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[SCSI] aic7xxx: expose the bus setting to sysfs

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Read the transciever register and display in the host transport
properties.  I'm still not entirely sure what this does for multiple
transciever adapters (like some 160 ones) however, I suspect it
displays the transciever state of the switchable bus segment.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley 2006-06-10 10:49:07 -05:00
parent b9f051eb6c
commit b2d8bfe185
3 changed files with 92 additions and 7 deletions
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1
drivers/scsi/aic7xxx/aic7xxx.h
View File

@ -231,6 +231,7 @@ typedef enum {
AHC_TARGETMODE = 0x20000, /* Has tested target mode support */
AHC_MULTIROLE = 0x40000, /* Space for two roles at a time */
AHC_REMOVABLE = 0x80000, /* Hot-Swap supported */
AHC_HVD = 0x100000, /* HVD rather than SE */
AHC_AIC7770_FE = AHC_FENONE,
/*
* The real 7850 does not support Ultra modes, but there are

17
drivers/scsi/aic7xxx/aic7xxx_osm.c
View File

@ -2537,6 +2537,22 @@ static void ahc_linux_set_iu(struct scsi_target *starget, int iu)
}
#endif
static void ahc_linux_get_signalling(struct Scsi_Host *shost)
{
struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
u8 mode = ahc_inb(ahc, SBLKCTL);
if (mode & ENAB40)
spi_signalling(shost) = SPI_SIGNAL_LVD;
else if (mode & ENAB20)
spi_signalling(shost) =
ahc->features & AHC_HVD ?
SPI_SIGNAL_HVD :
SPI_SIGNAL_SE;
else
spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
}
static struct spi_function_template ahc_linux_transport_functions = {
.set_offset = ahc_linux_set_offset,
.show_offset = 1,
@ -2552,6 +2568,7 @@ static struct spi_function_template ahc_linux_transport_functions = {
.set_qas = ahc_linux_set_qas,
.show_qas = 1,
#endif
.get_signalling = ahc_linux_get_signalling,
};

81
drivers/scsi/aic7xxx/aic7xxx_pci.c
View File

@ -144,16 +144,22 @@ static ahc_device_setup_t ahc_aic785X_setup;
static ahc_device_setup_t ahc_aic7860_setup;
static ahc_device_setup_t ahc_apa1480_setup;
static ahc_device_setup_t ahc_aic7870_setup;
static ahc_device_setup_t ahc_aic7870h_setup;
static ahc_device_setup_t ahc_aha394X_setup;
static ahc_device_setup_t ahc_aha394Xh_setup;
static ahc_device_setup_t ahc_aha494X_setup;
static ahc_device_setup_t ahc_aha494Xh_setup;
static ahc_device_setup_t ahc_aha398X_setup;
static ahc_device_setup_t ahc_aic7880_setup;
static ahc_device_setup_t ahc_aic7880h_setup;
static ahc_device_setup_t ahc_aha2940Pro_setup;
static ahc_device_setup_t ahc_aha394XU_setup;
static ahc_device_setup_t ahc_aha394XUh_setup;
static ahc_device_setup_t ahc_aha398XU_setup;
static ahc_device_setup_t ahc_aic7890_setup;
static ahc_device_setup_t ahc_aic7892_setup;
static ahc_device_setup_t ahc_aic7895_setup;
static ahc_device_setup_t ahc_aic7895h_setup;
static ahc_device_setup_t ahc_aic7896_setup;
static ahc_device_setup_t ahc_aic7899_setup;
static ahc_device_setup_t ahc_aha29160C_setup;
@ -225,19 +231,19 @@ struct ahc_pci_identity ahc_pci_ident_table [] =
ID_AHA_2944,
ID_ALL_MASK,
"Adaptec 2944 SCSI adapter",
ahc_aic7870_setup
ahc_aic7870h_setup
},
{
ID_AHA_3944,
ID_ALL_MASK,
"Adaptec 3944 SCSI adapter",
ahc_aha394X_setup
ahc_aha394Xh_setup
},
{
ID_AHA_4944,
ID_ALL_MASK,
"Adaptec 4944 SCSI adapter",
ahc_aha494X_setup
ahc_aha494Xh_setup
},
/* aic7880 based controllers */
{
@ -256,13 +262,13 @@ struct ahc_pci_identity ahc_pci_ident_table [] =
ID_AHA_2944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2944 Ultra SCSI adapter",
ahc_aic7880_setup
ahc_aic7880h_setup
},
{
ID_AHA_3944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 3944 Ultra SCSI adapter",
ahc_aha394XU_setup
ahc_aha394XUh_setup
},
{
ID_AHA_398XU & ID_DEV_VENDOR_MASK,
@ -278,7 +284,7 @@ struct ahc_pci_identity ahc_pci_ident_table [] =
ID_AHA_4944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 4944 Ultra SCSI adapter",
ahc_aic7880_setup
ahc_aic7880h_setup
},
{
ID_AHA_2930U & ID_DEV_VENDOR_MASK,
@ -414,7 +420,7 @@ struct ahc_pci_identity ahc_pci_ident_table [] =
ID_AHA_3944AU,
ID_ALL_MASK,
"Adaptec 3944A Ultra SCSI adapter",
ahc_aic7895_setup
ahc_aic7895h_setup
},
{
ID_AIC7895_ARO,
@ -2120,6 +2126,16 @@ ahc_aic7870_setup(struct ahc_softc *ahc)
return (0);
}
static int
ahc_aic7870h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7870_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aha394X_setup(struct ahc_softc *ahc)
{
@ -2131,6 +2147,16 @@ ahc_aha394X_setup(struct ahc_softc *ahc)
return (error);
}
static int
ahc_aha394Xh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha394X_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aha398X_setup(struct ahc_softc *ahc)
{
@ -2153,6 +2179,16 @@ ahc_aha494X_setup(struct ahc_softc *ahc)
return (error);
}
static int
ahc_aha494Xh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha494X_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aic7880_setup(struct ahc_softc *ahc)
{
@ -2174,6 +2210,17 @@ ahc_aic7880_setup(struct ahc_softc *ahc)
return (0);
}
static int
ahc_aic7880h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7880_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aha2940Pro_setup(struct ahc_softc *ahc)
{
@ -2193,6 +2240,16 @@ ahc_aha394XU_setup(struct ahc_softc *ahc)
return (error);
}
static int
ahc_aha394XUh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha394XU_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aha398XU_setup(struct ahc_softc *ahc)
{
@ -2291,6 +2348,16 @@ ahc_aic7895_setup(struct ahc_softc *ahc)
return (0);
}
static int
ahc_aic7895h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7895_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aic7896_setup(struct ahc_softc *ahc)
{