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path: root/drivers/infiniband/hw/cxgb3/iwch_provider.c
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Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_provider.c')
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_provider.c532
1 files changed, 396 insertions, 136 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index f0c77758937..811b24a539c 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -37,8 +37,12 @@
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/list.h>
+#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
+#include <linux/rtnetlink.h>
+#include <linux/inetdevice.h>
+#include <linux/slab.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -55,13 +59,7 @@
#include "iwch_provider.h"
#include "iwch_cm.h"
#include "iwch_user.h"
-
-static int iwch_modify_port(struct ib_device *ibdev,
- u8 port, int port_modify_mask,
- struct ib_port_modify *props)
-{
- return -ENOSYS;
-}
+#include "common.h"
static struct ib_ah *iwch_ah_create(struct ib_pd *pd,
struct ib_ah_attr *ah_attr)
@@ -100,7 +98,7 @@ static int iwch_dealloc_ucontext(struct ib_ucontext *context)
struct iwch_ucontext *ucontext = to_iwch_ucontext(context);
struct iwch_mm_entry *mm, *tmp;
- PDBG("%s context %p\n", __FUNCTION__, context);
+ PDBG("%s context %p\n", __func__, context);
list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
kfree(mm);
cxio_release_ucontext(&rhp->rdev, &ucontext->uctx);
@@ -114,7 +112,7 @@ static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev,
struct iwch_ucontext *context;
struct iwch_dev *rhp = to_iwch_dev(ibdev);
- PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
+ PDBG("%s ibdev %p\n", __func__, ibdev);
context = kzalloc(sizeof(*context), GFP_KERNEL);
if (!context)
return ERR_PTR(-ENOMEM);
@@ -128,7 +126,7 @@ static int iwch_destroy_cq(struct ib_cq *ib_cq)
{
struct iwch_cq *chp;
- PDBG("%s ib_cq %p\n", __FUNCTION__, ib_cq);
+ PDBG("%s ib_cq %p\n", __func__, ib_cq);
chp = to_iwch_cq(ib_cq);
remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid);
@@ -149,8 +147,10 @@ static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int ve
struct iwch_create_cq_resp uresp;
struct iwch_create_cq_req ureq;
struct iwch_ucontext *ucontext = NULL;
+ static int warned;
+ size_t resplen;
- PDBG("%s ib_dev %p entries %d\n", __FUNCTION__, ibdev, entries);
+ PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries);
rhp = to_iwch_dev(ibdev);
chp = kzalloc(sizeof(*chp), GFP_KERNEL);
if (!chp)
@@ -183,16 +183,21 @@ static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int ve
entries = roundup_pow_of_two(entries);
chp->cq.size_log2 = ilog2(entries);
- if (cxio_create_cq(&rhp->rdev, &chp->cq)) {
+ if (cxio_create_cq(&rhp->rdev, &chp->cq, !ucontext)) {
kfree(chp);
return ERR_PTR(-ENOMEM);
}
chp->rhp = rhp;
- chp->ibcq.cqe = (1 << chp->cq.size_log2) - 1;
+ chp->ibcq.cqe = 1 << chp->cq.size_log2;
spin_lock_init(&chp->lock);
+ spin_lock_init(&chp->comp_handler_lock);
atomic_set(&chp->refcnt, 1);
init_waitqueue_head(&chp->wait);
- insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid);
+ if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) {
+ cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
+ kfree(chp);
+ return ERR_PTR(-ENOMEM);
+ }
if (ucontext) {
struct iwch_mm_entry *mm;
@@ -208,15 +213,27 @@ static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int ve
uresp.key = ucontext->key;
ucontext->key += PAGE_SIZE;
spin_unlock(&ucontext->mmap_lock);
- if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
+ mm->key = uresp.key;
+ mm->addr = virt_to_phys(chp->cq.queue);
+ if (udata->outlen < sizeof uresp) {
+ if (!warned++)
+ printk(KERN_WARNING MOD "Warning - "
