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authorDavid S. Miller <davem@davemloft.net>2016-02-23 00:09:14 -0500
committerDavid S. Miller <davem@davemloft.net>2016-02-23 00:09:14 -0500
commitb633353115e352d3c31c12d4c61978c810f05ea1 (patch)
tree055174a1b31a3e10fd2c505788fe6487b0028d00 /drivers/net/can
parentb1d95ae5c5bd3deba84d00c4f83d7d0836b5936f (diff)
parentdea08e604408d0303e2332896c5fdd8c1f7d79a2 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/phy/bcm7xxx.c drivers/net/phy/marvell.c drivers/net/vxlan.c All three conflicts were cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can')
-rw-r--r--drivers/net/can/usb/ems_usb.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index fc5b75675cd8..eb7192fab593 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -117,6 +117,9 @@ MODULE_LICENSE("GPL v2");
117 */ 117 */
118#define EMS_USB_ARM7_CLOCK 8000000 118#define EMS_USB_ARM7_CLOCK 8000000
119 119
120#define CPC_TX_QUEUE_TRIGGER_LOW 25
121#define CPC_TX_QUEUE_TRIGGER_HIGH 35
122
120/* 123/*
121 * CAN-Message representation in a CPC_MSG. Message object type is 124 * CAN-Message representation in a CPC_MSG. Message object type is
122 * CPC_MSG_TYPE_CAN_FRAME or CPC_MSG_TYPE_RTR_FRAME or 125 * CPC_MSG_TYPE_CAN_FRAME or CPC_MSG_TYPE_RTR_FRAME or
@@ -278,6 +281,11 @@ static void ems_usb_read_interrupt_callback(struct urb *urb)
278 switch (urb->status) { 281 switch (urb->status) {
279 case 0: 282 case 0:
280 dev->free_slots = dev->intr_in_buffer[1]; 283 dev->free_slots = dev->intr_in_buffer[1];
284 if(dev->free_slots > CPC_TX_QUEUE_TRIGGER_HIGH){
285 if (netif_queue_stopped(netdev)){
286 netif_wake_queue(netdev);
287 }
288 }
281 break; 289 break;
282 290
283 case -ECONNRESET: /* unlink */ 291 case -ECONNRESET: /* unlink */
@@ -526,8 +534,6 @@ static void ems_usb_write_bulk_callback(struct urb *urb)
526 /* Release context */ 534 /* Release context */
527 context->echo_index = MAX_TX_URBS; 535 context->echo_index = MAX_TX_URBS;
528 536
529 if (netif_queue_stopped(netdev))
530 netif_wake_queue(netdev);
531} 537}
532 538
533/* 539/*
@@ -587,7 +593,7 @@ static int ems_usb_start(struct ems_usb *dev)
587 int err, i; 593 int err, i;
588 594
589 dev->intr_in_buffer[0] = 0; 595 dev->intr_in_buffer[0] = 0;
590 dev->free_slots = 15; /* initial size */ 596 dev->free_slots = 50; /* initial size */
591 597
592 for (i = 0; i < MAX_RX_URBS; i++) { 598 for (i = 0; i < MAX_RX_URBS; i++) {
593 struct urb *urb = NULL; 599 struct urb *urb = NULL;
@@ -835,7 +841,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
835 841
836 /* Slow down tx path */ 842 /* Slow down tx path */
837 if (atomic_read(&dev->active_tx_urbs) >= MAX_TX_URBS || 843 if (atomic_read(&dev->active_tx_urbs) >= MAX_TX_URBS ||
838 dev->free_slots < 5) { 844 dev->free_slots < CPC_TX_QUEUE_TRIGGER_LOW) {
839 netif_stop_queue(netdev); 845 netif_stop_queue(netdev);
840 } 846 }
841 } 847 }