Lines Matching full:tx
155 struct lan743x_tx *tx = context; in lan743x_tx_isr() local
156 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_isr()
162 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
165 if (int_sts & INT_BIT_DMA_TX_(tx->channel_number)) { in lan743x_tx_isr()
166 u32 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_isr()
183 napi_schedule(&tx->napi); in lan743x_tx_isr()
191 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
258 lan743x_tx_isr(&adapter->tx[channel], in lan743x_intr_shared_isr()
594 /* map TX interrupt to vector */ in lan743x_intr_open()
598 /* Remove TX interrupt from shared mask */ in lan743x_intr_open()
602 &adapter->tx[index]); in lan743x_intr_open()
1243 static void lan743x_tx_release_desc(struct lan743x_tx *tx, in lan743x_tx_release_desc() argument
1251 descriptor = &tx->ring_cpu_ptr[descriptor_index]; in lan743x_tx_release_desc()
1252 buffer_info = &tx->buffer_info[descriptor_index]; in lan743x_tx_release_desc()
1267 dma_unmap_page(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1272 dma_unmap_single(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1289 lan743x_ptp_unrequest_tx_timestamp(tx->adapter); in lan743x_tx_release_desc()
1294 lan743x_ptp_tx_timestamp_skb(tx->adapter, in lan743x_tx_release_desc()
1309 static int lan743x_tx_next_index(struct lan743x_tx *tx, int index) in lan743x_tx_next_index() argument
1311 return ((++index) % tx->ring_size); in lan743x_tx_next_index()
1314 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_completed_descriptors() argument
1316 while (le32_to_cpu(*tx->head_cpu_ptr) != (tx->last_head)) { in lan743x_tx_release_completed_descriptors()
1317 lan743x_tx_release_desc(tx, tx->last_head, false); in lan743x_tx_release_completed_descriptors()
1318 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_completed_descriptors()
1322 static void lan743x_tx_release_all_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_all_descriptors() argument
1326 original_head = tx->last_head; in lan743x_tx_release_all_descriptors()
1328 lan743x_tx_release_desc(tx, tx->last_head, true); in lan743x_tx_release_all_descriptors()
1329 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_all_descriptors()
1330 } while (tx->last_head != original_head); in lan743x_tx_release_all_descriptors()
1331 memset(tx->ring_cpu_ptr, 0, in lan743x_tx_release_all_descriptors()
1332 sizeof(*tx->ring_cpu_ptr) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1333 memset(tx->buffer_info, 0, in lan743x_tx_release_all_descriptors()
1334 sizeof(*tx->buffer_info) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1337 static int lan743x_tx_get_desc_cnt(struct lan743x_tx *tx, in lan743x_tx_get_desc_cnt() argument
1350 static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx) in lan743x_tx_get_avail_desc() argument
1352 int last_head = tx->last_head; in lan743x_tx_get_avail_desc()
1353 int last_tail = tx->last_tail; in lan743x_tx_get_avail_desc()
1356 return tx->ring_size - last_tail + last_head - 1; in lan743x_tx_get_avail_desc()
1361 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx, in lan743x_tx_set_timestamping_mode() argument
1366 tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1368 tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1370 tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1372 tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1375 static int lan743x_tx_frame_start(struct lan743x_tx *tx, in lan743x_tx_frame_start() argument
1383 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_start()
1387 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_start()
1391 tx->frame_flags |= TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_start()
1392 tx->frame_first = tx->last_tail; in lan743x_tx_frame_start()
1393 tx->frame_tail = tx->frame_first; in lan743x_tx_frame_start()
1395 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_start()
1396 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_start()
1412 tx->frame_data0 = (first_buffer_length & in lan743x_tx_frame_start()
