netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
To: davem@davemloft.net
Cc: Alexander Duyck <alexander.h.duyck@intel.com>,
	netdev@vger.kernel.org, gospo@redhat.com,
	Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Subject: [net-next 10/11] ixgbe: cleanup configuration of EITRSEL and VF reset path
Date: Thu, 15 Sep 2011 21:42:52 -0700	[thread overview]
Message-ID: <1316148173-11209-11-git-send-email-jeffrey.t.kirsher@intel.com> (raw)
In-Reply-To: <1316148173-11209-1-git-send-email-jeffrey.t.kirsher@intel.com>

From: Alexander Duyck <alexander.h.duyck@intel.com>

This change is meant to cleanup some of the code related to SR-IOV and the
interrupt registers.  Specifically I am moving the EITRSEL configuration
into the MSI-X configuration section instead of enablement.  Also I am
fixing the VF shutdown path since it had operations in the incorrect order.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |   25 +++++++++++++------------
 1 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 6378d7f..0ee7d09 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1516,6 +1516,12 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter)
 
 	q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
 
+	/* Populate MSIX to EITR Select */
+	if (adapter->num_vfs > 32) {
+		u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1;
+		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel);
+	}
+
 	/*
 	 * Populate the IVAR table and set the ITR values to the
 	 * corresponding register.
@@ -2130,11 +2136,6 @@ static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues,
 		ixgbe_irq_enable_queues(adapter, ~0);
 	if (flush)
 		IXGBE_WRITE_FLUSH(&adapter->hw);
-
-	if (adapter->num_vfs > 32) {
-		u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1;
-		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel);
-	}
 }
 
 /**
@@ -2313,8 +2314,6 @@ static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter)
 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000);
 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0);
 		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0);
-		if (adapter->num_vfs > 32)
-			IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0);
 		break;
 	default:
 		break;
@@ -3863,17 +3862,19 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
 
 	del_timer_sync(&adapter->service_timer);
 
-	/* disable receive for all VFs and wait one second */
 	if (adapter->num_vfs) {
+		/* Clear EITR Select mapping */
+		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0);
+
+		/* Mark all the VFs as inactive */
+		for (i = 0 ; i < adapter->num_vfs; i++)
+			adapter->vfinfo[i].clear_to_send = 0;
+
 		/* ping all the active vfs to let them know we are going down */
 		ixgbe_ping_all_vfs(adapter);
 
 		/* Disable all VFTE/VFRE TX/RX */
 		ixgbe_disable_tx_rx(adapter);
-
-		/* Mark all the VFs as inactive */
-		for (i = 0 ; i < adapter->num_vfs; i++)
-			adapter->vfinfo[i].clear_to_send = 0;
 	}
 
 	/* disable transmits in the hardware now that interrupts are off */
-- 
1.7.6

  parent reply	other threads:[~2011-09-16  4:43 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-16  4:42 [net-next 00/11][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
2011-09-16  4:42 ` [net-next 01/11] ixgbe: Change default Tx work limit size to 256 buffers Jeff Kirsher
2011-09-16  4:42 ` [net-next 02/11] v2 ixgbe: consolidate all MSI-X ring interrupts and poll routines into one Jeff Kirsher
2011-09-16  4:42 ` [net-next 03/11] ixgbe: cleanup allocation and freeing of IRQ affinity hint Jeff Kirsher
2011-09-16  4:42 ` [net-next 04/11] ixgbe: Use ring->dev instead of adapter->pdev->dev when updating DCA Jeff Kirsher
2011-09-16  4:42 ` [net-next 05/11] ixgbe: commonize ixgbe_map_rings_to_vectors to work for all interrupt types Jeff Kirsher
2011-09-16  4:42 ` [net-next 06/11] ixgbe: Drop unnecessary adapter->hw dereference in loopback test setup Jeff Kirsher
2011-09-16  4:42 ` [net-next 07/11] ixgbe: combine PCI_VDEVICE and board declaration to same line Jeff Kirsher
2011-09-16  4:42 ` [net-next 08/11] ixgbe: Update TXDCTL configuration to correctly handle WTHRESH Jeff Kirsher
2011-09-16  4:42 ` [net-next 09/11] ixgbe: cleanup reset paths Jeff Kirsher
2011-09-16  4:42 ` Jeff Kirsher [this message]
2011-09-16  4:42 ` [net-next 11/11] ixgbe: Correctly name and handle MSI-X other interrupt Jeff Kirsher
2011-09-16 19:20 ` [net-next 00/11][pull request] Intel Wired LAN Driver Updates David Miller

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1316148173-11209-11-git-send-email-jeffrey.t.kirsher@intel.com \
    --to=jeffrey.t.kirsher@intel.com \
    --cc=alexander.h.duyck@intel.com \
    --cc=davem@davemloft.net \
    --cc=gospo@redhat.com \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).