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path: root/drivers/infiniband/ulp/ipoib/ipoib_ib.c
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Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_ib.c')
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_ib.c43
1 files changed, 18 insertions, 25 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 10944888cffd..481e4b6bd949 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -281,63 +281,58 @@ static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
281 wc->status, wr_id, wc->vendor_err); 281 wc->status, wr_id, wc->vendor_err);
282} 282}
283 283
284int ipoib_poll(struct net_device *dev, int *budget) 284int ipoib_poll(struct napi_struct *napi, int budget)
285{ 285{
286 struct ipoib_dev_priv *priv = netdev_priv(dev); 286 struct ipoib_dev_priv *priv = container_of(napi, struct ipoib_dev_priv, napi);
287 int max = min(*budget, dev->quota); 287 struct net_device *dev = priv->dev;
288 int done; 288 int done;
289 int t; 289 int t;
290 int empty;
291 int n, i; 290 int n, i;
292 291
293 done = 0; 292 done = 0;
294 empty = 0;
295 293
296 while (max) { 294poll_more:
295 while (done < budget) {
296 int max = (budget - done);
297
297 t = min(IPOIB_NUM_WC, max); 298 t = min(IPOIB_NUM_WC, max);
298 n = ib_poll_cq(priv->cq, t, priv->ibwc); 299 n = ib_poll_cq(priv->cq, t, priv->ibwc);
299 300
300 for (i = 0; i < n; ++i) { 301 for (i = 0; i < n; i++) {
301 struct ib_wc *wc = priv->ibwc + i; 302 struct ib_wc *wc = priv->ibwc + i;
302 303
303 if (wc->wr_id & IPOIB_CM_OP_SRQ) { 304 if (wc->wr_id & IPOIB_CM_OP_SRQ) {
304 ++done; 305 ++done;
305 --max;
306 ipoib_cm_handle_rx_wc(dev, wc); 306 ipoib_cm_handle_rx_wc(dev, wc);
307 } else if (wc->wr_id & IPOIB_OP_RECV) { 307 } else if (wc->wr_id & IPOIB_OP_RECV) {
308 ++done; 308 ++done;
309 --max;
310 ipoib_ib_handle_rx_wc(dev, wc); 309 ipoib_ib_handle_rx_wc(dev, wc);
311 } else 310 } else
312 ipoib_ib_handle_tx_wc(dev, wc); 311 ipoib_ib_handle_tx_wc(dev, wc);
313 } 312 }
314 313
315 if (n != t) { 314 if (n != t)
316 empty = 1;
317 break; 315 break;
318 }
319 } 316 }
320 317
321 dev->quota -= done; 318 if (done < budget) {
322 *budget -= done; 319 netif_rx_complete(dev, napi);
323
324 if (empty) {
325 netif_rx_complete(dev);
326 if (unlikely(ib_req_notify_cq(priv->cq, 320 if (unlikely(ib_req_notify_cq(priv->cq,
327 IB_CQ_NEXT_COMP | 321 IB_CQ_NEXT_COMP |
328 IB_CQ_REPORT_MISSED_EVENTS)) && 322 IB_CQ_REPORT_MISSED_EVENTS)) &&
329 netif_rx_reschedule(dev, 0)) 323 netif_rx_reschedule(dev, napi))
330 return 1; 324 goto poll_more;
331
332 return 0;
333 } 325 }
334 326
335 return 1; 327 return done;
336} 328}
337 329
338void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr) 330void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr)
339{ 331{
340 netif_rx_schedule(dev_ptr); 332 struct net_device *dev = dev_ptr;
333 struct ipoib_dev_priv *priv = netdev_priv(dev);
334
335 netif_rx_schedule(dev, &priv->napi);
341} 336}
342 337
343static inline int post_send(struct ipoib_dev_priv *priv, 338static inline int post_send(struct ipoib_dev_priv *priv,
@@ -577,7 +572,6 @@ int ipoib_ib_dev_stop(struct net_device *dev, int flush)
577 int i; 572 int i;
578 573
579 clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags); 574 clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
580 netif_poll_disable(dev);
581 575
582 ipoib_cm_dev_stop(dev); 576 ipoib_cm_dev_stop(dev);
583 577
@@ -660,7 +654,6 @@ timeout:
660 msleep(1); 654 msleep(1);
661 } 655 }
662 656
663 netif_poll_enable(dev);
664 ib_req_notify_cq(priv->cq, IB_CQ_NEXT_COMP); 657 ib_req_notify_cq(priv->cq, IB_CQ_NEXT_COMP);
665 658
666 return 0; 659 return 0;