*/
#include "fm10k.h"
+#include <linux/vmalloc.h>
+
+/**
+ * fm10k_setup_tx_resources - allocate Tx resources (Descriptors)
+ * @tx_ring: tx descriptor ring (for a specific queue) to setup
+ *
+ * Return 0 on success, negative on failure
+ **/
+int fm10k_setup_tx_resources(struct fm10k_ring *tx_ring)
+{
+ struct device *dev = tx_ring->dev;
+ int size;
+
+ size = sizeof(struct fm10k_tx_buffer) * tx_ring->count;
+
+ tx_ring->tx_buffer = vzalloc(size);
+ if (!tx_ring->tx_buffer)
+ goto err;
+
+ u64_stats_init(&tx_ring->syncp);
+
+ /* round up to nearest 4K */
+ tx_ring->size = tx_ring->count * sizeof(struct fm10k_tx_desc);
+ tx_ring->size = ALIGN(tx_ring->size, 4096);
+
+ tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size,
+ &tx_ring->dma, GFP_KERNEL);
+ if (!tx_ring->desc)
+ goto err;
+
+ return 0;
+
+err:
+ vfree(tx_ring->tx_buffer);
+ tx_ring->tx_buffer = NULL;
+ return -ENOMEM;
+}
+
+/**
+ * fm10k_setup_all_tx_resources - allocate all queues Tx resources
+ * @interface: board private structure
+ *
+ * If this function returns with an error, then it's possible one or
+ * more of the rings is populated (while the rest are not). It is the
+ * callers duty to clean those orphaned rings.
+ *
+ * Return 0 on success, negative on failure
+ **/
+static int fm10k_setup_all_tx_resources(struct fm10k_intfc *interface)
+{
+ int i, err = 0;
+
+ for (i = 0; i < interface->num_tx_queues; i++) {
+ err = fm10k_setup_tx_resources(interface->tx_ring[i]);
+ if (!err)
+ continue;
+
+ netif_err(interface, probe, interface->netdev,
+ "Allocation for Tx Queue %u failed\n", i);
+ goto err_setup_tx;
+ }
+
+ return 0;
+err_setup_tx:
+ /* rewind the index freeing the rings as we go */
+ while (i--)
+ fm10k_free_tx_resources(interface->tx_ring[i]);
+ return err;
+}
+
+/**
+ * fm10k_setup_rx_resources - allocate Rx resources (Descriptors)
+ * @rx_ring: rx descriptor ring (for a specific queue) to setup
+ *
+ * Returns 0 on success, negative on failure
+ **/
+int fm10k_setup_rx_resources(struct fm10k_ring *rx_ring)
+{
+ struct device *dev = rx_ring->dev;
+ int size;
+
+ size = sizeof(struct fm10k_rx_buffer) * rx_ring->count;
+
+ rx_ring->rx_buffer = vzalloc(size);
+ if (!rx_ring->rx_buffer)
+ goto err;
+
+ u64_stats_init(&rx_ring->syncp);
+
+ /* Round up to nearest 4K */
+ rx_ring->size = rx_ring->count * sizeof(union fm10k_rx_desc);
+ rx_ring->size = ALIGN(rx_ring->size, 4096);
+
+ rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size,
+ &rx_ring->dma, GFP_KERNEL);
+ if (!rx_ring->desc)
+ goto err;
+
+ return 0;
+err:
+ vfree(rx_ring->rx_buffer);
+ rx_ring->rx_buffer = NULL;
+ return -ENOMEM;
+}
+
+/**
+ * fm10k_setup_all_rx_resources - allocate all queues Rx resources
+ * @interface: board private structure
+ *
+ * If this function returns with an error, then it's possible one or
+ * more of the rings is populated (while the rest are not). It is the
+ * callers duty to clean those orphaned rings.
