Lines Matching full:tx
159 struct lan743x_tx *tx = context; in lan743x_tx_isr() local
160 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_isr()
166 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
169 if (int_sts & INT_BIT_DMA_TX_(tx->channel_number)) { in lan743x_tx_isr()
170 u32 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_isr()
187 napi_schedule(&tx->napi); in lan743x_tx_isr()
195 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
262 lan743x_tx_isr(&adapter->tx[channel], in lan743x_intr_shared_isr()
601 /* map TX interrupt to vector */ in lan743x_intr_open()
605 /* Remove TX interrupt from shared mask */ in lan743x_intr_open()
609 &adapter->tx[index]); in lan743x_intr_open()
1264 static void lan743x_tx_release_desc(struct lan743x_tx *tx, in lan743x_tx_release_desc() argument
1272 descriptor = &tx->ring_cpu_ptr[descriptor_index]; in lan743x_tx_release_desc()
1273 buffer_info = &tx->buffer_info[descriptor_index]; in lan743x_tx_release_desc()
1288 dma_unmap_page(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1293 dma_unmap_single(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1310 lan743x_ptp_unrequest_tx_timestamp(tx->adapter); in lan743x_tx_release_desc()
1315 lan743x_ptp_tx_timestamp_skb(tx->adapter, in lan743x_tx_release_desc()
1330 static int lan743x_tx_next_index(struct lan743x_tx *tx, int index) in lan743x_tx_next_index() argument
1332 return ((++index) % tx->ring_size); in lan743x_tx_next_index()
1335 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_completed_descriptors() argument
1337 while (le32_to_cpu(*tx->head_cpu_ptr) != (tx->last_head)) { in lan743x_tx_release_completed_descriptors()
1338 lan743x_tx_release_desc(tx, tx->last_head, false); in lan743x_tx_release_completed_descriptors()
1339 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_completed_descriptors()
1343 static void lan743x_tx_release_all_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_all_descriptors() argument
1347 original_head = tx->last_head; in lan743x_tx_release_all_descriptors()
1349 lan743x_tx_release_desc(tx, tx->last_head, true); in lan743x_tx_release_all_descriptors()
1350 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_all_descriptors()
1351 } while (tx->last_head != original_head); in lan743x_tx_release_all_descriptors()
1352 memset(tx->ring_cpu_ptr, 0, in lan743x_tx_release_all_descriptors()
1353 sizeof(*tx->ring_cpu_ptr) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1354 memset(tx->buffer_info, 0, in lan743x_tx_release_all_descriptors()
1355 sizeof(*tx->buffer_info) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1358 static int lan743x_tx_get_desc_cnt(struct lan743x_tx *tx, in lan743x_tx_get_desc_cnt() argument
1371 static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx) in lan743x_tx_get_avail_desc() argument
1373 int last_head = tx->last_head; in lan743x_tx_get_avail_desc()
1374 int last_tail = tx->last_tail; in lan743x_tx_get_avail_desc()
1377 return tx->ring_size - last_tail + last_head - 1; in lan743x_tx_get_avail_desc()
1382 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx, in lan743x_tx_set_timestamping_mode() argument
1387 tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1389 tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1391 tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1393 tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1396 static int lan743x_tx_frame_start(struct lan743x_tx *tx, in lan743x_tx_frame_start() argument
1404 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_start()
1408 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_start()
1412 tx->frame_flags |= TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_start()
1413 tx->frame_first = tx->last_tail; in lan743x_tx_frame_start()
1414 tx->frame_tail = tx->frame_first; in lan743x_tx_frame_start()
1416 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_start()
1417 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_start()
1433 tx->frame_data0 = (first_buffer_length & in lan743x_tx_frame_start()
