@@ -96,9 +96,6 @@ static int user_event_ack(struct hfi1_ctxtdata *, int, unsigned long);
static int set_ctxt_pkey(struct hfi1_ctxtdata *, unsigned, u16);
static int manage_rcvq(struct hfi1_ctxtdata *, unsigned, int);
static int vma_fault(struct vm_area_struct *, struct vm_fault *);
-static int exp_tid_setup(struct file *, struct hfi1_tid_info *);
-static int exp_tid_free(struct file *, struct hfi1_tid_info *);
-static void unlock_exp_tids(struct hfi1_ctxtdata *);
static const struct file_operations hfi1_file_ops = {
.owner = THIS_MODULE,
@@ -188,6 +185,7 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
struct hfi1_cmd cmd;
struct hfi1_user_info uinfo;
struct hfi1_tid_info tinfo;
+ unsigned long addr;
ssize_t consumed = 0, copy = 0, ret = 0;
void *dest = NULL;
__u64 user_val = 0;
@@ -219,6 +217,7 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
break;
case HFI1_CMD_TID_UPDATE:
case HFI1_CMD_TID_FREE:
+ case HFI1_CMD_TID_INVAL_READ:
copy = sizeof(tinfo);
dest = &tinfo;
break;
@@ -241,7 +240,6 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
must_be_root = 1; /* validate user */
copy = 0;
break;
- case HFI1_CMD_TID_INVAL_READ:
default:
ret = -EINVAL;
goto bail;
@@ -295,9 +293,8 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
sc_return_credits(uctxt->sc);
break;
case HFI1_CMD_TID_UPDATE:
- ret = exp_tid_setup(fp, &tinfo);
+ ret = hfi1_user_exp_rcv_setup(fp, &tinfo);
if (!ret) {
- unsigned long addr;
/*
* Copy the number of tidlist entries we used
* and the length of the buffer we registered.
@@ -312,8 +309,25 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
ret = -EFAULT;
}
break;
+ case HFI1_CMD_TID_INVAL_READ:
+ ret = hfi1_user_exp_rcv_invalid(fp, &tinfo);
+ if (ret)
+ break;
+ addr = (unsigned long)cmd.addr +
+ offsetof(struct hfi1_tid_info, tidcnt);
+ if (copy_to_user((void __user *)addr, &tinfo.tidcnt,
+ sizeof(tinfo.tidcnt)))
+ ret = -EFAULT;
+ break;
case HFI1_CMD_TID_FREE:
- ret = exp_tid_free(fp, &tinfo);
+ ret = hfi1_user_exp_rcv_clear(fp, &tinfo);
+ if (ret)
+ break;
+ addr = (unsigned long)cmd.addr +
+ offsetof(struct hfi1_tid_info, tidcnt);
+ if (copy_to_user((void __user *)addr, &tinfo.tidcnt,
+ sizeof(tinfo.tidcnt)))
+ ret = -EFAULT;
break;
case HFI1_CMD_RECV_CTRL:
ret = manage_rcvq(uctxt, fd->subctxt, (int)user_val);
@@ -779,12 +793,9 @@ static int hfi1_file_close(struct inode *inode, struct file *fp)
uctxt->pionowait = 0;
uctxt->event_flags = 0;
- hfi1_clear_tids(uctxt);
+ hfi1_user_exp_rcv_free(fdata);
hfi1_clear_ctxt_pkey(dd, uctxt->ctxt);
- if (uctxt->tid_pg_list)
- unlock_exp_tids(uctxt);
-
hfi1_stats.sps_ctxts--;
dd->freectxts++;
mutex_unlock(&hfi1_mutex);
@@ -1107,7 +1118,7 @@ static int user_init(struct file *fp)
ret = wait_event_interruptible(uctxt->wait,
!test_bit(HFI1_CTXT_MASTER_UNINIT,
&uctxt->event_flags));
- goto done;
+ goto expected;
}
/* initialize poll variables... */
@@ -1154,8 +1165,18 @@ static int user_init(struct file *fp)
clear_bit(HFI1_CTXT_MASTER_UNINIT, &uctxt->event_flags);
wake_up(&uctxt->wait);
}
- ret = 0;
+expected:
+ /*
+ * Expected receive has to be setup for all processes (including
+ * shared contexts). However, it has to be done after the master
+ * context has been fully configured as it depends on the
+ * eager/expected split of the RcvArray entries.
