git: e82c6e941e6a - stable/14 - mpi3mr: Remove unused fields in struct mpi3mr_cmd

The branch stable/14 has been updated by mav:

URL: https://cgit.FreeBSD.org/src/commit/?id=e82c6e941e6a9ca34ad493018bcd43257bb08061

commit e82c6e941e6a9ca34ad493018bcd43257bb08061
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2023-11-29 01:49:01 +0000
Commit:     Alexander Motin <mav@FreeBSD.org>
CommitDate: 2024-01-19 17:16:49 +0000

    mpi3mr: Remove unused fields in struct mpi3mr_cmd
    
    All of these fields are either unused, or just initialized. Remove
    them. This saves about 1MB of memory for the cards that I have which can
    do 8k transactions at once.
    
    Sponsored by:           Netflix
    Reviewed by:            mav, jhb
    Differential Revision:  https://reviews.freebsd.org/D42538
    
    (cherry picked from commit a2b046620c54db977196128b3c53da2704b9fd20)
---
 sys/dev/mpi3mr/mpi3mr.c | 3 ---
 sys/dev/mpi3mr/mpi3mr.h | 6 ------
 2 files changed, 9 deletions(-)

diff --git a/sys/dev/mpi3mr/mpi3mr.c b/sys/dev/mpi3mr/mpi3mr.c
index 592b0f02cdd7..7bb834430dbc 100644
--- a/sys/dev/mpi3mr/mpi3mr.c
+++ b/sys/dev/mpi3mr/mpi3mr.c
@@ -4986,12 +4986,9 @@ mpi3mr_get_command(struct mpi3mr_softc *sc)
 	cmd->data_dir = 0;
 	cmd->ccb = NULL;
 	cmd->targ = NULL;
-	cmd->max_segs = 0;
-	cmd->lun = 0;
 	cmd->state = MPI3MR_CMD_STATE_BUSY;
 	cmd->data = NULL;
 	cmd->length = 0;
-	cmd->out_len = 0;
 out:
 	mtx_unlock(&sc->cmd_pool_lock);
 	return cmd;
diff --git a/sys/dev/mpi3mr/mpi3mr.h b/sys/dev/mpi3mr/mpi3mr.h
index 1dc680beb47e..2226c747d3cf 100644
--- a/sys/dev/mpi3mr/mpi3mr.h
+++ b/sys/dev/mpi3mr/mpi3mr.h
@@ -457,19 +457,13 @@ struct mpi3mr_cmd {
 	union ccb			*ccb;
 	void				*data;
 	u_int				length;
-	u_int				out_len;
-	struct uio			uio;
-	struct iovec			iovec[MPI3MR_IOVEC_COUNT];
-	u_int				max_segs;
 	struct mpi3mr_target		*targ;
-	u_int	                	lun;
 	u_int				data_dir;
 	u_int				state;
 	bus_dmamap_t			dmamap;
 	struct scsi_sense_data		*sense;
 	struct callout			callout;
 	bool				callout_owner;
-	mpi3mr_cmd_callback_t		*timeout_handler;
 	U16				hosttag;
 	U8				req_qidx;
 	Mpi3SCSIIORequest_t		io_request;