+ *
+ * Return 0 on success, negative on failure
+ **/
+static int fm10k_setup_all_rx_resources(struct fm10k_intfc *interface)
+{
+ int i, err = 0;
+
+ for (i = 0; i < interface->num_rx_queues; i++) {
+ err = fm10k_setup_rx_resources(interface->rx_ring[i]);
+ if (!err)
+ continue;
+
+ netif_err(interface, probe, interface->netdev,
+ "Allocation for Rx Queue %u failed\n", i);
+ goto err_setup_rx;
+ }
+
+ return 0;
+err_setup_rx:
+ /* rewind the index freeing the rings as we go */
+ while (i--)
+ fm10k_free_rx_resources(interface->rx_ring[i]);
+ return err;
+}
+
+void fm10k_unmap_and_free_tx_resource(struct fm10k_ring *ring,
+ struct fm10k_tx_buffer *tx_buffer)
+{
+ if (tx_buffer->skb) {
+ dev_kfree_skb_any(tx_buffer->skb);
+ if (dma_unmap_len(tx_buffer, len))
+ dma_unmap_single(ring->dev,
+ dma_unmap_addr(tx_buffer, dma),
+ dma_unmap_len(tx_buffer, len),
+ DMA_TO_DEVICE);
+ } else if (dma_unmap_len(tx_buffer, len)) {
+ dma_unmap_page(ring->dev,
+ dma_unmap_addr(tx_buffer, dma),
+ dma_unmap_len(tx_buffer, len),
+ DMA_TO_DEVICE);
+ }
+ tx_buffer->next_to_watch = NULL;
+ tx_buffer->skb = NULL;
+ dma_unmap_len_set(tx_buffer, len, 0);
+ /* tx_buffer must be completely set up in the transmit path */
+}
+
+/**
+ * fm10k_clean_tx_ring - Free Tx Buffers
+ * @tx_ring: ring to be cleaned
+ **/
+static void fm10k_clean_tx_ring(struct fm10k_ring *tx_ring)
+{
+ struct fm10k_tx_buffer *tx_buffer;
+ unsigned long size;
+ u16 i;
+
+ /* ring already cleared, nothing to do */
+ if (!tx_ring->tx_buffer)
+ return;
+
+ /* Free all the Tx ring sk_buffs */
+ for (i = 0; i < tx_ring->count; i++) {
+ tx_buffer = &tx_ring->tx_buffer[i];
+ fm10k_unmap_and_free_tx_resource(tx_ring, tx_buffer);
+ }
+
+ /* reset BQL values */
+ netdev_tx_reset_queue(txring_txq(tx_ring));
+
+ size = sizeof(struct fm10k_tx_buffer) * tx_ring->count;
+ memset(tx_ring->tx_buffer, 0, size);
+
+ /* Zero out the descriptor ring */
+ memset(tx_ring->desc, 0, tx_ring->size);
+}
+
+/**
+ * fm10k_free_tx_resources - Free Tx Resources per Queue
+ * @tx_ring: Tx descriptor ring for a specific queue
+ *
+ * Free all transmit software resources
+ **/
+void fm10k_free_tx_resources(struct fm10k_ring *tx_ring)
+{
+ fm10k_clean_tx_ring(tx_ring);
+
+ vfree(tx_ring->tx_buffer);
+ tx_ring->tx_buffer = NULL;
+
+ /* if not set, then don't free */
+ if (!tx_ring->desc)
+ return;
+
+ dma_free_coherent(tx_ring->dev, tx_ring->size,
+ tx_ring->desc, tx_ring->dma);
+ tx_ring->desc = NULL;
+}
+
+/**
+ * fm10k_clean_all_tx_rings - Free Tx Buffers for all queues
+ * @interface: board private structure
+ **/
+void fm10k_clean_all_tx_rings(struct fm10k_intfc *interface)
+{
+ int i;
+
+ for (i = 0; i < interface->num_tx_queues; i++)
+ fm10k_clean_tx_ring(interface->tx_ring[i]);
+}
+
+/**
+ * fm10k_free_all_tx_resources - Free Tx Resources for All Queues
+ * @interface: board private structure
+ *
+ * Free all transmit software resources
+ **/
+static void fm10k_free_all_tx_resources(struct fm10k_intfc *interface)
+{
+ int i = interface->num_tx_queues;
+
+ while (i--)
+ fm10k_free_tx_resources(interface->tx_ring[i]);
+}
+
+/**
