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MFC r297854: Add couple missing memory barriers.

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This commit is contained in:
mav 2016-05-03 07:58:51 +00:00
parent a200cc391e
commit 94d37b829d
1 changed files with 3 additions and 1 deletions
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4
sys/dev/isp/isp.c
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@ -2802,12 +2802,13 @@ isp_getpdb(ispsoftc_t *isp, int chan, uint16_t id, isp_pdb_t *pdb)
isp_prt(isp, ISP_LOGERR, sacq);
return (-1);
}
MEMORYBARRIER(isp, SYNC_SFORDEV, 0, sizeof (un), chan);
MEMORYBARRIER(isp, SYNC_SFORDEV, 0, sizeof(un), chan);
isp_mboxcmd(isp, &mbs);
if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
FC_SCRATCH_RELEASE(isp, chan);
return (mbs.param[0] | (mbs.param[1] << 16));
}
MEMORYBARRIER(isp, SYNC_SFORCPU, 0, sizeof(un), chan);
if (IS_24XX(isp)) {
isp_get_pdb_24xx(isp, fcp->isp_scratch, &un.bill);
pdb->handle = un.bill.pdb_handle;
@ -2875,6 +2876,7 @@ isp_gethandles(ispsoftc_t *isp, int chan, uint16_t *handles, int *num, int loop)
FC_SCRATCH_RELEASE(isp, chan);
return (mbs.param[0] | (mbs.param[1] << 16));
}
MEMORYBARRIER(isp, SYNC_SFORCPU, 0, ISP_FC_SCRLEN, chan);
elp1 = fcp->isp_scratch;
elp3 = fcp->isp_scratch;
elp4 = fcp->isp_scratch;