Re: git: 80b069913d49 - stable/14 - mpi3mr: Divert large WriteSame IOs to firmware if unmap and ndob bits are set
- Reply: Warner Losh : "Re: git: 80b069913d49 - stable/14 - mpi3mr: Divert large WriteSame IOs to firmware if unmap and ndob bits are set"
- In reply to: Warner Losh : "Re: git: 80b069913d49 - stable/14 - mpi3mr: Divert large WriteSame IOs to firmware if unmap and ndob bits are set"
- Go to: [ bottom of page ] [ top of archives ] [ this month ]
Date: Mon, 12 May 2025 06:43:49 UTC
Yes, thanks. Merge to releng/14.3? On Thu, 08 May 2025 17:44:59 +0200, Warner Losh wrote: > > I think that I've fixed this. > > Warner > > On Wed, May 7, 2025 at 6:41 AM Herbert J. Skuhra <herbert@gojira.at> wrote: > > > > On Wed, 30 Apr 2025 19:21:45 +0200, Warner Losh <imp@FreeBSD.org> wrote: > > > > > > The branch stable/14 has been updated by imp: > > > > > > URL: https://cgit.FreeBSD.org/src/commit/?id=80b069913d496bd73b0ea8e515b6bf3706530ea1 > > > > > > commit 80b069913d496bd73b0ea8e515b6bf3706530ea1 > > > Author: Chandrakanth patil <chandrakanth.patil@broadcom.com> > > > AuthorDate: 2024-06-06 08:38:52 +0000 > > > Commit: Warner Losh <imp@FreeBSD.org> > > > CommitDate: 2025-04-30 17:05:52 +0000 > > > > > > mpi3mr: Divert large WriteSame IOs to firmware if unmap and ndob bits are set > > > > > > Firmware advertises the transfer lenght for writesame commands to driver during init. > > > So for any writesame IOs with ndob and unmap bit set and transfer lengh is greater > > > than the max write same length specified by the firmware, then direct those commands > > > to firmware instead of hardware otherwise hardware will break. > > > > > > Reviewed by: imp > > > Approved by: imp > > > Differential revision: https://reviews.freebsd.org/D44452 > > > > > > (cherry picked from commit 3f3a15543a6721100dda0e4219eb48ecbe35731a) > > > --- > > > sys/dev/mpi3mr/mpi3mr.c | 16 ++++++++++++++++ > > > sys/dev/mpi3mr/mpi3mr.h | 2 ++ > > > sys/dev/mpi3mr/mpi3mr_cam.c | 35 +++++++++++++++++++++++++++++++++++ > > > sys/dev/mpi3mr/mpi3mr_cam.h | 1 + > > > sys/modules/mpi3mr/Makefile | 3 +++ > > > 5 files changed, 57 insertions(+) > > > > > > diff --git a/sys/dev/mpi3mr/mpi3mr.c b/sys/dev/mpi3mr/mpi3mr.c > > > index 03fea4bdfcc7..a7bc459c1db8 100644 > > > --- a/sys/dev/mpi3mr/mpi3mr.c > > > +++ b/sys/dev/mpi3mr/mpi3mr.c > > > @@ -2177,6 +2177,8 @@ static int mpi3mr_issue_iocinit(struct mpi3mr_softc *sc) > > > time_in_msec = (now.tv_sec * 1000 + now.tv_usec/1000); > > > iocinit_req.TimeStamp = htole64(time_in_msec); > > > > > > + iocinit_req.MsgFlags |= MPI3_IOCINIT_MSGFLAGS_WRITESAMEDIVERT_SUPPORTED; > > > + > > > init_completion(&sc->init_cmds.completion); > > > retval = mpi3mr_submit_admin_cmd(sc, &iocinit_req, > > > sizeof(iocinit_req)); > > > @@ -3340,6 +3342,19 @@ void mpi3mr_update_device(struct mpi3mr_softc *sc, > > > break; > > > } > > > > > > + switch (flags & MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_MASK) { > > > + case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_256_LB: > > > + tgtdev->ws_len = 256; > > > + break; > > > + case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_2048_LB: > > > + tgtdev->ws_len = 2048; > > > + break; > > > + case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_NO_LIMIT: > > > + default: > > > + tgtdev->ws_len = 0; > > > + break; > > > + } > > > + > > > switch (tgtdev->dev_type) { > > > case MPI3_DEVICE_DEVFORM_SAS_SATA: > > > { > > > @@ -5649,6 +5664,7 @@ static void mpi3mr_invalidate_devhandles(struct mpi3mr_softc *sc) > > > target->io_throttle_enabled = 0; > > > target->io_divert = 0; > > > target->throttle_group = NULL; > > > + target->ws_len = 