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Convert the mpr driver to use busdma templates.

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This commit is contained in:
Scott Long 2019-12-24 14:50:17 +00:00
parent dfec0fb573
commit f5ead20562
3 changed files with 52 additions and 101 deletions
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122
sys/dev/mpr/mpr.c
View File

@ -1311,6 +1311,7 @@ mpr_alloc_queues(struct mpr_softc *sc)
static int
mpr_alloc_hw_queues(struct mpr_softc *sc)
{
bus_dma_tag_template_t t;
bus_addr_t queues_busaddr;
uint8_t *queues;
int qsize, fqsize, pqsize;
@ -1332,17 +1333,12 @@ mpr_alloc_hw_queues(struct mpr_softc *sc)
pqsize = sc->pqdepth * 8;
qsize = fqsize + pqsize;
if (bus_dma_tag_create( sc->mpr_parent_dmat, /* parent */
16, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
qsize, /* maxsize */
1, /* nsegments */
qsize, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->queues_dmat)) {
bus_dma_template_init(&t, sc->mpr_parent_dmat);
t.alignment = 16;
t.lowaddr = BUS_SPACE_MAXADDR_32BIT;
t.maxsize = t.maxsegsize = qsize;
t.nsegments = 1;
if (bus_dma_template_tag(&t, &sc->queues_dmat)) {
mpr_dprint(sc, MPR_ERROR, "Cannot allocate queues DMA tag\n");
return (ENOMEM);
}
@ -1370,6 +1366,7 @@ mpr_alloc_hw_queues(struct mpr_softc *sc)
static int
mpr_alloc_replies(struct mpr_softc *sc)
{
bus_dma_tag_template_t t;
int rsize, num_replies;
/* Store the reply frame size in bytes rather than as 32bit words */
@ -1383,17 +1380,12 @@ mpr_alloc_replies(struct mpr_softc *sc)
num_replies = max(sc->fqdepth, sc->num_replies);
rsize = sc->replyframesz * num_replies;
if (bus_dma_tag_create( sc->mpr_parent_dmat, /* parent */
4, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
rsize, /* maxsize */
1, /* nsegments */
rsize, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->reply_dmat)) {
bus_dma_template_init(&t, sc->mpr_parent_dmat);
t.alignment = 4;
t.lowaddr = BUS_SPACE_MAXADDR_32BIT;
t.maxsize = t.maxsegsize = rsize;
t.nsegments = 1;
if (bus_dma_template_tag(&t, &sc->reply_dmat)) {
mpr_dprint(sc, MPR_ERROR, "Cannot allocate replies DMA tag\n");
return (ENOMEM);
}
@ -1440,21 +1432,17 @@ mpr_load_chains_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
static int
mpr_alloc_requests(struct mpr_softc *sc)
{
bus_dma_tag_template_t t;
struct mpr_command *cm;
int i, rsize, nsegs;
rsize = sc->reqframesz * sc->num_reqs;
if (bus_dma_tag_create( sc->mpr_parent_dmat, /* parent */
16, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
rsize, /* maxsize */
1, /* nsegments */
rsize, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->req_dmat)) {
bus_dma_template_init(&t, sc->mpr_parent_dmat);
t.alignment = 16;
t.lowaddr = BUS_SPACE_MAXADDR_32BIT;
t.maxsize = t.maxsegsize = rsize;
t.nsegments = 1;
if (bus_dma_template_tag(&t, &sc->req_dmat)) {
mpr_dprint(sc, MPR_ERROR, "Cannot allocate request DMA tag\n");
return (ENOMEM);
}
@ -1476,17 +1464,11 @@ mpr_alloc_requests(struct mpr_softc *sc)
return (ENOMEM);
}
rsize = sc->chain_frame_size * sc->num_chains;
if (bus_dma_tag_create( sc->mpr_parent_dmat, /* parent */
16, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
rsize, /* maxsize */
howmany(rsize, PAGE_SIZE), /* nsegments */
rsize, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->chain_dmat)) {
bus_dma_template_init(&t, sc->mpr_parent_dmat);
t.alignment = 16;
t.maxsize = t.maxsegsize = rsize;
t.nsegments = howmany(rsize, PAGE_SIZE);
if (bus_dma_template_tag(&t, &sc->chain_dmat)) {
mpr_dprint(sc, MPR_ERROR, "Cannot allocate chain DMA tag\n");
return (ENOMEM);
}
@ -1504,17 +1486,9 @@ mpr_alloc_requests(struct mpr_softc *sc)
}
rsize = MPR_SENSE_LEN * sc->num_reqs;
if (bus_dma_tag_create( sc->mpr_parent_dmat, /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
rsize, /* maxsize */
1, /* nsegments */
rsize, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->sense_dmat)) {
bus_dma_template_clone(&t, sc->req_dmat);
t.maxsize = t.maxsegsize = rsize;
if (bus_dma_template_tag(&t, &sc->sense_dmat)) {
mpr_dprint(sc, MPR_ERROR, "Cannot allocate sense DMA tag\n");
return (ENOMEM);
}
@ -1540,18 +1514,12 @@ mpr_alloc_requests(struct mpr_softc *sc)
}
nsegs = (sc->maxio / PAGE_SIZE) + 1;
if (bus_dma_tag_create( sc->mpr_parent_dmat, /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
nsegs, /* nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
busdma_lock_mutex, /* lockfunc */
&sc->mpr_mtx, /* lockarg */
&sc->buffer_dmat)) {
bus_dma_template_init(&t, sc->mpr_parent_dmat);
t.nsegments = nsegs;
t.flags = BUS_DMA_ALLOCNOW;
t.lockfunc = busdma_lock_mutex;
t.lockfuncarg = &sc->mpr_mtx;
if (bus_dma_template_tag(&t, &sc->buffer_dmat)) {
mpr_dprint(sc, MPR_ERROR, "Cannot allocate buffer DMA tag\n");
return (ENOMEM);
}
@ -1608,9 +1576,10 @@ mpr_alloc_requests(struct mpr_softc *sc)
static int
mpr_alloc_nvme_prp_pages(struct mpr_softc *sc)
{
bus_dma_tag_template_t t;
struct mpr_prp_page *prp_page;
int PRPs_per_page, PRPs_required, pages_required;
int rsize, i;
struct mpr_prp_page *prp_page;
/*
* Assuming a MAX_IO_SIZE of 1MB and a PAGE_SIZE of 4k, the max number
@ -1637,17 +1606,12 @@ mpr_alloc_nvme_prp_pages(struct mpr_softc *sc)
sc->prp_buffer_size = PAGE_SIZE * pages_required;
rsize = sc->prp_buffer_size * NVME_QDEPTH;
if (bus_dma_tag_create( sc->mpr_parent_dmat, /* parent */
4, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
rsize, /* maxsize */
1, /* nsegments */
rsize, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->prp_page_dmat)) {
bus_dma_template_init(&t, sc->mpr_parent_dmat);
t.alignment = 4;
t.lowaddr = BUS_SPACE_MAXADDR_32BIT;
t.maxsize = t.maxsegsize = rsize;
t.nsegments = 1;
if (bus_dma_template_tag(&t, &sc->prp_page_dmat)) {
mpr_dprint(sc, MPR_ERROR, "Cannot allocate NVMe PRP DMA "
"tag\n");
return (ENOMEM);

