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()
163 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
166 if (int_sts & INT_BIT_DMA_TX_(tx->channel_number)) { in lan743x_tx_isr()
167 u32 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_isr()
184 napi_schedule(&tx->napi); in lan743x_tx_isr()
192 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
259 lan743x_tx_isr(&adapter->tx[channel], in lan743x_intr_shared_isr()
598 /* map TX interrupt to vector */ in lan743x_intr_open()
602 /* Remove TX interrupt from shared mask */ in lan743x_intr_open()
606 &adapter->tx[index]); in lan743x_intr_open()
1212 static void lan743x_tx_release_desc(struct lan743x_tx *tx, in lan743x_tx_release_desc() argument
1220 descriptor = &tx->ring_cpu_ptr[descriptor_index]; in lan743x_tx_release_desc()
1221 buffer_info = &tx->buffer_info[descriptor_index]; in lan743x_tx_release_desc()
1236 dma_unmap_page(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1241 dma_unmap_single(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1258 lan743x_ptp_unrequest_tx_timestamp(tx->adapter); in lan743x_tx_release_desc()
1263 lan743x_ptp_tx_timestamp_skb(tx->adapter, in lan743x_tx_release_desc()
1278 static int lan743x_tx_next_index(struct lan743x_tx *tx, int index) in lan743x_tx_next_index() argument
1280 return ((++index) % tx->ring_size); in lan743x_tx_next_index()
1283 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_completed_descriptors() argument
1285 while ((*tx->head_cpu_ptr) != (tx->last_head)) { in lan743x_tx_release_completed_descriptors()
1286 lan743x_tx_release_desc(tx, tx->last_head, false); in lan743x_tx_release_completed_descriptors()
1287 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_completed_descriptors()
1291 static void lan743x_tx_release_all_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_all_descriptors() argument
1295 original_head = tx->last_head; in lan743x_tx_release_all_descriptors()
1297 lan743x_tx_release_desc(tx, tx->last_head, true); in lan743x_tx_release_all_descriptors()
1298 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_all_descriptors()
1299 } while (tx->last_head != original_head); in lan743x_tx_release_all_descriptors()
1300 memset(tx->ring_cpu_ptr, 0, in lan743x_tx_release_all_descriptors()
1301 sizeof(*tx->ring_cpu_ptr) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1302 memset(tx->buffer_info, 0, in lan743x_tx_release_all_descriptors()
1303 sizeof(*tx->buffer_info) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1306 static int lan743x_tx_get_desc_cnt(struct lan743x_tx *tx, in lan743x_tx_get_desc_cnt() argument
1319 static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx) in lan743x_tx_get_avail_desc() argument
1321 int last_head = tx->last_head; in lan743x_tx_get_avail_desc()
1322 int last_tail = tx->last_tail; in lan743x_tx_get_avail_desc()
1325 return tx->ring_size - last_tail + last_head - 1; in lan743x_tx_get_avail_desc()
1330 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx, in lan743x_tx_set_timestamping_mode() argument
1335 tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1337 tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1339 tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1341 tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1344 static int lan743x_tx_frame_start(struct lan743x_tx *tx, in lan743x_tx_frame_start() argument
1352 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_start()
1356 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_start()
1360 tx->frame_flags |= TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_start()
1361 tx->frame_first = tx->last_tail; in lan743x_tx_frame_start()
1362 tx->frame_tail = tx->frame_first; in lan743x_tx_frame_start()
1364 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_start()
1365 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_start()
1381 tx->frame_data0 = (first_buffer_length & in lan743x_tx_frame_start()
1387 tx->frame_data0 |= TX_DESC_DATA0_TSE_; in lan743x_tx_frame_start()
