@@ -926,9 +926,32 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
MPI26_TOOLBOX_BACKEND_PCIE_LANE_MARGIN))
ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
data_in_dma, data_in_sz);
- else
+ else if (toolbox_request->Tool ==
+ MPI2_TOOLBOX_MEMORY_MOVE_TOOL) {
+ Mpi2ToolboxMemMoveRequest_t *mem_move_request =
+ (Mpi2ToolboxMemMoveRequest_t *)request;
+ Mpi2SGESimple64_t tmp, *src = NULL, *dst = NULL;
+
+ ioc->build_sg_mpi(ioc, psge, data_out_dma,
+ data_out_sz, data_in_dma, data_in_sz);
+ if (data_out_sz && !data_in_sz) {
+ dst =
+ (Mpi2SGESimple64_t *)&mem_move_request->SGL;
+ src = (void *)dst + ioc->sge_size;
+
+ memcpy(&tmp, src, ioc->sge_size);
+ memcpy(src, dst, ioc->sge_size);
+ memcpy(dst, &tmp, ioc->sge_size);
+ }
+ if (ioc->logging_level & MPT_DEBUG_TM) {
+ ioc_info(ioc,
+ "Mpi2ToolboxMemMoveRequest_t request msg\n");
+ _debug_dump_mf(mem_move_request,
+ ioc->request_sz/4);
+ }
+ } else
ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
- data_in_dma, data_in_sz);
+ data_in_dma, data_in_sz);
ioc->put_smid_default(ioc, smid);
break;
}
Host uses the Memory Move Tool to copy data from any source/destination combination of system memory and IOC memory. Memory Move Tool box request contains two SGE fields, First SGE field must contains the source buffer details described by an MPI Simple SGE. The second SGE field must contains the destination buffer details described by an MPI Simple SGE. Source -> Destination 1. IOC -> IOC (Both the SGE's will be filled by application) 2. HOST -> HOST (Both the SGE's will be filled by the host, application should give sgl_offset to first SGE offset) 3. IOC -> HOST (Application will fill the first SGE and set the sgl_offset to second SGE and hence driver fills the second SGE) 4. HOST -> IOC (Application will fill IOC buffer information in the first SGE and set the sgl_offset to second SGE. Then driver will fill the second SGE with Host buffer information and just before posting the command to the firmware, driver will swap these two SGEs so that first SGE contains the HOST buffer information and second SGE contains the IOC information. Driver has to take care only the 4th case, other three cases are by default supported by the current driver design. Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com> --- drivers/scsi/mpt3sas/mpt3sas_ctl.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-)