From dcd4ef5e533a016500d13fa7a19afd2ab2e809fb Mon Sep 17 00:00:00 2001 From: Yunsheng Lin Date: Fri, 9 Mar 2018 10:36:56 +0800 Subject: [PATCH] net: hns3: refactor the hclge_get/set_rss function BugLink: https://bugs.launchpad.net/bugs/1768670 This patch refactors the hclge_get/set_rss function in order to fix the rss configuration loss problem during reset process. Signed-off-by: Yunsheng Lin Signed-off-by: Peng Li Signed-off-by: David S. Miller (cherry picked from commit 89523cfaa5e316ef3eec8d2c6ca44f9b5b9458d4) Signed-off-by: dann frazier Acked-by: Stefan Bader Acked-by: Kleber Sacilotto de Souza Signed-off-by: Khalid Elmously --- .../hisilicon/hns3/hns3pf/hclge_main.c | 39 ++++--------------- .../hisilicon/hns3/hns3pf/hclge_main.h | 2 + 2 files changed, 9 insertions(+), 32 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index f9bea150259e..131234dfb05f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -2981,31 +2981,6 @@ static u32 hclge_get_rss_indir_size(struct hnae3_handle *handle) return HCLGE_RSS_IND_TBL_SIZE; } -static int hclge_get_rss_algo(struct hclge_dev *hdev) -{ - struct hclge_rss_config_cmd *req; - struct hclge_desc desc; - int rss_hash_algo; - int ret; - - hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_RSS_GENERIC_CONFIG, true); - - ret = hclge_cmd_send(&hdev->hw, &desc, 1); - if (ret) { - dev_err(&hdev->pdev->dev, - "Get link status error, status =%d\n", ret); - return ret; - } - - req = (struct hclge_rss_config_cmd *)desc.data; - rss_hash_algo = (req->hash_config & HCLGE_RSS_HASH_ALGO_MASK); - - if (rss_hash_algo == HCLGE_RSS_HASH_ALGO_TOEPLITZ) - return ETH_RSS_HASH_TOP; - - return -EINVAL; -} - static int hclge_set_rss_algo_key(struct hclge_dev *hdev, const u8 hfunc, const u8 *key) { @@ -3044,7 +3019,7 @@ static int hclge_set_rss_algo_key(struct hclge_dev *hdev, return 0; } -static int hclge_set_rss_indir_table(struct hclge_dev *hdev, const u32 *indir) +static int hclge_set_rss_indir_table(struct hclge_dev *hdev, const u8 *indir) { struct hclge_rss_indirection_table_cmd *req; struct hclge_desc desc; @@ -3140,12 +3115,11 @@ static int hclge_get_rss(struct hnae3_handle *handle, u32 *indir, u8 *key, u8 *hfunc) { struct hclge_vport *vport = hclge_get_vport(handle); - struct hclge_dev *hdev = vport->back; int i; /* Get hash algorithm */ if (hfunc) - *hfunc = hclge_get_rss_algo(hdev); + *hfunc = vport->rss_algo; /* Get the RSS Key required by the user */ if (key) @@ -3169,8 +3143,6 @@ static int hclge_set_rss(struct hnae3_handle *handle, const u32 *indir, /* Set the RSS Hash Key if specififed by the user */ if (key) { - /* Update the shadow RSS key with user specified qids */ - memcpy(vport->rss_hash_key, key, HCLGE_RSS_KEY_SIZE); if (hfunc == ETH_RSS_HASH_TOP || hfunc == ETH_RSS_HASH_NO_CHANGE) @@ -3180,6 +3152,10 @@ static int hclge_set_rss(struct hnae3_handle *handle, const u32 *indir, ret = hclge_set_rss_algo_key(hdev, hash_algo, key); if (ret) return ret; + + /* Update the shadow RSS key with user specified qids */ + memcpy(vport->rss_hash_key, key, HCLGE_RSS_KEY_SIZE); + vport->rss_algo = hash_algo; } /* Update the shadow RSS table with user specified qids */ @@ -3187,8 +3163,7 @@ static int hclge_set_rss(struct hnae3_handle *handle, const u32 *indir, vport->rss_indirection_tbl[i] = indir[i]; /* Update the hardware */ - ret = hclge_set_rss_indir_table(hdev, indir); - return ret; + return hclge_set_rss_indir_table(hdev, vport->rss_indirection_tbl); } static u8 hclge_get_rss_hash_bits(struct ethtool_rxnfc *nfc) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h index d99a76a9557c..7e762c4d4d81 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h @@ -579,6 +579,8 @@ struct hclge_vport { u8 rss_hash_key[HCLGE_RSS_KEY_SIZE]; /* User configured hash keys */ /* User configured lookup table entries */ u8 rss_indirection_tbl[HCLGE_RSS_IND_TBL_SIZE]; + int rss_algo; /* User configured hash algorithm */ + u16 alloc_rss_size; u16 qs_offset; -- 2.39.2