1390 tx->frame_data0 |= TX_DESC_DATA0_ICE_ | in lan743x_tx_frame_start()
1398 static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx, in lan743x_tx_frame_add_lso() argument
1403 * assuming tx->ring_lock has already been acquired. in lan743x_tx_frame_add_lso()
1409 tx->frame_data0 |= TX_DESC_DATA0_EXT_; in lan743x_tx_frame_add_lso()
1411 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_add_lso()
1412 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_add_lso()
1414 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1415 tx_descriptor->data0 = tx->frame_data0; in lan743x_tx_frame_add_lso()
1418 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_lso()
1419 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1420 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1432 tx->frame_data0 = (frame_length & TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_) | in lan743x_tx_frame_add_lso()
1439 static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx, in lan743x_tx_frame_add_fragment() argument
1444 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_add_fragment()
1448 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_add_fragment()
1458 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1459 tx_descriptor->data0 = tx->frame_data0; in lan743x_tx_frame_add_fragment()
1462 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_fragment()
1463 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1464 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1472 desc_index = tx->frame_first; in lan743x_tx_frame_add_fragment()
1473 while (desc_index != tx->frame_tail) { in lan743x_tx_frame_add_fragment()
1474 lan743x_tx_release_desc(tx, desc_index, true); in lan743x_tx_frame_add_fragment()
1475 desc_index = lan743x_tx_next_index(tx, desc_index); in lan743x_tx_frame_add_fragment()
1478 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_add_fragment()
1479 tx->frame_first = 0; in lan743x_tx_frame_add_fragment()
1480 tx->frame_data0 = 0; in lan743x_tx_frame_add_fragment()
1481 tx->frame_tail = 0; in lan743x_tx_frame_add_fragment()
1496 tx->frame_data0 = (fragment_length & TX_DESC_DATA0_BUF_LENGTH_MASK_) | in lan743x_tx_frame_add_fragment()
1504 static void lan743x_tx_frame_end(struct lan743x_tx *tx, in lan743x_tx_frame_end() argument
1510 * assuming tx->ring_lock has already been acquired in lan743x_tx_frame_end()
1514 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_end()
1518 if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) == in lan743x_tx_frame_end()
1520 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_end()
1521 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_end()
1524 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_end()
1525 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_end()
1532 tx_descriptor->data0 = tx->frame_data0; in lan743x_tx_frame_end()
1533 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_end()
1534 tx->last_tail = tx->frame_tail; in lan743x_tx_frame_end()
1538 if (tx->vector_flags & LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1540 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1544 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_frame_end()
1545 tx_tail_flags | tx->frame_tail); in lan743x_tx_frame_end()
1546 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_end()
1549 static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, in lan743x_tx_xmit_frame() argument
1563 required_number_of_descriptors = lan743x_tx_get_desc_cnt(tx, skb); in lan743x_tx_xmit_frame()
1565 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1567 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_xmit_frame()
1568 if (required_number_of_descriptors > (tx->ring_size - 1)) { in lan743x_tx_xmit_frame()
1572 tx->overflow_skb = skb; in lan743x_tx_xmit_frame()
1573 netif_stop_queue(tx->adapter->netdev); in lan743x_tx_xmit_frame()
1580 (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) && in lan743x_tx_xmit_frame()
1581 (lan743x_ptp_request_tx_timestamp(tx->adapter))) { in lan743x_tx_xmit_frame()