+ * fm10k_clean_rx_ring - Free Rx Buffers per Queue
+ * @rx_ring: ring to free buffers from
+ **/
+static void fm10k_clean_rx_ring(struct fm10k_ring *rx_ring)
+{
+ unsigned long size;
+ u16 i;
+
+ if (!rx_ring->rx_buffer)
+ return;
+
+ if (rx_ring->skb)
+ dev_kfree_skb(rx_ring->skb);
+ rx_ring->skb = NULL;
+
+ /* Free all the Rx ring sk_buffs */
+ for (i = 0; i < rx_ring->count; i++) {
+ struct fm10k_rx_buffer *buffer = &rx_ring->rx_buffer[i];
+ /* clean-up will only set page pointer to NULL */
+ if (!buffer->page)
+ continue;
+
+ dma_unmap_page(rx_ring->dev, buffer->dma,
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ __free_page(buffer->page);
+
+ buffer->page = NULL;
+ }
+
+ size = sizeof(struct fm10k_rx_buffer) * rx_ring->count;
+ memset(rx_ring->rx_buffer, 0, size);
+
+ /* Zero out the descriptor ring */
+ memset(rx_ring->desc, 0, rx_ring->size);
+
+ rx_ring->next_to_alloc = 0;
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+}
+
+/**
+ * fm10k_free_rx_resources - Free Rx Resources
+ * @rx_ring: ring to clean the resources from
+ *
+ * Free all receive software resources
+ **/
+void fm10k_free_rx_resources(struct fm10k_ring *rx_ring)
+{
+ fm10k_clean_rx_ring(rx_ring);
+
+ vfree(rx_ring->rx_buffer);
+ rx_ring->rx_buffer = NULL;
+
+ /* if not set, then don't free */
+ if (!rx_ring->desc)
+ return;
+
+ dma_free_coherent(rx_ring->dev, rx_ring->size,
+ rx_ring->desc, rx_ring->dma);
+
+ rx_ring->desc = NULL;
+}
+
+/**
+ * fm10k_clean_all_rx_rings - Free Rx Buffers for all queues
+ * @interface: board private structure
+ **/
+void fm10k_clean_all_rx_rings(struct fm10k_intfc *interface)
+{
+ int i;
+
+ for (i = 0; i < interface->num_rx_queues; i++)
+ fm10k_clean_rx_ring(interface->rx_ring[i]);
+}
+
+/**
+ * fm10k_free_all_rx_resources - Free Rx Resources for All Queues
+ * @interface: board private structure
+ *
+ * Free all receive software resources
+ **/
+static void fm10k_free_all_rx_resources(struct fm10k_intfc *interface)
+{
+ int i = interface->num_rx_queues;
+
+ while (i--)
+ fm10k_free_rx_resources(interface->rx_ring[i]);
+}
/**
* fm10k_request_glort_range - Request GLORTs for use in configuring rules
struct fm10k_intfc *interface = netdev_priv(netdev);
int err;
+ /* allocate transmit descriptors */
+ err = fm10k_setup_all_tx_resources(interface);
+ if (err)
+ goto err_setup_tx;
+
+ /* allocate receive descriptors */
+ err = fm10k_setup_all_rx_resources(interface);
+ if (err)
+ goto err_setup_rx;
+
/* allocate interrupt resources */
err = fm10k_qv_request_irq(interface);
if (err)
err_set_queues:
fm10k_qv_free_irq(interface);
err_req_irq:
+ fm10k_free_all_rx_resources(interface);
+err_setup_rx:
+ fm10k_free_all_tx_resources(interface);
+err_setup_tx:
return err;
}
fm10k_qv_free_irq(interface);
+ fm10k_free_all_tx_resources(interface);
+ fm10k_free_all_rx_resources(interface);
+
return 0;
}
fm10k_service_event_complete(interface);
}
+/**
+ * fm10k_configure_tx_ring - Configure Tx ring after Reset
+ * @interface: board private structure
+ * @ring: structure containing ring specific data
+ *
+ * Configure the Tx descriptor ring after a reset.
