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()
1270 static void lan743x_tx_release_desc(struct lan743x_tx *tx, in lan743x_tx_release_desc() argument
1278 descriptor = &tx->ring_cpu_ptr[descriptor_index]; in lan743x_tx_release_desc()
1279 buffer_info = &tx->buffer_info[descriptor_index]; in lan743x_tx_release_desc()
1294 dma_unmap_page(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1299 dma_unmap_single(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1316 lan743x_ptp_unrequest_tx_timestamp(tx->adapter); in lan743x_tx_release_desc()
1321 lan743x_ptp_tx_timestamp_skb(tx->adapter, in lan743x_tx_release_desc()
1336 static int lan743x_tx_next_index(struct lan743x_tx *tx, int index) in lan743x_tx_next_index() argument
1338 return ((++index) % tx->ring_size); in lan743x_tx_next_index()
1341 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_completed_descriptors() argument
1343 while ((*tx->head_cpu_ptr) != (tx->last_head)) { in lan743x_tx_release_completed_descriptors()
1344 lan743x_tx_release_desc(tx, tx->last_head, false); in lan743x_tx_release_completed_descriptors()
1345 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_completed_descriptors()
1349 static void lan743x_tx_release_all_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_all_descriptors() argument
1353 original_head = tx->last_head; in lan743x_tx_release_all_descriptors()
1355 lan743x_tx_release_desc(tx, tx->last_head, true); in lan743x_tx_release_all_descriptors()
1356 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_all_descriptors()
1357 } while (tx->last_head != original_head); in lan743x_tx_release_all_descriptors()
1358 memset(tx->ring_cpu_ptr, 0, in lan743x_tx_release_all_descriptors()
1359 sizeof(*tx->ring_cpu_ptr) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1360 memset(tx->buffer_info, 0, in lan743x_tx_release_all_descriptors()
1361 sizeof(*tx->buffer_info) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1364 static int lan743x_tx_get_desc_cnt(struct lan743x_tx *tx, in lan743x_tx_get_desc_cnt() argument
1377 static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx) in lan743x_tx_get_avail_desc() argument
1379 int last_head = tx->last_head; in lan743x_tx_get_avail_desc()
1380 int last_tail = tx->last_tail; in lan743x_tx_get_avail_desc()
1383 return tx->ring_size - last_tail + last_head - 1; in lan743x_tx_get_avail_desc()
1388 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx, in lan743x_tx_set_timestamping_mode() argument
1393 tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1395 tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1397 tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1399 tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1402 static int lan743x_tx_frame_start(struct lan743x_tx *tx, in lan743x_tx_frame_start() argument
1410 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_start()
1414 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_start()
1418 tx->frame_flags |= TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_start()
1419 tx->frame_first = tx->last_tail; in lan743x_tx_frame_start()
1420 tx->frame_tail = tx->frame_first; in lan743x_tx_frame_start()
1422 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_start()
1423 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_start()
1439 tx->frame_data0 = (first_buffer_length & in lan743x_tx_frame_start()
1445 tx->frame_data0 |= TX_DESC_DATA0_TSE_; in lan743x_tx_frame_start()
1448 tx->frame_data0 |= TX_DESC_DATA0_ICE_ | in lan743x_tx_frame_start()
1456 static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx, in lan743x_tx_frame_add_lso() argument
1461 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_add_lso()
1467 tx->frame_data0 |= TX_DESC_DATA0_EXT_; in lan743x_tx_frame_add_lso()
1469 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_add_lso()
1470 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_add_lso()
1472 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1473 tx_descriptor->data0 = tx->frame_data0; in lan743x_tx_frame_add_lso()
1476 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_lso()
1477 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1478 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1490 tx->frame_data0 = (frame_length & TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_) | in lan743x_tx_frame_add_lso()
1497 static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx, in lan743x_tx_frame_add_fragment() argument
1502 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_add_fragment()
1506 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_add_fragment()
1516 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1517 tx_descriptor->data0 = tx->frame_data0; in lan743x_tx_frame_add_fragment()
1520 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_fragment()
1521 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1522 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1530 desc_index = tx->frame_first; in lan743x_tx_frame_add_fragment()
1531 while (desc_index != tx->frame_tail) { in lan743x_tx_frame_add_fragment()
