New upstream version 18.08
[deb_dpdk.git] / drivers / net / e1000 / em_rxtx.c
index 02fae10..7d2ac4e 100644 (file)
@@ -85,6 +85,7 @@ struct em_rx_queue {
        struct em_rx_entry *sw_ring;   /**< address of RX software ring. */
        struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
        struct rte_mbuf *pkt_last_seg;  /**< Last segment of current packet. */
+       uint64_t            offloads;   /**< Offloads of DEV_RX_OFFLOAD_* */
        uint16_t            nb_rx_desc; /**< number of RX descriptors. */
        uint16_t            rx_tail;    /**< current value of RDT register. */
        uint16_t            nb_rx_hold; /**< number of held free RX desc. */
@@ -163,6 +164,7 @@ struct em_tx_queue {
        uint8_t                wthresh;  /**< Write-back threshold register. */
        struct em_ctx_info ctx_cache;
        /**< Hardware context history.*/
+       uint64_t               offloads; /**< offloads of DEV_TX_OFFLOAD_* */
 };
 
 #if 1
@@ -1151,6 +1153,36 @@ em_reset_tx_queue(struct em_tx_queue *txq)
        memset((void*)&txq->ctx_cache, 0, sizeof (txq->ctx_cache));
 }
 
+uint64_t
+em_get_tx_port_offloads_capa(struct rte_eth_dev *dev)
+{
+       uint64_t tx_offload_capa;
+
+       RTE_SET_USED(dev);
+       tx_offload_capa =
+               DEV_TX_OFFLOAD_VLAN_INSERT |
+               DEV_TX_OFFLOAD_IPV4_CKSUM  |
+               DEV_TX_OFFLOAD_UDP_CKSUM   |
+               DEV_TX_OFFLOAD_TCP_CKSUM;
+
+       return tx_offload_capa;
+}
+
+uint64_t
+em_get_tx_queue_offloads_capa(struct rte_eth_dev *dev)
+{
+       uint64_t tx_queue_offload_capa;
+
+       /*
+        * As only one Tx queue can be used, let per queue offloading
+        * capability be same to per port queue offloading capability
+        * for better convenience.
+        */
+       tx_queue_offload_capa = em_get_tx_port_offloads_capa(dev);
+
+       return tx_queue_offload_capa;
+}
+
 int
 eth_em_tx_queue_setup(struct rte_eth_dev *dev,
                         uint16_t queue_idx,
@@ -1163,9 +1195,12 @@ eth_em_tx_queue_setup(struct rte_eth_dev *dev,
        struct e1000_hw     *hw;
        uint32_t tsize;
        uint16_t tx_rs_thresh, tx_free_thresh;
+       uint64_t offloads;
 
        hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 
+       offloads = tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
+
        /*
         * Validate number of transmit descriptors.
         * It must not exceed hardware maximum, and must be multiple
@@ -1269,6 +1304,7 @@ eth_em_tx_queue_setup(struct rte_eth_dev *dev,
        em_reset_tx_queue(txq);
 
        dev->data->tx_queues[queue_idx] = txq;
+       txq->offloads = offloads;
        return 0;
 }
 
@@ -1313,6 +1349,44 @@ em_reset_rx_queue(struct em_rx_queue *rxq)
        rxq->pkt_last_seg = NULL;
 }
 