0; > > > } > > > } > > > mtx_unlock_spin(&sc->target_lock); > > > diff --git a/sys/dev/mpi3mr/mpi3mr.h b/sys/dev/mpi3mr/mpi3mr.h > > > index 2f91b0b702dd..fa50ed035fc2 100644 > > > --- a/sys/dev/mpi3mr/mpi3mr.h > > > +++ b/sys/dev/mpi3mr/mpi3mr.h > > > @@ -232,6 +232,8 @@ extern char fmt_os_ver[16]; > > > > > > #define MPI3MR_PERIODIC_DELAY 1 /* 1 second heartbeat/watchdog check */ > > > > > > +#define WRITE_SAME_32 0x0d > > > + > > > struct completion { > > > unsigned int done; > > > struct mtx lock; > > > diff --git a/sys/dev/mpi3mr/mpi3mr_cam.c b/sys/dev/mpi3mr/mpi3mr_cam.c > > > index d4cb7e9265dd..dca194a5c8cd 100644 > > > --- a/sys/dev/mpi3mr/mpi3mr_cam.c > > > +++ b/sys/dev/mpi3mr/mpi3mr_cam.c > > > @@ -83,6 +83,7 @@ > > > #include "mpi3mr.h" > > > #include <sys/time.h> /* XXX for pcpu.h */ > > > #include <sys/pcpu.h> /* XXX for PCPU_GET */ > > > +#include <asm/unaligned.h> > > > > > > #define smp_processor_id() PCPU_GET(cpuid) > > > > > > @@ -102,6 +103,37 @@ extern void mpi3mr_add_sg_single(void *paddr, U8 flags, U32 length, > > > > > > static U32 event_count; > > > > > > +static > > > +inline void mpi3mr_divert_ws(Mpi3SCSIIORequest_t *req, > > > + struct ccb_scsiio *csio, > > > + U16 ws_len) > > > +{ > > > + U8 unmap = 0, ndob = 0; > > > + U32 num_blocks = 0; > > > + U8 opcode = scsiio_cdb_ptr(csio)[0]; > > > + U16 service_action = ((scsiio_cdb_ptr(csio)[8] << 8) | scsiio_cdb_ptr(csio)[9]); > > > + > > > + > > > + if (opcode == WRITE_SAME_16 || > > > + (opcode == VARIABLE_LEN_CDB && > > > + service_action == WRITE_SAME_32)) { > > > + > > > + int unmap_ndob_index = (opcode == WRITE_SAME_16) ? 1 : 10; > > > + > > > + unmap = scsiio_cdb_ptr(csio)[unmap_ndob_index] & 0x08; > > > + ndob = scsiio_cdb_ptr(csio)[unmap_ndob_index] & 0x01; > > > + num_blocks = get_unaligned_be32(scsiio_cdb_ptr(csio) + > > > + ((opcode == WRITE_SAME_16) ? 10 : 28)); > > > + > > > + /* Check conditions for diversion to firmware */ > > > + if (unmap && ndob && num_blocks > ws_len) { > > > + req->MsgFlags |= MPI3_SCSIIO_MSGFLAGS_DIVERT_TO_FIRMWARE; > > > + req->Flags = htole32(le32toh(req->Flags) | > > > + MPI3_SCSIIO_FLAGS_DIVERT_REASON_WRITE_SAME_TOO_LARGE); > > > + } > > > + } > > > +} > > > + > > > static void mpi3mr_prepare_sgls(void *arg, > > > bus_dma_segment_t *segs, int nsegs, int error) > > > { > > > @@ -1080,6 +1112,9 @@ mpi3mr_action_scsiio(struct mpi3mr_cam_softc *cam_sc, union ccb *ccb) > > > break; > > > } > > > > > > + if (targ->ws_len) > > > + mpi3mr_divert_ws(req, csio, targ->ws_len); > > > + > > > req->Flags = htole32(mpi_control); > > > > > > if (csio->ccb_h.flags & CAM_CDB_POINTER) > > > diff --git a/sys/dev/mpi3mr/mpi3mr_cam.h b/sys/dev/mpi3mr/mpi3mr_cam.h > > > index 3a0526217f86..115ce0c4b8d7 100644 > > > --- a/sys/dev/mpi3mr/mpi3mr_cam.h > > > +++ b/sys/dev/mpi3mr/mpi3mr_cam.h > > > @@ -121,6 +121,7 @@ struct mpi3mr_target { > > > struct mpi3mr_throttle_group_info *throttle_group; > > > uint64_t q_depth; > > > enum mpi3mr_target_state state; > > > + uint16_t ws_len; > > > }; > > > > > > struct mpi3mr_cam_softc { > > > diff --git a/sys/modules/mpi3mr/Makefile b/sys/modules/mpi3mr/Makefile > > > index 3f1f63a94ac3..39aa2e3f0ddd 100644 > > > --- a/sys/modules/mpi3mr/Makefile > > > +++ b/sys/modules/mpi3mr/Makefile > > > @@ -6,6 +6,9 @@ SRCS= mpi3mr_pci.c mpi3mr.c mpi3mr_cam.c mpi3mr_app.c > > > SRCS+= opt_cam.h > > > SRCS+= device_if.h bus_if.h pci_if.h > > > > > > +CFLAGS+= -I${SRCTOP}/sys/compat/linuxkpi/common/include > > > +DEBUG_FLAGS= -g > > ^^^^^^^^^^^^^^^^ > > > + > > > .include <bsd.kmod.mk> > > > > > > CWARNFLAGS.mpi3mr_sas.c= ${NO_WUNNEEDED_INTERNAL_DECL} > > > > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249068#c2 > > > > -- > > Herbert