Lines Matching full:tx
171 struct lan743x_tx *tx = context; in lan743x_tx_isr() local
172 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_isr()
178 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
181 if (int_sts & INT_BIT_DMA_TX_(tx->channel_number)) { in lan743x_tx_isr()
182 u32 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_isr()
199 napi_schedule(&tx->napi); in lan743x_tx_isr()
207 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
274 lan743x_tx_isr(&adapter->tx[channel], in lan743x_intr_shared_isr()
613 /* map TX interrupt to vector */ in lan743x_intr_open()
617 /* Remove TX interrupt from shared mask */ in lan743x_intr_open()
621 &adapter->tx[index]); in lan743x_intr_open()
1277 static void lan743x_tx_release_desc(struct lan743x_tx *tx, in lan743x_tx_release_desc() argument
1285 descriptor = &tx->ring_cpu_ptr[descriptor_index]; in lan743x_tx_release_desc()
1286 buffer_info = &tx->buffer_info[descriptor_index]; in lan743x_tx_release_desc()
1301 dma_unmap_page(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1306 dma_unmap_single(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1323 lan743x_ptp_unrequest_tx_timestamp(tx->adapter); in lan743x_tx_release_desc()
1328 lan743x_ptp_tx_timestamp_skb(tx->adapter, in lan743x_tx_release_desc()
1343 static int lan743x_tx_next_index(struct lan743x_tx *tx, int index) in lan743x_tx_next_index() argument
1345 return ((++index) % tx->ring_size); in lan743x_tx_next_index()
1348 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_completed_descriptors() argument
1350 while (le32_to_cpu(*tx->head_cpu_ptr) != (tx->last_head)) { in lan743x_tx_release_completed_descriptors()
1351 lan743x_tx_release_desc(tx, tx->last_head, false); in lan743x_tx_release_completed_descriptors()
1352 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_completed_descriptors()
1356 static void lan743x_tx_release_all_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_all_descriptors() argument
1360 original_head = tx->last_head; in lan743x_tx_release_all_descriptors()
1362 lan743x_tx_release_desc(tx, tx->last_head, true); in lan743x_tx_release_all_descriptors()
1363 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_all_descriptors()
1364 } while (tx->last_head != original_head); in lan743x_tx_release_all_descriptors()
1365 memset(tx->ring_cpu_ptr, 0, in lan743x_tx_release_all_descriptors()
1366 sizeof(*tx->ring_cpu_ptr) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1367 memset(tx->buffer_info, 0, in lan743x_tx_release_all_descriptors()
1368 sizeof(*tx->buffer_info) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1371 static int lan743x_tx_get_desc_cnt(struct lan743x_tx *tx, in lan743x_tx_get_desc_cnt() argument
1384 static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx) in lan743x_tx_get_avail_desc() argument
1386 int last_head = tx->last_head; in lan743x_tx_get_avail_desc()
1387 int last_tail = tx->last_tail; in lan743x_tx_get_avail_desc()
1390 return tx->ring_size - last_tail + last_head - 1; in lan743x_tx_get_avail_desc()
1395 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx, in lan743x_tx_set_timestamping_mode() argument
1400 tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1402 tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1404 tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1406 tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1409 static int lan743x_tx_frame_start(struct lan743x_tx *tx, in lan743x_tx_frame_start() argument
1417 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_start()
1421 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_start()
1425 tx->frame_flags |= TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_start()
1426 tx->frame_first = tx->last_tail; in lan743x_tx_frame_start()
1427 tx->frame_tail = tx->frame_first; in lan743x_tx_frame_start()
1429 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_start()
1430 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_start()
1446 tx->frame_data0 = (first_buffer_length & in lan743x_tx_frame_start()