+ * Setting it up here ensures that the subcontexts will be waiting
+ * (due to the above wait_event_interruptible() until the master
+ * is setup.
+ */
+ ret = hfi1_user_exp_rcv_init(fp);
done:
return ret;
}
@@ -1225,46 +1246,6 @@ static int setup_ctxt(struct file *fp)
if (ret)
goto done;
}
- /* Setup Expected Rcv memories */
- uctxt->tid_pg_list = vzalloc(uctxt->expected_count *
- sizeof(struct page **));
- if (!uctxt->tid_pg_list) {
- ret = -ENOMEM;
- goto done;
- }
- uctxt->physshadow = vzalloc(uctxt->expected_count *
- sizeof(*uctxt->physshadow));
- if (!uctxt->physshadow) {
- ret = -ENOMEM;
- goto done;
- }
- /* allocate expected TID map and initialize the cursor */
- atomic_set(&uctxt->tidcursor, 0);
- uctxt->numtidgroups = uctxt->expected_count /
- dd->rcv_entries.group_size;
- uctxt->tidmapcnt = uctxt->numtidgroups / BITS_PER_LONG +
- !!(uctxt->numtidgroups % BITS_PER_LONG);
- uctxt->tidusemap = kzalloc_node(uctxt->tidmapcnt *
- sizeof(*uctxt->tidusemap),
- GFP_KERNEL, uctxt->numa_id);
- if (!uctxt->tidusemap) {
- ret = -ENOMEM;
- goto done;
- }
- /*
- * In case that the number of groups is not a multiple of
- * 64 (the number of groups in a tidusemap element), mark
- * the extra ones as used. This will effectively make them
- * permanently used and should never be assigned. Otherwise,
- * the code which checks how many free groups we have will
- * get completely confused about the state of the bits.
- */
- if (uctxt->numtidgroups % BITS_PER_LONG)
- uctxt->tidusemap[uctxt->tidmapcnt - 1] =
- ~((1ULL << (uctxt->numtidgroups %
- BITS_PER_LONG)) - 1);
- trace_hfi1_exp_tid_map(uctxt->ctxt, fd->subctxt, 0,
- uctxt->tidusemap, uctxt->tidmapcnt);
}
ret = hfi1_user_sdma_alloc_queues(uctxt, fp);
if (ret)
@@ -1503,367 +1484,6 @@ static int user_event_ack(struct hfi1_ctxtdata *uctxt, int subctxt,
return 0;
}
-#define num_user_pages(vaddr, len) \
- (1 + (((((unsigned long)(vaddr) + \
- (unsigned long)(len) - 1) & PAGE_MASK) - \
- ((unsigned long)vaddr & PAGE_MASK)) >> PAGE_SHIFT))
-
-/**
- * tzcnt - count the number of trailing zeros in a 64bit value
- * @value: the value to be examined
- *
- * Returns the number of trailing least significant zeros in the
- * the input value. If the value is zero, return the number of
- * bits of the value.
- */
-static inline u8 tzcnt(u64 value)
-{
- return value ? __builtin_ctzl(value) : sizeof(value) * 8;
-}
-
-static inline unsigned num_free_groups(unsigned long map, u16 *start)
-{
- unsigned free;
- u16 bitidx = *start;
-
- if (bitidx >= BITS_PER_LONG)
- return 0;
- /* "Turn off" any bits set before our bit index */
- map &= ~((1ULL << bitidx) - 1);
- free = tzcnt(map) - bitidx;
- while (!free && bitidx < BITS_PER_LONG) {
- /* Zero out the last set bit so we look at the rest */
- map &= ~(1ULL << bitidx);
- /*
- * Account for the previously checked bits and advance
- * the bit index. We don't have to check for bitidx
- * getting bigger than BITS_PER_LONG here as it would
- * mean extra instructions that we don't need. If it
- * did happen, it would push free to a negative value
- * which will break the loop.
