From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from www2881.sakura.ne.jp (www2881.sakura.ne.jp [49.212.198.91]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB1AE1E98EF for ; Sat, 31 Jan 2026 16:31:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=49.212.198.91 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769877075; cv=none; b=aAn31KN7e9LzDOq8tK1yzeJTy+/3I4/pH7qY5DXHjmnucNGqnYRf6T1eLP5AMe+aZXWCxam0qOIvaF7oWF7bdVEANjicxCmo7W+0c/sIdhj/ek7xldgj53pQbdC+1iySwQxQS7hn3RHjKnaSeCKq3c+SsJgES/g639UhUOIucMA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769877075; c=relaxed/simple; bh=6jn30E8Tno20cIo9DWoCXmN53tPWQD+UmHIEU8Fs7WA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hEiQlPsI53WDJb6pemplWrKxDNbFp/ZzjoHt2tivD/34+N9gaC/Do74uiY467cgvCHoExENyID1SrY5J5ZI99a5llmWMA0BmH7Fa4dRvfwDHBMhTjzugXgHLsrsEIzHC0njwyeybf2QtsE2ElfZlqPHDDi5rf38zCiLDIJZ3z8g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=enjuk.jp; spf=pass smtp.mailfrom=enjuk.jp; dkim=pass (2048-bit key) header.d=enjuk.jp header.i=@enjuk.jp header.b=Vbze38Tg; arc=none smtp.client-ip=49.212.198.91 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=enjuk.jp Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=enjuk.jp Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=enjuk.jp header.i=@enjuk.jp header.b="Vbze38Tg" Received: from ms-a2 (248.212.13.160.dy.iij4u.or.jp [160.13.212.248]) (authenticated bits=0) by www2881.sakura.ne.jp (8.16.1/8.16.1) with ESMTPSA id 60VGV9GY039498 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sun, 1 Feb 2026 01:31:10 +0900 (JST) (envelope-from kohei@enjuk.jp) DKIM-Signature: a=rsa-sha256; bh=FZErLBRF0I98rij84pRgNIEgwO/sWc9BcJpuexvaePw=; c=relaxed/relaxed; d=enjuk.jp; h=From:To:Subject:Date:Message-ID; s=rs20251215; t=1769877070; v=1; b=Vbze38TgoAQe5w5cw4czspmc+AAdg/VbTnkrzKBm/r+p0HYQOM4wmEynGctzSU3M l9u7KJhcD2fMF3IFvCwbtri6gyu457xSVPZ0A6o57oeY1goNRI97hfy44Lc0F8ht RYZt36l+PpFLBUTUqPEo3/f+a3szzUH36x+sryt+ehspLfGRrwkjxZFW9EO9xWVI GOtEU2c+hMJ1WdMHZYVNfzZlZiDdO9JaBpyzSNZ64X1glI9HbTJfHP/zYahb1y/z 1+6nVi6qVDVvDtaFMasVEo6nPYrsdH2HhfS2XoNjBbD6wF9v0Lm9Kczi/0ElSdw2 cWRIji9A8/gjPqgSTmi7rA== From: Kohei Enju To: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org Cc: Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Vitaly Lifshits , Simon Horman , Aleksandr Loktionov , kohei.enju@gmail.com, Kohei Enju , Avigail Dahan Subject: [PATCH v2 iwl-next 2/3] igc: expose RSS key via ethtool get_rxfh Date: Sat, 31 Jan 2026 16:29:37 +0000 Message-ID: <20260131163037.88108-3-kohei@enjuk.jp> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260131163037.88108-1-kohei@enjuk.jp> References: <20260131163037.88108-1-kohei@enjuk.jp> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Implement igc_ethtool_get_rxfh_key_size() and extend igc_ethtool_get_rxfh() to return the RSS key to userspace. This can be tested using `ethtool -x `. Signed-off-by: Kohei Enju Tested-by: Avigail Dahan Reviewed-by: Vitaly Lifshits Reviewed-by: Simon Horman Reviewed-by: Aleksandr Loktionov --- drivers/net/ethernet/intel/igc/igc_ethtool.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c index 1b4075e7e8e6..661b044073ca 100644 --- a/drivers/net/ethernet/intel/igc/igc_ethtool.c +++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c @@ -1502,6 +1502,11 @@ void igc_write_rss_indir_tbl(struct igc_adapter *adapter) } } +static u32 igc_ethtool_get_rxfh_key_size(struct net_device *netdev) +{ + return IGC_RSS_KEY_SIZE; +} + static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) { return IGC_RETA_SIZE; @@ -1514,10 +1519,13 @@ static int igc_ethtool_get_rxfh(struct net_device *netdev, int i; rxfh->hfunc = ETH_RSS_HASH_TOP; - if (!rxfh->indir) - return 0; - for (i = 0; i < IGC_RETA_SIZE; i++) - rxfh->indir[i] = adapter->rss_indir_tbl[i]; + + if (rxfh->indir) + for (i = 0; i < IGC_RETA_SIZE; i++) + rxfh->indir[i] = adapter->rss_indir_tbl[i]; + + if (rxfh->key) + memcpy(rxfh->key, adapter->rss_key, sizeof(adapter->rss_key)); return 0; } @@ -2195,6 +2203,7 @@ static const struct ethtool_ops igc_ethtool_ops = { .get_rxnfc = igc_ethtool_get_rxnfc, .set_rxnfc = igc_ethtool_set_rxnfc, .get_rx_ring_count = igc_ethtool_get_rx_ring_count, + .get_rxfh_key_size = igc_ethtool_get_rxfh_key_size, .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, .get_rxfh = igc_ethtool_get_rxfh, .set_rxfh = igc_ethtool_set_rxfh, -- 2.51.0