New upstream version 18.02

[deb_dpdk.git] / drivers / net / e1000 / igb_rxtx.c

diff --git a/drivers/net/e1000/igb_rxtx.c b/drivers/net/e1000/igb_rxtx.c
index 4ee12e9..2f37167 100644 (file)
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -1,34 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2016 Intel Corporation
  */
 
 #include <sys/queue.h>
@@ -60,7 +31,7 @@
 #include <rte_malloc.h>
 #include <rte_mbuf.h>
 #include <rte_ether.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
 #include <rte_prefetch.h>
 #include <rte_udp.h>
 #include <rte_tcp.h>
@@ -2786,3 +2757,64 @@ igb_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
        qinfo->conf.tx_thresh.hthresh = txq->hthresh;
        qinfo->conf.tx_thresh.wthresh = txq->wthresh;
 }
+
+int
+igb_config_rss_filter(struct rte_eth_dev *dev,
+               struct igb_rte_flow_rss_conf *conf, bool add)
+{
+       uint32_t shift;
+       uint16_t i, j;
+       struct rte_eth_rss_conf rss_conf = conf->rss_conf;
+       struct e1000_filter_info *filter_info =
+               E1000_DEV_PRIVATE_TO_FILTER_INFO(dev->data->dev_private);
+       struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       if (!add) {
+               if (memcmp(conf, &filter_info->rss_info,
+                       sizeof(struct igb_rte_flow_rss_conf)) == 0) {
+                       igb_rss_disable(dev);
+                       memset(&filter_info->rss_info, 0,
+                               sizeof(struct igb_rte_flow_rss_conf));
+                       return 0;
+               }
+               return -EINVAL;
+       }
+
+       if (filter_info->rss_info.num)
+               return -EINVAL;
+
+       /* Fill in redirection table. */
+       shift = (hw->mac.type == e1000_82575) ? 6 : 0;
+       for (i = 0, j = 0; i < 128; i++, j++) {
+               union e1000_reta {
+                       uint32_t dword;
+                       uint8_t  bytes[4];
+               } reta;
+               uint8_t q_idx;
+
+               q_idx = conf->queue[j];
+               if (j == conf->num)
+                       j = 0;
+               reta.bytes[i & 3] = (uint8_t)(q_idx << shift);
+               if ((i & 3) == 3)
+                       E1000_WRITE_REG(hw, E1000_RETA(i >> 2), reta.dword);
+       }
+
+       /* Configure the RSS key and the RSS protocols used to compute
+        * the RSS hash of input packets.
+        */
+       if ((rss_conf.rss_hf & IGB_RSS_OFFLOAD_ALL) == 0) {
+               igb_rss_disable(dev);
+               return 0;
+       }
+       if (rss_conf.rss_key == NULL)
+               rss_conf.rss_key = rss_intel_key; /* Default hash key */
+       igb_hw_rss_hash_set(hw, &rss_conf);
+
+       rte_memcpy(&filter_info->rss_info,
+               conf, sizeof(struct igb_rte_flow_rss_conf));
+
+       return 0;
+}