- */
- free = tzcnt(map) - ++bitidx;
- }
- *start = bitidx;
- return free;
-}
-
-static int exp_tid_setup(struct file *fp, struct hfi1_tid_info *tinfo)
-{
- int ret = 0;
- struct hfi1_filedata *fd = fp->private_data;
- struct hfi1_ctxtdata *uctxt = fd->uctxt;
- struct hfi1_devdata *dd = uctxt->dd;
- unsigned tid, mapped = 0, npages, ngroups, exp_groups,
- tidpairs = uctxt->expected_count / 2;
- struct page **pages;
- unsigned long vaddr, tidmap[uctxt->tidmapcnt];
- dma_addr_t *phys;
- u32 tidlist[tidpairs], pairidx = 0, tidcursor;
- u16 useidx, idx, bitidx, tidcnt = 0;
-
- vaddr = tinfo->vaddr;
-
- if (offset_in_page(vaddr)) {
- ret = -EINVAL;
- goto bail;
- }
-
- npages = num_user_pages(vaddr, tinfo->length);
- if (!npages) {
- ret = -EINVAL;
- goto bail;
- }
- if (!access_ok(VERIFY_WRITE, (void __user *)vaddr,
- npages * PAGE_SIZE)) {
- dd_dev_err(dd, "Fail vaddr %p, %u pages, !access_ok\n",
- (void *)vaddr, npages);
- ret = -EFAULT;
- goto bail;
- }
-
- memset(tidmap, 0, sizeof(tidmap[0]) * uctxt->tidmapcnt);
- memset(tidlist, 0, sizeof(tidlist[0]) * tidpairs);
-
- exp_groups = uctxt->expected_count / dd->rcv_entries.group_size;
- /* which group set do we look at first? */
- tidcursor = atomic_read(&uctxt->tidcursor);
- useidx = (tidcursor >> 16) & 0xffff;
- bitidx = tidcursor & 0xffff;
-
- /*
- * Keep going until we've mapped all pages or we've exhausted all
- * RcvArray entries.
- * This iterates over the number of tidmaps + 1
- * (idx <= uctxt->tidmapcnt) so we check the bitmap which we
- * started from one more time for any free bits before the
- * starting point bit.
- */
- for (mapped = 0, idx = 0;
- mapped < npages && idx <= uctxt->tidmapcnt;) {
- u64 i, offset = 0;
- unsigned free, pinned, pmapped = 0, bits_used;
- u16 grp;
-
- /*
- * "Reserve" the needed group bits under lock so other
- * processes can't step in the middle of it. Once
- * reserved, we don't need the lock anymore since we
- * are guaranteed the groups.
- */
- mutex_lock(&uctxt->exp_lock);
- if (uctxt->tidusemap[useidx] == -1ULL ||
- bitidx >= BITS_PER_LONG) {
- /* no free groups in the set, use the next */
- useidx = (useidx + 1) % uctxt->tidmapcnt;
- idx++;
- bitidx = 0;
- mutex_unlock(&uctxt->exp_lock);
- continue;
- }
- ngroups = ((npages - mapped) / dd->rcv_entries.group_size) +
- !!((npages - mapped) % dd->rcv_entries.group_size);
-
- /*
- * If we've gotten here, the current set of groups does have
- * one or more free groups.
- */
- free = num_free_groups(uctxt->tidusemap[useidx], &bitidx);
- if (!free) {
- /*
- * Despite the check above, free could still come back
- * as 0 because we don't check the entire bitmap but
- * we start from bitidx.
