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| author | James Bottomley <James.Bottomley@steeleye.com> | 2006-03-02 16:01:31 -0600 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-03-03 08:58:10 -0600 |
| commit | dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0 (patch) | |
| tree | f3f0ec521029685c6d5436b6770201111f80d8f9 | |
| parent | 39a112403fd4c6cd2215b5a59ff079e42eb824a4 (diff) | |
| download | linux-dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0.tar.gz linux-dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0.tar.bz2 linux-dd9fbb52134693f1394a928c05d5f3cd3fdaf6e0.zip | |
[SCSI] make some sas class properties optional
aic94xx doesn't have a use for the bay or enclosure identifiers.
Also, I think it's not going to need a get_linkerrors(), so wire up
all of these exported properties as conditional on the underlying
function support.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| -rw-r--r-- | drivers/scsi/scsi_transport_sas.c | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index fed39abeff86..434f3954aa87 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -273,7 +273,7 @@ show_sas_phy_##field(struct class_device *cdev, char *buf) \ if (!phy->local_attached) \ return -EINVAL; \ \ - error = i->f->get_linkerrors(phy); \ + error = i->f->get_linkerrors ? i->f->get_linkerrors(phy) : 0; \ if (error) \ return error; \ return snprintf(buf, 20, "%u\n", phy->field); \ @@ -814,6 +814,14 @@ static int sas_user_scan(struct Scsi_Host *shost, uint channel, i->rphy_attrs[count] = &i->private_rphy_attrs[count]; \ count++ +#define SETUP_OPTIONAL_RPORT_ATTRIBUTE(field, func) \ + i->private_rphy_attrs[count] = class_device_attr_##field; \ + i->private_rphy_attrs[count].attr.mode = S_IRUGO; \ + i->private_rphy_attrs[count].store = NULL; \ + i->rphy_attrs[count] = &i->private_rphy_attrs[count]; \ + if (i->f->func) \ + count++ + #define SETUP_PORT_ATTRIBUTE(field) \ i->private_phy_attrs[count] = class_device_attr_##field; \ i->private_phy_attrs[count].attr.mode = S_IRUGO; \ @@ -821,6 +829,14 @@ static int sas_user_scan(struct Scsi_Host *shost, uint channel, i->phy_attrs[count] = &i->private_phy_attrs[count]; \ count++ +#define SETUP_OPTIONAL_PORT_ATTRIBUTE(field, func) \ + i->private_phy_attrs[count] = class_device_attr_##field; \ + i->private_phy_attrs[count].attr.mode = S_IRUGO; \ + i->private_phy_attrs[count].store = NULL; \ + i->phy_attrs[count] = &i->private_phy_attrs[count]; \ + if (i->f->func) \ + count++ + #define SETUP_PORT_ATTRIBUTE_WRONLY(field) \ i->private_phy_attrs[count] = class_device_attr_##field; \ i->private_phy_attrs[count].attr.mode = S_IWUGO; \ @@ -828,6 +844,14 @@ static int sas_user_scan(struct Scsi_Host *shost, uint channel, i->phy_attrs[count] = &i->private_phy_attrs[count]; \ count++ +#define SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(field, func) \ + i->private_phy_attrs[count] = class_device_attr_##field; \ + i->private_phy_attrs[count].attr.mode = S_IWUGO; \ + i->private_phy_attrs[count].show = NULL; \ + i->phy_attrs[count] = &i->private_phy_attrs[count]; \ + if (i->f->func) \ + count++ + /** * sas_attach_transport -- instantiate SAS transport template @@ -883,8 +907,8 @@ sas_attach_transport(struct sas_function_template *ft) SETUP_PORT_ATTRIBUTE(running_disparity_error_count); SETUP_PORT_ATTRIBUTE(loss_of_dword_sync_count); SETUP_PORT_ATTRIBUTE(phy_reset_problem_count); - SETUP_PORT_ATTRIBUTE_WRONLY(link_reset); - SETUP_PORT_ATTRIBUTE_WRONLY(hard_reset); + SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(link_reset, phy_reset); + SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(hard_reset, phy_reset); i->phy_attrs[count] = NULL; count = 0; @@ -893,8 +917,10 @@ sas_attach_transport(struct sas_function_template *ft) SETUP_RPORT_ATTRIBUTE(rphy_device_type); SETUP_RPORT_ATTRIBUTE(rphy_sas_address); SETUP_RPORT_ATTRIBUTE(rphy_phy_identifier); - SETUP_RPORT_ATTRIBUTE(rphy_enclosure_identifier); - SETUP_RPORT_ATTRIBUTE(rphy_bay_identifier); + SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_enclosure_identifier, + get_enclosure_identifier); + SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_bay_identifier, + get_bay_identifier); i->rphy_attrs[count] = NULL; return &i->t; |