From e382968ba618e016ff7922dff9a6140c2f9108c8 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Thu, 8 Jan 2009 14:27:16 +0530 Subject: [PATCH] [SCSI] mpt fusion: Add separate msi enable disable for FC,SPI,SAS 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 Signed-off-by: James Bottomley --- drivers/message/fusion/mptbase.c | 50 +++++++++++++++++++++++--------- 1 file changed, 37 insertions(+), 13 deletions(-) diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index c4e8b9aa382..787a12648db 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -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); -- 2.41.1