+ "downlevel libcxgb3 (non-fatal).\n");
+ mm->len = PAGE_ALIGN((1UL << uresp.size_log2) *
+ sizeof(struct t3_cqe));
+ resplen = sizeof(struct iwch_create_cq_resp_v0);
+ } else {
+ mm->len = PAGE_ALIGN(((1UL << uresp.size_log2) + 1) *
+ sizeof(struct t3_cqe));
+ uresp.memsize = mm->len;
+ uresp.reserved = 0;
+ resplen = sizeof uresp;
+ }
+ if (ib_copy_to_udata(udata, &uresp, resplen)) {
kfree(mm);
iwch_destroy_cq(&chp->ibcq);
return ERR_PTR(-EFAULT);
}
- mm->key = uresp.key;
- mm->addr = virt_to_phys(chp->cq.queue);
- mm->len = PAGE_ALIGN((1UL << uresp.size_log2) *
- sizeof (struct t3_cqe));
insert_mmap(ucontext, mm);
}
PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n",
@@ -232,7 +249,7 @@ static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
struct t3_cq oldcq, newcq;
int ret;
- PDBG("%s ib_cq %p cqe %d\n", __FUNCTION__, cq, cqe);
+ PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe);
/* We don't downsize... */
if (cqe <= cq->cqe)
@@ -280,7 +297,7 @@ static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq);
if (ret) {
printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n",
- __FUNCTION__, ret);
+ __func__, ret);
}
/* add user hooks here */
@@ -315,7 +332,7 @@ static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
chp->cq.rptr = rptr;
} else
spin_lock_irqsave(&chp->lock, flag);
- PDBG("%s rptr 0x%x\n", __FUNCTION__, chp->cq.rptr);
+ PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr);
err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
spin_unlock_irqrestore(&chp->lock, flag);
if (err < 0)
@@ -336,7 +353,7 @@ static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
struct iwch_ucontext *ucontext;
u64 addr;
- PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __FUNCTION__, vma->vm_pgoff,
+ PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
key, len);
if (vma->vm_start & (PAGE_SIZE-1)) {
@@ -389,7 +406,7 @@ static int iwch_deallocate_pd(struct ib_pd *pd)
php = to_iwch_pd(pd);
rhp = php->rhp;
- PDBG("%s ibpd %p pdid 0x%x\n", __FUNCTION__, pd, php->pdid);
+ PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
kfree(php);
return 0;
@@ -403,7 +420,7 @@ static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev,
u32 pdid;
struct iwch_dev *rhp;
- PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
+ PDBG("%s ibdev %p\n", __func__, ibdev);
rhp = (struct iwch_dev *) ibdev;
pdid = cxio_hal_get_pdid(rhp->rdev.rscp);
if (!pdid)
@@ -421,7 +438,7 @@ static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev,
return ERR_PTR(-EFAULT);
}
}
- PDBG("%s pdid 0x%0x ptr 0x%p\n", __FUNCTION__, pdid, php);
+ PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
return &php->ibpd;
}
@@ -431,7 +448,7 @@ static int iwch_dereg_mr(struct ib_mr *ib_mr)
struct iwch_mr *mhp;
u32 mmid;
- PDBG("%s ib_mr %p\n", __FUNCTION__, ib_mr);
+ PDBG("%s ib_mr %p\n", __func__, ib_mr);
/* There can be no memory windows */
if (atomic_read(&ib_mr->usecnt))
return -EINVAL;
@@ -441,12 +458,13 @@ static int iwch_dereg_mr(struct ib_mr *ib_mr)
mmid = mhp->attr.stag >> 8;
cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
mhp->attr.pbl_addr);
+ iwch_free_pbl(mhp);
remove_handle(rhp, &rhp->mmidr, mmid);
if (mhp->kva)
kfree((void *) (unsigned long) mhp->kva);
if (mhp->umem)
ib_umem_release(mhp->umem);
- PDBG("%s mmid 0x%x ptr %p\n", __FUNCTION__, mmid, mhp);
+ PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp);
kfree(mhp);
return 0;
}
@@ -466,7 +484,7 @@ static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
struct iwch_mr *mhp;
int ret;
- PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
+ PDBG("%s ib_pd %p\n", __func__, pd);
php = to_iwch_pd(pd);
rhp = php->rhp;
@@ -474,6 +492,8 @@ static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
