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NVME(4): Port to RTEMS

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Update #3821.
This commit is contained in:
Sebastian Huber 2018-09-03 14:21:14 +02:00
parent 0653b1db32
commit 53145c7232
10 changed files with 64 additions and 0 deletions
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1
buildset/default.ini
View File

@ -52,6 +52,7 @@ net80211 = off
netinet = on
netinet6 = on
netipsec = off
nvme = on
opencrypto = on
pci = on
pf = on

2
freebsd/sys/dev/nvme/nvme.c
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@ -73,6 +73,7 @@ nvme_init(void)
SYSINIT(nvme_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, nvme_init, NULL);
#ifndef __rtems__
static void
nvme_uninit(void)
{
@ -80,6 +81,7 @@ nvme_uninit(void)
}
SYSUNINIT(nvme_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, nvme_uninit, NULL);
#endif /* __rtems__ */
int
nvme_shutdown(device_t dev)

16
freebsd/sys/dev/nvme/nvme_ctrlr.c
View File

@ -61,8 +61,10 @@ nvme_ctrlr_construct_admin_qpair(struct nvme_controller *ctrlr)
qpair = &ctrlr->adminq;
qpair->id = 0;
#ifndef __rtems__
qpair->cpu = CPU_FFS(&cpuset_domain[ctrlr->domain]) - 1;
qpair->domain = ctrlr->domain;
#endif /* __rtems__ */
num_entries = NVME_ADMIN_ENTRIES;
TUNABLE_INT_FETCH("hw.nvme.admin_entries", &num_entries);
@ -146,6 +148,7 @@ nvme_ctrlr_construct_io_qpairs(struct nvme_controller *ctrlr)
* hence the 'i+1' here.
*/
qpair->id = i + 1;
#ifndef __rtems__
if (ctrlr->num_io_queues > 1) {
/* Find number of CPUs served by this queue. */
for (n = 1; QP(ctrlr, c + n) == i; n++)
@ -157,6 +160,7 @@ nvme_ctrlr_construct_io_qpairs(struct nvme_controller *ctrlr)
qpair->cpu = CPU_FFS(&cpuset_domain[ctrlr->domain]) - 1;
qpair->domain = ctrlr->domain;
}
#endif /* __rtems__ */
/*
* For I/O queues, use the controller-wide max_xfer_size
@ -172,7 +176,11 @@ nvme_ctrlr_construct_io_qpairs(struct nvme_controller *ctrlr)
* interrupt thread for this controller.
*/
if (ctrlr->num_io_queues > 1)
#ifndef __rtems__
bus_bind_intr(ctrlr->dev, qpair->res, qpair->cpu);
#else /* __rtems__ */
bus_bind_intr(ctrlr->dev, qpair->res, QP(ctrlr, i));
#endif /* __rtems__ */
}
return (0);
@ -1010,7 +1018,9 @@ nvme_ctrlr_passthrough_cmd(struct nvme_controller *ctrlr,
{
struct nvme_request *req;
struct mtx *mtx;
#ifndef __rtems__
struct buf *buf = NULL;
#endif /* __rtems__ */
int ret = 0;
vm_offset_t addr, end;
@ -1032,6 +1042,7 @@ nvme_ctrlr_passthrough_cmd(struct nvme_controller *ctrlr,
ctrlr->max_xfer_size);
return EIO;
}
#ifndef __rtems__
if (is_user_buffer) {
/*
* Ensure the user buffer is wired for the duration of
@ -1049,6 +1060,7 @@ nvme_ctrlr_passthrough_cmd(struct nvme_controller *ctrlr,
req = nvme_allocate_request_vaddr(buf->b_data, pt->len,
nvme_pt_done, pt);
} else
#endif /* __rtems__ */
req = nvme_allocate_request_vaddr(pt->buf, pt->len,
nvme_pt_done, pt);
} else
@ -1081,11 +1093,13 @@ nvme_ctrlr_passthrough_cmd(struct nvme_controller *ctrlr,
mtx_sleep(pt, mtx, PRIBIO, "nvme_pt", 0);
mtx_unlock(mtx);
#ifndef __rtems__
err:
if (buf != NULL) {
uma_zfree(pbuf_zone, buf);
PRELE(curproc);
}
#endif /* __rtems__ */
return (ret);
}
@ -1141,8 +1155,10 @@ nvme_ctrlr_construct(struct nvme_controller *ctrlr, device_t dev)
ctrlr->dev = dev;
mtx_init(&ctrlr->lock, "nvme ctrlr lock", NULL, MTX_DEF);
#ifndef __rtems__
if (bus_get_domain(dev, &ctrlr->domain) != 0)
ctrlr->domain = 0;
#endif /* __rtems__ */
cap_hi = nvme_mmio_read_4(ctrlr, cap_hi);
ctrlr->dstrd = NVME_CAP_HI_DSTRD(cap_hi) + 2;

