Lines Matching refs:tx
167 struct lan743x_tx *tx = context; in lan743x_tx_isr() local
168 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_isr()
174 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
177 if (int_sts & INT_BIT_DMA_TX_(tx->channel_number)) { in lan743x_tx_isr()
178 u32 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_isr()
195 napi_schedule(&tx->napi); in lan743x_tx_isr()
203 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
270 lan743x_tx_isr(&adapter->tx[channel], in lan743x_intr_shared_isr()
614 &adapter->tx[index]); in lan743x_intr_open()
1250 static void lan743x_tx_release_desc(struct lan743x_tx *tx, in lan743x_tx_release_desc() argument
1258 descriptor = &tx->ring_cpu_ptr[descriptor_index]; in lan743x_tx_release_desc()
1259 buffer_info = &tx->buffer_info[descriptor_index]; in lan743x_tx_release_desc()
1274 dma_unmap_page(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1279 dma_unmap_single(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1296 lan743x_ptp_unrequest_tx_timestamp(tx->adapter); in lan743x_tx_release_desc()
1301 lan743x_ptp_tx_timestamp_skb(tx->adapter, in lan743x_tx_release_desc()
1316 static int lan743x_tx_next_index(struct lan743x_tx *tx, int index) in lan743x_tx_next_index() argument
1318 return ((++index) % tx->ring_size); in lan743x_tx_next_index()
1321 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_completed_descriptors() argument
1323 while (le32_to_cpu(*tx->head_cpu_ptr) != (tx->last_head)) { in lan743x_tx_release_completed_descriptors()
1324 lan743x_tx_release_desc(tx, tx->last_head, false); in lan743x_tx_release_completed_descriptors()
1325 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_completed_descriptors()
1329 static void lan743x_tx_release_all_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_all_descriptors() argument
1333 original_head = tx->last_head; in lan743x_tx_release_all_descriptors()
1335 lan743x_tx_release_desc(tx, tx->last_head, true); in lan743x_tx_release_all_descriptors()
1336 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_all_descriptors()
1337 } while (tx->last_head != original_head); in lan743x_tx_release_all_descriptors()
1338 memset(tx->ring_cpu_ptr, 0, in lan743x_tx_release_all_descriptors()
1339 sizeof(*tx->ring_cpu_ptr) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1340 memset(tx->buffer_info, 0, in lan743x_tx_release_all_descriptors()
1341 sizeof(*tx->buffer_info) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1344 static int lan743x_tx_get_desc_cnt(struct lan743x_tx *tx, in lan743x_tx_get_desc_cnt() argument
1357 static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx) in lan743x_tx_get_avail_desc() argument
1359 int last_head = tx->last_head; in lan743x_tx_get_avail_desc()
1360 int last_tail = tx->last_tail; in lan743x_tx_get_avail_desc()
1363 return tx->ring_size - last_tail + last_head - 1; in lan743x_tx_get_avail_desc()
1368 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx, in lan743x_tx_set_timestamping_mode() argument
1373 tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1375 tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1377 tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1379 tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1382 static int lan743x_tx_frame_start(struct lan743x_tx *tx, in lan743x_tx_frame_start() argument
1394 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_start()
1398 tx->frame_flags |= TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_start()
1399 tx->frame_first = tx->last_tail; in lan743x_tx_frame_start()
1400 tx->frame_tail = tx->frame_first; in lan743x_tx_frame_start()
1402 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_start()
1403 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_start()
1419 tx->frame_data0 = (first_buffer_length & in lan743x_tx_frame_start()
1425 tx->frame_data0 |= TX_DESC_DATA0_TSE_; in lan743x_tx_frame_start()
