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Convert the mps driver to use busdma templates

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This commit is contained in:
Scott Long 2020-09-11 22:27:35 +00:00
parent 1ea95ba231
commit 1002529ea9
3 changed files with 46 additions and 89 deletions
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104
sys/dev/mps/mps.c
View File

@ -1278,6 +1278,7 @@ mps_alloc_queues(struct mps_softc *sc)
static int
mps_alloc_hw_queues(struct mps_softc *sc)
{
bus_dma_tag_template_t t;
bus_addr_t queues_busaddr;
uint8_t *queues;
int qsize, fqsize, pqsize;
@ -1299,17 +1300,12 @@ mps_alloc_hw_queues(struct mps_softc *sc)
pqsize = sc->pqdepth * 8;
qsize = fqsize + pqsize;
if (bus_dma_tag_create( sc->mps_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->mps_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)) {
mps_dprint(sc, MPS_ERROR, "Cannot allocate queues DMA tag\n");
return (ENOMEM);
}
@ -1337,6 +1333,7 @@ mps_alloc_hw_queues(struct mps_softc *sc)
static int
mps_alloc_replies(struct mps_softc *sc)
{
bus_dma_tag_template_t t;
int rsize, num_replies;
/* Store the reply frame size in bytes rather than as 32bit words */
@ -1350,17 +1347,12 @@ mps_alloc_replies(struct mps_softc *sc)
num_replies = max(sc->fqdepth, sc->num_replies);
rsize = sc->replyframesz * num_replies;
if (bus_dma_tag_create( sc->mps_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->mps_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)) {
mps_dprint(sc, MPS_ERROR, "Cannot allocate replies DMA tag\n");
return (ENOMEM);
}
@ -1408,21 +1400,17 @@ mps_load_chains_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
static int
mps_alloc_requests(struct mps_softc *sc)
{
bus_dma_tag_template_t t;
struct mps_command *cm;
int i, rsize, nsegs;
rsize = sc->reqframesz * sc->num_reqs;
if (bus_dma_tag_create( sc->mps_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->mps_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)) {
mps_dprint(sc, MPS_ERROR, "Cannot allocate request DMA tag\n");
return (ENOMEM);
}
@ -1444,17 +1432,10 @@ mps_alloc_requests(struct mps_softc *sc)
return (ENOMEM);
}
rsize = sc->reqframesz * sc->num_chains;
if (bus_dma_tag_create( sc->mps_parent_dmat, /* parent */
16, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR_32BIT,/* 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_clone(&t, sc->req_dmat);
t.maxsize = t.maxsegsize = rsize;
t.nsegments = howmany(rsize, PAGE_SIZE);
if (bus_dma_template_tag(&t, &sc->chain_dmat)) {
mps_dprint(sc, MPS_ERROR, "Cannot allocate chain DMA tag\n");
return (ENOMEM);
}
@ -1472,17 +1453,10 @@ mps_alloc_requests(struct mps_softc *sc)
}
rsize = MPS_SENSE_LEN * sc->num_reqs;
if (bus_dma_tag_create( sc->mps_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;
t.alignment = 1;
if (bus_dma_template_tag(&t, &sc->sense_dmat)) {
mps_dprint(sc, MPS_ERROR, "Cannot allocate sense DMA tag\n");
return (ENOMEM);
}
@ -1498,18 +1472,14 @@ mps_alloc_requests(struct mps_softc *sc)
(uintmax_t)sc->sense_busaddr, rsize);
nsegs = (sc->maxio / PAGE_SIZE) + 1;
if (bus_dma_tag_create( sc->mps_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_24BIT,/* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
busdma_lock_mutex, /* lockfunc */
&sc->mps_mtx, /* lockarg */
&sc->buffer_dmat)) {
bus_dma_template_init(&t, sc->mps_parent_dmat);
t.maxsize = BUS_SPACE_MAXSIZE_32BIT;
t.nsegments = nsegs;
t.maxsegsize = BUS_SPACE_MAXSIZE_24BIT;
t.flags = BUS_DMA_ALLOCNOW;
t.lockfunc = busdma_lock_mutex;
t.lockfuncarg = &sc->mps_mtx;
if (bus_dma_template_tag(&t, &sc->buffer_dmat)) {
mps_dprint(sc, MPS_ERROR, "Cannot allocate buffer DMA tag\n");
return (ENOMEM);
}

14
sys/dev/mps/mps_pci.c
View File

@ -185,6 +185,7 @@ mps_pci_probe(device_t dev)
static int
mps_pci_attach(device_t dev)
{
bus_dma_tag_template_t t;
struct mps_softc *sc;
struct mps_ident *m;
int error;
@ -211,17 +212,8 @@ mps_pci_attach(device_t dev)
sc->mps_bhandle = rman_get_bushandle(sc->mps_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->mps_parent_dmat)) {
bus_dma_template_init(&t, bus_get_dma_tag(dev));
if (bus_dma_template_tag(&t, &sc->mps_parent_dmat)) {
mps_printf(sc, "Cannot allocate parent DMA tag\n");
mps_pci_free(sc);
return (ENOMEM);

17
sys/dev/mps/mps_user.c
View File

@ -1346,6 +1346,7 @@ static int
mps_diag_register(struct mps_softc *sc, mps_fw_diag_register_t *diag_register,
uint32_t *return_code)
{
bus_dma_tag_template_t t;
mps_fw_diagnostic_buffer_t *pBuffer;
struct mps_busdma_context *ctx;
uint8_t extended_type, buffer_type, i;
@ -1408,17 +1409,11 @@ mps_diag_register(struct mps_softc *sc, mps_fw_diag_register_t *diag_register,
*return_code = MPS_FW_DIAG_ERROR_NO_BUFFER;
return (MPS_DIAG_FAILURE);
}
if (bus_dma_tag_create( sc->mps_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->mps_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)) {
mps_dprint(sc, MPS_ERROR,
"Cannot allocate FW diag buffer DMA tag\n");
*return_code = MPS_FW_DIAG_ERROR_NO_BUFFER;