+uint64_t
+em_get_rx_port_offloads_capa(struct rte_eth_dev *dev)
+{
+       uint64_t rx_offload_capa;
+       uint32_t max_rx_pktlen;
+
+       max_rx_pktlen = em_get_max_pktlen(dev);
+
+       rx_offload_capa =
+               DEV_RX_OFFLOAD_VLAN_STRIP  |
+               DEV_RX_OFFLOAD_VLAN_FILTER |
+               DEV_RX_OFFLOAD_IPV4_CKSUM  |
+               DEV_RX_OFFLOAD_UDP_CKSUM   |
+               DEV_RX_OFFLOAD_TCP_CKSUM   |
+               DEV_RX_OFFLOAD_CRC_STRIP   |
+               DEV_RX_OFFLOAD_KEEP_CRC    |
+               DEV_RX_OFFLOAD_SCATTER;
+       if (max_rx_pktlen > ETHER_MAX_LEN)
+               rx_offload_capa |= DEV_RX_OFFLOAD_JUMBO_FRAME;
+
+       return rx_offload_capa;
+}
+
+uint64_t
+em_get_rx_queue_offloads_capa(struct rte_eth_dev *dev)
+{
+       uint64_t rx_queue_offload_capa;
+
+       /*
+        * As only one Rx queue can be used, let per queue offloading
+        * capability be same to per port queue offloading capability
+        * for better convenience.
+        */
+       rx_queue_offload_capa = em_get_rx_port_offloads_capa(dev);
+
+       return rx_queue_offload_capa;
+}
+
 int
 eth_em_rx_queue_setup(struct rte_eth_dev *dev,
                uint16_t queue_idx,
@@ -1325,9 +1399,12 @@ eth_em_rx_queue_setup(struct rte_eth_dev *dev,
        struct em_rx_queue *rxq;
        struct e1000_hw     *hw;
        uint32_t rsize;
+       uint64_t offloads;
 
        hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 
+       offloads = rx_conf->offloads | dev->data->dev_conf.rxmode.offloads;
+
        /*
         * Validate number of receive descriptors.
         * It must not exceed hardware maximum, and must be multiple
@@ -1382,8 +1459,10 @@ eth_em_rx_queue_setup(struct rte_eth_dev *dev,
        rxq->rx_free_thresh = rx_conf->rx_free_thresh;
        rxq->queue_id = queue_idx;
        rxq->port_id = dev->data->port_id;
-       rxq->crc_len = (uint8_t) ((dev->data->dev_conf.rxmode.hw_strip_crc) ?
-                               0 : ETHER_CRC_LEN);
+       if (rte_eth_dev_must_keep_crc(dev->data->dev_conf.rxmode.offloads))
+               rxq->crc_len = ETHER_CRC_LEN;
+       else
+               rxq->crc_len = 0;
 
        rxq->rdt_reg_addr = E1000_PCI_REG_ADDR(hw, E1000_RDT(queue_idx));
        rxq->rdh_reg_addr = E1000_PCI_REG_ADDR(hw, E1000_RDH(queue_idx));
@@ -1395,6 +1474,7 @@ eth_em_rx_queue_setup(struct rte_eth_dev *dev,
 
        dev->data->rx_queues[queue_idx] = rxq;
        em_reset_rx_queue(rxq);
+       rxq->offloads = offloads;
 
        return 0;
 }
@@ -1646,6 +1726,7 @@ eth_em_rx_init(struct rte_eth_dev *dev)
 {
        struct e1000_hw *hw;
        struct em_rx_queue *rxq;
+       struct rte_eth_rxmode *rxmode;
        uint32_t rctl;
        uint32_t rfctl;
        uint32_t rxcsum;
@@ -1654,6 +1735,7 @@ eth_em_rx_init(struct rte_eth_dev *dev)
        int ret;
 
        hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       rxmode = &dev->data->dev_conf.rxmode;
 
        /*
         * Make sure receives are disabled while setting
@@ -1713,9 +1795,10 @@ eth_em_rx_init(struct rte_eth_dev *dev)
                 * Reset crc_len in case it was changed after queue setup by a
                 *  call to configure
                 */
-               rxq->crc_len =
-                       (uint8_t)(dev->data->dev_conf.rxmode.hw_strip_crc ?
-                                                       0 : ETHER_CRC_LEN);
+               if (rte_eth_dev_must_keep_crc(dev->data->dev_conf.rxmode.offloads))
+                       rxq->crc_len = ETHER_CRC_LEN;
+               else
+                       rxq->crc_len = 0;
 
                bus_addr = rxq->rx_ring_phys_addr;
                E1000_WRITE_REG(hw, E1000_RDLEN(i),
@@ -1745,7 +1828,7 @@ eth_em_rx_init(struct rte_eth_dev *dev)
                 * to avoid splitting packets that don't fit into
                 * one buffer.
                 */
-               if (dev->data->dev_conf.rxmode.jumbo_frame ||
+               if (rxmode->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME ||
                                rctl_bsize < ETHER_MAX_LEN) {
                        if (!dev->data->scattered_rx)
                                PMD_INIT_LOG(DEBUG, "forcing scatter mode");
@@ -1755,7 +1838,7 @@ eth_em_rx_init(struct rte_eth_dev *dev)
                }
        }
 