1452 tx->frame_data0 |= TX_DESC_DATA0_TSE_; in lan743x_tx_frame_start()
1455 tx->frame_data0 |= TX_DESC_DATA0_ICE_ | in lan743x_tx_frame_start()
1463 static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx, in lan743x_tx_frame_add_lso() argument
1468 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_add_lso()
1474 tx->frame_data0 |= TX_DESC_DATA0_EXT_; in lan743x_tx_frame_add_lso()
1476 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_add_lso()
1477 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_add_lso()
1479 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1480 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_lso()
1483 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_lso()
1484 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1485 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1497 tx->frame_data0 = (frame_length & TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_) | in lan743x_tx_frame_add_lso()
1504 static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx, in lan743x_tx_frame_add_fragment() argument
1509 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_add_fragment()
1513 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_add_fragment()
1523 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1524 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_fragment()
1527 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_fragment()
1528 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1529 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1537 desc_index = tx->frame_first; in lan743x_tx_frame_add_fragment()
1538 while (desc_index != tx->frame_tail) { in lan743x_tx_frame_add_fragment()
1539 lan743x_tx_release_desc(tx, desc_index, true); in lan743x_tx_frame_add_fragment()
1540 desc_index = lan743x_tx_next_index(tx, desc_index); in lan743x_tx_frame_add_fragment()
1543 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_add_fragment()
1544 tx->frame_first = 0; in lan743x_tx_frame_add_fragment()
1545 tx->frame_data0 = 0; in lan743x_tx_frame_add_fragment()
1546 tx->frame_tail = 0; in lan743x_tx_frame_add_fragment()
1561 tx->frame_data0 = (fragment_length & TX_DESC_DATA0_BUF_LENGTH_MASK_) | in lan743x_tx_frame_add_fragment()
1569 static void lan743x_tx_frame_end(struct lan743x_tx *tx, in lan743x_tx_frame_end() argument
1575 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_end()
1579 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_end()
1583 if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) == in lan743x_tx_frame_end()
1585 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_end()
1586 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_end()
1589 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_end()
1590 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_end()
1597 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_end()
1598 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_end()
1599 tx->last_tail = tx->frame_tail; in lan743x_tx_frame_end()
1603 if (tx->vector_flags & LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1605 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1609 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_frame_end()
1610 tx_tail_flags | tx->frame_tail); in lan743x_tx_frame_end()
1611 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_end()
1614 static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, in lan743x_tx_xmit_frame() argument
1628 required_number_of_descriptors = lan743x_tx_get_desc_cnt(tx, skb); in lan743x_tx_xmit_frame()
1630 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1632 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_xmit_frame()
1633 if (required_number_of_descriptors > (tx->ring_size - 1)) { in lan743x_tx_xmit_frame()
1637 tx->overflow_skb = skb; in lan743x_tx_xmit_frame()
1638 netif_stop_queue(tx->adapter->netdev); in lan743x_tx_xmit_frame()
1645 (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) && in lan743x_tx_xmit_frame()
1646 (lan743x_ptp_request_tx_timestamp(tx->adapter))) { in lan743x_tx_xmit_frame()
