Lines Matching refs: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()
602 &adapter->tx[index]); in lan743x_intr_open()
1237 static void lan743x_tx_release_desc(struct lan743x_tx *tx, in lan743x_tx_release_desc() argument
1245 descriptor = &tx->ring_cpu_ptr[descriptor_index]; in lan743x_tx_release_desc()
1246 buffer_info = &tx->buffer_info[descriptor_index]; in lan743x_tx_release_desc()
1261 dma_unmap_page(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1266 dma_unmap_single(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1283 lan743x_ptp_unrequest_tx_timestamp(tx->adapter); in lan743x_tx_release_desc()
1288 lan743x_ptp_tx_timestamp_skb(tx->adapter, in lan743x_tx_release_desc()
1303 static int lan743x_tx_next_index(struct lan743x_tx *tx, int index) in lan743x_tx_next_index() argument
1305 return ((++index) % tx->ring_size); in lan743x_tx_next_index()
1308 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_completed_descriptors() argument
1310 while (le32_to_cpu(*tx->head_cpu_ptr) != (tx->last_head)) { in lan743x_tx_release_completed_descriptors()
1311 lan743x_tx_release_desc(tx, tx->last_head, false); in lan743x_tx_release_completed_descriptors()
1312 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_completed_descriptors()
1316 static void lan743x_tx_release_all_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_all_descriptors() argument
1320 original_head = tx->last_head; in lan743x_tx_release_all_descriptors()
1322 lan743x_tx_release_desc(tx, tx->last_head, true); in lan743x_tx_release_all_descriptors()
1323 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_all_descriptors()
1324 } while (tx->last_head != original_head); in lan743x_tx_release_all_descriptors()
1325 memset(tx->ring_cpu_ptr, 0, in lan743x_tx_release_all_descriptors()
1326 sizeof(*tx->ring_cpu_ptr) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1327 memset(tx->buffer_info, 0, in lan743x_tx_release_all_descriptors()
1328 sizeof(*tx->buffer_info) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1331 static int lan743x_tx_get_desc_cnt(struct lan743x_tx *tx, in lan743x_tx_get_desc_cnt() argument
1344 static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx) in lan743x_tx_get_avail_desc() argument
1346 int last_head = tx->last_head; in lan743x_tx_get_avail_desc()
1347 int last_tail = tx->last_tail; in lan743x_tx_get_avail_desc()
1350 return tx->ring_size - last_tail + last_head - 1; in lan743x_tx_get_avail_desc()
1355 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx, in lan743x_tx_set_timestamping_mode() argument
1360 tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1362 tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1364 tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1366 tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1369 static int lan743x_tx_frame_start(struct lan743x_tx *tx, in lan743x_tx_frame_start() argument
1381 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_start()
1385 tx->frame_flags |= TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_start()
1386 tx->frame_first = tx->last_tail; in lan743x_tx_frame_start()
1387 tx->frame_tail = tx->frame_first; in lan743x_tx_frame_start()
1389 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_start()
1390 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_start()
1406 tx->frame_data0 = (first_buffer_length & in lan743x_tx_frame_start()
1412 tx->frame_data0 |= TX_DESC_DATA0_TSE_; in lan743x_tx_frame_start()
1415 tx->frame_data0 |= TX_DESC_DATA0_ICE_ | in lan743x_tx_frame_start()
1423 static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx, in lan743x_tx_frame_add_lso() argument
1434 tx->frame_data0 |= TX_DESC_DATA0_EXT_; in lan743x_tx_frame_add_lso()
1436 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_add_lso()
1437 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_add_lso()
1439 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1440 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_lso()
1443 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_lso()
1444 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1445 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1457 tx->frame_data0 = (frame_length & TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_) | in lan743x_tx_frame_add_lso()
1464 static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx, in lan743x_tx_frame_add_fragment() argument
1473 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_add_fragment()
1483 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1484 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_fragment()
1487 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_fragment()
1488 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1489 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1497 desc_index = tx->frame_first; in lan743x_tx_frame_add_fragment()
1498 while (desc_index != tx->frame_tail) { in lan743x_tx_frame_add_fragment()
1499 lan743x_tx_release_desc(tx, desc_index, true); in lan743x_tx_frame_add_fragment()
1500 desc_index = lan743x_tx_next_index(tx, desc_index); in lan743x_tx_frame_add_fragment()
