netdev - [PATCH 10/10] vmxnet3: better RSS support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 15 Jan 2013 09:28:35 -0800
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	David Miller <davem@...emloft.net>,
	Shreyas Bhatewara <sbhatewara@...are.com>
Cc:	pv-drivers@...are.com, netdev@...r.kernel.org,
	Stephen Hemminger <stephen@...workplumber.org>
Subject: [PATCH 10/10] vmxnet3: better RSS support

The VMXNET3 device provides RSS hash value for received packets,
but it is not being used.

Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
---
 drivers/net/vmxnet3/vmxnet3_drv.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 9777dc6..b1c90f8 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -1226,6 +1226,11 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
 			pci_unmap_single(adapter->pdev, rbi->dma_addr, rbi->len,
 					 PCI_DMA_FROMDEVICE);
 
+#ifdef VMXNET3_RSS
+			if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE &&
+			    (adapter->netdev->features & NETIF_F_RXHASH))
+				ctx->skb->rxhash = le32_to_cpu(rcd->rssHash);
+#endif
 			skb_put(ctx->skb, rcd->len);
 
 			/* Immediate refill */
@@ -3022,6 +3027,8 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 	if (adapter->num_rx_queues > 1 &&
 	    adapter->intr.type == VMXNET3_IT_MSIX) {
 		adapter->rss = true;
+		netdev->hw_features |= NETIF_F_RXHASH;
+		netdev->features |= NETIF_F_RXHASH;
 		dev_dbg(&pdev->dev, "RSS is enabled.\n");
 	} else {
 		adapter->rss = false;
-- 
1.7.10.4

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html