From: Anatolij Gustschin <agust@denx.de>
Date: Sat, 12 Dec 2009 13:52:21 +0000 (+0100)
Subject: [SCSI] mptsas: Fix issue with chain pools allocation on katmai
X-Git-Tag: v2.6.33-rc6~14^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f1053a7ca9ce095d95bcc1cf41684c5e4f3e7751;p=pandora-kernel.git

[SCSI] mptsas: Fix issue with chain pools allocation on katmai

Since commit 9d2e9d66a3f032667934144cd61c396ba49f090d
mptsas driver fails to allocate memory for the MPT chain buffers
for second LSI adapter on PPC440SPe Katmai platform:
...
ioc1: LSISAS1068E B3: Capabilities={Initiator}
mptbase: ioc1: ERROR - Unable to allocate Reply, Request, Chain Buffers!
mptbase: ioc1: ERROR - didn't initialize properly! (-3)
mptsas: probe of 0002:31:00.0 failed with error -3

This commit increased MPT_FC_CAN_QUEUE value but initChainBuffers()
doesn't differentiate between SAS and FC causing increased allocation
for SAS case, too. Later pci_alloc_consistent() fails to allocate
increased chain buffer pool size for SAS case.

Provide a fix by looking at the bus type and using appropriate
MPT_SAS_CAN_QUEUE value while calculation of the number of chain
buffers.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Kashyap Desai <kashyap.desai@lsi.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---

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