- */
- mutex_unlock(&uctxt->exp_lock);
- continue;
- }
- bits_used = min(free, ngroups);
- tidmap[useidx] |= ((1ULL << bits_used) - 1) << bitidx;
- uctxt->tidusemap[useidx] |= tidmap[useidx];
- mutex_unlock(&uctxt->exp_lock);
-
- /*
- * At this point, we know where in the map we have free bits.
- * properly offset into the various "shadow" arrays and compute
- * the RcvArray entry index.
- */
- offset = ((useidx * BITS_PER_LONG) + bitidx) *
- dd->rcv_entries.group_size;
- pages = uctxt->tid_pg_list + offset;
- phys = uctxt->physshadow + offset;
- tid = uctxt->expected_base + offset;
-
- /* Calculate how many pages we can pin based on free bits */
- pinned = min((bits_used * dd->rcv_entries.group_size),
- (npages - mapped));
- /*
- * Now that we know how many free RcvArray entries we have,
- * we can pin that many user pages.
- */
- ret = hfi1_acquire_user_pages(vaddr + (mapped * PAGE_SIZE),
- pinned, true, pages);
- if (ret) {
- /*
- * We can't continue because the pages array won't be
- * initialized. This should never happen,
- * unless perhaps the user has mpin'ed the pages
- * themselves.
- */
- dd_dev_info(dd,
- "Failed to lock addr %p, %u pages: errno %d\n",
- (void *) vaddr, pinned, -ret);
- /*
- * Let go of the bits that we reserved since we are not
- * going to use them.
- */
- mutex_lock(&uctxt->exp_lock);
- uctxt->tidusemap[useidx] &=
- ~(((1ULL << bits_used) - 1) << bitidx);
- mutex_unlock(&uctxt->exp_lock);
- goto done;
- }
- /*
- * How many groups do we need based on how many pages we have
- * pinned?
- */
- ngroups = (pinned / dd->rcv_entries.group_size) +
- !!(pinned % dd->rcv_entries.group_size);
- /*
- * Keep programming RcvArray entries for all the <ngroups> free
- * groups.
- */
- for (i = 0, grp = 0; grp < ngroups; i++, grp++) {
- unsigned j;
- u32 pair_size = 0, tidsize;
- /*
- * This inner loop will program an entire group or the
- * array of pinned pages (which ever limit is hit
- * first).
- */
- for (j = 0; j < dd->rcv_entries.group_size &&
- pmapped < pinned; j++, pmapped++, tid++) {
- tidsize = PAGE_SIZE;
- phys[pmapped] = hfi1_map_page(dd->pcidev,
- pages[pmapped], 0,
- tidsize, PCI_DMA_FROMDEVICE);
- trace_hfi1_exp_rcv_set(uctxt->ctxt,
- fd->subctxt,
- tid, vaddr,
- phys[pmapped],
- pages[pmapped]);
- /*
- * Each RcvArray entry is programmed with one
- * page * worth of memory. This will handle
- * the 8K MTU as well as anything smaller
- * due to the fact that both entries in the
- * RcvTidPair are programmed with a page.
- * PSM currently does not handle anything
- * bigger than 8K MTU, so should we even worry
- * about 10K here?
- */
- hfi1_put_tid(dd, tid, PT_EXPECTED,
- phys[pmapped],
- ilog2(tidsize >> PAGE_SHIFT) + 1);
- pair_size += tidsize >> PAGE_SHIFT;
- EXP_TID_RESET(tidlist[pairidx], LEN, pair_size);
- if (!(tid % 2)) {
- tidlist[pairidx] |=
- EXP_TID_SET(IDX,
- (tid - uctxt->expected_base)
- / 2);
- tidlist[pairidx] |=
- EXP_TID_SET(CTRL, 1);
- tidcnt++;
- } else {
- tidlist[pairidx] |=
- EXP_TID_SET(CTRL, 2);
- pair_size = 0;
- pairidx++;
- }
- }
- /*
- * We've programmed the entire group (or as much of the
- * group as we'll use. Now, it's time to push it out...
