Lines Matching refs:tx
216 struct lan743x_tx *tx = context; in lan743x_tx_isr() local
217 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_isr()
223 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
226 if (int_sts & INT_BIT_DMA_TX_(tx->channel_number)) { in lan743x_tx_isr()
227 u32 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_isr()
244 napi_schedule(&tx->napi); in lan743x_tx_isr()
252 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_isr()
319 lan743x_tx_isr(&adapter->tx[channel], in lan743x_intr_shared_isr()
677 &adapter->tx[index]); in lan743x_intr_open()
1747 static void lan743x_tx_release_desc(struct lan743x_tx *tx, in lan743x_tx_release_desc() argument
1755 descriptor = &tx->ring_cpu_ptr[descriptor_index]; in lan743x_tx_release_desc()
1756 buffer_info = &tx->buffer_info[descriptor_index]; in lan743x_tx_release_desc()
1771 dma_unmap_page(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1776 dma_unmap_single(&tx->adapter->pdev->dev, in lan743x_tx_release_desc()
1793 lan743x_ptp_unrequest_tx_timestamp(tx->adapter); in lan743x_tx_release_desc()
1798 lan743x_ptp_tx_timestamp_skb(tx->adapter, in lan743x_tx_release_desc()
1813 static int lan743x_tx_next_index(struct lan743x_tx *tx, int index) in lan743x_tx_next_index() argument
1815 return ((++index) % tx->ring_size); in lan743x_tx_next_index()
1818 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_completed_descriptors() argument
1820 while (le32_to_cpu(*tx->head_cpu_ptr) != (tx->last_head)) { in lan743x_tx_release_completed_descriptors()
1821 lan743x_tx_release_desc(tx, tx->last_head, false); in lan743x_tx_release_completed_descriptors()
1822 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_completed_descriptors()
1826 static void lan743x_tx_release_all_descriptors(struct lan743x_tx *tx) in lan743x_tx_release_all_descriptors() argument
1830 original_head = tx->last_head; in lan743x_tx_release_all_descriptors()
1832 lan743x_tx_release_desc(tx, tx->last_head, true); in lan743x_tx_release_all_descriptors()
1833 tx->last_head = lan743x_tx_next_index(tx, tx->last_head); in lan743x_tx_release_all_descriptors()
1834 } while (tx->last_head != original_head); in lan743x_tx_release_all_descriptors()
1835 memset(tx->ring_cpu_ptr, 0, in lan743x_tx_release_all_descriptors()
1836 sizeof(*tx->ring_cpu_ptr) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1837 memset(tx->buffer_info, 0, in lan743x_tx_release_all_descriptors()
1838 sizeof(*tx->buffer_info) * (tx->ring_size)); in lan743x_tx_release_all_descriptors()
1841 static int lan743x_tx_get_desc_cnt(struct lan743x_tx *tx, in lan743x_tx_get_desc_cnt() argument
1854 static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx) in lan743x_tx_get_avail_desc() argument
1856 int last_head = tx->last_head; in lan743x_tx_get_avail_desc()
1857 int last_tail = tx->last_tail; in lan743x_tx_get_avail_desc()
1860 return tx->ring_size - last_tail + last_head - 1; in lan743x_tx_get_avail_desc()
1865 void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx, in lan743x_tx_set_timestamping_mode() argument
1870 tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1872 tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED; in lan743x_tx_set_timestamping_mode()
1874 tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1876 tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC; in lan743x_tx_set_timestamping_mode()
1879 static int lan743x_tx_frame_start(struct lan743x_tx *tx, in lan743x_tx_frame_start() argument
1891 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_start()
1895 tx->frame_flags |= TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_start()
1896 tx->frame_first = tx->last_tail; in lan743x_tx_frame_start()
1897 tx->frame_tail = tx->frame_first; in lan743x_tx_frame_start()
1899 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_start()
1900 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_start()
1916 tx->frame_data0 = (first_buffer_length & in lan743x_tx_frame_start()
1922 tx->frame_data0 |= TX_DESC_DATA0_TSE_; in lan743x_tx_frame_start()