1532 lan743x_tx_release_desc(tx, desc_index, true); in lan743x_tx_frame_add_fragment()
1533 desc_index = lan743x_tx_next_index(tx, desc_index); in lan743x_tx_frame_add_fragment()
1536 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_add_fragment()
1537 tx->frame_first = 0; in lan743x_tx_frame_add_fragment()
1538 tx->frame_data0 = 0; in lan743x_tx_frame_add_fragment()
1539 tx->frame_tail = 0; in lan743x_tx_frame_add_fragment()
1554 tx->frame_data0 = (fragment_length & TX_DESC_DATA0_BUF_LENGTH_MASK_) | in lan743x_tx_frame_add_fragment()
1562 static void lan743x_tx_frame_end(struct lan743x_tx *tx, in lan743x_tx_frame_end() argument
1568 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_end()
1572 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_end()
1576 if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) == in lan743x_tx_frame_end()
1578 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_end()
1579 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_end()
1582 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_end()
1583 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_end()
1590 tx_descriptor->data0 = tx->frame_data0; in lan743x_tx_frame_end()
1591 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_end()
1592 tx->last_tail = tx->frame_tail; in lan743x_tx_frame_end()
1596 if (tx->vector_flags & LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1598 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1602 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_frame_end()
1603 tx_tail_flags | tx->frame_tail); in lan743x_tx_frame_end()
1604 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_end()
1607 static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, in lan743x_tx_xmit_frame() argument
1621 required_number_of_descriptors = lan743x_tx_get_desc_cnt(tx, skb); in lan743x_tx_xmit_frame()
1623 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1625 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_xmit_frame()
1626 if (required_number_of_descriptors > (tx->ring_size - 1)) { in lan743x_tx_xmit_frame()
1630 tx->overflow_skb = skb; in lan743x_tx_xmit_frame()
1631 netif_stop_queue(tx->adapter->netdev); in lan743x_tx_xmit_frame()
1638 (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) && in lan743x_tx_xmit_frame()
1639 (lan743x_ptp_request_tx_timestamp(tx->adapter))) { in lan743x_tx_xmit_frame()
1642 if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC) in lan743x_tx_xmit_frame()
1655 if (lan743x_tx_frame_start(tx, in lan743x_tx_xmit_frame()
1665 lan743x_tx_frame_add_lso(tx, frame_length, nr_frags); in lan743x_tx_xmit_frame()
1673 if (lan743x_tx_frame_add_fragment(tx, frag, frame_length)) { in lan743x_tx_xmit_frame()
1685 lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync); in lan743x_tx_xmit_frame()
1688 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1694 struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); in lan743x_tx_napi_poll() local
1695 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_napi_poll()
1700 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_napi_poll()
1702 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) in lan743x_tx_napi_poll()
1704 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1706 /* clean up tx ring */ in lan743x_tx_napi_poll()
1707 lan743x_tx_release_completed_descriptors(tx); in lan743x_tx_napi_poll()
1709 if (tx->overflow_skb) { in lan743x_tx_napi_poll()
1710 if (lan743x_tx_get_desc_cnt(tx, tx->overflow_skb) <= in lan743x_tx_napi_poll()
1711 lan743x_tx_get_avail_desc(tx)) in lan743x_tx_napi_poll()
1717 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1721 lan743x_tx_xmit_frame(tx, tx->overflow_skb); in lan743x_tx_napi_poll()
1722 tx->overflow_skb = NULL; in lan743x_tx_napi_poll()
1731 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_napi_poll()
1738 static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx) in lan743x_tx_ring_cleanup() argument
1740 if (tx->head_cpu_ptr) { in lan743x_tx_ring_cleanup()
1741 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1742 sizeof(*tx->head_cpu_ptr), tx->head_cpu_ptr, in lan743x_tx_ring_cleanup()
1743 tx->head_dma_ptr); in lan743x_tx_ring_cleanup()
1744 tx->head_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1745 tx->head_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1747 kfree(tx->buffer_info); in lan743x_tx_ring_cleanup()
1748 tx->buffer_info = NULL; in lan743x_tx_ring_cleanup()
1750 if (tx->ring_cpu_ptr) { in lan743x_tx_ring_cleanup()
1751 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1752 tx->ring_allocation_size, tx->ring_cpu_ptr, in lan743x_tx_ring_cleanup()
1753 tx->ring_dma_ptr); in lan743x_tx_ring_cleanup()
1754 tx->ring_allocation_size = 0; in lan743x_tx_ring_cleanup()
1755 tx->ring_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1756 tx->ring_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1758 tx->ring_size = 0; in lan743x_tx_ring_cleanup()
1761 static int lan743x_tx_ring_init(struct lan743x_tx *tx) in lan743x_tx_ring_init() argument
1768 tx->ring_size = LAN743X_TX_RING_SIZE; in lan743x_tx_ring_init()
1769 if (tx->ring_size & ~TX_CFG_B_TX_RING_LEN_MASK_) { in lan743x_tx_ring_init()
