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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2011-05-23 10:24:41 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-05-23 10:24:31 +0200 |
| commit | fca894edd7566f5c548598c8fad7f329278c23b4 (patch) | |
| tree | 75826c09cd13cc17c471a350b8e7baa875e4e5f5 /drivers/s390/cio | |
| parent | [S390] refactor page table functions for better pgste support (diff) | |
| download | linux-fca894edd7566f5c548598c8fad7f329278c23b4.tar.xz linux-fca894edd7566f5c548598c8fad7f329278c23b4.zip | |
[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>
Diffstat (limited to 'drivers/s390/cio')
| -rw-r--r-- | drivers/s390/cio/chsc.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 0689fcf23a11..75c3f1f8fd43 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -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; |