1649 if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC) in lan743x_tx_xmit_frame()
1662 if (lan743x_tx_frame_start(tx, in lan743x_tx_xmit_frame()
1672 lan743x_tx_frame_add_lso(tx, frame_length, nr_frags); in lan743x_tx_xmit_frame()
1680 if (lan743x_tx_frame_add_fragment(tx, frag, frame_length)) { in lan743x_tx_xmit_frame()
1692 lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync); in lan743x_tx_xmit_frame()
1695 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1701 struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); in lan743x_tx_napi_poll() local
1702 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_napi_poll()
1707 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_napi_poll()
1709 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) in lan743x_tx_napi_poll()
1711 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1713 /* clean up tx ring */ in lan743x_tx_napi_poll()
1714 lan743x_tx_release_completed_descriptors(tx); in lan743x_tx_napi_poll()
1716 if (tx->overflow_skb) { in lan743x_tx_napi_poll()
1717 if (lan743x_tx_get_desc_cnt(tx, tx->overflow_skb) <= in lan743x_tx_napi_poll()
1718 lan743x_tx_get_avail_desc(tx)) in lan743x_tx_napi_poll()
1724 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1728 lan743x_tx_xmit_frame(tx, tx->overflow_skb); in lan743x_tx_napi_poll()
1729 tx->overflow_skb = NULL; in lan743x_tx_napi_poll()
1738 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_napi_poll()
1745 static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx) in lan743x_tx_ring_cleanup() argument
1747 if (tx->head_cpu_ptr) { in lan743x_tx_ring_cleanup()
1748 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1749 sizeof(*tx->head_cpu_ptr), tx->head_cpu_ptr, in lan743x_tx_ring_cleanup()
1750 tx->head_dma_ptr); in lan743x_tx_ring_cleanup()
1751 tx->head_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1752 tx->head_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1754 kfree(tx->buffer_info); in lan743x_tx_ring_cleanup()
1755 tx->buffer_info = NULL; in lan743x_tx_ring_cleanup()
1757 if (tx->ring_cpu_ptr) { in lan743x_tx_ring_cleanup()
1758 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1759 tx->ring_allocation_size, tx->ring_cpu_ptr, in lan743x_tx_ring_cleanup()
1760 tx->ring_dma_ptr); in lan743x_tx_ring_cleanup()
1761 tx->ring_allocation_size = 0; in lan743x_tx_ring_cleanup()
1762 tx->ring_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1763 tx->ring_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1765 tx->ring_size = 0; in lan743x_tx_ring_cleanup()
1768 static int lan743x_tx_ring_init(struct lan743x_tx *tx) in lan743x_tx_ring_init() argument
1775 tx->ring_size = LAN743X_TX_RING_SIZE; in lan743x_tx_ring_init()
1776 if (tx->ring_size & ~TX_CFG_B_TX_RING_LEN_MASK_) { in lan743x_tx_ring_init()
1780 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1782 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1784 dev_warn(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1790 ring_allocation_size = ALIGN(tx->ring_size * in lan743x_tx_ring_init()
1794 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1801 tx->ring_allocation_size = ring_allocation_size; in lan743x_tx_ring_init()
1802 tx->ring_cpu_ptr = (struct lan743x_tx_descriptor *)cpu_ptr; in lan743x_tx_ring_init()
1803 tx->ring_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1805 cpu_ptr = kcalloc(tx->ring_size, sizeof(*tx->buffer_info), GFP_KERNEL); in lan743x_tx_ring_init()
1810 tx->buffer_info = (struct lan743x_tx_buffer_info *)cpu_ptr; in lan743x_tx_ring_init()
1812 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1813 sizeof(*tx->head_cpu_ptr), &dma_ptr, in lan743x_tx_ring_init()
1820 tx->head_cpu_ptr = cpu_ptr; in lan743x_tx_ring_init()
1821 tx->head_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1822 if (tx->head_dma_ptr & 0x3) { in lan743x_tx_ring_init()
1830 lan743x_tx_ring_cleanup(tx); in lan743x_tx_ring_init()
1834 static void lan743x_tx_close(struct lan743x_tx *tx) in lan743x_tx_close() argument