1503 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_add_fragment()
1504 tx->frame_first = 0; in lan743x_tx_frame_add_fragment()
1505 tx->frame_data0 = 0; in lan743x_tx_frame_add_fragment()
1506 tx->frame_tail = 0; in lan743x_tx_frame_add_fragment()
1521 tx->frame_data0 = (fragment_length & TX_DESC_DATA0_BUF_LENGTH_MASK_) | in lan743x_tx_frame_add_fragment()
1529 static void lan743x_tx_frame_end(struct lan743x_tx *tx, in lan743x_tx_frame_end() argument
1539 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_end()
1543 if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) == in lan743x_tx_frame_end()
1545 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_end()
1546 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_end()
1549 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_end()
1550 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_end()
1557 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_end()
1558 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_end()
1559 tx->last_tail = tx->frame_tail; in lan743x_tx_frame_end()
1563 if (tx->vector_flags & LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1565 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1569 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_frame_end()
1570 tx_tail_flags | tx->frame_tail); in lan743x_tx_frame_end()
1571 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_end()
1574 static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, in lan743x_tx_xmit_frame() argument
1588 required_number_of_descriptors = lan743x_tx_get_desc_cnt(tx, skb); in lan743x_tx_xmit_frame()
1590 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1592 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_xmit_frame()
1593 if (required_number_of_descriptors > (tx->ring_size - 1)) { in lan743x_tx_xmit_frame()
1597 tx->overflow_skb = skb; in lan743x_tx_xmit_frame()
1598 netif_stop_queue(tx->adapter->netdev); in lan743x_tx_xmit_frame()
1605 (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) && in lan743x_tx_xmit_frame()
1606 (lan743x_ptp_request_tx_timestamp(tx->adapter))) { in lan743x_tx_xmit_frame()
1609 if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC) in lan743x_tx_xmit_frame()
1622 if (lan743x_tx_frame_start(tx, in lan743x_tx_xmit_frame()
1632 lan743x_tx_frame_add_lso(tx, frame_length, nr_frags); in lan743x_tx_xmit_frame()
1640 if (lan743x_tx_frame_add_fragment(tx, frag, frame_length)) { in lan743x_tx_xmit_frame()
1652 lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync); in lan743x_tx_xmit_frame()
1655 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1661 struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); in lan743x_tx_napi_poll() local
1662 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_napi_poll()
1667 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_napi_poll()
1669 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) in lan743x_tx_napi_poll()
1671 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1674 lan743x_tx_release_completed_descriptors(tx); in lan743x_tx_napi_poll()
1676 if (tx->overflow_skb) { in lan743x_tx_napi_poll()
1677 if (lan743x_tx_get_desc_cnt(tx, tx->overflow_skb) <= in lan743x_tx_napi_poll()
1678 lan743x_tx_get_avail_desc(tx)) in lan743x_tx_napi_poll()
1684 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1688 lan743x_tx_xmit_frame(tx, tx->overflow_skb); in lan743x_tx_napi_poll()
1689 tx->overflow_skb = NULL; in lan743x_tx_napi_poll()
1698 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_napi_poll()
1705 static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx) in lan743x_tx_ring_cleanup() argument
1707 if (tx->head_cpu_ptr) { in lan743x_tx_ring_cleanup()
1708 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1709 sizeof(*tx->head_cpu_ptr), tx->head_cpu_ptr, in lan743x_tx_ring_cleanup()
1710 tx->head_dma_ptr); in lan743x_tx_ring_cleanup()
1711 tx->head_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1712 tx->head_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1714 kfree(tx->buffer_info); in lan743x_tx_ring_cleanup()
1715 tx->buffer_info = NULL; in lan743x_tx_ring_cleanup()
1717 if (tx->ring_cpu_ptr) { in lan743x_tx_ring_cleanup()
1718 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1719 tx->ring_allocation_size, tx->ring_cpu_ptr, in lan743x_tx_ring_cleanup()
1720 tx->ring_dma_ptr); in lan743x_tx_ring_cleanup()
1721 tx->ring_allocation_size = 0; in lan743x_tx_ring_cleanup()
1722 tx->ring_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1723 tx->ring_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1725 tx->ring_size = 0; in lan743x_tx_ring_cleanup()
1728 static int lan743x_tx_ring_init(struct lan743x_tx *tx) in lan743x_tx_ring_init() argument
1735 tx->ring_size = LAN743X_TX_RING_SIZE; in lan743x_tx_ring_init()
1736 if (tx->ring_size & ~TX_CFG_B_TX_RING_LEN_MASK_) { in lan743x_tx_ring_init()
1740 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1742 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1744 dev_warn(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1750 ring_allocation_size = ALIGN(tx->ring_size * in lan743x_tx_ring_init()