1418 tx->frame_data0 |= TX_DESC_DATA0_TSE_; in lan743x_tx_frame_start()
1421 tx->frame_data0 |= TX_DESC_DATA0_ICE_ | in lan743x_tx_frame_start()
1429 static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx, in lan743x_tx_frame_add_lso() argument
1434 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_add_lso()
1440 tx->frame_data0 |= TX_DESC_DATA0_EXT_; in lan743x_tx_frame_add_lso()
1442 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_add_lso()
1443 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_add_lso()
1445 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1446 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_lso()
1449 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_lso()
1450 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1451 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1463 tx->frame_data0 = (frame_length & TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_) | in lan743x_tx_frame_add_lso()
1470 static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx, in lan743x_tx_frame_add_fragment() argument
1475 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_add_fragment()
1479 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_add_fragment()
1489 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1490 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_fragment()
1493 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_fragment()
1494 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1495 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1503 desc_index = tx->frame_first; in lan743x_tx_frame_add_fragment()
1504 while (desc_index != tx->frame_tail) { in lan743x_tx_frame_add_fragment()
1505 lan743x_tx_release_desc(tx, desc_index, true); in lan743x_tx_frame_add_fragment()
1506 desc_index = lan743x_tx_next_index(tx, desc_index); in lan743x_tx_frame_add_fragment()
1509 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_add_fragment()
1510 tx->frame_first = 0; in lan743x_tx_frame_add_fragment()
1511 tx->frame_data0 = 0; in lan743x_tx_frame_add_fragment()
1512 tx->frame_tail = 0; in lan743x_tx_frame_add_fragment()
1527 tx->frame_data0 = (fragment_length & TX_DESC_DATA0_BUF_LENGTH_MASK_) | in lan743x_tx_frame_add_fragment()
1535 static void lan743x_tx_frame_end(struct lan743x_tx *tx, in lan743x_tx_frame_end() argument
1541 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_end()
1545 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_end()
1549 if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) == in lan743x_tx_frame_end()
1551 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_end()
1552 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_end()
1555 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_end()
1556 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_end()
1563 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_end()
1564 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_end()
1565 tx->last_tail = tx->frame_tail; in lan743x_tx_frame_end()
1569 if (tx->vector_flags & LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1571 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1575 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_frame_end()
1576 tx_tail_flags | tx->frame_tail); in lan743x_tx_frame_end()
1577 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_end()
1580 static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, in lan743x_tx_xmit_frame() argument
1594 required_number_of_descriptors = lan743x_tx_get_desc_cnt(tx, skb); in lan743x_tx_xmit_frame()
1596 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1598 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_xmit_frame()
1599 if (required_number_of_descriptors > (tx->ring_size - 1)) { in lan743x_tx_xmit_frame()
1603 tx->overflow_skb = skb; in lan743x_tx_xmit_frame()
1604 netif_stop_queue(tx->adapter->netdev); in lan743x_tx_xmit_frame()
1611 (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) && in lan743x_tx_xmit_frame()
1612 (lan743x_ptp_request_tx_timestamp(tx->adapter))) { in lan743x_tx_xmit_frame()