1439 tx->frame_data0 |= TX_DESC_DATA0_TSE_; in lan743x_tx_frame_start()
1442 tx->frame_data0 |= TX_DESC_DATA0_ICE_ | in lan743x_tx_frame_start()
1450 static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx, in lan743x_tx_frame_add_lso() argument
1455 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_add_lso()
1461 tx->frame_data0 |= TX_DESC_DATA0_EXT_; in lan743x_tx_frame_add_lso()
1463 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_add_lso()
1464 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_add_lso()
1466 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1467 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_lso()
1470 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_lso()
1471 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1472 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1484 tx->frame_data0 = (frame_length & TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_) | in lan743x_tx_frame_add_lso()
1491 static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx, in lan743x_tx_frame_add_fragment() argument
1496 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_add_fragment()
1500 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_add_fragment()
1510 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1511 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_fragment()
1514 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_fragment()
1515 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1516 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1524 desc_index = tx->frame_first; in lan743x_tx_frame_add_fragment()
1525 while (desc_index != tx->frame_tail) { in lan743x_tx_frame_add_fragment()
1526 lan743x_tx_release_desc(tx, desc_index, true); in lan743x_tx_frame_add_fragment()
1527 desc_index = lan743x_tx_next_index(tx, desc_index); in lan743x_tx_frame_add_fragment()
1530 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_add_fragment()
1531 tx->frame_first = 0; in lan743x_tx_frame_add_fragment()
1532 tx->frame_data0 = 0; in lan743x_tx_frame_add_fragment()
1533 tx->frame_tail = 0; in lan743x_tx_frame_add_fragment()
1548 tx->frame_data0 = (fragment_length & TX_DESC_DATA0_BUF_LENGTH_MASK_) | in lan743x_tx_frame_add_fragment()
1556 static void lan743x_tx_frame_end(struct lan743x_tx *tx, in lan743x_tx_frame_end() argument
1562 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_end()
1566 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_end()
1570 if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) == in lan743x_tx_frame_end()
1572 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_end()
1573 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_end()
1576 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_end()
1577 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_end()
1584 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_end()
1585 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_end()
1586 tx->last_tail = tx->frame_tail; in lan743x_tx_frame_end()
1590 if (tx->vector_flags & LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1592 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1596 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_frame_end()
1597 tx_tail_flags | tx->frame_tail); in lan743x_tx_frame_end()
1598 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_end()
1601 static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, in lan743x_tx_xmit_frame() argument
1615 required_number_of_descriptors = lan743x_tx_get_desc_cnt(tx, skb); in lan743x_tx_xmit_frame()
1617 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1619 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_xmit_frame()
1620 if (required_number_of_descriptors > (tx->ring_size - 1)) { in lan743x_tx_xmit_frame()
1624 tx->overflow_skb = skb; in lan743x_tx_xmit_frame()
1625 netif_stop_queue(tx->adapter->netdev); in lan743x_tx_xmit_frame()
1632 (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) && in lan743x_tx_xmit_frame()
1633 (lan743x_ptp_request_tx_timestamp(tx->adapter))) { in lan743x_tx_xmit_frame()
