ixl_txrx.c (d60840138f6292c1ceeb177ebe797eca0b2749da) ixl_txrx.c (ac83ea833d494a651c3fa807c90675b724a78c19)
1/******************************************************************************
2
3 Copyright (c) 2013-2015, Intel Corporation
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8

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281 * Map the packet for DMA.
282 */
283 error = bus_dmamap_load_mbuf_sg(tag, map,
284 *m_headp, segs, &nsegs, BUS_DMA_NOWAIT);
285
286 if (error == EFBIG) {
287 struct mbuf *m;
288
1/******************************************************************************
2
3 Copyright (c) 2013-2015, Intel Corporation
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8

--- 272 unchanged lines hidden (view full) ---

281 * Map the packet for DMA.
282 */
283 error = bus_dmamap_load_mbuf_sg(tag, map,
284 *m_headp, segs, &nsegs, BUS_DMA_NOWAIT);
285
286 if (error == EFBIG) {
287 struct mbuf *m;
288
289 m = m_defrag(*m_headp, M_NOWAIT);
289 m = m_collapse(*m_headp, M_NOWAIT, maxsegs);
290 if (m == NULL) {
291 que->mbuf_defrag_failed++;
292 m_freem(*m_headp);
293 *m_headp = NULL;
294 return (ENOBUFS);
295 }
296 *m_headp = m;
297

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385 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
386 /*
387 * Advance the Transmit Descriptor Tail (Tdt), this tells the
388 * hardware that this frame is available to transmit.
389 */
390 ++txr->total_packets;
391 wr32(hw, txr->tail, i);
392
290 if (m == NULL) {
291 que->mbuf_defrag_failed++;
292 m_freem(*m_headp);
293 *m_headp = NULL;
294 return (ENOBUFS);
295 }
296 *m_headp = m;
297

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385 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
386 /*
387 * Advance the Transmit Descriptor Tail (Tdt), this tells the
388 * hardware that this frame is available to transmit.
389 */
390 ++txr->total_packets;
391 wr32(hw, txr->tail, i);
392
393 ixl_flush(hw);
393 /* Mark outstanding work */
394 if (que->busy == 0)
395 que->busy = 1;
396 return (0);
397
398xmit_fail:
399 bus_dmamap_unload(tag, buf->map);
400 return (error);

--- 1427 unchanged lines hidden --- 		394 /* Mark outstanding work */
395 if (que->busy == 0)
396 que->busy = 1;
397 return (0);
398
399xmit_fail:
400 bus_dmamap_unload(tag, buf->map);
401 return (error);

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