1615 if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC) in lan743x_tx_xmit_frame()
1628 if (lan743x_tx_frame_start(tx, in lan743x_tx_xmit_frame()
1638 lan743x_tx_frame_add_lso(tx, frame_length, nr_frags); in lan743x_tx_xmit_frame()
1646 if (lan743x_tx_frame_add_fragment(tx, frag, frame_length)) { in lan743x_tx_xmit_frame()
1658 lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync); in lan743x_tx_xmit_frame()
1661 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1667 struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); in lan743x_tx_napi_poll() local
1668 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_napi_poll()
1673 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_napi_poll()
1675 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) in lan743x_tx_napi_poll()
1677 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1679 /* clean up tx ring */ in lan743x_tx_napi_poll()
1680 lan743x_tx_release_completed_descriptors(tx); in lan743x_tx_napi_poll()
1682 if (tx->overflow_skb) { in lan743x_tx_napi_poll()
1683 if (lan743x_tx_get_desc_cnt(tx, tx->overflow_skb) <= in lan743x_tx_napi_poll()
1684 lan743x_tx_get_avail_desc(tx)) in lan743x_tx_napi_poll()
1690 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1694 lan743x_tx_xmit_frame(tx, tx->overflow_skb); in lan743x_tx_napi_poll()
1695 tx->overflow_skb = NULL; in lan743x_tx_napi_poll()
1704 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_napi_poll()
1711 static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx) in lan743x_tx_ring_cleanup() argument
1713 if (tx->head_cpu_ptr) { in lan743x_tx_ring_cleanup()
1714 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1715 sizeof(*tx->head_cpu_ptr), tx->head_cpu_ptr, in lan743x_tx_ring_cleanup()
1716 tx->head_dma_ptr); in lan743x_tx_ring_cleanup()
1717 tx->head_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1718 tx->head_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1720 kfree(tx->buffer_info); in lan743x_tx_ring_cleanup()
1721 tx->buffer_info = NULL; in lan743x_tx_ring_cleanup()
1723 if (tx->ring_cpu_ptr) { in lan743x_tx_ring_cleanup()
1724 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1725 tx->ring_allocation_size, tx->ring_cpu_ptr, in lan743x_tx_ring_cleanup()
1726 tx->ring_dma_ptr); in lan743x_tx_ring_cleanup()
1727 tx->ring_allocation_size = 0; in lan743x_tx_ring_cleanup()
1728 tx->ring_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1729 tx->ring_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1731 tx->ring_size = 0; in lan743x_tx_ring_cleanup()
1734 static int lan743x_tx_ring_init(struct lan743x_tx *tx) in lan743x_tx_ring_init() argument
1741 tx->ring_size = LAN743X_TX_RING_SIZE; in lan743x_tx_ring_init()
1742 if (tx->ring_size & ~TX_CFG_B_TX_RING_LEN_MASK_) { in lan743x_tx_ring_init()
1746 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1748 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1750 dev_warn(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1756 ring_allocation_size = ALIGN(tx->ring_size * in lan743x_tx_ring_init()
1760 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1767 tx->ring_allocation_size = ring_allocation_size; in lan743x_tx_ring_init()
1768 tx->ring_cpu_ptr = (struct lan743x_tx_descriptor *)cpu_ptr; in lan743x_tx_ring_init()
1769 tx->ring_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1771 cpu_ptr = kcalloc(tx->ring_size, sizeof(*tx->buffer_info), GFP_KERNEL); in lan743x_tx_ring_init()
1776 tx->buffer_info = (struct lan743x_tx_buffer_info *)cpu_ptr; in lan743x_tx_ring_init()
1778 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1779 sizeof(*tx->head_cpu_ptr), &dma_ptr, in lan743x_tx_ring_init()
1786 tx->head_cpu_ptr = cpu_ptr; in lan743x_tx_ring_init()
1787 tx->head_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1788 if (tx->head_dma_ptr & 0x3) { in lan743x_tx_ring_init()
1796 lan743x_tx_ring_cleanup(tx); in lan743x_tx_ring_init()
1800 static void lan743x_tx_close(struct lan743x_tx *tx) in lan743x_tx_close() argument