1428 tx->frame_data0 |= TX_DESC_DATA0_ICE_ | in lan743x_tx_frame_start()
1436 static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx, in lan743x_tx_frame_add_lso() argument
1447 tx->frame_data0 |= TX_DESC_DATA0_EXT_; in lan743x_tx_frame_add_lso()
1449 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_add_lso()
1450 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_add_lso()
1452 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1453 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_lso()
1456 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_lso()
1457 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1458 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1470 tx->frame_data0 = (frame_length & TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_) | in lan743x_tx_frame_add_lso()
1477 static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx, in lan743x_tx_frame_add_fragment() argument
1486 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_add_fragment()
1496 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1497 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_fragment()
1500 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_fragment()
1501 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1502 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1510 desc_index = tx->frame_first; in lan743x_tx_frame_add_fragment()
1511 while (desc_index != tx->frame_tail) { in lan743x_tx_frame_add_fragment()
1512 lan743x_tx_release_desc(tx, desc_index, true); in lan743x_tx_frame_add_fragment()
1513 desc_index = lan743x_tx_next_index(tx, desc_index); in lan743x_tx_frame_add_fragment()
1516 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_add_fragment()
1517 tx->frame_first = 0; in lan743x_tx_frame_add_fragment()
1518 tx->frame_data0 = 0; in lan743x_tx_frame_add_fragment()
1519 tx->frame_tail = 0; in lan743x_tx_frame_add_fragment()
1534 tx->frame_data0 = (fragment_length & TX_DESC_DATA0_BUF_LENGTH_MASK_) | in lan743x_tx_frame_add_fragment()
1542 static void lan743x_tx_frame_end(struct lan743x_tx *tx, in lan743x_tx_frame_end() argument
1552 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_end()
1556 if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) == in lan743x_tx_frame_end()
1558 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_end()
1559 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_end()
1562 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_end()
1563 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_end()
1570 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_end()
1571 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_end()
1572 tx->last_tail = tx->frame_tail; in lan743x_tx_frame_end()
1576 if (tx->vector_flags & LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1578 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
1582 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_frame_end()
1583 tx_tail_flags | tx->frame_tail); in lan743x_tx_frame_end()
1584 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_end()
1587 static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, in lan743x_tx_xmit_frame() argument
1601 required_number_of_descriptors = lan743x_tx_get_desc_cnt(tx, skb); in lan743x_tx_xmit_frame()
1603 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1605 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_xmit_frame()
1606 if (required_number_of_descriptors > (tx->ring_size - 1)) { in lan743x_tx_xmit_frame()
1610 tx->overflow_skb = skb; in lan743x_tx_xmit_frame()
1611 netif_stop_queue(tx->adapter->netdev); in lan743x_tx_xmit_frame()
1618 (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) && in lan743x_tx_xmit_frame()
1619 (lan743x_ptp_request_tx_timestamp(tx->adapter))) { in lan743x_tx_xmit_frame()
1622 if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC) in lan743x_tx_xmit_frame()
1635 if (lan743x_tx_frame_start(tx, in lan743x_tx_xmit_frame()
