(struct ixgbe_adapter *adapter)
}
}
-static irqreturn_t ixgbe_msix_lsc(int irq, void *data)
+static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter,
+ u64 qmask)
+{
+ u32 mask;
+ struct ixgbe_hw *hw = &adapter->hw;
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_82598EB:
+ mask = (IXGBE_EIMS_RTX_QUEUE & qmask);
+ IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask);
+ break;
+ case ixgbe_mac_82599EB:
+ case ixgbe_mac_X540:
+ mask = (qmask & 0xFFFFFFFF);
+ if (mask)
+ IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask);
+ mask = (qmask >> 32);
+ if (mask)
+ IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask);
+ break;
+ default:
+ break;
+ }
+ /* skip the flush */
+}
+
+static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter,
+ u64 qmask)
+{
+ u32 mask;
+ struct ixgbe_hw *hw = &adapter->hw;
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_82598EB:
+ mask = (IXGBE_EIMS_RTX_QUEUE & qmask);
+ IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask);
+ break;
+ case ixgbe_mac_82599EB:
+ case ixgbe_mac_X540:
+ mask = (qmask & 0xFFFFFFFF);
+ if (mask)
+ IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask);
+ mask = (qmask >> 32);
+ if (mask)
+ IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask);
+ break;
+ default:
+ break;
+ }
+ /* skip the flush */
+}
+
+/**
+ * ixgbe_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ **/
+static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues,
+ bool flush)
+{
+ u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE);
+
+ /* don't reenable LSC while waiting for link */
+ if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)
+ mask &= ~IXGBE_EIMS_LSC;
+
+ if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)
+ mask |= IXGBE_EIMS_GPI_SDP0;
+ if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE)
+ mask |= IXGBE_EIMS_GPI_SDP1;
+ switch (adapter->hw.mac.type) {
+ case ixgbe_mac_82599EB:
+ case ixgbe_mac_X540:
+ mask |= IXGBE_EIMS_ECC;
+ mask |= IXGBE_EIMS_GPI_SDP1;
+ mask |= IXGBE_EIMS_GPI_SDP2;
+ mask |= IXGBE_EIMS_MAILBOX;
+ break;
+ default:
+ break;
+ }
+ if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) &&
+ !(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT))
+ mask |= IXGBE_EIMS_FLOW_DIR;
+
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
+ if (queues)
+ ixgbe_irq_enable_queues(adapter, ~0);
+ if (flush)
+ IXGBE_WRITE_FLUSH(&adapter->hw);
+}
+
+static irqreturn_t ixgbe_msix_other(int irq, void *data)
{
struct ixgbe_adapter *adapter = data;
struct ixgbe_hw *hw = &adapter->hw;
@@ -1852,6 +1943,9 @@ static irqreturn_t ixgbe_msix_lsc(int irq, void *data)
switch (hw->mac.type) {
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
+ if (eicr & IXGBE_EICR_ECC)
+ e_info(link, "Received unrecoverable ECC Err, please "
+ "reboot\n");
/* Handle Flow Director Full threshold interrupt */
if (eicr & IXGBE_EICR_FLOW_DIR) {
int reinit_count = 0;
@@ -1865,7 +1959,6 @@ static irqreturn_t ixgbe_msix_lsc(int irq, void *data)
if (reinit_count) {
/* no more flow director interrupts until after init */
IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR);
- eicr &= ~IXGBE_EICR_FLOW_DIR;
adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT;
ixgbe_service_event_schedule(adapter);
}
@@ -1888,64 +1981,11 @@ static irqreturn_t ixgbe_msix_lsc(int irq, void *data)
/* re-enable the original interrupt state, no lsc, no queues */
if (!test_bit(__IXGBE_DOWN, &adapter->state))
- IXGBE_WRITE_REG(hw, IXGBE_EIMS, eicr &
- ~(IXGBE_EIMS_LSC | IXGBE_EIMS_RTX_QUEUE));
+ ixgbe_irq_enable(adapter, false, false);
return IRQ_HANDLED;
}
-static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter,
- u64 qmask)
-{
- u32 mask;
- struct ixgbe_hw *hw = &adapter->hw;
-
- switch (hw->mac.type) {
- case ixgbe_mac_82598EB:
- mask = (IXGBE_EIMS_RTX_QUEUE & qmask);
- IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask);
- break;
- case ixgbe_mac_82599EB:
- case ixgbe_mac_X540:
- mask = (qmask & 0xFFFFFFFF);
- if (mask)
- IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask);
- mask = (qmask >> 32);
- if (mask)
- IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask);
- break;
- default:
- break;
- }
- /* skip the flush */
-}
-
-static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter,
- u64 qmask)
-{
- u32 mask;
- struct ixgbe_hw *hw = &adapter->hw;
-
- switch (hw->mac.type) {
- case ixgbe_mac_82598EB:
- mask = (IXGBE_EIMS_RTX_QUEUE & qmask);
- IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask);
- break;
- case ixgbe_mac_82599EB:
- case ixgbe_mac_X540:
- mask = (qmask & 0xFFFFFFFF);
- if (mask)
- IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask);
- mask = (qmask >> 32);
- if (mask)
- IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask);
- break;
- default:
- break;
- }
- /* skip the flush */
-}
-
static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data)
{
struct ixgbe_q_vector *q_vector = data;
@@ -2077,9 +2117,8 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
}
}
- sprintf(adapter->lsc_int_name, "%s:lsc", netdev->name);
err = request_irq(adapter->msix_entries[vector].vector,
- ixgbe_msix_lsc, 0, adapter->lsc_int_name, adapter);
+ ixgbe_msix_other, 0, netdev->name, adapter);
if (err) {
e_err(probe, "request_irq for msix_lsc failed: %d\n", err);
goto free_queue_irqs;
@@ -2103,42 +2142,6 @@ free_queue_irqs:
}
/**
- * ixgbe_irq_enable - Enable default interrupt generation settings
- * @adapter: board private structure
- **/
-static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues,
- bool flush)
-{
- u32 mask;
-
- mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE);
- if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)
- mask |= IXGBE_EIMS_GPI_SDP0;
- if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE)
- mask |= IXGBE_EIMS_GPI_SDP1;
- switch (adapter->hw.mac.type) {
- case ixgbe_mac_82599EB:
- case ixgbe_mac_X540:
- mask |= IXGBE_EIMS_ECC;
- mask |= IXGBE_EIMS_GPI_SDP1;
- mask |= IXGBE_EIMS_GPI_SDP2;
- if (adapter->num_vfs)
- mask |= IXGBE_EIMS_MAILBOX;
- break;
- default:
- break;
- }
- if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)
- mask |= IXGBE_EIMS_FLOW_DIR;
-
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
- if (queues)
- ixgbe_irq_enable_queues(adapter, ~0);
- if (flush)
- IXGBE_WRITE_FLUSH(&adapter->hw);
-}
-
-/**
* ixgbe_intr - legacy mode Interrupt Handler
* @irq: interrupt number
* @data: pointer to a network interface device structure
--
1.7.6
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [net-next 00/11][pull request] Intel Wired LAN Driver Updates
2011-09-16 4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
` (10 preceding siblings ...)
2011-09-16 4:42 ` [net-next 11/11] ixgbe: Correctly name and handle MSI-X other interrupt Jeff Kirsher
@ 2011-09-16 19:20 ` David Miller
11 siblings, 0 replies; 13+ messages in thread
From: David Miller @ 2011-09-16 19:20 UTC (permalink / raw)
To: jeffrey.t.kirsher; +Cc: netdev, gospo
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Thu, 15 Sep 2011 21:42:42 -0700
> The following series contains updates to ixgbe only. These are primarily
> cleanups of the ixgbe driver. The first two patches of the series:
>
> ixgbe: Change default Tx work limit size to 256 buffers
> ixgbe: consolidate all MSI-X ring interrupts and poll routines into one
>
> are re-worked based on previous community feedback (Dave and Ben).
>
> The following are changes since commit 4bc71cb983fd2844e603bf633df2bb53385182d2:
> net: consolidate and fix ethtool_ops->get_settings calling
> and are available in the git repository at:
> git://github.com/Jkirsher/net-next.git
Pulled, thanks Jeff.
^ permalink raw reply [flat|nested] 13+ messages in thread