1636 if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC) in lan743x_tx_xmit_frame()
1649 if (lan743x_tx_frame_start(tx, in lan743x_tx_xmit_frame()
1659 lan743x_tx_frame_add_lso(tx, frame_length, nr_frags); in lan743x_tx_xmit_frame()
1667 if (lan743x_tx_frame_add_fragment(tx, frag, frame_length)) { in lan743x_tx_xmit_frame()
1679 lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync); in lan743x_tx_xmit_frame()
1682 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1688 struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); in lan743x_tx_napi_poll() local
1689 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_napi_poll()
1694 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_napi_poll()
1696 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) in lan743x_tx_napi_poll()
1698 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1700 /* clean up tx ring */ in lan743x_tx_napi_poll()
1701 lan743x_tx_release_completed_descriptors(tx); in lan743x_tx_napi_poll()
1703 if (tx->overflow_skb) { in lan743x_tx_napi_poll()
1704 if (lan743x_tx_get_desc_cnt(tx, tx->overflow_skb) <= in lan743x_tx_napi_poll()
1705 lan743x_tx_get_avail_desc(tx)) in lan743x_tx_napi_poll()
1711 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1715 lan743x_tx_xmit_frame(tx, tx->overflow_skb); in lan743x_tx_napi_poll()
1716 tx->overflow_skb = NULL; in lan743x_tx_napi_poll()
1725 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_napi_poll()
1732 static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx) in lan743x_tx_ring_cleanup() argument
1734 if (tx->head_cpu_ptr) { in lan743x_tx_ring_cleanup()
1735 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1736 sizeof(*tx->head_cpu_ptr), tx->head_cpu_ptr, in lan743x_tx_ring_cleanup()
1737 tx->head_dma_ptr); in lan743x_tx_ring_cleanup()
1738 tx->head_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1739 tx->head_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1741 kfree(tx->buffer_info); in lan743x_tx_ring_cleanup()
1742 tx->buffer_info = NULL; in lan743x_tx_ring_cleanup()
1744 if (tx->ring_cpu_ptr) { in lan743x_tx_ring_cleanup()
1745 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1746 tx->ring_allocation_size, tx->ring_cpu_ptr, in lan743x_tx_ring_cleanup()
1747 tx->ring_dma_ptr); in lan743x_tx_ring_cleanup()
1748 tx->ring_allocation_size = 0; in lan743x_tx_ring_cleanup()
1749 tx->ring_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1750 tx->ring_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1752 tx->ring_size = 0; in lan743x_tx_ring_cleanup()
1755 static int lan743x_tx_ring_init(struct lan743x_tx *tx) in lan743x_tx_ring_init() argument
1762 tx->ring_size = LAN743X_TX_RING_SIZE; in lan743x_tx_ring_init()
1763 if (tx->ring_size & ~TX_CFG_B_TX_RING_LEN_MASK_) { in lan743x_tx_ring_init()
1767 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1769 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1771 dev_warn(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1777 ring_allocation_size = ALIGN(tx->ring_size * in lan743x_tx_ring_init()
1781 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1788 tx->ring_allocation_size = ring_allocation_size; in lan743x_tx_ring_init()
1789 tx->ring_cpu_ptr = (struct lan743x_tx_descriptor *)cpu_ptr; in lan743x_tx_ring_init()
1790 tx->ring_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1792 cpu_ptr = kcalloc(tx->ring_size, sizeof(*tx->buffer_info), GFP_KERNEL); in lan743x_tx_ring_init()
1797 tx->buffer_info = (struct lan743x_tx_buffer_info *)cpu_ptr; in lan743x_tx_ring_init()
1799 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1800 sizeof(*tx->head_cpu_ptr), &dma_ptr, in lan743x_tx_ring_init()
1807 tx->head_cpu_ptr = cpu_ptr; in lan743x_tx_ring_init()
1808 tx->head_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1809 if (tx->head_dma_ptr & 0x3) { in lan743x_tx_ring_init()
1817 lan743x_tx_ring_cleanup(tx); in lan743x_tx_ring_init()
1821 static void lan743x_tx_close(struct lan743x_tx *tx) in lan743x_tx_close() argument