1754 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1761 tx->ring_allocation_size = ring_allocation_size; in lan743x_tx_ring_init()
1762 tx->ring_cpu_ptr = (struct lan743x_tx_descriptor *)cpu_ptr; in lan743x_tx_ring_init()
1763 tx->ring_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1765 cpu_ptr = kcalloc(tx->ring_size, sizeof(*tx->buffer_info), GFP_KERNEL); in lan743x_tx_ring_init()
1770 tx->buffer_info = (struct lan743x_tx_buffer_info *)cpu_ptr; in lan743x_tx_ring_init()
1772 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1773 sizeof(*tx->head_cpu_ptr), &dma_ptr, in lan743x_tx_ring_init()
1780 tx->head_cpu_ptr = cpu_ptr; in lan743x_tx_ring_init()
1781 tx->head_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1782 if (tx->head_dma_ptr & 0x3) { in lan743x_tx_ring_init()
1790 lan743x_tx_ring_cleanup(tx); in lan743x_tx_ring_init()
1794 static void lan743x_tx_close(struct lan743x_tx *tx) in lan743x_tx_close() argument
1796 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_close()
1800 DMAC_CMD_STOP_T_(tx->channel_number)); in lan743x_tx_close()
1801 lan743x_dmac_tx_wait_till_stopped(adapter, tx->channel_number); in lan743x_tx_close()
1805 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_close()
1807 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_close()
1808 napi_disable(&tx->napi); in lan743x_tx_close()
1809 netif_napi_del(&tx->napi); in lan743x_tx_close()
1812 FCT_TX_CTL_DIS_(tx->channel_number)); in lan743x_tx_close()
1814 FCT_TX_CTL_EN_(tx->channel_number), in lan743x_tx_close()
1817 lan743x_tx_release_all_descriptors(tx); in lan743x_tx_close()
1819 if (tx->overflow_skb) { in lan743x_tx_close()
1820 dev_kfree_skb(tx->overflow_skb); in lan743x_tx_close()
1821 tx->overflow_skb = NULL; in lan743x_tx_close()
1824 lan743x_tx_ring_cleanup(tx); in lan743x_tx_close()
1827 static int lan743x_tx_open(struct lan743x_tx *tx) in lan743x_tx_open() argument
1833 adapter = tx->adapter; in lan743x_tx_open()
1834 ret = lan743x_tx_ring_init(tx); in lan743x_tx_open()
1840 FCT_TX_CTL_RESET_(tx->channel_number)); in lan743x_tx_open()
1842 FCT_TX_CTL_RESET_(tx->channel_number), in lan743x_tx_open()
1847 FCT_TX_CTL_EN_(tx->channel_number)); in lan743x_tx_open()
1851 DMAC_CMD_TX_SWR_(tx->channel_number)); in lan743x_tx_open()
1853 DMAC_CMD_TX_SWR_(tx->channel_number), in lan743x_tx_open()
1858 TX_BASE_ADDRH(tx->channel_number), in lan743x_tx_open()
1859 DMA_ADDR_HIGH32(tx->ring_dma_ptr)); in lan743x_tx_open()
1861 TX_BASE_ADDRL(tx->channel_number), in lan743x_tx_open()
1862 DMA_ADDR_LOW32(tx->ring_dma_ptr)); in lan743x_tx_open()
1865 data = lan743x_csr_read(adapter, TX_CFG_B(tx->channel_number)); in lan743x_tx_open()
1867 data |= ((tx->ring_size) & TX_CFG_B_TX_RING_LEN_MASK_); in lan743x_tx_open()
1870 lan743x_csr_write(adapter, TX_CFG_B(tx->channel_number), data); in lan743x_tx_open()
1880 lan743x_csr_write(adapter, TX_CFG_A(tx->channel_number), data); in lan743x_tx_open()
1884 TX_HEAD_WRITEBACK_ADDRH(tx->channel_number), in lan743x_tx_open()
1885 DMA_ADDR_HIGH32(tx->head_dma_ptr)); in lan743x_tx_open()
1887 TX_HEAD_WRITEBACK_ADDRL(tx->channel_number), in lan743x_tx_open()
1888 DMA_ADDR_LOW32(tx->head_dma_ptr)); in lan743x_tx_open()
1891 tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number)); in lan743x_tx_open()
1894 tx->last_tail = 0; in lan743x_tx_open()
1895 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_open()
1896 (u32)(tx->last_tail)); in lan743x_tx_open()
1897 tx->vector_flags = lan743x_intr_get_vector_flags(adapter, in lan743x_tx_open()
1899 (tx->channel_number)); in lan743x_tx_open()
1901 &tx->napi, lan743x_tx_napi_poll, in lan743x_tx_open()
1902 tx->ring_size - 1); in lan743x_tx_open()
1903 napi_enable(&tx->napi); in lan743x_tx_open()
1906 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR) in lan743x_tx_open()
1908 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR) in lan743x_tx_open()
1910 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C) in lan743x_tx_open()
1912 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C) in lan743x_tx_open()
1914 lan743x_csr_write(adapter, TX_CFG_C(tx->channel_number), data); in lan743x_tx_open()
1916 if (!(tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET)) in lan743x_tx_open()
1918 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_open()
1920 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_open()
1924 DMAC_CMD_START_T_(tx->channel_number)); in lan743x_tx_open()
2500 lan743x_tx_close(&adapter->tx[0]); in lan743x_netdev_close()
2546 ret = lan743x_tx_open(&adapter->tx[0]); in lan743x_netdev_open()
2579 return lan743x_tx_xmit_frame(&adapter->tx[0], skb); in lan743x_netdev_xmit_frame()
2706 struct lan743x_tx *tx; in lan743x_hardware_init() local
2740 tx = &adapter->tx[0]; in lan743x_hardware_init()
2741 tx->adapter = adapter; in lan743x_hardware_init()
2742 tx->channel_number = 0; in lan743x_hardware_init()
2743 spin_lock_init(&tx->ring_lock); in lan743x_hardware_init()