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| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2011-01-05 12:47:54 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-05 12:47:28 +0100 |
| commit | 90adac58d1a4daf3560739ff5b76497d5ece16c4 (patch) | |
| tree | 6304b54c5b8200de91f3c151051a412a3536d0f4 /drivers/s390/cio/qdio_setup.c | |
| parent | 110da31709023de61735f2d8a3e52c20c23bb570 (diff) | |
| download | blackbird-op-linux-90adac58d1a4daf3560739ff5b76497d5ece16c4.tar.gz blackbird-op-linux-90adac58d1a4daf3560739ff5b76497d5ece16c4.zip | |
[S390] qdio: cleanup SIGA sync
Simplify the SIGA sync code and add unlikely annotations. In polling mode
SBALs may be accessed without interrupt, so call SIGA sync before every scan.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/qdio_setup.c')
| -rw-r--r-- | drivers/s390/cio/qdio_setup.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c index 635f35dc8466..89107d0938c4 100644 --- a/drivers/s390/cio/qdio_setup.c +++ b/drivers/s390/cio/qdio_setup.c @@ -197,14 +197,10 @@ static void process_ac_flags(struct qdio_irq *irq_ptr, unsigned char qdioac) irq_ptr->siga_flag.output = 1; if (qdioac & AC1_SIGA_SYNC_NEEDED) irq_ptr->siga_flag.sync = 1; - if (qdioac & AC1_AUTOMATIC_SYNC_ON_THININT) - irq_ptr->siga_flag.no_sync_ti = 1; - if (qdioac & AC1_AUTOMATIC_SYNC_ON_OUT_PCI) - irq_ptr->siga_flag.no_sync_out_pci = 1; - - if (irq_ptr->siga_flag.no_sync_out_pci && - irq_ptr->siga_flag.no_sync_ti) - irq_ptr->siga_flag.no_sync_out_ti = 1; + if (!(qdioac & AC1_AUTOMATIC_SYNC_ON_THININT)) + irq_ptr->siga_flag.sync_after_ai = 1; + if (!(qdioac & AC1_AUTOMATIC_SYNC_ON_OUT_PCI)) + irq_ptr->siga_flag.sync_out_after_pci = 1; } static void check_and_setup_qebsm(struct qdio_irq *irq_ptr, @@ -452,7 +448,7 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr, char s[80]; snprintf(s, 80, "qdio: %s %s on SC %x using " - "AI:%d QEBSM:%d PCI:%d TDD:%d SIGA:%s%s%s%s%s%s\n", + "AI:%d QEBSM:%d PCI:%d TDD:%d SIGA:%s%s%s%s%s\n", dev_name(&cdev->dev), (irq_ptr->qib.qfmt == QDIO_QETH_QFMT) ? "OSA" : ((irq_ptr->qib.qfmt == QDIO_ZFCP_QFMT) ? "ZFCP" : "HS"), @@ -464,9 +460,8 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr, (irq_ptr->siga_flag.input) ? "R" : " ", (irq_ptr->siga_flag.output) ? "W" : " ", (irq_ptr->siga_flag.sync) ? "S" : " ", - (!irq_ptr->siga_flag.no_sync_ti) ? "A" : " ", - (!irq_ptr->siga_flag.no_sync_out_ti) ? "O" : " ", - (!irq_ptr->siga_flag.no_sync_out_pci) ? "P" : " "); + (irq_ptr->siga_flag.sync_after_ai) ? "A" : " ", + (irq_ptr->siga_flag.sync_out_after_pci) ? "P" : " "); printk(KERN_INFO "%s", s); } |
