diff mbox

[v2,net-next,2/2] net: hns: fixes a bug of RSS

Message ID 1457616110-225844-3-git-send-email-yankejian@huawei.com (mailing list archive)
State New, archived
Headers show

Commit Message

yankejian March 10, 2016, 1:21 p.m. UTC
If trying to get receive flow hash indirection table by ethtool, it needs
to call .get_rxnfc to get ring number first. So this patch implements the
.get_rxnfc of ethtool. And the data type of rss_indir_table is u32, it has
to be multiply by the width of data type when using memcpy.

Signed-off-by: Kejian Yan <yankejian@huawei.com>
---
change log:
PATCH v2:
 - This patch fixes the comments provided by Andy Shevchenko <Andy Shevchenko>

PATCH v1:
 - first submit

 Link: https://lkml.org/lkml/2016/3/9/981
---
 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c |  6 ++++--
 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c  | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)

Comments

kernel test robot March 10, 2016, 1:27 p.m. UTC | #1
Hi Kejian,

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Kejian-Yan/net-hns-get-and-set-RSS-indirection-table-by-using-ethtool/20160310-210648
config: xtensa-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=xtensa 

All errors (new ones prefixed by >>):

   drivers/net/ethernet/hisilicon/hns/hns_ethtool.c: In function 'hns_get_rss':
   drivers/net/ethernet/hisilicon/hns/hns_ethtool.c:1214:6: warning: unused variable 'ret' [-Wunused-variable]
     int ret;
         ^
   drivers/net/ethernet/hisilicon/hns/hns_ethtool.c: In function 'hns_set_rss':
   drivers/net/ethernet/hisilicon/hns/hns_ethtool.c:1236:6: warning: unused variable 'ret' [-Wunused-variable]
     int ret;
         ^
   drivers/net/ethernet/hisilicon/hns/hns_ethtool.c: In function 'hns_get_rxnfc':
>> drivers/net/ethernet/hisilicon/hns/hns_ethtool.c:1267:11: error: 'ERRNO' undeclared (first use in this function)
      return -ERRNO;
              ^
   drivers/net/ethernet/hisilicon/hns/hns_ethtool.c:1267:11: note: each undeclared identifier is reported only once for each function it appears in

vim +/ERRNO +1267 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c

  1208	
  1209	static int
  1210	hns_get_rss(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
  1211	{
  1212		struct hns_nic_priv *priv = netdev_priv(netdev);
  1213		struct hnae_ae_ops *ops;
> 1214		int ret;
  1215	
  1216		if (AE_IS_VER1(priv->enet_ver)) {
  1217			netdev_err(netdev,
  1218				   "RSS feature is not supported on this hardware\n");
  1219			return -EOPNOTSUPP;
  1220		}
  1221	
  1222		ops = priv->ae_handle->dev->ops;
  1223	
  1224		if (!indir)
  1225			return 0;
  1226	
  1227		return ops->get_rss(priv->ae_handle, indir, key, hfunc);
  1228	}
  1229	
  1230	static int
  1231	hns_set_rss(struct net_device *netdev, const u32 *indir, const u8 *key,
  1232		    const u8 hfunc)
  1233	{
  1234		struct hns_nic_priv *priv = netdev_priv(netdev);
  1235		struct hnae_ae_ops *ops;
  1236		int ret;
  1237	
  1238		if (AE_IS_VER1(priv->enet_ver)) {
  1239			netdev_err(netdev,
  1240				   "RSS feature is not supported on this hardware\n");
  1241			return -EOPNOTSUPP;
  1242		}
  1243	
  1244		ops = priv->ae_handle->dev->ops;
  1245	
  1246		/* currently hfunc can only be Toeplitz hash */
  1247		if (key ||
  1248		    (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
  1249			return -EOPNOTSUPP;
  1250		if (!indir)
  1251			return 0;
  1252	
  1253		return ops->set_rss(priv->ae_handle, indir, key, hfunc);
  1254	}
  1255	
  1256	static int hns_get_rxnfc(struct net_device *netdev,
  1257				 struct ethtool_rxnfc *cmd,
  1258				 u32 *rule_locs)
  1259	{
  1260		struct hns_nic_priv *priv = netdev_priv(netdev);
  1261	
  1262		switch (cmd->cmd) {
  1263		case ETHTOOL_GRXRINGS:
  1264			cmd->data = priv->ae_handle->q_num;
  1265			break;
  1266		default:
> 1267			return -ERRNO;
  1268		}
  1269	
  1270		return 0;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
diff mbox

Patch

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index d07db1f..7b06e9b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -787,7 +787,8 @@  static int hns_ae_get_rss(struct hnae_handle *handle, u32 *indir, u8 *key,
 		memcpy(key, ppe_cb->rss_key, HNS_PPEV2_RSS_KEY_SIZE);
 
 	/* update the current hash->queue mappings from the shadow RSS table */
-	memcpy(indir, ppe_cb->rss_indir_table, HNS_PPEV2_RSS_IND_TBL_SIZE);
+	memcpy(indir, ppe_cb->rss_indir_table,
+	       HNS_PPEV2_RSS_IND_TBL_SIZE * sizeof(*indir));
 
 	return 0;
 }
@@ -802,7 +803,8 @@  static int hns_ae_set_rss(struct hnae_handle *handle, const u32 *indir,
 		hns_ppe_set_rss_key(ppe_cb, (u32 *)key);
 
 	/* update the shadow RSS table with user specified qids */
-	memcpy(ppe_cb->rss_indir_table, indir, HNS_PPEV2_RSS_IND_TBL_SIZE);
+	memcpy(ppe_cb->rss_indir_table, indir,
+	       HNS_PPEV2_RSS_IND_TBL_SIZE * sizeof(*indir));
 
 	/* now update the hardware */
 	hns_ppe_set_indir_table(ppe_cb, ppe_cb->rss_indir_table);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index 3b914ac..24b2b5f 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -1253,6 +1253,23 @@  hns_set_rss(struct net_device *netdev, const u32 *indir, const u8 *key,
 	return ops->set_rss(priv->ae_handle, indir, key, hfunc);
 }
 
+static int hns_get_rxnfc(struct net_device *netdev,
+			 struct ethtool_rxnfc *cmd,
+			 u32 *rule_locs)
+{
+	struct hns_nic_priv *priv = netdev_priv(netdev);
+
+	switch (cmd->cmd) {
+	case ETHTOOL_GRXRINGS:
+		cmd->data = priv->ae_handle->q_num;
+		break;
+	default:
+		return -ERRNO;
+	}
+
+	return 0;
+}
+
 static struct ethtool_ops hns_ethtool_ops = {
 	.get_drvinfo = hns_nic_get_drvinfo,
 	.get_link  = hns_nic_get_link,
@@ -1276,6 +1293,7 @@  static struct ethtool_ops hns_ethtool_ops = {
 	.get_rxfh_indir_size = hns_get_rss_indir_size,
 	.get_rxfh = hns_get_rss,
 	.set_rxfh = hns_set_rss,
+	.get_rxnfc = hns_get_rxnfc,
 };
 
 void hns_ethtool_set_ops(struct net_device *ndev)