diff options
| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2011-06-06 14:14:40 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-06-06 14:14:56 +0200 |
| commit | 3ec90878bade9280dee87c9e27d759f1cee07e70 (patch) | |
| tree | 54f07b9d840ee98e78370b8843374f317fa6f8c8 /drivers/s390/scsi/zfcp_qdio.h | |
| parent | 9950f8be3f379e36be73be958ec5cf6c15eac0b2 (diff) | |
| download | op-kernel-dev-3ec90878bade9280dee87c9e27d759f1cee07e70.zip op-kernel-dev-3ec90878bade9280dee87c9e27d759f1cee07e70.tar.gz | |
[S390] qdio: Split SBAL entry flags
The qdio SBAL entry flag is made-up of four different values that are
independent of one another. Some of the bits are reserved by the
hardware and should not be changed by qdio. Currently all four values
are overwritten since the SBAL entry flag is defined as an u32.
Split the SBAL entry flag into four u8's as defined by the hardware
and don't touch the reserved bits.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_qdio.h')
| -rw-r--r-- | drivers/s390/scsi/zfcp_qdio.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/s390/scsi/zfcp_qdio.h b/drivers/s390/scsi/zfcp_qdio.h index 2297d8d..54e22ac 100644 --- a/drivers/s390/scsi/zfcp_qdio.h +++ b/drivers/s390/scsi/zfcp_qdio.h @@ -67,7 +67,7 @@ struct zfcp_qdio { * @qdio_outb_usage: usage of outbound queue */ struct zfcp_qdio_req { - u32 sbtype; + u8 sbtype; u8 sbal_number; u8 sbal_first; u8 sbal_last; @@ -116,7 +116,7 @@ zfcp_qdio_sbale_curr(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req) */ static inline void zfcp_qdio_req_init(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, - unsigned long req_id, u32 sbtype, void *data, u32 len) + unsigned long req_id, u8 sbtype, void *data, u32 len) { struct qdio_buffer_element *sbale; int count = min(atomic_read(&qdio->req_q_free), @@ -131,7 +131,8 @@ void zfcp_qdio_req_init(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, sbale = zfcp_qdio_sbale_req(qdio, q_req); sbale->addr = (void *) req_id; - sbale->flags = SBAL_FLAGS0_COMMAND | sbtype; + sbale->eflags = 0; + sbale->sflags = SBAL_SFLAGS0_COMMAND | sbtype; if (unlikely(!data)) return; @@ -173,7 +174,7 @@ void zfcp_qdio_set_sbale_last(struct zfcp_qdio *qdio, struct qdio_buffer_element *sbale; sbale = zfcp_qdio_sbale_curr(qdio, q_req); - sbale->flags |= SBAL_FLAGS_LAST_ENTRY; + sbale->eflags |= SBAL_EFLAGS_LAST_ENTRY; } /** |