- */
- flush_wc();
- }
- mapped += pinned;
- atomic_set(&uctxt->tidcursor,
- (((useidx & 0xffffff) << 16) |
- ((bitidx + bits_used) & 0xffffff)));
- }
- trace_hfi1_exp_tid_map(uctxt->ctxt, fd->subctxt, 0, uctxt->tidusemap,
- uctxt->tidmapcnt);
-
-done:
- /* If we've mapped anything, copy relevant info to user */
- if (mapped) {
- if (copy_to_user((void __user *)(unsigned long)tinfo->tidlist,
- tidlist, sizeof(tidlist[0]) * tidcnt)) {
- ret = -EFAULT;
- goto done;
- }
- /* copy TID info to user */
- if (copy_to_user((void __user *)(unsigned long)tinfo->tidmap,
- tidmap, sizeof(tidmap[0]) * uctxt->tidmapcnt))
- ret = -EFAULT;
- }
-bail:
- /*
- * Calculate mapped length. New Exp TID protocol does not "unwind" and
- * report an error if it can't map the entire buffer. It just reports
- * the length that was mapped.
- */
- tinfo->length = mapped * PAGE_SIZE;
- tinfo->tidcnt = tidcnt;
- return ret;
-}
-
-static int exp_tid_free(struct file *fp, struct hfi1_tid_info *tinfo)
-{
- struct hfi1_filedata *fd = fp->private_data;
- struct hfi1_ctxtdata *uctxt = fd->uctxt;
- struct hfi1_devdata *dd = uctxt->dd;
- unsigned long tidmap[uctxt->tidmapcnt];
- struct page **pages;
- dma_addr_t *phys;
- u16 idx, bitidx, tid;
- int ret = 0;
-
- if (copy_from_user(&tidmap, (void __user *)(unsigned long)
- tinfo->tidmap,
- sizeof(tidmap[0]) * uctxt->tidmapcnt)) {
- ret = -EFAULT;
- goto done;
- }
- for (idx = 0; idx < uctxt->tidmapcnt; idx++) {
- unsigned long map;
-
- bitidx = 0;
- if (!tidmap[idx])
- continue;
- map = tidmap[idx];
- while ((bitidx = tzcnt(map)) < BITS_PER_LONG) {
- int i, pcount = 0;
- struct page *pshadow[dd->rcv_entries.group_size];
- unsigned offset = ((idx * BITS_PER_LONG) + bitidx) *
- dd->rcv_entries.group_size;
-
- pages = uctxt->tid_pg_list + offset;
- phys = uctxt->physshadow + offset;
- tid = uctxt->expected_base + offset;
- for (i = 0; i < dd->rcv_entries.group_size;
- i++, tid++) {
- if (pages[i]) {
- hfi1_put_tid(dd, tid, PT_INVALID,
- 0, 0);
- trace_hfi1_exp_rcv_free(uctxt->ctxt,
- fd->subctxt,
- tid, phys[i],
- pages[i]);
- pci_unmap_page(dd->pcidev, phys[i],
- PAGE_SIZE, PCI_DMA_FROMDEVICE);
- pshadow[pcount] = pages[i];
- pages[i] = NULL;
- pcount++;
- phys[i] = 0;
- }
- }
- flush_wc();
- hfi1_release_user_pages(pshadow, pcount, true);
- clear_bit(bitidx, &uctxt->tidusemap[idx]);
- map &= ~(1ULL<<bitidx);
- }
- }
- trace_hfi1_exp_tid_map(uctxt->ctxt, fd->subctxt, 1, uctxt->tidusemap,
- uctxt->tidmapcnt);
-done:
- return ret;
-}
-
-static void unlock_exp_tids(struct hfi1_ctxtdata *uctxt)
-{
- struct hfi1_devdata *dd = uctxt->dd;
- unsigned tid;
-
- dd_dev_info(dd, "ctxt %u unlocking any locked expTID pages\n",
- uctxt->ctxt);
- for (tid = 0; tid < uctxt->expected_count; tid++) {
- struct page *p = uctxt->tid_pg_list[tid];
- dma_addr_t phys;