1773 ring_allocation_size = ALIGN(tx->ring_size * in lan743x_tx_ring_init()
1777 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1784 tx->ring_allocation_size = ring_allocation_size; in lan743x_tx_ring_init()
1785 tx->ring_cpu_ptr = (struct lan743x_tx_descriptor *)cpu_ptr; in lan743x_tx_ring_init()
1786 tx->ring_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1788 cpu_ptr = kcalloc(tx->ring_size, sizeof(*tx->buffer_info), GFP_KERNEL); in lan743x_tx_ring_init()
1793 tx->buffer_info = (struct lan743x_tx_buffer_info *)cpu_ptr; in lan743x_tx_ring_init()
1795 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1796 sizeof(*tx->head_cpu_ptr), &dma_ptr, in lan743x_tx_ring_init()
1803 tx->head_cpu_ptr = cpu_ptr; in lan743x_tx_ring_init()
1804 tx->head_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1805 if (tx->head_dma_ptr & 0x3) { in lan743x_tx_ring_init()
1813 lan743x_tx_ring_cleanup(tx); in lan743x_tx_ring_init()
1817 static void lan743x_tx_close(struct lan743x_tx *tx) in lan743x_tx_close() argument
1819 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_close()
1823 DMAC_CMD_STOP_T_(tx->channel_number)); in lan743x_tx_close()
1824 lan743x_dmac_tx_wait_till_stopped(adapter, tx->channel_number); in lan743x_tx_close()
1828 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_close()
1830 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_close()
1831 napi_disable(&tx->napi); in lan743x_tx_close()
1832 netif_napi_del(&tx->napi); in lan743x_tx_close()
1835 FCT_TX_CTL_DIS_(tx->channel_number)); in lan743x_tx_close()
1837 FCT_TX_CTL_EN_(tx->channel_number), in lan743x_tx_close()
1840 lan743x_tx_release_all_descriptors(tx); in lan743x_tx_close()
1842 if (tx->overflow_skb) { in lan743x_tx_close()
1843 dev_kfree_skb(tx->overflow_skb); in lan743x_tx_close()
1844 tx->overflow_skb = NULL; in lan743x_tx_close()
1847 lan743x_tx_ring_cleanup(tx); in lan743x_tx_close()
1850 static int lan743x_tx_open(struct lan743x_tx *tx) in lan743x_tx_open() argument
1856 adapter = tx->adapter; in lan743x_tx_open()
1857 ret = lan743x_tx_ring_init(tx); in lan743x_tx_open()
1863 FCT_TX_CTL_RESET_(tx->channel_number)); in lan743x_tx_open()
1865 FCT_TX_CTL_RESET_(tx->channel_number), in lan743x_tx_open()
1870 FCT_TX_CTL_EN_(tx->channel_number)); in lan743x_tx_open()
1872 /* reset tx channel */ in lan743x_tx_open()
1874 DMAC_CMD_TX_SWR_(tx->channel_number)); in lan743x_tx_open()
1876 DMAC_CMD_TX_SWR_(tx->channel_number), in lan743x_tx_open()
1881 TX_BASE_ADDRH(tx->channel_number), in lan743x_tx_open()
1882 DMA_ADDR_HIGH32(tx->ring_dma_ptr)); in lan743x_tx_open()
1884 TX_BASE_ADDRL(tx->channel_number), in lan743x_tx_open()
1885 DMA_ADDR_LOW32(tx->ring_dma_ptr)); in lan743x_tx_open()
1888 data = lan743x_csr_read(adapter, TX_CFG_B(tx->channel_number)); in lan743x_tx_open()
1890 data |= ((tx->ring_size) & TX_CFG_B_TX_RING_LEN_MASK_); in lan743x_tx_open()
1893 lan743x_csr_write(adapter, TX_CFG_B(tx->channel_number), data); in lan743x_tx_open()
1903 lan743x_csr_write(adapter, TX_CFG_A(tx->channel_number), data); in lan743x_tx_open()
1907 TX_HEAD_WRITEBACK_ADDRH(tx->channel_number), in lan743x_tx_open()
1908 DMA_ADDR_HIGH32(tx->head_dma_ptr)); in lan743x_tx_open()
1910 TX_HEAD_WRITEBACK_ADDRL(tx->channel_number), in lan743x_tx_open()
1911 DMA_ADDR_LOW32(tx->head_dma_ptr)); in lan743x_tx_open()
1914 tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number)); in lan743x_tx_open()
1917 tx->last_tail = 0; in lan743x_tx_open()
1918 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_open()
1919 (u32)(tx->last_tail)); in lan743x_tx_open()
1920 tx->vector_flags = lan743x_intr_get_vector_flags(adapter, in lan743x_tx_open()
1922 (tx->channel_number)); in lan743x_tx_open()
1924 &tx->napi, lan743x_tx_napi_poll, in lan743x_tx_open()
1925 tx->ring_size - 1); in lan743x_tx_open()
1926 napi_enable(&tx->napi); in lan743x_tx_open()
1929 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR) in lan743x_tx_open()
1931 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR) in lan743x_tx_open()
1933 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C) in lan743x_tx_open()
1935 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C) in lan743x_tx_open()
1937 lan743x_csr_write(adapter, TX_CFG_C(tx->channel_number), data); in lan743x_tx_open()
1939 if (!(tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET)) in lan743x_tx_open()
1941 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_open()
1943 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_open()
1947 DMAC_CMD_START_T_(tx->channel_number)); in lan743x_tx_open()
2522 lan743x_tx_close(&adapter->tx[0]); in lan743x_netdev_close()
2568 ret = lan743x_tx_open(&adapter->tx[0]); in lan743x_netdev_open()
2601 return lan743x_tx_xmit_frame(&adapter->tx[0], skb); in lan743x_netdev_xmit_frame()
2728 struct lan743x_tx *tx; in lan743x_hardware_init() local
2762 tx = &adapter->tx[0]; in lan743x_hardware_init()
2763 tx->adapter = adapter; in lan743x_hardware_init()
2764 tx->channel_number = 0; in lan743x_hardware_init()
2765 spin_lock_init(&tx->ring_lock); in lan743x_hardware_init()