+ **/
+static void fm10k_configure_tx_ring(struct fm10k_intfc *interface,
+ struct fm10k_ring *ring)
+{
+ struct fm10k_hw *hw = &interface->hw;
+ u64 tdba = ring->dma;
+ u32 size = ring->count * sizeof(struct fm10k_tx_desc);
+ u32 txint = FM10K_INT_MAP_DISABLE;
+ u32 txdctl = FM10K_TXDCTL_ENABLE | (1 << FM10K_TXDCTL_MAX_TIME_SHIFT);
+ u8 reg_idx = ring->reg_idx;
+
+ /* disable queue to avoid issues while updating state */
+ fm10k_write_reg(hw, FM10K_TXDCTL(reg_idx), 0);
+ fm10k_write_flush(hw);
+
+ /* possible poll here to verify ring resources have been cleaned */
+
+ /* set location and size for descriptor ring */
+ fm10k_write_reg(hw, FM10K_TDBAL(reg_idx), tdba & DMA_BIT_MASK(32));
+ fm10k_write_reg(hw, FM10K_TDBAH(reg_idx), tdba >> 32);
+ fm10k_write_reg(hw, FM10K_TDLEN(reg_idx), size);
+
+ /* reset head and tail pointers */
+ fm10k_write_reg(hw, FM10K_TDH(reg_idx), 0);
+ fm10k_write_reg(hw, FM10K_TDT(reg_idx), 0);
+
+ /* store tail pointer */
+ ring->tail = &interface->uc_addr[FM10K_TDT(reg_idx)];
+
+ /* reset ntu and ntc to place SW in sync with hardwdare */
+ ring->next_to_clean = 0;
+ ring->next_to_use = 0;
+
+ /* Map interrupt */
+ if (ring->q_vector) {
+ txint = ring->q_vector->v_idx + NON_Q_VECTORS(hw);
+ txint |= FM10K_INT_MAP_TIMER0;
+ }
+
+ fm10k_write_reg(hw, FM10K_TXINT(reg_idx), txint);
+
+ /* enable use of FTAG bit in Tx descriptor, register is RO for VF */
+ fm10k_write_reg(hw, FM10K_PFVTCTL(reg_idx),
+ FM10K_PFVTCTL_FTAG_DESC_ENABLE);
+
+ /* enable queue */
+ fm10k_write_reg(hw, FM10K_TXDCTL(reg_idx), txdctl);
+}
+
+/**
+ * fm10k_enable_tx_ring - Verify Tx ring is enabled after configuration
+ * @interface: board private structure
+ * @ring: structure containing ring specific data
+ *
+ * Verify the Tx descriptor ring is ready for transmit.
+ **/
+static void fm10k_enable_tx_ring(struct fm10k_intfc *interface,
+ struct fm10k_ring *ring)
+{
+ struct fm10k_hw *hw = &interface->hw;
+ int wait_loop = 10;
+ u32 txdctl;
+ u8 reg_idx = ring->reg_idx;
+
+ /* if we are already enabled just exit */
+ if (fm10k_read_reg(hw, FM10K_TXDCTL(reg_idx)) & FM10K_TXDCTL_ENABLE)
+ return;
+
+ /* poll to verify queue is enabled */
+ do {
+ usleep_range(1000, 2000);
+ txdctl = fm10k_read_reg(hw, FM10K_TXDCTL(reg_idx));
+ } while (!(txdctl & FM10K_TXDCTL_ENABLE) && --wait_loop);
+ if (!wait_loop)
+ netif_err(interface, drv, interface->netdev,
+ "Could not enable Tx Queue %d\n", reg_idx);
+}
+
+/**
+ * fm10k_configure_tx - Configure Transmit Unit after Reset
+ * @interface: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+static void fm10k_configure_tx(struct fm10k_intfc *interface)
+{
+ int i;
+
+ /* Setup the HW Tx Head and Tail descriptor pointers */
+ for (i = 0; i < interface->num_tx_queues; i++)
+ fm10k_configure_tx_ring(interface, interface->tx_ring[i]);
+
+ /* poll here to verify that Tx rings are now enabled */
+ for (i = 0; i < interface->num_tx_queues; i++)
+ fm10k_enable_tx_ring(interface, interface->tx_ring[i]);
+}
+
+/**
+ * fm10k_configure_rx_ring - Configure Rx ring after Reset
+ * @interface: board private structure
+ * @ring: structure containing ring specific data
+ *
+ * Configure the Rx descriptor ring after a reset.