1584 if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC) in lan743x_tx_xmit_frame()
1597 if (lan743x_tx_frame_start(tx, in lan743x_tx_xmit_frame()
1607 lan743x_tx_frame_add_lso(tx, frame_length, nr_frags); in lan743x_tx_xmit_frame()
1616 if (lan743x_tx_frame_add_fragment(tx, frag, frame_length)) { in lan743x_tx_xmit_frame()
1628 lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync); in lan743x_tx_xmit_frame()
1631 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1637 struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); in lan743x_tx_napi_poll() local
1638 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_napi_poll()
1644 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_napi_poll()
1646 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) in lan743x_tx_napi_poll()
1648 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1650 /* clean up tx ring */ in lan743x_tx_napi_poll()
1651 lan743x_tx_release_completed_descriptors(tx); in lan743x_tx_napi_poll()
1653 if (tx->overflow_skb) { in lan743x_tx_napi_poll()
1654 if (lan743x_tx_get_desc_cnt(tx, tx->overflow_skb) <= in lan743x_tx_napi_poll()
1655 lan743x_tx_get_avail_desc(tx)) in lan743x_tx_napi_poll()
1661 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1665 lan743x_tx_xmit_frame(tx, tx->overflow_skb); in lan743x_tx_napi_poll()
1666 tx->overflow_skb = NULL; in lan743x_tx_napi_poll()
1675 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_napi_poll()
1682 static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx) in lan743x_tx_ring_cleanup() argument
1684 if (tx->head_cpu_ptr) { in lan743x_tx_ring_cleanup()
1685 pci_free_consistent(tx->adapter->pdev, in lan743x_tx_ring_cleanup()
1686 sizeof(*tx->head_cpu_ptr), in lan743x_tx_ring_cleanup()
1687 (void *)(tx->head_cpu_ptr), in lan743x_tx_ring_cleanup()
1688 tx->head_dma_ptr); in lan743x_tx_ring_cleanup()
1689 tx->head_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1690 tx->head_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1692 kfree(tx->buffer_info); in lan743x_tx_ring_cleanup()
1693 tx->buffer_info = NULL; in lan743x_tx_ring_cleanup()
1695 if (tx->ring_cpu_ptr) { in lan743x_tx_ring_cleanup()
1696 pci_free_consistent(tx->adapter->pdev, in lan743x_tx_ring_cleanup()
1697 tx->ring_allocation_size, in lan743x_tx_ring_cleanup()
1698 tx->ring_cpu_ptr, in lan743x_tx_ring_cleanup()
1699 tx->ring_dma_ptr); in lan743x_tx_ring_cleanup()
1700 tx->ring_allocation_size = 0; in lan743x_tx_ring_cleanup()
1701 tx->ring_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1702 tx->ring_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1704 tx->ring_size = 0; in lan743x_tx_ring_cleanup()
1707 static int lan743x_tx_ring_init(struct lan743x_tx *tx) in lan743x_tx_ring_init() argument
1714 tx->ring_size = LAN743X_TX_RING_SIZE; in lan743x_tx_ring_init()
1715 if (tx->ring_size & ~TX_CFG_B_TX_RING_LEN_MASK_) { in lan743x_tx_ring_init()
1719 ring_allocation_size = ALIGN(tx->ring_size * in lan743x_tx_ring_init()
1723 cpu_ptr = pci_zalloc_consistent(tx->adapter->pdev, in lan743x_tx_ring_init()
1730 tx->ring_allocation_size = ring_allocation_size; in lan743x_tx_ring_init()
1731 tx->ring_cpu_ptr = (struct lan743x_tx_descriptor *)cpu_ptr; in lan743x_tx_ring_init()
1732 tx->ring_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1734 cpu_ptr = kcalloc(tx->ring_size, sizeof(*tx->buffer_info), GFP_KERNEL); in lan743x_tx_ring_init()
1739 tx->buffer_info = (struct lan743x_tx_buffer_info *)cpu_ptr; in lan743x_tx_ring_init()
1741 cpu_ptr = pci_zalloc_consistent(tx->adapter->pdev, in lan743x_tx_ring_init()
1742 sizeof(*tx->head_cpu_ptr), &dma_ptr); in lan743x_tx_ring_init()
1748 tx->head_cpu_ptr = cpu_ptr; in lan743x_tx_ring_init()
1749 tx->head_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1750 if (tx->head_dma_ptr & 0x3) { in lan743x_tx_ring_init()
1758 lan743x_tx_ring_cleanup(tx); in lan743x_tx_ring_init()
1762 static void lan743x_tx_close(struct lan743x_tx *tx) in lan743x_tx_close() argument