-
- if (!p)
- continue;
-
- phys = uctxt->physshadow[tid];
- uctxt->physshadow[tid] = 0;
- uctxt->tid_pg_list[tid] = NULL;
- pci_unmap_page(dd->pcidev, phys, PAGE_SIZE, PCI_DMA_FROMDEVICE);
- hfi1_release_user_pages(&p, 1, true);
- }
-}
-
static int set_ctxt_pkey(struct hfi1_ctxtdata *uctxt, unsigned subctxt,
u16 pkey)
{
@@ -240,18 +240,6 @@ struct hfi1_ctxtdata {
u32 expected_count;
/* index of first expected TID entry. */
u32 expected_base;
- /* cursor into the exp group sets */
- atomic_t tidcursor;
- /* number of exp TID groups assigned to the ctxt */
- u16 numtidgroups;
- /* size of exp TID group fields in tidusemap */
- u16 tidmapcnt;
- /* exp TID group usage bitfield array */
- unsigned long *tidusemap;
- /* pinned pages for exp sends, allocated at open */
- struct page **tid_pg_list;
- /* dma handles for exp tid pages */
- dma_addr_t *physshadow;
struct exp_tid_set tid_group_list;
struct exp_tid_set tid_used_list;
@@ -1660,8 +1648,6 @@ int get_platform_config_field(struct hfi1_devdata *dd,
enum platform_config_table_type_encoding table_type,
int table_index, int field_index, u32 *data, u32 len);
-dma_addr_t hfi1_map_page(struct pci_dev *, struct page *, unsigned long,
- size_t, int);
const char *get_unit_name(int unit);
/*
@@ -962,13 +962,10 @@ void hfi1_free_ctxtdata(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd)
kfree(rcd->egrbufs.buffers);
sc_free(rcd->sc);
- vfree(rcd->physshadow);
- vfree(rcd->tid_pg_list);
vfree(rcd->user_event_mask);
vfree(rcd->subctxt_uregbase);
vfree(rcd->subctxt_rcvegrbuf);
vfree(rcd->subctxt_rcvhdr_base);
- kfree(rcd->tidusemap);
kfree(rcd->opstats);
kfree(rcd);
}
@@ -153,92 +153,130 @@ TRACE_EVENT(hfi1_receive_interrupt,
)
);
-const char *print_u64_array(struct trace_seq *, u64 *, int);
+TRACE_EVENT(hfi1_exp_tid_reg,
+ TP_PROTO(unsigned ctxt, u16 subctxt, u32 rarr,
+ u32 npages, unsigned long va, unsigned long pa,
+ dma_addr_t dma),
+ TP_ARGS(ctxt, subctxt, rarr, npages, va, pa, dma),
+ TP_STRUCT__entry(
+ __field(unsigned, ctxt)
+ __field(u16, subctxt)
+ __field(u32, rarr)
+ __field(u32, npages)
+ __field(unsigned long, va)
+ __field(unsigned long, pa)
+ __field(dma_addr_t, dma)
+ ),
+ TP_fast_assign(
+ __entry->ctxt = ctxt;
+ __entry->subctxt = subctxt;
+ __entry->rarr = rarr;
+ __entry->npages = npages;
+ __entry->va = va;
+ __entry->pa = pa;
+ __entry->dma = dma;
+ ),
+ TP_printk("[%u:%u] entry:%u, %u pages @ 0x%lx, va:0x%lx dma:0x%llx",
+ __entry->ctxt,
+ __entry->subctxt,
+ __entry->rarr,
+ __entry->npages,
+ __entry->pa,
+ __entry->va,
+ __entry->dma
+ )
+ );
-TRACE_EVENT(hfi1_exp_tid_map,
- TP_PROTO(unsigned ctxt, u16 subctxt, int dir,
- unsigned long *maps, u16 count),
- TP_ARGS(ctxt, subctxt, dir, maps, count),
+TRACE_EVENT(hfi1_exp_tid_unreg,
+ TP_PROTO(unsigned ctxt, u16 subctxt, u32 rarr, u32 npages,