+ **/
+static void fm10k_configure_rx_ring(struct fm10k_intfc *interface,
+ struct fm10k_ring *ring)
+{
+ u64 rdba = ring->dma;
+ struct fm10k_hw *hw = &interface->hw;
+ u32 size = ring->count * sizeof(union fm10k_rx_desc);
+ u32 rxqctl = FM10K_RXQCTL_ENABLE | FM10K_RXQCTL_PF;
+ u32 rxdctl = FM10K_RXDCTL_WRITE_BACK_MIN_DELAY;
+ u32 srrctl = FM10K_SRRCTL_BUFFER_CHAINING_EN;
+ u32 rxint = FM10K_INT_MAP_DISABLE;
+ u8 rx_pause = interface->rx_pause;
+ u8 reg_idx = ring->reg_idx;
+
+ /* disable queue to avoid issues while updating state */
+ fm10k_write_reg(hw, FM10K_RXQCTL(reg_idx), 0);
+ fm10k_write_flush(hw);
+
+ /* possible poll here to verify ring resources have been cleaned */
+
+ /* set location and size for descriptor ring */
+ fm10k_write_reg(hw, FM10K_RDBAL(reg_idx), rdba & DMA_BIT_MASK(32));
+ fm10k_write_reg(hw, FM10K_RDBAH(reg_idx), rdba >> 32);
+ fm10k_write_reg(hw, FM10K_RDLEN(reg_idx), size);
+
+ /* reset head and tail pointers */
+ fm10k_write_reg(hw, FM10K_RDH(reg_idx), 0);
+ fm10k_write_reg(hw, FM10K_RDT(reg_idx), 0);
+
+ /* store tail pointer */
+ ring->tail = &interface->uc_addr[FM10K_RDT(reg_idx)];
+
+ /* reset ntu and ntc to place SW in sync with hardwdare */
+ ring->next_to_clean = 0;
+ ring->next_to_use = 0;
+ ring->next_to_alloc = 0;
+
+ /* Configure the Rx buffer size for one buff without split */
+ srrctl |= FM10K_RX_BUFSZ >> FM10K_SRRCTL_BSIZEPKT_SHIFT;
+
+ /* Configure the Rx ring to supress loopback packets */
+ srrctl |= FM10K_SRRCTL_LOOPBACK_SUPPRESS;
+ fm10k_write_reg(hw, FM10K_SRRCTL(reg_idx), srrctl);
+
+ /* Enable drop on empty */
+#if defined(HAVE_DCBNL_IEEE) && defined(CONFIG_DCB)
+ if (interface->pfc_en)
+ rx_pause = interface->pfc_en;
+#endif
+ if (!(rx_pause & (1 << ring->qos_pc)))
+ rxdctl |= FM10K_RXDCTL_DROP_ON_EMPTY;
+
+ fm10k_write_reg(hw, FM10K_RXDCTL(reg_idx), rxdctl);
+
+ /* assign default VLAN to queue */
+ ring->vid = hw->mac.default_vid;
+
+ /* Map interrupt */
+ if (ring->q_vector) {
+ rxint = ring->q_vector->v_idx + NON_Q_VECTORS(hw);
+ rxint |= FM10K_INT_MAP_TIMER1;
+ }
+
+ fm10k_write_reg(hw, FM10K_RXINT(reg_idx), rxint);
+
+ /* enable queue */
+ fm10k_write_reg(hw, FM10K_RXQCTL(reg_idx), rxqctl);
+}
+
+/**
+ * fm10k_update_rx_drop_en - Configures the drop enable bits for Rx rings
+ * @interface: board private structure
+ *
+ * Configure the drop enable bits for the Rx rings.
+ **/
+void fm10k_update_rx_drop_en(struct fm10k_intfc *interface)
+{
+ struct fm10k_hw *hw = &interface->hw;
+ u8 rx_pause = interface->rx_pause;
+ int i;
+
+#if defined(HAVE_DCBNL_IEEE) && defined(CONFIG_DCB)
+ if (interface->pfc_en)
+ rx_pause = interface->pfc_en;
+
+#endif
+ for (i = 0; i < interface->num_rx_queues; i++) {
+ struct fm10k_ring *ring = interface->rx_ring[i];
+ u32 rxdctl = FM10K_RXDCTL_WRITE_BACK_MIN_DELAY;
+ u8 reg_idx = ring->reg_idx;
+
+ if (!(rx_pause & (1 << ring->qos_pc)))
+ rxdctl |= FM10K_RXDCTL_DROP_ON_EMPTY;
+
+ fm10k_write_reg(hw, FM10K_RXDCTL(reg_idx), rxdctl);
+ }
+}
+
+/**
+ * fm10k_configure_dglort - Configure Receive DGLORT after reset
+ * @interface: board private structure
+ *
+ * Configure the DGLORT description and RSS tables.
