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Code Issues Releases Activity

Move the busdma mapping functions to nvme_qpair.c.

Browse Source 
This removes nvme_uio.c completely.

Sponsored by:	Intel
This commit is contained in:
Jim Harris 2013-04-12 17:48:45 +00:00
parent 611060cab5
commit ca269f32ef
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=249420
5 changed files with 45 additions and 85 deletions
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37
sys/dev/nvme/nvme.c
View File

@ -229,43 +229,6 @@ nvme_dump_completion(struct nvme_completion *cpl)
cpl->status.m, cpl->status.dnr);
}
void
nvme_payload_map(void *arg, bus_dma_segment_t *seg, int nseg, int error)
{
struct nvme_tracker *tr = arg;
uint32_t cur_nseg;
/*
* If the mapping operation failed, return immediately. The caller
* is responsible for detecting the error status and failing the
* tracker manually.
*/
if (error != 0)
return;
/*
* Note that we specified PAGE_SIZE for alignment and max
* segment size when creating the bus dma tags. So here
* we can safely just transfer each segment to its
* associated PRP entry.
*/
tr->req->cmd.prp1 = seg[0].ds_addr;
if (nseg == 2) {
tr->req->cmd.prp2 = seg[1].ds_addr;
} else if (nseg > 2) {
cur_nseg = 1;
tr->req->cmd.prp2 = (uint64_t)tr->prp_bus_addr;
while (cur_nseg < nseg) {
tr->prp[cur_nseg-1] =
(uint64_t)seg[cur_nseg].ds_addr;
cur_nseg++;
}
}
nvme_qpair_submit_tracker(tr->qpair, tr);
}
static int
nvme_attach(device_t dev)
{

4
sys/dev/nvme/nvme_private.h
View File

@ -429,10 +429,6 @@ void nvme_ctrlr_cmd_set_async_event_config(struct nvme_controller *ctrlr,
void nvme_ctrlr_cmd_abort(struct nvme_controller *ctrlr, uint16_t cid,
uint16_t sqid, nvme_cb_fn_t cb_fn, void *cb_arg);
void nvme_payload_map(void *arg, bus_dma_segment_t *seg, int nseg,
int error);
void nvme_payload_map_uio(void *arg, bus_dma_segment_t *seg, int nseg,
bus_size_t mapsize, int error);
void nvme_completion_poll_cb(void *arg, const struct nvme_completion *cpl);
int nvme_ctrlr_construct(struct nvme_controller *ctrlr, device_t dev);

45
sys/dev/nvme/nvme_qpair.c
View File

@ -698,6 +698,51 @@ nvme_qpair_submit_tracker(struct nvme_qpair *qpair, struct nvme_tracker *tr)
qpair->num_cmds++;
}
static void
nvme_payload_map(void *arg, bus_dma_segment_t *seg, int nseg, int error)
{
struct nvme_tracker *tr = arg;
uint32_t cur_nseg;
/*
* If the mapping operation failed, return immediately. The caller
* is responsible for detecting the error status and failing the
* tracker manually.
*/
if (error != 0)
return;
/*
* Note that we specified PAGE_SIZE for alignment and max
* segment size when creating the bus dma tags. So here
* we can safely just transfer each segment to its
* associated PRP entry.
*/
tr->req->cmd.prp1 = seg[0].ds_addr;
if (nseg == 2) {
tr->req->cmd.prp2 = seg[1].ds_addr;
} else if (nseg > 2) {
cur_nseg = 1;
tr->req->cmd.prp2 = (uint64_t)tr->prp_bus_addr;
while (cur_nseg < nseg) {
tr->prp[cur_nseg-1] =
(uint64_t)seg[cur_nseg].ds_addr;
cur_nseg++;
}
}
nvme_qpair_submit_tracker(tr->qpair, tr);
}
static void
nvme_payload_map_uio(void *arg, bus_dma_segment_t *seg, int nseg,
bus_size_t mapsize, int error)
{
nvme_payload_map(arg, seg, nseg, error);
}
static void
_nvme_qpair_submit_request(struct nvme_qpair *qpair, struct nvme_request *req)
{

43
sys/dev/nvme/nvme_uio.c
View File

@ -1,43 +0,0 @@
/*-
* Copyright (C) 2012 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/uio.h>
#include "nvme_private.h"
void
nvme_payload_map_uio(void *arg, bus_dma_segment_t *seg, int nseg,
bus_size_t mapsize, int error)
{
nvme_payload_map(arg, seg, nseg, error);
}

1
sys/modules/nvme/Makefile
View File

@ -12,7 +12,6 @@ SRCS = nvme.c \
nvme_qpair.c \
nvme_sysctl.c \
nvme_test.c \
nvme_uio.c \
\
bus_if.h \
device_if.h \