1925 tx->frame_data0 |= TX_DESC_DATA0_ICE_ | in lan743x_tx_frame_start()
1933 static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx, in lan743x_tx_frame_add_lso() argument
1944 tx->frame_data0 |= TX_DESC_DATA0_EXT_; in lan743x_tx_frame_add_lso()
1946 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_add_lso()
1947 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_add_lso()
1949 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1950 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_lso()
1953 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_lso()
1954 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1955 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_lso()
1967 tx->frame_data0 = (frame_length & TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_) | in lan743x_tx_frame_add_lso()
1974 static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx, in lan743x_tx_frame_add_fragment() argument
1983 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_add_fragment()
1993 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1994 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_add_fragment()
1997 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_add_fragment()
1998 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
1999 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_add_fragment()
2007 desc_index = tx->frame_first; in lan743x_tx_frame_add_fragment()
2008 while (desc_index != tx->frame_tail) { in lan743x_tx_frame_add_fragment()
2009 lan743x_tx_release_desc(tx, desc_index, true); in lan743x_tx_frame_add_fragment()
2010 desc_index = lan743x_tx_next_index(tx, desc_index); in lan743x_tx_frame_add_fragment()
2013 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_add_fragment()
2014 tx->frame_first = 0; in lan743x_tx_frame_add_fragment()
2015 tx->frame_data0 = 0; in lan743x_tx_frame_add_fragment()
2016 tx->frame_tail = 0; in lan743x_tx_frame_add_fragment()
2031 tx->frame_data0 = (fragment_length & TX_DESC_DATA0_BUF_LENGTH_MASK_) | in lan743x_tx_frame_add_fragment()
2039 static void lan743x_tx_frame_end(struct lan743x_tx *tx, in lan743x_tx_frame_end() argument
2049 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_frame_end()
2053 if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) == in lan743x_tx_frame_end()
2055 tx->frame_data0 |= TX_DESC_DATA0_LS_; in lan743x_tx_frame_end()
2056 tx->frame_data0 |= TX_DESC_DATA0_IOC_; in lan743x_tx_frame_end()
2059 tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail]; in lan743x_tx_frame_end()
2060 buffer_info = &tx->buffer_info[tx->frame_tail]; in lan743x_tx_frame_end()
2067 tx_descriptor->data0 = cpu_to_le32(tx->frame_data0); in lan743x_tx_frame_end()
2068 tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail); in lan743x_tx_frame_end()
2069 tx->last_tail = tx->frame_tail; in lan743x_tx_frame_end()
2073 if (tx->vector_flags & LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
2075 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET) in lan743x_tx_frame_end()
2079 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_frame_end()
2080 tx_tail_flags | tx->frame_tail); in lan743x_tx_frame_end()
2081 tx->frame_flags &= ~TX_FRAME_FLAG_IN_PROGRESS; in lan743x_tx_frame_end()
2084 static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, in lan743x_tx_xmit_frame() argument
2100 required_number_of_descriptors = lan743x_tx_get_desc_cnt(tx, skb); in lan743x_tx_xmit_frame()
2102 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
2104 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_xmit_frame()
2105 if (required_number_of_descriptors > (tx->ring_size - 1)) { in lan743x_tx_xmit_frame()
2109 tx->rqd_descriptors = required_number_of_descriptors; in lan743x_tx_xmit_frame()
2111 txq = netdev_get_tx_queue(tx->adapter->netdev, in lan743x_tx_xmit_frame()
2112 tx->channel_number); in lan743x_tx_xmit_frame()
2120 (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) && in lan743x_tx_xmit_frame()
2121 (lan743x_ptp_request_tx_timestamp(tx->adapter))) { in lan743x_tx_xmit_frame()