if (!mhp)
return ERR_PTR(-ENOMEM);
+ mhp->rhp = rhp;
+
/* First check that we have enough alignment */
if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) {
ret = -EINVAL;
@@ -491,7 +511,17 @@ static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
if (ret)
goto err;
- mhp->rhp = rhp;
+ ret = iwch_alloc_pbl(mhp, npages);
+ if (ret) {
+ kfree(page_list);
+ goto err_pbl;
+ }
+
+ ret = iwch_write_pbl(mhp, page_list, npages, 0);
+ kfree(page_list);
+ if (ret)
+ goto err_pbl;
+
mhp->attr.pdid = php->pdid;
mhp->attr.zbva = 0;
@@ -501,12 +531,15 @@ static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
mhp->attr.len = (u32) total_size;
mhp->attr.pbl_size = npages;
- ret = iwch_register_mem(rhp, php, mhp, shift, page_list);
- kfree(page_list);
- if (ret) {
- goto err;
- }
+ ret = iwch_register_mem(rhp, php, mhp, shift);
+ if (ret)
+ goto err_pbl;
+
return &mhp->ibmr;
+
+err_pbl:
+ iwch_free_pbl(mhp);
+
err:
kfree(mhp);
return ERR_PTR(ret);
@@ -527,10 +560,10 @@ static int iwch_reregister_phys_mem(struct ib_mr *mr,
__be64 *page_list = NULL;
int shift = 0;
u64 total_size;
- int npages;
+ int npages = 0;
int ret;
- PDBG("%s ib_mr %p ib_pd %p\n", __FUNCTION__, mr, pd);
+ PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd);
/* There can be no memory windows */
if (atomic_read(&mr->usecnt))
@@ -559,7 +592,7 @@ static int iwch_reregister_phys_mem(struct ib_mr *mr,
return ret;
}
- ret = iwch_reregister_mem(rhp, php, &mh, shift, page_list, npages);
+ ret = iwch_reregister_mem(rhp, php, &mh, shift, npages);
kfree(page_list);
if (ret) {
return ret;
@@ -585,15 +618,14 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
{
__be64 *pages;
int shift, n, len;
- int i, j, k;
+ int i, k, entry;
int err = 0;
- struct ib_umem_chunk *chunk;
struct iwch_dev *rhp;
struct iwch_pd *php;
struct iwch_mr *mhp;
struct iwch_reg_user_mr_resp uresp;
-
- PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
+ struct scatterlist *sg;
+ PDBG("%s ib_pd %p\n", __func__, pd);
php = to_iwch_pd(pd);
rhp = php->rhp;
@@ -601,7 +633,9 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
if (!mhp)
return ERR_PTR(-ENOMEM);
- mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc);
+ mhp->rhp = rhp;
+
+ mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
if (IS_ERR(mhp->umem)) {
err = PTR_ERR(mhp->umem);
kfree(mhp);
@@ -610,45 +644,58 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
shift = ffs(mhp->umem->page_size) - 1;
- n = 0;
- list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
- n += chunk->nents;
+ n = mhp->umem->nmap;
- pages = kmalloc(n * sizeof(u64), GFP_KERNEL);
+ err = iwch_alloc_pbl(mhp, n);
+ if (err)
+ goto err;
+
+ pages = (__be64 *) __get_free_page(GFP_KERNEL);
if (!pages) {
err = -ENOMEM;
- goto err;
+ goto err_pbl;
}
i = n = 0;
- list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
- for (j = 0; j < chunk->nmap; ++j) {
- len = sg_dma_len(&chunk->page_list[j]) >> shift;
+ for_each_sg(mhp->umem->sg_head.sgl, sg, mhp->umem->nmap, entry) {
+ len = sg_dma_len(sg) >> shift;
for (k = 0; k < len; ++k) {
- pages[i++] = cpu_to_be64(sg_dma_address(
- &chunk->page_list[j]) +
+ pages[i++] = cpu_to_be64(sg_dma_address(sg) +
mhp->umem->page_size * k);
+ if (i == PAGE_SIZE / sizeof *pages) {
+ err = iwch_write_pbl(mhp, pages, i, n);
+ if (err)
+ goto pbl_done;
+ n += i;
+ i = 0;
+ }
}
- }
+ }
+
+ if (i)
+ err = iwch_write_pbl(mhp, pages, i, n);
+
+pbl_done:
+ free_page((unsigned long) pages);
+ if (err)
+ goto err_pbl;
- mhp->rhp = rhp;
mhp->attr.pdid = php->pdid;
mhp->attr.zbva = 0;
mhp->attr.perms = iwch_ib_to_tpt_access(acc);
mhp->attr.va_fbo = virt;
mhp->attr.page_size = shift - 12;
mhp->attr.len = (u32) length;