+ unsigned long va, unsigned long pa, dma_addr_t dma),
+ TP_ARGS(ctxt, subctxt, rarr, npages, va, pa, dma),
TP_STRUCT__entry(
__field(unsigned, ctxt)
__field(u16, subctxt)
- __field(int, dir)
- __field(u16, count)
- __dynamic_array(unsigned long, maps, sizeof(*maps) * count)
+ __field(u32, rarr)
+ __field(u32, npages)
+ __field(unsigned long, va)
+ __field(unsigned long, pa)
+ __field(dma_addr_t, dma)
),
TP_fast_assign(
__entry->ctxt = ctxt;
__entry->subctxt = subctxt;
- __entry->dir = dir;
- __entry->count = count;
- memcpy(__get_dynamic_array(maps), maps,
- sizeof(*maps) * count);
+ __entry->rarr = rarr;
+ __entry->npages = npages;
+ __entry->va = va;
+ __entry->pa = pa;
+ __entry->dma = dma;
),
- TP_printk("[%3u:%02u] %s tidmaps %s",
+ TP_printk("[%u:%u] entry:%u, %u pages @ 0x%lx, va:0x%lx dma:0x%llx",
__entry->ctxt,
__entry->subctxt,
- (__entry->dir ? ">" : "<"),
- print_u64_array(p, __get_dynamic_array(maps),
- __entry->count)
+ __entry->rarr,
+ __entry->npages,
+ __entry->pa,
+ __entry->va,
+ __entry->dma
)
);
-TRACE_EVENT(hfi1_exp_rcv_set,
- TP_PROTO(unsigned ctxt, u16 subctxt, u32 tid,
- unsigned long vaddr, u64 phys_addr, void *page),
- TP_ARGS(ctxt, subctxt, tid, vaddr, phys_addr, page),
+TRACE_EVENT(hfi1_exp_tid_inval,
+ TP_PROTO(unsigned ctxt, u16 subctxt, unsigned long va, u32 rarr,
+ u32 npages, dma_addr_t dma),
+ TP_ARGS(ctxt, subctxt, va, rarr, npages, dma),
TP_STRUCT__entry(
__field(unsigned, ctxt)
__field(u16, subctxt)
- __field(u32, tid)
- __field(unsigned long, vaddr)
- __field(u64, phys_addr)
- __field(void *, page)
+ __field(unsigned long, va)
+ __field(u32, rarr)
+ __field(u32, npages)
+ __field(dma_addr_t, dma)
),
TP_fast_assign(
__entry->ctxt = ctxt;
__entry->subctxt = subctxt;
- __entry->tid = tid;
- __entry->vaddr = vaddr;
- __entry->phys_addr = phys_addr;
- __entry->page = page;
+ __entry->va = va;
+ __entry->rarr = rarr;
+ __entry->npages = npages;
+ __entry->dma = dma;
),
- TP_printk("[%u:%u] TID %u, vaddrs 0x%lx, physaddr 0x%llx, pgp %p",
+ TP_printk("[%u:%u] entry:%u, %u pages @ 0x%lx dma: 0x%llx",
__entry->ctxt,
__entry->subctxt,
- __entry->tid,
- __entry->vaddr,
- __entry->phys_addr,
- __entry->page
+ __entry->rarr,
+ __entry->npages,
+ __entry->va,
+ __entry->dma
)
);
-TRACE_EVENT(hfi1_exp_rcv_free,
- TP_PROTO(unsigned ctxt, u16 subctxt, u32 tid,
- unsigned long phys, void *page),
- TP_ARGS(ctxt, subctxt, tid, phys, page),
+TRACE_EVENT(hfi1_mmu_invalidate,
+ TP_PROTO(unsigned ctxt, u16 subctxt, const char *type,
+ unsigned long start, unsigned long end),
+ TP_ARGS(ctxt, subctxt, type, start, end),
TP_STRUCT__entry(
__field(unsigned, ctxt)
__field(u16, subctxt)
- __field(u32, tid)
- __field(unsigned long, phys)
- __field(void *, page)
+ __string(type, type)
+ __field(unsigned long, start)
+ __field(unsigned long, end)
