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From: Roland Dreier <roland@topspin.com>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org, openib-general@openib.org
Subject: [PATCH][5/12] InfiniBand/mthca: don't write ECR in MSI-X mode
Date: Sun, 23 Jan 2005 22:14:23 -0800	[thread overview]
Message-ID: <20051232214.2iCZjnfrVaRa2RW5@topspin.com> (raw)
In-Reply-To: <20051232214.1JLCX02EnyVBhKBe@topspin.com>

From: "Michael S. Tsirkin" <mst@mellanox.co.il>

We don't need to write to the ECR to clear events when using MSI-X,
since we never read the ECR anyway.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@topspin.com>

--- linux-bk.orig/drivers/infiniband/hw/mthca/mthca_eq.c	2005-01-23 20:38:50.946247760 -0800
+++ linux-bk/drivers/infiniband/hw/mthca/mthca_eq.c	2005-01-23 20:47:40.946675448 -0800
@@ -381,7 +381,6 @@
 	struct mthca_eq  *eq  = eq_ptr;
 	struct mthca_dev *dev = eq->dev;
 
-	writel(eq->ecr_mask, dev->hcr + MTHCA_ECR_CLR_OFFSET + 4);
 	mthca_eq_int(dev, eq);
 
 	/* MSI-X vectors always belong to us */


  reply	other threads:[~2005-01-24  6:22 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-24  6:14 [PATCH][0/12] InfiniBand: updates for 2.6.11-rc2 Roland Dreier
2005-01-24  6:14 ` [PATCH][1/12] InfiniBand/core: compat_ioctl conversion minor fixes Roland Dreier
2005-01-24  6:14   ` [PATCH][2/12] InfiniBand/mthca: more Arbel Mem-Free support Roland Dreier
2005-01-24  6:14     ` [PATCH][3/12] InfiniBand/mthca: implement modifying port attributes Roland Dreier
2005-01-24  6:14       ` [PATCH][4/12] InfiniBand/core: fix port capability enums bit order Roland Dreier
2005-01-24  6:14         ` Roland Dreier [this message]
2005-01-24  6:14           ` [PATCH][6/12] InfiniBand/mthca: pass full process_mad info to firmware Roland Dreier
2005-01-24  6:14             ` [PATCH][7/12] InfiniBand/mthca: optimize event queue handling Roland Dreier
2005-01-24  6:14               ` [PATCH][8/12] InfiniBand/mthca: test IRQ routing during initialization Roland Dreier
2005-01-24  6:14                 ` [PATCH][9/12] InfiniBand/ipoib: remove uses of yield() Roland Dreier
2005-01-24  6:14                   ` [PATCH][10/12] InfiniBand/core: add IsSM userspace support Roland Dreier
2005-01-24  6:14                     ` [PATCH][11/12] InfiniBand/mthca: clean up ioremap()/request_region() usage Roland Dreier
2005-01-24  6:14                       ` [PATCH][12/12] InfiniBand/mthca: remove x86 SSE pessimization Roland Dreier
2005-01-24 18:44                         ` [openib-general] [PATCH][13/12] InfiniBand/mthca: initialize mutex earlier Roland Dreier

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