f5832fa2f8
Commands which are completed by the VIOS are placed on a CRQ in kernel memory for the ibmvfc driver to process. Each CRQ entry is 16 bytes. The ibmvfc driver reads the first 8 bytes to check if the entry is valid, then reads the next 8 bytes to get the handle, which is a pointer the completed command. This fixes an issue seen on Power 7 where the processor reordered the loads from memory, resulting in processing command completion with a stale handle. This could result in command timeouts, and also early completion of commands. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> |
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ibmvfc.c | ||
ibmvfc.h | ||
ibmvscsi.c | ||
ibmvscsi.h | ||
ibmvstgt.c | ||
iseries_vscsi.c | ||
Makefile | ||
rpa_vscsi.c | ||
viosrp.h |