2124 if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC) in lan743x_tx_xmit_frame()
2137 if (lan743x_tx_frame_start(tx, in lan743x_tx_xmit_frame()
2145 tx->frame_count++; in lan743x_tx_xmit_frame()
2148 lan743x_tx_frame_add_lso(tx, frame_length, nr_frags); in lan743x_tx_xmit_frame()
2156 if (lan743x_tx_frame_add_fragment(tx, frag, frame_length)) { in lan743x_tx_xmit_frame()
2168 lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync); in lan743x_tx_xmit_frame()
2171 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_xmit_frame()
2177 struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); in lan743x_tx_napi_poll() local
2178 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_napi_poll()
2183 ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); in lan743x_tx_napi_poll()
2185 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C) in lan743x_tx_napi_poll()
2187 spin_lock_irqsave(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
2190 lan743x_tx_release_completed_descriptors(tx); in lan743x_tx_napi_poll()
2191 txq = netdev_get_tx_queue(adapter->netdev, tx->channel_number); in lan743x_tx_napi_poll()
2193 if (tx->rqd_descriptors) { in lan743x_tx_napi_poll()
2194 if (tx->rqd_descriptors <= in lan743x_tx_napi_poll()
2195 lan743x_tx_get_avail_desc(tx)) { in lan743x_tx_napi_poll()
2196 tx->rqd_descriptors = 0; in lan743x_tx_napi_poll()
2203 spin_unlock_irqrestore(&tx->ring_lock, irq_flags); in lan743x_tx_napi_poll()
2210 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_napi_poll()
2217 static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx) in lan743x_tx_ring_cleanup() argument
2219 if (tx->head_cpu_ptr) { in lan743x_tx_ring_cleanup()
2220 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
2221 sizeof(*tx->head_cpu_ptr), tx->head_cpu_ptr, in lan743x_tx_ring_cleanup()
2222 tx->head_dma_ptr); in lan743x_tx_ring_cleanup()
2223 tx->head_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
2224 tx->head_dma_ptr = 0; in lan743x_tx_ring_cleanup()
2226 kfree(tx->buffer_info); in lan743x_tx_ring_cleanup()
2227 tx->buffer_info = NULL; in lan743x_tx_ring_cleanup()
2229 if (tx->ring_cpu_ptr) { in lan743x_tx_ring_cleanup()
2230 dma_free_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_cleanup()
2231 tx->ring_allocation_size, tx->ring_cpu_ptr, in lan743x_tx_ring_cleanup()
2232 tx->ring_dma_ptr); in lan743x_tx_ring_cleanup()
2233 tx->ring_allocation_size = 0; in lan743x_tx_ring_cleanup()
2234 tx->ring_cpu_ptr = NULL; in lan743x_tx_ring_cleanup()
2235 tx->ring_dma_ptr = 0; in lan743x_tx_ring_cleanup()
2237 tx->ring_size = 0; in lan743x_tx_ring_cleanup()
2240 static int lan743x_tx_ring_init(struct lan743x_tx *tx) in lan743x_tx_ring_init() argument
2247 tx->ring_size = LAN743X_TX_RING_SIZE; in lan743x_tx_ring_init()
2248 if (tx->ring_size & ~TX_CFG_B_TX_RING_LEN_MASK_) { in lan743x_tx_ring_init()
2252 if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
2254 dev_warn(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
2259 ring_allocation_size = ALIGN(tx->ring_size * in lan743x_tx_ring_init()
2263 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
2270 tx->ring_allocation_size = ring_allocation_size; in lan743x_tx_ring_init()
2271 tx->ring_cpu_ptr = (struct lan743x_tx_descriptor *)cpu_ptr; in lan743x_tx_ring_init()
2272 tx->ring_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
2274 cpu_ptr = kcalloc(tx->ring_size, sizeof(*tx->buffer_info), GFP_KERNEL); in lan743x_tx_ring_init()
2279 tx->buffer_info = (struct lan743x_tx_buffer_info *)cpu_ptr; in lan743x_tx_ring_init()
2281 cpu_ptr = dma_alloc_coherent(&tx->adapter->pdev->dev, in lan743x_tx_ring_init()
2282 sizeof(*tx->head_cpu_ptr), &dma_ptr, in lan743x_tx_ring_init()
2289 tx->head_cpu_ptr = cpu_ptr; in lan743x_tx_ring_init()
2290 tx->head_dma_ptr = dma_ptr; in lan743x_tx_ring_init()
2291 if (tx->head_dma_ptr & 0x3) { in lan743x_tx_ring_init()
2299 lan743x_tx_ring_cleanup(tx); in lan743x_tx_ring_init()
2303 static void lan743x_tx_close(struct lan743x_tx *tx) in lan743x_tx_close() argument