1802 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_close()
1806 DMAC_CMD_STOP_T_(tx->channel_number)); in lan743x_tx_close()
1807 lan743x_dmac_tx_wait_till_stopped(adapter, tx->channel_number); in lan743x_tx_close()
1811 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_close()
1813 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_close()
1814 napi_disable(&tx->napi); in lan743x_tx_close()
1815 netif_napi_del(&tx->napi); in lan743x_tx_close()
1818 FCT_TX_CTL_DIS_(tx->channel_number)); in lan743x_tx_close()
1820 FCT_TX_CTL_EN_(tx->channel_number), in lan743x_tx_close()
1823 lan743x_tx_release_all_descriptors(tx); in lan743x_tx_close()
1825 if (tx->overflow_skb) { in lan743x_tx_close()
1826 dev_kfree_skb(tx->overflow_skb); in lan743x_tx_close()
1827 tx->overflow_skb = NULL; in lan743x_tx_close()
1830 lan743x_tx_ring_cleanup(tx); in lan743x_tx_close()
1833 static int lan743x_tx_open(struct lan743x_tx *tx) in lan743x_tx_open() argument
1839 adapter = tx->adapter; in lan743x_tx_open()
1840 ret = lan743x_tx_ring_init(tx); in lan743x_tx_open()
1846 FCT_TX_CTL_RESET_(tx->channel_number)); in lan743x_tx_open()
1848 FCT_TX_CTL_RESET_(tx->channel_number), in lan743x_tx_open()
1853 FCT_TX_CTL_EN_(tx->channel_number)); in lan743x_tx_open()
1855 /* reset tx channel */ in lan743x_tx_open()
1857 DMAC_CMD_TX_SWR_(tx->channel_number)); in lan743x_tx_open()
1859 DMAC_CMD_TX_SWR_(tx->channel_number), in lan743x_tx_open()
1864 TX_BASE_ADDRH(tx->channel_number), in lan743x_tx_open()
1865 DMA_ADDR_HIGH32(tx->ring_dma_ptr)); in lan743x_tx_open()
1867 TX_BASE_ADDRL(tx->channel_number), in lan743x_tx_open()
1868 DMA_ADDR_LOW32(tx->ring_dma_ptr)); in lan743x_tx_open()
1871 data = lan743x_csr_read(adapter, TX_CFG_B(tx->channel_number)); in lan743x_tx_open()
1873 data |= ((tx->ring_size) & TX_CFG_B_TX_RING_LEN_MASK_); in lan743x_tx_open()
1876 lan743x_csr_write(adapter, TX_CFG_B(tx->channel_number), data); in lan743x_tx_open()
1886 lan743x_csr_write(adapter, TX_CFG_A(tx->channel_number), data); in lan743x_tx_open()
1890 TX_HEAD_WRITEBACK_ADDRH(tx->channel_number), in lan743x_tx_open()
1891 DMA_ADDR_HIGH32(tx->head_dma_ptr)); in lan743x_tx_open()
1893 TX_HEAD_WRITEBACK_ADDRL(tx->channel_number), in lan743x_tx_open()
1894 DMA_ADDR_LOW32(tx->head_dma_ptr)); in lan743x_tx_open()
1897 tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number)); in lan743x_tx_open()
1900 tx->last_tail = 0; in lan743x_tx_open()
1901 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_open()
1902 (u32)(tx->last_tail)); in lan743x_tx_open()
1903 tx->vector_flags = lan743x_intr_get_vector_flags(adapter, in lan743x_tx_open()
1905 (tx->channel_number)); in lan743x_tx_open()
1907 &tx->napi, lan743x_tx_napi_poll, in lan743x_tx_open()
1908 tx->ring_size - 1); in lan743x_tx_open()
1909 napi_enable(&tx->napi); in lan743x_tx_open()
1912 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR) in lan743x_tx_open()
1914 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR) in lan743x_tx_open()
1916 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C) in lan743x_tx_open()
1918 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C) in lan743x_tx_open()
1920 lan743x_csr_write(adapter, TX_CFG_C(tx->channel_number), data); in lan743x_tx_open()
1922 if (!(tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET)) in lan743x_tx_open()
1924 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_open()
1926 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_open()
1930 DMAC_CMD_START_T_(tx->channel_number)); in lan743x_tx_open()
2506 lan743x_tx_close(&adapter->tx[0]); in lan743x_netdev_close()
2552 ret = lan743x_tx_open(&adapter->tx[0]); in lan743x_netdev_open()
2585 return lan743x_tx_xmit_frame(&adapter->tx[0], skb); in lan743x_netdev_xmit_frame()
2712 struct lan743x_tx *tx; in lan743x_hardware_init() local
2746 tx = &adapter->tx[0]; in lan743x_hardware_init()
2747 tx->adapter = adapter; in lan743x_hardware_init()
2748 tx->channel_number = 0; in lan743x_hardware_init()
2749 spin_lock_init(&tx->ring_lock); in lan743x_hardware_init()