- mhp->attr.pbl_size = i;
- err = iwch_register_mem(rhp, php, mhp, shift, pages);
- kfree(pages);
+
+ err = iwch_register_mem(rhp, php, mhp, shift);
if (err)
- goto err;
+ goto err_pbl;
- if (udata && t3b_device(rhp)) {
+ if (udata && !t3a_device(rhp)) {
uresp.pbl_addr = (mhp->attr.pbl_addr -
- rhp->rdev.rnic_info.pbl_base) >> 3;
- PDBG("%s user resp pbl_addr 0x%x\n", __FUNCTION__,
+ rhp->rdev.rnic_info.pbl_base) >> 3;
+ PDBG("%s user resp pbl_addr 0x%x\n", __func__,
uresp.pbl_addr);
if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
@@ -660,6 +707,9 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return &mhp->ibmr;
+err_pbl:
+ iwch_free_pbl(mhp);
+
err:
ib_umem_release(mhp->umem);
kfree(mhp);
@@ -672,7 +722,7 @@ static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
u64 kva;
struct ib_mr *ibmr;
- PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
+ PDBG("%s ib_pd %p\n", __func__, pd);
/*
* T3 only supports 32 bits of size.
@@ -684,7 +734,7 @@ static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
return ibmr;
}
-static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
+static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd, enum ib_mw_type type)
{
struct iwch_dev *rhp;
struct iwch_pd *php;
@@ -693,6 +743,9 @@ static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
u32 stag = 0;
int ret;
+ if (type != IB_MW_TYPE_1)
+ return ERR_PTR(-EINVAL);
+
php = to_iwch_pd(pd);
rhp = php->rhp;
mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
@@ -708,8 +761,13 @@ static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
mhp->attr.type = TPT_MW;
mhp->attr.stag = stag;
mmid = (stag) >> 8;
- insert_handle(rhp, &rhp->mmidr, mhp, mmid);
- PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __FUNCTION__, mmid, mhp, stag);
+ mhp->ibmw.rkey = stag;
+ if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) {
+ cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
+ kfree(mhp);
+ return ERR_PTR(-ENOMEM);
+ }
+ PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
return &(mhp->ibmw);
}
@@ -724,11 +782,79 @@ static int iwch_dealloc_mw(struct ib_mw *mw)
mmid = (mw->rkey) >> 8;
cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
remove_handle(rhp, &rhp->mmidr, mmid);
+ PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp);
kfree(mhp);
- PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __FUNCTION__, mw, mmid, mhp);
return 0;
}
+static struct ib_mr *iwch_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth)
+{
+ struct iwch_dev *rhp;
+ struct iwch_pd *php;
+ struct iwch_mr *mhp;
+ u32 mmid;
+ u32 stag = 0;
+ int ret = 0;
+
+ php = to_iwch_pd(pd);
+ rhp = php->rhp;
+ mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
+ if (!mhp)
+ goto err;
+
+ mhp->rhp = rhp;
+ ret = iwch_alloc_pbl(mhp, pbl_depth);
+ if (ret)
+ goto err1;
+ mhp->attr.pbl_size = pbl_depth;
+ ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid,
+ mhp->attr.pbl_size, mhp->attr.pbl_addr);
+ if (ret)
+ goto err2;
+ mhp->attr.pdid = php->pdid;
+ mhp->attr.type = TPT_NON_SHARED_MR;
+ mhp->attr.stag = stag;
+ mhp->attr.state = 1;
+ mmid = (stag) >> 8;
+ mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
+ if (insert_handle(rhp, &rhp->mmidr, mhp, mmid))
+ goto err3;
+
+ PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
+ return &(mhp->ibmr);
+err3:
+ cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size,
+ mhp->attr.pbl_addr);
+err2:
+ iwch_free_pbl(mhp);
+err1:
+ kfree(mhp);
+err:
+ return ERR_PTR(ret);
+}
+
+static struct ib_fast_reg_page_list *iwch_alloc_fastreg_pbl(
+ struct ib_device *device,
+ int page_list_len)
+{
+ struct ib_fast_reg_page_list *page_list;
+
+ page_list = kmalloc(sizeof *page_list + page_list_len * sizeof(u64),