1645 lan743x_tx_frame_add_lso(tx, frame_length, nr_frags); in lan743x_tx_xmit_frame()
1653 if (lan743x_tx_frame_add_fragment(tx, frag, frame_length)) { in lan743x_tx_xmit_frame()
1665 lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync); in lan743x_tx_xmit_frame()
1668 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
1674 struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); in lan743x_tx_napi_poll() local
1675 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_napi_poll()
1680 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_napi_poll()
1682 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) in lan743x_tx_napi_poll()
1684 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1687 lan743x_tx_release_completed_descriptors(tx); in lan743x_tx_napi_poll()
1689 if (tx->overflow_skb) { in lan743x_tx_napi_poll()
1690 if (lan743x_tx_get_desc_cnt(tx, tx->overflow_skb) <= in lan743x_tx_napi_poll()
1691 lan743x_tx_get_avail_desc(tx)) in lan743x_tx_napi_poll()
1697 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
1701 lan743x_tx_xmit_frame(tx, tx->overflow_skb); in lan743x_tx_napi_poll()
1702 tx->overflow_skb = NULL; in lan743x_tx_napi_poll()
1711 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_napi_poll()
1718 static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx) in lan743x_tx_ring_cleanup() argument
1720 if (tx->head_cpu_ptr) { in lan743x_tx_ring_cleanup()
1721 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1722 sizeof(*tx->head_cpu_ptr), tx->head_cpu_ptr, in lan743x_tx_ring_cleanup()
1723 tx->head_dma_ptr); in lan743x_tx_ring_cleanup()
1724 tx->head_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1725 tx->head_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1727 kfree(tx->buffer_info); in lan743x_tx_ring_cleanup()
1728 tx->buffer_info = NULL; in lan743x_tx_ring_cleanup()
1730 if (tx->ring_cpu_ptr) { in lan743x_tx_ring_cleanup()
1731 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
1732 tx->ring_allocation_size, tx->ring_cpu_ptr, in lan743x_tx_ring_cleanup()
1733 tx->ring_dma_ptr); in lan743x_tx_ring_cleanup()
1734 tx->ring_allocation_size = 0; in lan743x_tx_ring_cleanup()
1735 tx->ring_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
1736 tx->ring_dma_ptr = 0; in lan743x_tx_ring_cleanup()
1738 tx->ring_size = 0; in lan743x_tx_ring_cleanup()
1741 static int lan743x_tx_ring_init(struct lan743x_tx *tx) in lan743x_tx_ring_init() argument
1748 tx->ring_size = LAN743X_TX_RING_SIZE; in lan743x_tx_ring_init()
1749 if (tx->ring_size & ~TX_CFG_B_TX_RING_LEN_MASK_) { in lan743x_tx_ring_init()
1753 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1755 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1757 dev_warn(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1763 ring_allocation_size = ALIGN(tx->ring_size * in lan743x_tx_ring_init()
1767 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1774 tx->ring_allocation_size = ring_allocation_size; in lan743x_tx_ring_init()
1775 tx->ring_cpu_ptr = (struct lan743x_tx_descriptor *)cpu_ptr; in lan743x_tx_ring_init()
1776 tx->ring_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1778 cpu_ptr = kcalloc(tx->ring_size, sizeof(*tx->buffer_info), GFP_KERNEL); in lan743x_tx_ring_init()
1783 tx->buffer_info = (struct lan743x_tx_buffer_info *)cpu_ptr; in lan743x_tx_ring_init()
1785 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
1786 sizeof(*tx->head_cpu_ptr), &dma_ptr, in lan743x_tx_ring_init()
1793 tx->head_cpu_ptr = cpu_ptr; in lan743x_tx_ring_init()
1794 tx->head_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
1795 if (tx->head_dma_ptr & 0x3) { in lan743x_tx_ring_init()
1803 lan743x_tx_ring_cleanup(tx); in lan743x_tx_ring_init()
1807 static void lan743x_tx_close(struct lan743x_tx *tx) in lan743x_tx_close() argument
1809 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_close()
