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IB/srpt: Introduce srpt_format_guid()

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Introduce a function for converting a GUID into an ASCII string. This
patch does not change any functionality.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bart Van Assche 2018-01-08 11:00:49 -08:00 committed by Doug Ledford
parent 3fa7f0e994
commit b14cb74479
1 changed files with 13 additions and 11 deletions
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24
drivers/infiniband/ulp/srpt/ib_srpt.c
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@ -524,6 +524,15 @@ static void srpt_mad_recv_handler(struct ib_mad_agent *mad_agent,
ib_free_recv_mad(mad_wc);
}
static int srpt_format_guid(char *buf, unsigned int size, const __be64 *guid)
{
const __be16 *g = (const __be16 *)guid;
return snprintf(buf, size, "%04x:%04x:%04x:%04x",
be16_to_cpu(g[0]), be16_to_cpu(g[1]),
be16_to_cpu(g[2]), be16_to_cpu(g[3]));
}
/**
* srpt_refresh_port - configure a HCA port
* @sport: SRPT HCA port.
@ -539,7 +548,6 @@ static int srpt_refresh_port(struct srpt_port *sport)
struct ib_mad_reg_req reg_req;
struct ib_port_modify port_modify;
struct ib_port_attr port_attr;
__be16 *guid;
int ret;
memset(&port_modify, 0, sizeof(port_modify));
@ -563,11 +571,8 @@ static int srpt_refresh_port(struct srpt_port *sport)
goto err_query_port;
sport->port_guid_wwn.priv = sport;
guid = (__be16 *)&sport->gid.global.interface_id;
snprintf(sport->port_guid, sizeof(sport->port_guid),
"%04x:%04x:%04x:%04x",
be16_to_cpu(guid[0]), be16_to_cpu(guid[1]),
be16_to_cpu(guid[2]), be16_to_cpu(guid[3]));
srpt_format_guid(sport->port_guid, sizeof(sport->port_guid),
&sport->gid.global.interface_id);
sport->port_gid_wwn.priv = sport;
snprintf(sport->port_gid, sizeof(sport->port_gid),
"0x%016llx%016llx",
@ -1998,7 +2003,6 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
struct srp_login_rej *rej;
struct ib_cm_rep_param *rep_param;
struct srpt_rdma_ch *ch, *tmp_ch;
__be16 *guid;
u32 it_iu_len;
int i, ret = 0;
@ -2150,10 +2154,8 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
goto destroy_ib;
}
guid = (__be16 *)&param->primary_path->dgid.global.interface_id;
snprintf(ch->ini_guid, sizeof(ch->ini_guid), "%04x:%04x:%04x:%04x",
be16_to_cpu(guid[0]), be16_to_cpu(guid[1]),
be16_to_cpu(guid[2]), be16_to_cpu(guid[3]));
srpt_format_guid(ch->ini_guid, sizeof(ch->ini_guid),
&param->primary_path->dgid.global.interface_id);
snprintf(ch->sess_name, sizeof(ch->sess_name), "0x%016llx%016llx",
be64_to_cpu(*(__be64 *)ch->i_port_id),
be64_to_cpu(*(__be64 *)(ch->i_port_id + 8)));