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Major rewrite of DMA mapping code to reduce code duplication

Browse Source 
and to allow some debug and enhancements that will be easier
soon.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@679 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Dotan Barak
2009-02-23 00:13:25 +00:00
parent 3f355da360
commit 6880b800ef
11 changed files with 1076 additions and 2015 deletions
Download Patch File Download Diff File Expand all files Collapse all files
qla_isp/linux/isp_cb_ops.c
+6 -4
View File
@@ -767,9 +767,10 @@ isp_run_cmd(ispsoftc_t *isp, isp_xcmd_t *cmd)
struct scsi_device *dev = NULL;
struct scsi_cmnd *Cmnd = NULL;
struct Scsi_Host *host = NULL;
uint32_t nxti, optr, handle;
uint32_t handle;
uint8_t local[QENTRY_LEN];
ispreq_t *reqp;
void *qep;
int time, result = 0;
struct semaphore rsem;
unsigned long flags;
@@ -800,7 +801,8 @@ isp_run_cmd(ispsoftc_t *isp, isp_xcmd_t *cmd)
sema_init(&rsem, 0);
ISP_LOCKU_SOFTC(isp);
if (isp_getrqentry(isp, &nxti, &optr, (void *)&reqp)) {
qep = isp_getrqentry(isp);
if (qep == NULL) {
ISP_UNLKU_SOFTC(isp);
isp_prt(isp, ISP_LOGDEBUG0, "%s: Request Queue Overflow", __func__);
result = -ENOMEM;
@@ -881,7 +883,7 @@ isp_run_cmd(ispsoftc_t *isp, isp_xcmd_t *cmd)
Cmnd->sc_data_direction = SCSI_DATA_NONE;
}
result = ISP_DMASETUP(isp, Cmnd, reqp, &nxti, optr);
result = ISP_DMASETUP(isp, Cmnd, reqp);
switch (result) {
default:
isp_prt(isp, ISP_LOGWARN, "isp_run_cmd: dma setup returned %d", result);
@@ -891,7 +893,7 @@ isp_run_cmd(ispsoftc_t *isp, isp_xcmd_t *cmd)
result = -ENOMEM;
break;
case CMD_QUEUED:
ISP_ADD_REQUEST(isp, nxti);
ISP_SYNC_REQUEST(isp);
isp->isp_nactive++;
result = 0;
break;