12
freebsd/sys/dev/nvme/nvme_ns.c
View File

@ -49,6 +49,7 @@ __FBSDID("$FreeBSD$");
#include "nvme_private.h"
#ifndef __rtems__
static void nvme_bio_child_inbed(struct bio *parent, int bio_error);
static void nvme_bio_child_done(void *arg,
const struct nvme_completion *cpl);
@ -63,6 +64,7 @@ static struct bio ** nvme_construct_child_bios(struct bio *bp,
static int nvme_ns_split_bio(struct nvme_namespace *ns,
struct bio *bp,
uint32_t alignment);
#endif /* __rtems__ */
static int
nvme_ns_ioctl(struct cdev *cdev, u_long cmd, caddr_t arg, int flag,
@ -76,10 +78,12 @@ nvme_ns_ioctl(struct cdev *cdev, u_long cmd, caddr_t arg, int flag,
ctrlr = ns->ctrlr;
switch (cmd) {
#ifndef __rtems__
case NVME_IO_TEST:
case NVME_BIO_TEST:
nvme_ns_test(ns, cmd, arg);
break;
#endif /* __rtems__ */
case NVME_PASSTHROUGH_CMD:
pt = (struct nvme_pt_command *)arg;
return (nvme_ctrlr_passthrough_cmd(ctrlr, pt, ns->id,
@ -125,6 +129,7 @@ nvme_ns_close(struct cdev *dev __unused, int flags, int fmt __unused,
return (0);
}
#ifndef __rtems__
static void
nvme_ns_strategy_done(void *arg, const struct nvme_completion *cpl)
{
@ -161,15 +166,20 @@ nvme_ns_strategy(struct bio *bp)
}
}
#endif /* __rtems__ */
static struct cdevsw nvme_ns_cdevsw = {
.d_version = D_VERSION,
.d_flags = D_DISK,
#ifndef __rtems__
.d_read = physread,
.d_write = physwrite,
#endif /* __rtems__ */
.d_open = nvme_ns_open,
.d_close = nvme_ns_close,
#ifndef __rtems__
.d_strategy = nvme_ns_strategy,
#endif /* __rtems__ */
.d_ioctl = nvme_ns_ioctl
};
@ -240,6 +250,7 @@ nvme_ns_get_stripesize(struct nvme_namespace *ns)
return (ns->boundary);
}
#ifndef __rtems__
static void
nvme_ns_bio_done(void *arg, const struct nvme_completion *status)
{
@ -496,6 +507,7 @@ nvme_ns_bio_process(struct nvme_namespace *ns, struct bio *bp,
return (err);
}
#endif /* __rtems__ */
int
nvme_ns_ioctl_process(struct nvme_namespace *ns, u_long cmd, caddr_t arg,

4
freebsd/sys/dev/nvme/nvme_ns_cmd.c
View File

@ -52,6 +52,7 @@ nvme_ns_cmd_read(struct nvme_namespace *ns, void *payload, uint64_t lba,
return (0);
}
#ifndef __rtems__
int
nvme_ns_cmd_read_bio(struct nvme_namespace *ns, struct bio *bp,
nvme_cb_fn_t cb_fn, void *cb_arg)
@ -73,6 +74,7 @@ nvme_ns_cmd_read_bio(struct nvme_namespace *ns, struct bio *bp,
return (0);
}
#endif /* __rtems__ */
int
nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload, uint64_t lba,
@ -93,6 +95,7 @@ nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload, uint64_t lba,
return (0);
}
#ifndef __rtems__
int
nvme_ns_cmd_write_bio(struct nvme_namespace *ns, struct bio *bp,
nvme_cb_fn_t cb_fn, void *cb_arg)
@ -113,6 +116,7 @@ nvme_ns_cmd_write_bio(struct nvme_namespace *ns, struct bio *bp,
return (0);
}
#endif /* __rtems__ */
int
nvme_ns_cmd_deallocate(struct nvme_namespace *ns, void *payload,

4
freebsd/sys/dev/nvme/nvme_pci.c
View File

@ -262,7 +262,9 @@ nvme_ctrlr_setup_interrupts(struct nvme_controller *ctrlr)
{
device_t dev;
int force_intx, num_io_queues, per_cpu_io_queues;
#ifndef __rtems__
int min_cpus_per_ioq;
#endif /* __rtems__ */
int num_vectors_requested, num_vectors_allocated;
dev = ctrlr->dev;
@ -284,12 +286,14 @@ nvme_ctrlr_setup_interrupts(struct nvme_controller *ctrlr)
if (per_cpu_io_queues == 0)
num_io_queues = 1;
#ifndef __rtems__
min_cpus_per_ioq = smp_threads_per_core;
TUNABLE_INT_FETCH("hw.nvme.min_cpus_per_ioq", &min_cpus_per_ioq);
if (min_cpus_per_ioq > 1) {
num_io_queues = min(num_io_queues,
max(1, mp_ncpus / min_cpus_per_ioq));
}
#endif /* __rtems__ */
num_io_queues = min(num_io_queues, pci_msix_count(dev) - 1);