1813 DMAC_CMD_STOP_T_(tx->channel_number)); in lan743x_tx_close()
1814 lan743x_dmac_tx_wait_till_stopped(adapter, tx->channel_number); in lan743x_tx_close()
1818 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_close()
1820 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_close()
1821 napi_disable(&tx->napi); in lan743x_tx_close()
1822 netif_napi_del(&tx->napi); in lan743x_tx_close()
1825 FCT_TX_CTL_DIS_(tx->channel_number)); in lan743x_tx_close()
1827 FCT_TX_CTL_EN_(tx->channel_number), in lan743x_tx_close()
1830 lan743x_tx_release_all_descriptors(tx); in lan743x_tx_close()
1832 if (tx->overflow_skb) { in lan743x_tx_close()
1833 dev_kfree_skb(tx->overflow_skb); in lan743x_tx_close()
1834 tx->overflow_skb = NULL; in lan743x_tx_close()
1837 lan743x_tx_ring_cleanup(tx); in lan743x_tx_close()
1840 static int lan743x_tx_open(struct lan743x_tx *tx) in lan743x_tx_open() argument
1846 adapter = tx->adapter; in lan743x_tx_open()
1847 ret = lan743x_tx_ring_init(tx); in lan743x_tx_open()
1853 FCT_TX_CTL_RESET_(tx->channel_number)); in lan743x_tx_open()
1855 FCT_TX_CTL_RESET_(tx->channel_number), in lan743x_tx_open()
1860 FCT_TX_CTL_EN_(tx->channel_number)); in lan743x_tx_open()
1864 DMAC_CMD_TX_SWR_(tx->channel_number)); in lan743x_tx_open()
1866 DMAC_CMD_TX_SWR_(tx->channel_number), in lan743x_tx_open()
1871 TX_BASE_ADDRH(tx->channel_number), in lan743x_tx_open()
1872 DMA_ADDR_HIGH32(tx->ring_dma_ptr)); in lan743x_tx_open()
1874 TX_BASE_ADDRL(tx->channel_number), in lan743x_tx_open()
1875 DMA_ADDR_LOW32(tx->ring_dma_ptr)); in lan743x_tx_open()
1878 data = lan743x_csr_read(adapter, TX_CFG_B(tx->channel_number)); in lan743x_tx_open()
1880 data |= ((tx->ring_size) & TX_CFG_B_TX_RING_LEN_MASK_); in lan743x_tx_open()
1883 lan743x_csr_write(adapter, TX_CFG_B(tx->channel_number), data); in lan743x_tx_open()
1893 lan743x_csr_write(adapter, TX_CFG_A(tx->channel_number), data); in lan743x_tx_open()
1897 TX_HEAD_WRITEBACK_ADDRH(tx->channel_number), in lan743x_tx_open()
1898 DMA_ADDR_HIGH32(tx->head_dma_ptr)); in lan743x_tx_open()
1900 TX_HEAD_WRITEBACK_ADDRL(tx->channel_number), in lan743x_tx_open()
1901 DMA_ADDR_LOW32(tx->head_dma_ptr)); in lan743x_tx_open()
1904 tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number)); in lan743x_tx_open()
1907 tx->last_tail = 0; in lan743x_tx_open()
1908 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_open()
1909 (u32)(tx->last_tail)); in lan743x_tx_open()
1910 tx->vector_flags = lan743x_intr_get_vector_flags(adapter, in lan743x_tx_open()
1912 (tx->channel_number)); in lan743x_tx_open()
1914 &tx->napi, lan743x_tx_napi_poll, in lan743x_tx_open()
1915 tx->ring_size - 1); in lan743x_tx_open()
1916 napi_enable(&tx->napi); in lan743x_tx_open()
1919 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR) in lan743x_tx_open()
1921 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR) in lan743x_tx_open()
1923 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C) in lan743x_tx_open()
1925 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C) in lan743x_tx_open()
1927 lan743x_csr_write(adapter, TX_CFG_C(tx->channel_number), data); in lan743x_tx_open()
1929 if (!(tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET)) in lan743x_tx_open()
1931 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_open()
1933 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_open()
1937 DMAC_CMD_START_T_(tx->channel_number)); in lan743x_tx_open()
2513 lan743x_tx_close(&adapter->tx[0]); in lan743x_netdev_close()
2559 ret = lan743x_tx_open(&adapter->tx[0]); in lan743x_netdev_open()
2592 return lan743x_tx_xmit_frame(&adapter->tx[0], skb); in lan743x_netdev_xmit_frame()
2719 struct lan743x_tx *tx; in lan743x_hardware_init() local
2753 tx = &adapter->tx[0]; in lan743x_hardware_init()
2754 tx->adapter = adapter; in lan743x_hardware_init()
2755 tx->channel_number = 0; in lan743x_hardware_init()
2756 spin_lock_init(&tx->ring_lock); in lan743x_hardware_init()