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| author | Christof Schmitt <christof.schmitt@de.ibm.com> | 2008-07-02 10:56:34 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-12 15:22:34 +0200 |
| commit | 5d4e226246331087799a01c267ec72e5931ff190 (patch) | |
| tree | 4e9c740de12db68fa5594e3b8c83bf64461fbed8 /drivers/s390/scsi/zfcp_qdio.c | |
| parent | [SCSI] zfcp: Adapter reopen for large number of unsolicited status (diff) | |
| download | linux-5d4e226246331087799a01c267ec72e5931ff190.tar.xz linux-5d4e226246331087799a01c267ec72e5931ff190.zip | |
[SCSI] zfcp: Small QDIO cleanups
QBUFF_PER_PAGE is only used inside the qdio module, so move it to
zfcp_qdio.c
zfcp_qdio_zero_sbals is now only used in the qdio module, so make it
static.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_qdio.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_qdio.c | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index bd6561d53589..b8ed42bb5c9e 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -11,6 +11,7 @@ /* FIXME(tune): free space should be one max. SBAL chain plus what? */ #define ZFCP_QDIO_PCI_INTERVAL (QDIO_MAX_BUFFERS_PER_Q \ - (ZFCP_MAX_SBALS_PER_REQ + 4)) +#define QBUFF_PER_PAGE (PAGE_SIZE / sizeof(struct qdio_buffer)) static int zfcp_qdio_buffers_enqueue(struct qdio_buffer **sbal) { @@ -63,6 +64,16 @@ static void zfcp_qdio_handler_error(struct zfcp_adapter *adapter, u8 id) ZFCP_STATUS_COMMON_ERP_FAILED, id, NULL); } +static void zfcp_qdio_zero_sbals(struct qdio_buffer *sbal[], int first, int cnt) +{ + int i, sbal_idx; + + for (i = first; i < first + cnt; i++) { + sbal_idx = i % QDIO_MAX_BUFFERS_PER_Q; + memset(sbal[sbal_idx], 0, sizeof(struct qdio_buffer)); + } +} + static void zfcp_qdio_int_req(struct ccw_device *cdev, unsigned int status, unsigned int qdio_err, unsigned int siga_err, unsigned int queue_no, int first, int count, @@ -366,22 +377,6 @@ int zfcp_qdio_send(struct zfcp_fsf_req *fsf_req) } /** - * zfcp_qdio_zero_sbals - zero all sbals of the specified area and queue - * @buf: pointer to array of SBALS - * @first: integer specifying the SBAL number to start - * @count: integer specifying the number of SBALS to process - */ -void zfcp_qdio_zero_sbals(struct qdio_buffer *sbal[], int first, int count) -{ - int i, sbal_idx; - - for (i = first; i < first + count; i++) { - sbal_idx = i % QDIO_MAX_BUFFERS_PER_Q; - memset(sbal[sbal_idx], 0, sizeof(struct qdio_buffer)); - } -} - -/** * zfcp_qdio_allocate - allocate queue memory and initialize QDIO data * @adapter: pointer to struct zfcp_adapter * Returns: -ENOMEM on memory allocation error or return value from |