[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 <kadesai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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e382968ba6
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@ -79,9 +79,22 @@ MODULE_VERSION(my_VERSION);
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/*
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* cmd line parameters
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*/
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static int mpt_msi_enable = -1;
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module_param(mpt_msi_enable, int, 0);
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MODULE_PARM_DESC(mpt_msi_enable, " MSI Support Enable (default=0)");
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static int mpt_msi_enable_spi;
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module_param(mpt_msi_enable_spi, int, 0);
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MODULE_PARM_DESC(mpt_msi_enable_spi, " Enable MSI Support for SPI \
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controllers (default=0)");
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static int mpt_msi_enable_fc;
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module_param(mpt_msi_enable_fc, int, 0);
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MODULE_PARM_DESC(mpt_msi_enable_fc, " Enable MSI Support for FC \
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controllers (default=0)");
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static int mpt_msi_enable_sas;
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module_param(mpt_msi_enable_sas, int, 1);
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MODULE_PARM_DESC(mpt_msi_enable_sas, " Enable MSI Support for SAS \
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controllers (default=1)");
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static int mpt_channel_mapping;
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module_param(mpt_channel_mapping, int, 0);
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@ -91,7 +104,9 @@ static int mpt_debug_level;
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static int mpt_set_debug_level(const char *val, struct kernel_param *kp);
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module_param_call(mpt_debug_level, mpt_set_debug_level, param_get_int,
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&mpt_debug_level, 0600);
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MODULE_PARM_DESC(mpt_debug_level, " debug level - refer to mptdebug.h - (default=0)");
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MODULE_PARM_DESC(mpt_debug_level, " debug level - refer to mptdebug.h \
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- (default=0)");
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#ifdef MFCNT
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static int mfcounter = 0;
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@ -1751,16 +1766,25 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
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ioc->bus_type = SAS;
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}
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if (mpt_msi_enable == -1) {
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/* Enable on SAS, disable on FC and SPI */
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if (ioc->bus_type == SAS)
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ioc->msi_enable = 1;
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else
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ioc->msi_enable = 0;
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} else
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/* follow flag: 0 - disable; 1 - enable */
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ioc->msi_enable = mpt_msi_enable;
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switch (ioc->bus_type) {
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case SAS:
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ioc->msi_enable = mpt_msi_enable_sas;
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break;
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case SPI:
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ioc->msi_enable = mpt_msi_enable_spi;
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break;
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case FC:
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ioc->msi_enable = mpt_msi_enable_fc;
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break;
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default:
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ioc->msi_enable = 0;
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break;
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}
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if (ioc->errata_flag_1064)
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pci_disable_io_access(pdev);
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