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[S390] chsc: process channel-path-availability information 

Update affected channel path descriptors when receiving channel path
availability information.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2011-05-23 10:24:41 +02:00 committed by Martin Schwidefsky
parent b2fa47e6bf
commit fca894edd7
1 changed files with 34 additions and 1 deletions
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35
drivers/s390/cio/chsc.c
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@ -326,6 +326,36 @@ static void chsc_process_sei_res_acc(struct chsc_sei_area *sei_area)
s390_process_res_acc(&link);
}
static void chsc_process_sei_chp_avail(struct chsc_sei_area *sei_area)
{
struct channel_path *chp;
struct chp_id chpid;
u8 *data;
int num;
CIO_CRW_EVENT(4, "chsc: channel path availability information\n");
if (sei_area->rs != 0)
return;
data = sei_area->ccdf;
chp_id_init(&chpid);
for (num = 0; num <= __MAX_CHPID; num++) {
if (!chp_test_bit(data, num))
continue;
chpid.id = num;
CIO_CRW_EVENT(4, "Update information for channel path "
"%x.%02x\n", chpid.cssid, chpid.id);
chp = chpid_to_chp(chpid);
if (!chp) {
chp_new(chpid);
continue;
}
mutex_lock(&chp->lock);
chsc_determine_base_channel_path_desc(chpid, &chp->desc);
mutex_unlock(&chp->lock);
}
}
struct chp_config_data {
u8 map[32];
u8 op;
@ -376,9 +406,12 @@ static void chsc_process_sei(struct chsc_sei_area *sei_area)
case 1: /* link incident*/
chsc_process_sei_link_incident(sei_area);
break;
case 2: /* i/o resource accessibiliy */
case 2: /* i/o resource accessibility */
chsc_process_sei_res_acc(sei_area);
break;
case 7: /* channel-path-availability information */
chsc_process_sei_chp_avail(sei_area);
break;
case 8: /* channel-path-configuration notification */
chsc_process_sei_chp_config(sei_area);
break;