+ **/
+static void fm10k_configure_dglort(struct fm10k_intfc *interface)
+{
+ struct fm10k_dglort_cfg dglort = { 0 };
+ struct fm10k_hw *hw = &interface->hw;
+ int i;
+ u32 mrqc;
+
+ /* Fill out hash function seeds */
+ for (i = 0; i < FM10K_RSSRK_SIZE; i++)
+ fm10k_write_reg(hw, FM10K_RSSRK(0, i), interface->rssrk[i]);
+
+ /* Write RETA table to hardware */
+ for (i = 0; i < FM10K_RETA_SIZE; i++)
+ fm10k_write_reg(hw, FM10K_RETA(0, i), interface->reta[i]);
+
+ /* Generate RSS hash based on packet types, TCP/UDP
+ * port numbers and/or IPv4/v6 src and dst addresses
+ */
+ mrqc = FM10K_MRQC_IPV4 |
+ FM10K_MRQC_TCP_IPV4 |
+ FM10K_MRQC_IPV6 |
+ FM10K_MRQC_TCP_IPV6;
+
+ if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
+ mrqc |= FM10K_MRQC_UDP_IPV4;
+ if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
+ mrqc |= FM10K_MRQC_UDP_IPV6;
+
+ fm10k_write_reg(hw, FM10K_MRQC(0), mrqc);
+
+ /* configure default DGLORT mapping for RSS/DCB */
+ dglort.inner_rss = 1;
+ dglort.rss_l = fls(interface->ring_feature[RING_F_RSS].mask);
+ dglort.pc_l = fls(interface->ring_feature[RING_F_QOS].mask);
+ hw->mac.ops.configure_dglort_map(hw, &dglort);
+
+ /* assign GLORT per queue for queue mapped testing */
+ if (interface->glort_count > 64) {
+ memset(&dglort, 0, sizeof(dglort));
+ dglort.inner_rss = 1;
+ dglort.glort = interface->glort + 64;
+ dglort.idx = fm10k_dglort_pf_queue;
+ dglort.queue_l = fls(interface->num_rx_queues - 1);
+ hw->mac.ops.configure_dglort_map(hw, &dglort);
+ }
+
+ /* assign glort value for RSS/DCB specific to this interface */
+ memset(&dglort, 0, sizeof(dglort));
+ dglort.inner_rss = 1;
+ dglort.glort = interface->glort;
+ dglort.rss_l = fls(interface->ring_feature[RING_F_RSS].mask);
+ dglort.pc_l = fls(interface->ring_feature[RING_F_QOS].mask);
+ /* configure DGLORT mapping for RSS/DCB */
+ dglort.idx = fm10k_dglort_pf_rss;
+ hw->mac.ops.configure_dglort_map(hw, &dglort);
+}
+
+/**
+ * fm10k_configure_rx - Configure Receive Unit after Reset
+ * @interface: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+static void fm10k_configure_rx(struct fm10k_intfc *interface)
+{
+ int i;
+
+ /* Configure SWPRI to PC map */
+ fm10k_configure_swpri_map(interface);
+
+ /* Configure RSS and DGLORT map */
+ fm10k_configure_dglort(interface);
+
+ /* Setup the HW Rx Head and Tail descriptor pointers */
+ for (i = 0; i < interface->num_rx_queues; i++)
+ fm10k_configure_rx_ring(interface, interface->rx_ring[i]);
+
+ /* possible poll here to verify that Rx rings are now enabled */
+}
+
static void fm10k_napi_enable_all(struct fm10k_intfc *interface)
{
struct fm10k_q_vector *q_vector;
/* Enable Tx/Rx DMA */
hw->mac.ops.start_hw(hw);
+ /* configure Tx descriptor rings */
+ fm10k_configure_tx(interface);
+
+ /* configure Rx descriptor rings */
+ fm10k_configure_rx(interface);
+
/* configure interrupts */
hw->mac.ops.update_int_moderator(hw);
/* Disable DMA engine for Tx/Rx */
hw->mac.ops.stop_hw(hw);
+
+ /* free any buffers still on the rings */
+ fm10k_clean_all_tx_rings(interface);
}
/**
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff