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[SCSI] mpt fusion: Add separate msi enable disable for FC,SPI,SAS

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Added support for MSI enable/disable for different buses FC,SPI,SAS
instead of having single MSI enable/disable feature.

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Kashyap, Desai 2009-01-08 14:27:16 +05:30 committed by James Bottomley
parent fd7a253311
commit e382968ba6
1 changed files with 37 additions and 13 deletions
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50
drivers/message/fusion/mptbase.c
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@ -79,9 +79,22 @@ MODULE_VERSION(my_VERSION);
/*
* cmd line parameters
*/
static int mpt_msi_enable = -1;
module_param(mpt_msi_enable, int, 0);
MODULE_PARM_DESC(mpt_msi_enable, " MSI Support Enable (default=0)");
static int mpt_msi_enable_spi;
module_param(mpt_msi_enable_spi, int, 0);
MODULE_PARM_DESC(mpt_msi_enable_spi, " Enable MSI Support for SPI \
controllers (default=0)");
static int mpt_msi_enable_fc;
module_param(mpt_msi_enable_fc, int, 0);
MODULE_PARM_DESC(mpt_msi_enable_fc, " Enable MSI Support for FC \
controllers (default=0)");
static int mpt_msi_enable_sas;
module_param(mpt_msi_enable_sas, int, 1);
MODULE_PARM_DESC(mpt_msi_enable_sas, " Enable MSI Support for SAS \
controllers (default=1)");
static int mpt_channel_mapping;
module_param(mpt_channel_mapping, int, 0);
@ -91,7 +104,9 @@ static int mpt_debug_level;
static int mpt_set_debug_level(const char *val, struct kernel_param *kp);
module_param_call(mpt_debug_level, mpt_set_debug_level, param_get_int,
&mpt_debug_level, 0600);
MODULE_PARM_DESC(mpt_debug_level, " debug level - refer to mptdebug.h - (default=0)");
MODULE_PARM_DESC(mpt_debug_level, " debug level - refer to mptdebug.h \
- (default=0)");
#ifdef MFCNT
static int mfcounter = 0;
@ -1751,16 +1766,25 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
ioc->bus_type = SAS;
}
if (mpt_msi_enable == -1) {
/* Enable on SAS, disable on FC and SPI */
if (ioc->bus_type == SAS)
ioc->msi_enable = 1;
else
ioc->msi_enable = 0;
} else
/* follow flag: 0 - disable; 1 - enable */
ioc->msi_enable = mpt_msi_enable;
switch (ioc->bus_type) {
case SAS:
ioc->msi_enable = mpt_msi_enable_sas;
break;
case SPI:
ioc->msi_enable = mpt_msi_enable_spi;
break;
case FC:
ioc->msi_enable = mpt_msi_enable_fc;
break;
default:
ioc->msi_enable = 0;
break;
}
if (ioc->errata_flag_1064)
pci_disable_io_access(pdev);