1836 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_close()
1840 DMAC_CMD_STOP_T_(tx->channel_number)); in lan743x_tx_close()
1841 lan743x_dmac_tx_wait_till_stopped(adapter, tx->channel_number); in lan743x_tx_close()
1845 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_close()
1847 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_close()
1848 napi_disable(&tx->napi); in lan743x_tx_close()
1849 netif_napi_del(&tx->napi); in lan743x_tx_close()
1852 FCT_TX_CTL_DIS_(tx->channel_number)); in lan743x_tx_close()
1854 FCT_TX_CTL_EN_(tx->channel_number), in lan743x_tx_close()
1857 lan743x_tx_release_all_descriptors(tx); in lan743x_tx_close()
1859 if (tx->overflow_skb) { in lan743x_tx_close()
1860 dev_kfree_skb(tx->overflow_skb); in lan743x_tx_close()
1861 tx->overflow_skb = NULL; in lan743x_tx_close()
1864 lan743x_tx_ring_cleanup(tx); in lan743x_tx_close()
1867 static int lan743x_tx_open(struct lan743x_tx *tx) in lan743x_tx_open() argument
1873 adapter = tx->adapter; in lan743x_tx_open()
1874 ret = lan743x_tx_ring_init(tx); in lan743x_tx_open()
1880 FCT_TX_CTL_RESET_(tx->channel_number)); in lan743x_tx_open()
1882 FCT_TX_CTL_RESET_(tx->channel_number), in lan743x_tx_open()
1887 FCT_TX_CTL_EN_(tx->channel_number)); in lan743x_tx_open()
1889 /* reset tx channel */ in lan743x_tx_open()
1891 DMAC_CMD_TX_SWR_(tx->channel_number)); in lan743x_tx_open()
1893 DMAC_CMD_TX_SWR_(tx->channel_number), in lan743x_tx_open()
1898 TX_BASE_ADDRH(tx->channel_number), in lan743x_tx_open()
1899 DMA_ADDR_HIGH32(tx->ring_dma_ptr)); in lan743x_tx_open()
1901 TX_BASE_ADDRL(tx->channel_number), in lan743x_tx_open()
1902 DMA_ADDR_LOW32(tx->ring_dma_ptr)); in lan743x_tx_open()
1905 data = lan743x_csr_read(adapter, TX_CFG_B(tx->channel_number)); in lan743x_tx_open()
1907 data |= ((tx->ring_size) & TX_CFG_B_TX_RING_LEN_MASK_); in lan743x_tx_open()
1910 lan743x_csr_write(adapter, TX_CFG_B(tx->channel_number), data); in lan743x_tx_open()
1920 lan743x_csr_write(adapter, TX_CFG_A(tx->channel_number), data); in lan743x_tx_open()
1924 TX_HEAD_WRITEBACK_ADDRH(tx->channel_number), in lan743x_tx_open()
1925 DMA_ADDR_HIGH32(tx->head_dma_ptr)); in lan743x_tx_open()
1927 TX_HEAD_WRITEBACK_ADDRL(tx->channel_number), in lan743x_tx_open()
1928 DMA_ADDR_LOW32(tx->head_dma_ptr)); in lan743x_tx_open()
1931 tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number)); in lan743x_tx_open()
1934 tx->last_tail = 0; in lan743x_tx_open()
1935 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_open()
1936 (u32)(tx->last_tail)); in lan743x_tx_open()
1937 tx->vector_flags = lan743x_intr_get_vector_flags(adapter, in lan743x_tx_open()
1939 (tx->channel_number)); in lan743x_tx_open()
1941 &tx->napi, lan743x_tx_napi_poll, in lan743x_tx_open()
1942 tx->ring_size - 1); in lan743x_tx_open()
1943 napi_enable(&tx->napi); in lan743x_tx_open()
1946 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR) in lan743x_tx_open()
1948 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR) in lan743x_tx_open()
1950 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C) in lan743x_tx_open()
1952 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C) in lan743x_tx_open()
1954 lan743x_csr_write(adapter, TX_CFG_C(tx->channel_number), data); in lan743x_tx_open()
1956 if (!(tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET)) in lan743x_tx_open()
1958 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_open()
1960 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_open()
1964 DMAC_CMD_START_T_(tx->channel_number)); in lan743x_tx_open()
2554 lan743x_tx_close(&adapter->tx[0]); in lan743x_netdev_close()
2600 ret = lan743x_tx_open(&adapter->tx[0]); in lan743x_netdev_open()
2633 return lan743x_tx_xmit_frame(&adapter->tx[0], skb); in lan743x_netdev_xmit_frame()
2760 struct lan743x_tx *tx; in lan743x_hardware_init() local
2794 tx = &adapter->tx[0]; in lan743x_hardware_init()
2795 tx->adapter = adapter; in lan743x_hardware_init()
2796 tx->channel_number = 0; in lan743x_hardware_init()
2797 spin_lock_init(&tx->ring_lock); in lan743x_hardware_init()