14
sys/dev/mpr/mpr_pci.c
View File

@ -220,6 +220,7 @@ mpr_pci_probe(device_t dev)
static int
mpr_pci_attach(device_t dev)
{
bus_dma_tag_template_t t;
struct mpr_softc *sc;
struct mpr_ident *m;
int error, i;
@ -267,17 +268,8 @@ mpr_pci_attach(device_t dev)
sc->mpr_bhandle = rman_get_bushandle(sc->mpr_regs_resource);
/* Allocate the parent DMA tag */
if (bus_dma_tag_create( bus_get_dma_tag(dev), /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
BUS_SPACE_UNRESTRICTED, /* nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->mpr_parent_dmat)) {
bus_dma_template_init(&t, bus_get_dma_tag(dev));
if (bus_dma_template_tag(&t, &sc->mpr_parent_dmat)) {
mpr_printf(sc, "Cannot allocate parent DMA tag\n");
mpr_pci_free(sc);
return (ENOMEM);

17
sys/dev/mpr/mpr_user.c
View File

@ -1452,6 +1452,7 @@ static int
mpr_diag_register(struct mpr_softc *sc, mpr_fw_diag_register_t *diag_register,
uint32_t *return_code)
{
bus_dma_tag_template_t t;
mpr_fw_diagnostic_buffer_t *pBuffer;
struct mpr_busdma_context *ctx;
uint8_t extended_type, buffer_type, i;
@ -1514,17 +1515,11 @@ mpr_diag_register(struct mpr_softc *sc, mpr_fw_diag_register_t *diag_register,
*return_code = MPR_FW_DIAG_ERROR_NO_BUFFER;
return (MPR_DIAG_FAILURE);
}
if (bus_dma_tag_create( sc->mpr_parent_dmat, /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
buffer_size, /* maxsize */
1, /* nsegments */
buffer_size, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->fw_diag_dmat)) {
bus_dma_template_init(&t, sc->mpr_parent_dmat);
t.lowaddr = BUS_SPACE_MAXADDR_32BIT;
t.maxsize = t.maxsegsize = buffer_size;
t.nsegments = 1;
if (bus_dma_template_tag(&t, &sc->fw_diag_dmat)) {
mpr_dprint(sc, MPR_ERROR,
"Cannot allocate FW diag buffer DMA tag\n");
*return_code = MPR_FW_DIAG_ERROR_NO_BUFFER;