From: linas@austin.ibm.com (Linas Vepstas)
To: Andrew Morton <akpm@osdl.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
netdev@vger.kernel.org, James K Lewis <jklewis@us.ibm.com>,
linuxppc-dev@ozlabs.org, jgarzik@pobox.com
Subject: [PATCH 14/16] Spidernet Avoid possible RX chain corruption
Date: Wed, 6 Dec 2006 17:46:28 -0600 [thread overview]
Message-ID: <20061206234628.GN4649@austin.ibm.com> (raw)
In-Reply-To: <20061206223223.GH17931@austin.ibm.com>
Delete possible source of chain corruption; the hardware
already knows the location of the tail, and writing it
again is likely to mess it up.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: James K Lewis <jklewis@us.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
----
drivers/net/spider_net.c | 1 -
1 file changed, 1 deletion(-)
Index: linux-2.6.19-git7/drivers/net/spider_net.c
===================================================================
--- linux-2.6.19-git7.orig/drivers/net/spider_net.c 2006-12-06 16:03:16.000000000 -0600
+++ linux-2.6.19-git7/drivers/net/spider_net.c 2006-12-06 16:03:18.000000000 -0600
@@ -1195,7 +1195,6 @@ spider_net_handle_rxram_full(struct spid
while (spider_net_decode_one_descr(card, 0));
spider_net_refill_rx_chain(card);
- spider_net_enable_rxchtails(card);
spider_net_enable_rxdmac(card);
netif_rx_schedule(card->netdev);
spider_net_rx_irq_on(card);
WARNING: multiple messages have this Message-ID (diff)
From: linas@austin.ibm.com (Linas Vepstas)
To: Andrew Morton <akpm@osdl.org>
Cc: jgarzik@pobox.com, netdev@vger.kernel.org,
linuxppc-dev@ozlabs.org, James K Lewis <jklewis@us.ibm.com>,
Arnd Bergmann <arnd@arndb.de>,
Geoff Levand <geoffrey.levand@am.sony.com>
Subject: [PATCH 14/16] Spidernet Avoid possible RX chain corruption
Date: Wed, 6 Dec 2006 17:46:28 -0600 [thread overview]
Message-ID: <20061206234628.GN4649@austin.ibm.com> (raw)
In-Reply-To: <20061206223223.GH17931@austin.ibm.com>
Delete possible source of chain corruption; the hardware
already knows the location of the tail, and writing it
again is likely to mess it up.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: James K Lewis <jklewis@us.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
----
drivers/net/spider_net.c | 1 -
1 file changed, 1 deletion(-)
Index: linux-2.6.19-git7/drivers/net/spider_net.c
===================================================================
--- linux-2.6.19-git7.orig/drivers/net/spider_net.c 2006-12-06 16:03:16.000000000 -0600
+++ linux-2.6.19-git7/drivers/net/spider_net.c 2006-12-06 16:03:18.000000000 -0600
@@ -1195,7 +1195,6 @@ spider_net_handle_rxram_full(struct spid
while (spider_net_decode_one_descr(card, 0));
spider_net_refill_rx_chain(card);
- spider_net_enable_rxchtails(card);
spider_net_enable_rxdmac(card);
netif_rx_schedule(card->netdev);
spider_net_rx_irq_on(card);
next prev parent reply other threads:[~2006-12-06 23:46 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-06 22:32 [PATCH 0/16] Spidernet RX Misc cleanups and fixes Linas Vepstas
2006-12-06 22:32 ` Linas Vepstas
2006-12-06 23:27 ` [PATCH 1/16] Spidernet DMA coalescing Linas Vepstas
2006-12-06 23:27 ` Linas Vepstas
2006-12-07 7:08 ` Andrew Morton
2006-12-07 7:08 ` Andrew Morton
2006-12-07 17:16 ` Linas Vepstas
2006-12-08 2:12 ` Mail forwarding loop (was: Re: [PATCH 1/16] Spidernet DMA coalescing) Stephen Rothwell
2006-12-07 10:11 ` [PATCH 1/16] Spidernet DMA coalescing Christoph Hellwig
2006-12-07 10:11 ` Christoph Hellwig
2006-12-13 17:27 ` Linas Vepstas
2006-12-13 17:27 ` Linas Vepstas
2006-12-06 23:29 ` [PATCH 2/16] Spidernet add net_ratelimit to suppress long output Linas Vepstas
2006-12-06 23:29 ` Linas Vepstas
2006-12-06 23:31 ` [PATCH 3/16] Spidernet RX Locking Linas Vepstas
2006-12-06 23:31 ` Linas Vepstas
2006-12-07 10:09 ` Jeff Garzik
2006-12-07 10:09 ` Jeff Garzik
2006-12-07 17:50 ` Linas Vepstas
2006-12-07 17:50 ` Linas Vepstas
2006-12-08 22:47 ` Benjamin Herrenschmidt
2006-12-08 22:47 ` Benjamin Herrenschmidt
2006-12-11 21:07 ` Linas Vepstas
2006-12-11 21:07 ` Linas Vepstas
2006-12-06 23:33 ` [PATCH 4/16] Spidernet Refactor RX refill Linas Vepstas
2006-12-06 23:33 ` Linas Vepstas
2006-12-06 23:34 ` [PATCH 5/16] Spidernet RX skb mem leak Linas Vepstas
2006-12-06 23:34 ` Linas Vepstas
2006-12-06 23:36 ` [PATCH 6/16] Spidernet another " Linas Vepstas
2006-12-06 23:36 ` Linas Vepstas
2006-12-06 23:37 ` [PATCH 7/16] Spidernet Cleanup return codes Linas Vepstas
2006-12-06 23:37 ` Linas Vepstas
2006-12-06 23:39 ` [PATCH 8/16] Spidernet RX Refill Linas Vepstas
2006-12-06 23:39 ` Linas Vepstas
2006-12-06 23:40 ` [PATCH 9/16] Spidernet Merge error branches Linas Vepstas
2006-12-06 23:40 ` Linas Vepstas
2006-12-06 23:41 ` [PATCH 10/16] Spidernet Remove unused variable Linas Vepstas
2006-12-06 23:41 ` Linas Vepstas
2006-12-06 23:42 ` [PATCH 11/16] Spidernet RX Chain tail Linas Vepstas
2006-12-06 23:42 ` Linas Vepstas
2006-12-06 23:43 ` [PATCH 12/16] Spidernet Turn RX irq back on Linas Vepstas
2006-12-06 23:45 ` [PATCH 13/16] Spidernet Memory barrier Linas Vepstas
2006-12-06 23:45 ` Linas Vepstas
2006-12-06 23:46 ` Linas Vepstas [this message]
2006-12-06 23:46 ` [PATCH 14/16] Spidernet Avoid possible RX chain corruption Linas Vepstas
2006-12-06 23:49 ` [PATCH 15/16] Spidernet RX Debugging printout Linas Vepstas
2006-12-06 23:49 ` Linas Vepstas
2006-12-06 23:51 ` [PATCH 16/16] Spidernet Rework RX linked list Linas Vepstas
2006-12-06 23:51 ` Linas Vepstas
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