2305 struct lan743x_adapter *adapter = tx->adapter; in lan743x_tx_close()
2309 DMAC_CMD_STOP_T_(tx->channel_number)); in lan743x_tx_close()
2310 lan743x_dmac_tx_wait_till_stopped(adapter, tx->channel_number); in lan743x_tx_close()
2314 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_close()
2316 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_close()
2317 napi_disable(&tx->napi); in lan743x_tx_close()
2318 netif_napi_del(&tx->napi); in lan743x_tx_close()
2321 FCT_TX_CTL_DIS_(tx->channel_number)); in lan743x_tx_close()
2323 FCT_TX_CTL_EN_(tx->channel_number), in lan743x_tx_close()
2326 lan743x_tx_release_all_descriptors(tx); in lan743x_tx_close()
2328 tx->rqd_descriptors = 0; in lan743x_tx_close()
2330 lan743x_tx_ring_cleanup(tx); in lan743x_tx_close()
2333 static int lan743x_tx_open(struct lan743x_tx *tx) in lan743x_tx_open() argument
2339 adapter = tx->adapter; in lan743x_tx_open()
2340 ret = lan743x_tx_ring_init(tx); in lan743x_tx_open()
2346 FCT_TX_CTL_RESET_(tx->channel_number)); in lan743x_tx_open()
2348 FCT_TX_CTL_RESET_(tx->channel_number), in lan743x_tx_open()
2353 FCT_TX_CTL_EN_(tx->channel_number)); in lan743x_tx_open()
2357 DMAC_CMD_TX_SWR_(tx->channel_number)); in lan743x_tx_open()
2359 DMAC_CMD_TX_SWR_(tx->channel_number), in lan743x_tx_open()
2364 TX_BASE_ADDRH(tx->channel_number), in lan743x_tx_open()
2365 DMA_ADDR_HIGH32(tx->ring_dma_ptr)); in lan743x_tx_open()
2367 TX_BASE_ADDRL(tx->channel_number), in lan743x_tx_open()
2368 DMA_ADDR_LOW32(tx->ring_dma_ptr)); in lan743x_tx_open()
2371 data = lan743x_csr_read(adapter, TX_CFG_B(tx->channel_number)); in lan743x_tx_open()
2373 data |= ((tx->ring_size) & TX_CFG_B_TX_RING_LEN_MASK_); in lan743x_tx_open()
2376 lan743x_csr_write(adapter, TX_CFG_B(tx->channel_number), data); in lan743x_tx_open()
2386 lan743x_csr_write(adapter, TX_CFG_A(tx->channel_number), data); in lan743x_tx_open()
2390 TX_HEAD_WRITEBACK_ADDRH(tx->channel_number), in lan743x_tx_open()
2391 DMA_ADDR_HIGH32(tx->head_dma_ptr)); in lan743x_tx_open()
2393 TX_HEAD_WRITEBACK_ADDRL(tx->channel_number), in lan743x_tx_open()
2394 DMA_ADDR_LOW32(tx->head_dma_ptr)); in lan743x_tx_open()
2397 tx->last_head = lan743x_csr_read(adapter, TX_HEAD(tx->channel_number)); in lan743x_tx_open()
2400 tx->last_tail = 0; in lan743x_tx_open()
2401 lan743x_csr_write(adapter, TX_TAIL(tx->channel_number), in lan743x_tx_open()
2402 (u32)(tx->last_tail)); in lan743x_tx_open()
2403 tx->vector_flags = lan743x_intr_get_vector_flags(adapter, in lan743x_tx_open()
2405 (tx->channel_number)); in lan743x_tx_open()
2407 &tx->napi, lan743x_tx_napi_poll, in lan743x_tx_open()
2409 napi_enable(&tx->napi); in lan743x_tx_open()
2412 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR) in lan743x_tx_open()
2414 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR) in lan743x_tx_open()
2416 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C) in lan743x_tx_open()
2418 if (tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C) in lan743x_tx_open()
2420 lan743x_csr_write(adapter, TX_CFG_C(tx->channel_number), data); in lan743x_tx_open()
2422 if (!(tx->vector_flags & LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET)) in lan743x_tx_open()
2424 INT_BIT_DMA_TX_(tx->channel_number)); in lan743x_tx_open()
2426 DMAC_INT_BIT_TX_IOC_(tx->channel_number)); in lan743x_tx_open()
2430 DMAC_CMD_START_T_(tx->channel_number)); in lan743x_tx_open()
3010 lan743x_tx_close(&adapter->tx[index]); in lan743x_netdev_close()
3057 ret = lan743x_tx_open(&adapter->tx[index]); in lan743x_netdev_open()
3065 if (adapter->tx[index].ring_cpu_ptr) in lan743x_netdev_open()
3066 lan743x_tx_close(&adapter->tx[index]); in lan743x_netdev_open()
3100 return lan743x_tx_xmit_frame(&adapter->tx[ch], skb); in lan743x_netdev_xmit_frame()
3227 struct lan743x_tx *tx; in lan743x_hardware_init() local
3276 tx = &adapter->tx[index]; in lan743x_hardware_init()
3277 tx->adapter = adapter; in lan743x_hardware_init()
3278 tx->channel_number = index; in lan743x_hardware_init()
3279 spin_lock_init(&tx->ring_lock); in lan743x_hardware_init()