8
freebsd/sys/dev/nvme/nvme_private.h
View File

@ -168,15 +168,21 @@ struct nvme_tracker {
uint16_t cid;
uint64_t *prp;
#ifndef __rtems__
bus_addr_t prp_bus_addr;
#else /* __rtems__ */
uint64_t prp_bus_addr;
#endif /* __rtems__ */
};
struct nvme_qpair {
struct nvme_controller *ctrlr;
uint32_t id;
#ifndef __rtems__
int domain;
int cpu;
#endif /* __rtems__ */
uint16_t vector;
int rid;
@ -240,7 +246,9 @@ struct nvme_controller {
device_t dev;
struct mtx lock;
#ifndef __rtems__
int domain;
#endif /* __rtems__ */
uint32_t ready_timeout_in_ms;
uint32_t quirks;
#define QUIRK_DELAY_B4_CHK_RDY 1 /* Can't touch MMIO on disable */

9
freebsd/sys/dev/nvme/nvme_qpair.c
View File

@ -709,7 +709,9 @@ nvme_qpair_construct(struct nvme_qpair *qpair,
nvme_printf(ctrlr, "tag create failed %d\n", err);
goto out;
}
#ifndef __rtems__
bus_dma_tag_set_domain(qpair->dma_tag, qpair->domain);
#endif /* __rtems__ */
if (bus_dmamem_alloc(qpair->dma_tag, (void **)&queuemem,
BUS_DMA_NOWAIT, &qpair->queuemem_map)) {
@ -943,8 +945,13 @@ nvme_qpair_submit_tracker(struct nvme_qpair *qpair, struct nvme_tracker *tr)
ctrlr = qpair->ctrlr;
if (req->timeout)
#ifndef __rtems__
callout_reset_on(&tr->timer, ctrlr->timeout_period * hz,
nvme_timeout, tr, qpair->cpu);
#else /* __rtems__ */
callout_reset_on(&tr->timer, ctrlr->timeout_period * hz,
nvme_timeout, tr, -1);
#endif /* __rtems__ */
/* Copy the command from the tracker to the submission queue. */
memcpy(&qpair->cmd[qpair->sq_tail], &req->cmd, sizeof(req->cmd));
@ -1073,6 +1080,7 @@ _nvme_qpair_submit_request(struct nvme_qpair *qpair, struct nvme_request *req)
case NVME_REQUEST_NULL:
nvme_qpair_submit_tracker(tr->qpair, tr);
break;
#ifndef __rtems__
case NVME_REQUEST_BIO:
KASSERT(req->u.bio->bio_bcount <= qpair->ctrlr->max_xfer_size,
("bio->bio_bcount (%jd) exceeds max_xfer_size (%d)\n",
@ -1092,6 +1100,7 @@ _nvme_qpair_submit_request(struct nvme_qpair *qpair, struct nvme_request *req)
nvme_printf(qpair->ctrlr,
"bus_dmamap_load_ccb returned 0x%x!\n", err);
break;
#endif /* __rtems__ */
default:
panic("unknown nvme request type 0x%x\n", req->type);
break;

8
freebsd/sys/sys/malloc.h
View File

@ -185,7 +185,11 @@ void *contigmalloc_domainset(unsigned long size, struct malloc_type *type,
unsigned long alignment, vm_paddr_t boundary)
__malloc_like __result_use_check __alloc_size(1) __alloc_align(7);
void free(void *addr, struct malloc_type *type);
#ifndef __rtems__
void free_domain(void *addr, struct malloc_type *type);
#else /* __rtems__ */
#define free_domain(addr, type) free(addr, type)
#endif /* __rtems__ */
#ifndef __rtems__
void *malloc(size_t size, struct malloc_type *type, int flags) __malloc_like
__result_use_check __alloc_size(1);
@ -250,9 +254,13 @@ void *_bsd_malloc(size_t size, struct malloc_type *type, int flags)
_malloc_item; \
})
#ifndef __rtems__
void *malloc_domainset(size_t size, struct malloc_type *type,
struct domainset *ds, int flags) __malloc_like __result_use_check
__alloc_size(1);
#else /* __rtems__ */
#define malloc_domainset(size, type, ds, flags) malloc(size, type, flags)
#endif /* __rtems__ */
void *mallocarray(size_t nmemb, size_t size, struct malloc_type *type,
int flags) __malloc_like __result_use_check
__alloc_size2(1, 2);

0
rtemsbsd/include/rtems/bsd/local/opt_nvme.h Normal file
View File