1764 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_close()
1768 DMAC_CMD_STOP_T_(tx->channel_number)); in lan743x_tx_close()
1769 lan743x_dmac_tx_wait_till_stopped(adapter, tx->channel_number); in lan743x_tx_close()
1773 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_close()
1775 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_close()
1776 napi_disable(&tx->napi); in lan743x_tx_close()
1777 netif_napi_del(&tx->napi); in lan743x_tx_close()
1780 FCT_TX_CTL_DIS_(tx->channel_number)); in lan743x_tx_close()
1782 FCT_TX_CTL_EN_(tx->channel_number), in lan743x_tx_close()
1785 lan743x_tx_release_all_descriptors(tx); in lan743x_tx_close()
1787 if (tx->overflow_skb) { in lan743x_tx_close()
1788 dev_kfree_skb(tx->overflow_skb); in lan743x_tx_close()
1789 tx->overflow_skb = NULL; in lan743x_tx_close()
1792 lan743x_tx_ring_cleanup(tx); in lan743x_tx_close()
1795 static int lan743x_tx_open(struct lan743x_tx *tx) in lan743x_tx_open() argument
1801 adapter = tx->adapter; in lan743x_tx_open()
1802 ret = lan743x_tx_ring_init(tx); in lan743x_tx_open()
1808 FCT_TX_CTL_RESET_(tx->channel_number)); in lan743x_tx_open()
1810 FCT_TX_CTL_RESET_(tx->channel_number), in lan743x_tx_open()
1815 FCT_TX_CTL_EN_(tx->channel_number)); in lan743x_tx_open()
1817 /* reset tx channel */ in lan743x_tx_open()
1819 DMAC_CMD_TX_SWR_(tx->channel_number)); in lan743x_tx_open()
1821 DMAC_CMD_TX_SWR_(tx->channel_number), in lan743x_tx_open()
1826 TX_BASE_ADDRH(tx->channel_number), in lan743x_tx_open()
1827 DMA_ADDR_HIGH32(tx->ring_dma_ptr)); in lan743x_tx_open()
1829 TX_BASE_ADDRL(tx->channel_number), in lan743x_tx_open()
1830 DMA_ADDR_LOW32(tx->ring_dma_ptr)); in lan743x_tx_open()
1833 data = lan743x_csr_read(adapter, TX_CFG_B(tx->channel_number)); in lan743x_tx_open()
1835 data |= ((tx->ring_size) & TX_CFG_B_TX_RING_LEN_MASK_); in lan743x_tx_open()
1838 lan743x_csr_write(adapter, TX_CFG_B(tx->channel_number), data); in lan743x_tx_open()
1848 lan743x_csr_write(adapter, TX_CFG_A(tx->channel_number), data); in lan743x_tx_open()
1852 TX_HEAD_WRITEBACK_ADDRH(tx->channel_number), in lan743x_tx_open()
1853 DMA_ADDR_HIGH32(tx->head_dma_ptr)); in lan743x_tx_open()
1855 TX_HEAD_WRITEBACK_ADDRL(tx->channel_number), in lan743x_tx_open()
1856 DMA_ADDR_LOW32(tx->head_dma_ptr)); in lan743x_tx_open()
1859 tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number)); in lan743x_tx_open()
1862 tx->last_tail = 0; in lan743x_tx_open()
1863 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_open()
1864 (u32)(tx->last_tail)); in lan743x_tx_open()
1865 tx->vector_flags = lan743x_intr_get_vector_flags(adapter, in lan743x_tx_open()
1867 (tx->channel_number)); in lan743x_tx_open()
1869 &tx->napi, lan743x_tx_napi_poll, in lan743x_tx_open()
1870 tx->ring_size - 1); in lan743x_tx_open()
1871 napi_enable(&tx->napi); in lan743x_tx_open()
1874 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR) in lan743x_tx_open()
1876 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR) in lan743x_tx_open()
1878 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C) in lan743x_tx_open()
1880 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C) in lan743x_tx_open()
1882 lan743x_csr_write(adapter, TX_CFG_C(tx->channel_number), data); in lan743x_tx_open()
1884 if (!(tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET)) in lan743x_tx_open()
1886 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_open()
1888 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_open()
1892 DMAC_CMD_START_T_(tx->channel_number)); in lan743x_tx_open()
2470 lan743x_tx_close(&adapter->tx[0]); in lan743x_netdev_close()
2516 ret = lan743x_tx_open(&adapter->tx[0]); in lan743x_netdev_open()
2549 return lan743x_tx_xmit_frame(&adapter->tx[0], skb); in lan743x_netdev_xmit_frame()
2676 struct lan743x_tx *tx; in lan743x_hardware_init() local
2711 tx = &adapter->tx[0]; in lan743x_hardware_init()
2712 tx->adapter = adapter; in lan743x_hardware_init()
2713 tx->channel_number = 0; in lan743x_hardware_init()
2714 spin_lock_init(&tx->ring_lock); in lan743x_hardware_init()