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author | James Smart <James.Smart@Emulex.Com> | 2006-08-17 08:00:43 -0400 |
---|---|---|
committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-08-19 13:43:10 -0700 |
commit | b8d08210126a7b769b857720a59721a453a57a1e (patch) | |
tree | d68487391ade14febcce5894e8e16d75e4224d4b /drivers/scsi/scsi_transport_fc.c | |
parent | f3d7271c5ac9029d19fc0252a85bc045334382cc (diff) | |
download | kernel_samsung_espresso10-b8d08210126a7b769b857720a59721a453a57a1e.zip kernel_samsung_espresso10-b8d08210126a7b769b857720a59721a453a57a1e.tar.gz kernel_samsung_espresso10-b8d08210126a7b769b857720a59721a453a57a1e.tar.bz2 |
[SCSI] fc transport: add fc_host system_hostname attribute and u64_to_wwn()
This patch updates the fc transport for the following:
- Addition of a new attribute "system_hostname" which can be
used to set the fully qualified hostname that the fc_host
is attached to. The fc_host can then register this string
as the FDMI-based host name attribute.
Note: for NPIV, a fc_host could be associated with a system which
is not the local system.
- Add the inline function u64_to_wwn(), which is the inverse of the
existing wwn_to_u64() function.
- Slight reorg, just to keep dynamic attributes with each other, etc
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/scsi_transport_fc.c')
-rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index c1c5cdf..79d31ca 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -301,8 +301,6 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev, fc_host->supported_classes = FC_COS_UNSPECIFIED; memset(fc_host->supported_fc4s, 0, sizeof(fc_host->supported_fc4s)); - memset(fc_host->symbolic_name, 0, - sizeof(fc_host->symbolic_name)); fc_host->supported_speeds = FC_PORTSPEED_UNKNOWN; fc_host->maxframe_size = -1; memset(fc_host->serial_number, 0, @@ -315,6 +313,8 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev, sizeof(fc_host->active_fc4s)); fc_host->speed = FC_PORTSPEED_UNKNOWN; fc_host->fabric_name = -1; + memset(fc_host->symbolic_name, 0, sizeof(fc_host->symbolic_name)); + memset(fc_host->system_hostname, 0, sizeof(fc_host->system_hostname)); fc_host->tgtid_bind_type = FC_TGTID_BIND_BY_WWPN; @@ -688,6 +688,25 @@ store_fc_host_##field(struct class_device *cdev, const char *buf, \ return count; \ } +#define fc_host_store_str_function(field, slen) \ +static ssize_t \ +store_fc_host_##field(struct class_device *cdev, const char *buf, \ + size_t count) \ +{ \ + struct Scsi_Host *shost = transport_class_to_shost(cdev); \ + struct fc_internal *i = to_fc_internal(shost->transportt); \ + unsigned int cnt=count; \ + \ + /* count may include a LF at end of string */ \ + if (buf[cnt-1] == '\n') \ + cnt--; \ + if (cnt > ((slen) - 1)) \ + return -EINVAL; \ + memcpy(fc_host_##field(shost), buf, cnt); \ + i->f->set_host_##field(shost); \ + return count; \ +} + #define fc_host_rd_attr(field, format_string, sz) \ fc_host_show_function(field, format_string, sz, ) \ static FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \ @@ -859,6 +878,12 @@ fc_host_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); fc_host_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long); fc_host_rd_attr(symbolic_name, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1); +fc_private_host_show_function(system_hostname, "%s\n", + FC_SYMBOLIC_NAME_SIZE + 1, ) +fc_host_store_str_function(system_hostname, FC_SYMBOLIC_NAME_SIZE) +static FC_CLASS_DEVICE_ATTR(host, system_hostname, S_IRUGO | S_IWUSR, + show_fc_host_system_hostname, store_fc_host_system_hostname); + /* Private Host Attributes */ @@ -1234,6 +1259,7 @@ fc_attach_transport(struct fc_function_template *ft) SETUP_HOST_ATTRIBUTE_RD(speed); SETUP_HOST_ATTRIBUTE_RD(fabric_name); SETUP_HOST_ATTRIBUTE_RD(symbolic_name); + SETUP_HOST_ATTRIBUTE_RW(system_hostname); /* Transport-managed attributes */ SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type); |