),
TP_fast_assign(
__entry->ctxt = ctxt;
__entry->subctxt = subctxt;
- __entry->tid = tid;
- __entry->phys = phys;
- __entry->page = page;
+ __assign_str(type, type);
+ __entry->start = start;
+ __entry->end = end;
),
- TP_printk("[%u:%u] freeing TID %u, 0x%lx, pgp %p",
+ TP_printk("[%3u:%02u] MMU Invalidate (%s) 0x%lx - 0x%lx",
__entry->ctxt,
__entry->subctxt,
- __entry->tid,
- __entry->phys,
- __entry->page
+ __get_str(type),
+ __entry->start,
+ __entry->end
)
);
+
#undef TRACE_SYSTEM
#define TRACE_SYSTEM hfi1_tx
@@ -902,6 +902,8 @@ static int set_rcvarray_entry(struct file *fp, unsigned long vaddr,
return -EFAULT;
}
hfi1_put_tid(dd, rcventry, PT_EXPECTED, phys, ilog2(npages) + 1);
+ trace_hfi1_exp_tid_reg(uctxt->ctxt, fd->subctxt, rcventry,
+ npages, node->virt, node->phys, phys);
return 0;
}
@@ -947,6 +949,10 @@ static void clear_tid_node(struct hfi1_filedata *fd, u16 subctxt,
struct hfi1_ctxtdata *uctxt = fd->uctxt;
struct hfi1_devdata *dd = uctxt->dd;
+ trace_hfi1_exp_tid_unreg(uctxt->ctxt, fd->subctxt, node->rcventry,
+ node->npages, node->virt, node->phys,
+ node->dma_addr);
+
hfi1_put_tid(dd, node->rcventry, PT_INVALID, 0, 0);
/*
* Make sure device has seen the write before we unpin the
@@ -1023,6 +1029,9 @@ static void mmu_notifier_mem_invalidate(struct mmu_notifier *mn,
struct mmu_rb_node *node;
unsigned long addr = start;
+ trace_hfi1_mmu_invalidate(uctxt->ctxt, fd->subctxt, mmu_types[type],
+ start, end);
+
spin_lock(&fd->rb_lock);
while (addr < end) {
node = mmu_rb_search_by_addr(root, addr);
@@ -1049,6 +1058,9 @@ static void mmu_notifier_mem_invalidate(struct mmu_notifier *mn,
if (node->freed)
continue;
+ trace_hfi1_exp_tid_inval(uctxt->ctxt, fd->subctxt, node->virt,
+ node->rcventry, node->npages,
+ node->dma_addr);
node->freed = true;
spin_lock(&fd->invalid_lock);
@@ -54,20 +54,6 @@
#include "hfi.h"
-/**
- * hfi1_map_page - a safety wrapper around pci_map_page()
- *
- */
-dma_addr_t hfi1_map_page(struct pci_dev *hwdev, struct page *page,
- unsigned long offset, size_t size, int direction)
-{
- dma_addr_t phys;
-
- phys = pci_map_page(hwdev, page, offset, size, direction);
-
- return phys;
-}
-
int hfi1_acquire_user_pages(unsigned long vaddr, size_t npages, bool writable,
struct page **pages)
{
@@ -66,7 +66,7 @@
* The major version changes when data structures change in an incompatible
* way. The driver must be the same for initialization to succeed.
*/
-#define HFI1_USER_SWMAJOR 4
+#define HFI1_USER_SWMAJOR 5
/*
* Minor version differences are always compatible
@@ -241,11 +241,6 @@ struct hfi1_tid_info {
__u32 tidcnt;
/* length of transfer buffer programmed by this request */
__u32 length;
- /*
- * pointer to bitmap of TIDs used for this call;
- * checked for being large enough at open
- */
- __u64 tidmap;
};
struct hfi1_cmd {