1823 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_close()
1827 DMAC_CMD_STOP_T_(tx->channel_number)); in lan743x_tx_close()
1828 lan743x_dmac_tx_wait_till_stopped(adapter, tx->channel_number); in lan743x_tx_close()
1832 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_close()
1834 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_close()
1835 napi_disable(&tx->napi); in lan743x_tx_close()
1836 netif_napi_del(&tx->napi); in lan743x_tx_close()
1839 FCT_TX_CTL_DIS_(tx->channel_number)); in lan743x_tx_close()
1841 FCT_TX_CTL_EN_(tx->channel_number), in lan743x_tx_close()
1844 lan743x_tx_release_all_descriptors(tx); in lan743x_tx_close()
1846 if (tx->overflow_skb) { in lan743x_tx_close()
1847 dev_kfree_skb(tx->overflow_skb); in lan743x_tx_close()
1848 tx->overflow_skb = NULL; in lan743x_tx_close()
1851 lan743x_tx_ring_cleanup(tx); in lan743x_tx_close()
1854 static int lan743x_tx_open(struct lan743x_tx *tx) in lan743x_tx_open() argument
1860 adapter = tx->adapter; in lan743x_tx_open()
1861 ret = lan743x_tx_ring_init(tx); in lan743x_tx_open()
1867 FCT_TX_CTL_RESET_(tx->channel_number)); in lan743x_tx_open()
1869 FCT_TX_CTL_RESET_(tx->channel_number), in lan743x_tx_open()
1874 FCT_TX_CTL_EN_(tx->channel_number)); in lan743x_tx_open()
1876 /* reset tx channel */ in lan743x_tx_open()
1878 DMAC_CMD_TX_SWR_(tx->channel_number)); in lan743x_tx_open()
1880 DMAC_CMD_TX_SWR_(tx->channel_number), in lan743x_tx_open()
1885 TX_BASE_ADDRH(tx->channel_number), in lan743x_tx_open()
1886 DMA_ADDR_HIGH32(tx->ring_dma_ptr)); in lan743x_tx_open()
1888 TX_BASE_ADDRL(tx->channel_number), in lan743x_tx_open()
1889 DMA_ADDR_LOW32(tx->ring_dma_ptr)); in lan743x_tx_open()
1892 data = lan743x_csr_read(adapter, TX_CFG_B(tx->channel_number)); in lan743x_tx_open()
1894 data |= ((tx->ring_size) & TX_CFG_B_TX_RING_LEN_MASK_); in lan743x_tx_open()
1897 lan743x_csr_write(adapter, TX_CFG_B(tx->channel_number), data); in lan743x_tx_open()
1907 lan743x_csr_write(adapter, TX_CFG_A(tx->channel_number), data); in lan743x_tx_open()
1911 TX_HEAD_WRITEBACK_ADDRH(tx->channel_number), in lan743x_tx_open()
1912 DMA_ADDR_HIGH32(tx->head_dma_ptr)); in lan743x_tx_open()
1914 TX_HEAD_WRITEBACK_ADDRL(tx->channel_number), in lan743x_tx_open()
1915 DMA_ADDR_LOW32(tx->head_dma_ptr)); in lan743x_tx_open()
1918 tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number)); in lan743x_tx_open()
1921 tx->last_tail = 0; in lan743x_tx_open()
1922 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_open()
1923 (u32)(tx->last_tail)); in lan743x_tx_open()
1924 tx->vector_flags = lan743x_intr_get_vector_flags(adapter, in lan743x_tx_open()
1926 (tx->channel_number)); in lan743x_tx_open()
1928 &tx->napi, lan743x_tx_napi_poll, in lan743x_tx_open()
1929 tx->ring_size - 1); in lan743x_tx_open()
1930 napi_enable(&tx->napi); in lan743x_tx_open()
1933 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR) in lan743x_tx_open()
1935 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR) in lan743x_tx_open()
1937 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C) in lan743x_tx_open()
1939 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C) in lan743x_tx_open()
1941 lan743x_csr_write(adapter, TX_CFG_C(tx->channel_number), data); in lan743x_tx_open()
1943 if (!(tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET)) in lan743x_tx_open()
1945 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_open()
1947 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_open()
1951 DMAC_CMD_START_T_(tx->channel_number)); in lan743x_tx_open()
2541 lan743x_tx_close(&adapter->tx[0]); in lan743x_netdev_close()
2587 ret = lan743x_tx_open(&adapter->tx[0]); in lan743x_netdev_open()
2620 return lan743x_tx_xmit_frame(&adapter->tx[0], skb); in lan743x_netdev_xmit_frame()
2747 struct lan743x_tx *tx; in lan743x_hardware_init() local
2781 tx = &adapter->tx[0]; in lan743x_hardware_init()
2782 tx->adapter = adapter; in lan743x_hardware_init()
2783 tx->channel_number = 0; in lan743x_hardware_init()
2784 spin_lock_init(&tx->ring_lock); in lan743x_hardware_init()