-       if (dev->data->dev_conf.rxmode.enable_scatter) {
+       if (dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_SCATTER) {
                if (!dev->data->scattered_rx)
                        PMD_INIT_LOG(DEBUG, "forcing scatter mode");
                dev->rx_pkt_burst = eth_em_recv_scattered_pkts;
@@ -1768,7 +1851,7 @@ eth_em_rx_init(struct rte_eth_dev *dev)
         */
        rxcsum = E1000_READ_REG(hw, E1000_RXCSUM);
 
-       if (dev->data->dev_conf.rxmode.hw_ip_checksum)
+       if (rxmode->offloads & DEV_RX_OFFLOAD_CHECKSUM)
                rxcsum |= E1000_RXCSUM_IPOFL;
        else
                rxcsum &= ~E1000_RXCSUM_IPOFL;
@@ -1780,24 +1863,24 @@ eth_em_rx_init(struct rte_eth_dev *dev)
        if ((hw->mac.type == e1000_ich9lan ||
                        hw->mac.type == e1000_pch2lan ||
                        hw->mac.type == e1000_ich10lan) &&
-                       dev->data->dev_conf.rxmode.jumbo_frame == 1) {
+                       rxmode->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
                u32 rxdctl = E1000_READ_REG(hw, E1000_RXDCTL(0));
                E1000_WRITE_REG(hw, E1000_RXDCTL(0), rxdctl | 3);
                E1000_WRITE_REG(hw, E1000_ERT, 0x100 | (1 << 13));
        }
 
        if (hw->mac.type == e1000_pch2lan) {
-               if (dev->data->dev_conf.rxmode.jumbo_frame == 1)
+               if (rxmode->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME)
                        e1000_lv_jumbo_workaround_ich8lan(hw, TRUE);
                else
                        e1000_lv_jumbo_workaround_ich8lan(hw, FALSE);
        }
 
        /* Setup the Receive Control Register. */
-       if (dev->data->dev_conf.rxmode.hw_strip_crc)
-               rctl |= E1000_RCTL_SECRC; /* Strip Ethernet CRC. */
-       else
+       if (rte_eth_dev_must_keep_crc(dev->data->dev_conf.rxmode.offloads))
                rctl &= ~E1000_RCTL_SECRC; /* Do not Strip Ethernet CRC. */
+       else
+               rctl |= E1000_RCTL_SECRC; /* Strip Ethernet CRC. */
 
        rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
        rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_LBM_NO |
@@ -1814,7 +1897,7 @@ eth_em_rx_init(struct rte_eth_dev *dev)
        /*
         * Configure support of jumbo frames, if any.
         */
-       if (dev->data->dev_conf.rxmode.jumbo_frame == 1)
+       if (rxmode->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME)
                rctl |= E1000_RCTL_LPE;
        else
                rctl &= ~E1000_RCTL_LPE;
@@ -1894,6 +1977,7 @@ em_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
        qinfo->scattered_rx = dev->data->scattered_rx;
        qinfo->nb_desc = rxq->nb_rx_desc;
        qinfo->conf.rx_free_thresh = rxq->rx_free_thresh;
+       qinfo->conf.offloads = rxq->offloads;
 }
 
 void
@@ -1911,4 +1995,5 @@ em_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
        qinfo->conf.tx_thresh.wthresh = txq->wthresh;
        qinfo->conf.tx_free_thresh = txq->tx_free_thresh;
        qinfo->conf.tx_rs_thresh = txq->tx_rs_thresh;
+       qinfo->conf.offloads = txq->offloads;
 }