+ GFP_KERNEL);
+ if (!page_list)
+ return ERR_PTR(-ENOMEM);
+
+ page_list->page_list = (u64 *)(page_list + 1);
+ page_list->max_page_list_len = page_list_len;
+
+ return page_list;
+}
+
+static void iwch_free_fastreg_pbl(struct ib_fast_reg_page_list *page_list)
+{
+ kfree(page_list);
+}
+
static int iwch_destroy_qp(struct ib_qp *ib_qp)
{
struct iwch_dev *rhp;
@@ -753,7 +879,7 @@ static int iwch_destroy_qp(struct ib_qp *ib_qp)
cxio_destroy_qp(&rhp->rdev, &qhp->wq,
ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
- PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __FUNCTION__,
+ PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__,
ib_qp, qhp->wq.qpid, qhp);
kfree(qhp);
return 0;
@@ -772,7 +898,7 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
int wqsize, sqsize, rqsize;
struct iwch_ucontext *ucontext;
- PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
+ PDBG("%s ib_pd %p\n", __func__, pd);
if (attrs->qp_type != IB_QPT_RC)
return ERR_PTR(-EINVAL);
php = to_iwch_pd(pd);
@@ -804,7 +930,16 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
*/
sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
wqsize = roundup_pow_of_two(rqsize + sqsize);
- PDBG("%s wqsize %d sqsize %d rqsize %d\n", __FUNCTION__,
+
+ /*
+ * Kernel users need more wq space for fastreg WRs which can take
+ * 2 WR fragments.
+ */
+ ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
+ if (!ucontext && wqsize < (rqsize + (2 * sqsize)))
+ wqsize = roundup_pow_of_two(rqsize +
+ roundup_pow_of_two(attrs->cap.max_send_wr * 2));
+ PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__,
wqsize, sqsize, rqsize);
qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
if (!qhp)
@@ -812,14 +947,16 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
qhp->wq.size_log2 = ilog2(wqsize);
qhp->wq.rq_size_log2 = ilog2(rqsize);
qhp->wq.sq_size_log2 = ilog2(sqsize);
- ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
kfree(qhp);
return ERR_PTR(-ENOMEM);
}
+
attrs->cap.max_recv_wr = rqsize - 1;
attrs->cap.max_send_wr = sqsize;
+ attrs->cap.max_inline_data = T3_MAX_INLINE;
+
qhp->rhp = rhp;
qhp->attr.pd = php->pdid;
qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid;
@@ -846,7 +983,13 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
spin_lock_init(&qhp->lock);
init_waitqueue_head(&qhp->wait);
atomic_set(&qhp->refcnt, 1);
- insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid);
+
+ if (insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid)) {
+ cxio_destroy_qp(&rhp->rdev, &qhp->wq,
+ ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
+ kfree(qhp);
+ return ERR_PTR(-ENOMEM);
+ }
if (udata) {
@@ -893,10 +1036,10 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
qhp->ibqp.qp_num = qhp->wq.qpid;
init_timer(&(qhp->timer));
PDBG("%s sq_num_entries %d, rq_num_entries %d "
- "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n",
- __FUNCTION__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
+ "qpid 0x%0x qhp %p dma_addr 0x%llx size %d rq_addr 0x%x\n",
+ __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
- 1 << qhp->wq.size_log2);
+ 1 << qhp->wq.size_log2, qhp->wq.rq_addr);
return &qhp->ibqp;
}
@@ -908,7 +1051,7 @@ static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
enum iwch_qp_attr_mask mask = 0;
struct iwch_qp_attributes attrs;
- PDBG("%s ib_qp %p\n", __FUNCTION__, ibqp);
+ PDBG("%s ib_qp %p\n", __func__, ibqp);
/* iwarp does not support the RTR state */
if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR))
@@ -941,20 +1084,20 @@ static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
void iwch_qp_add_ref(struct ib_qp *qp)
{
- PDBG("%s ib_qp %p\n", __FUNCTION__, qp);
+ PDBG("%s ib_qp %p\n", __func__, qp);
atomic_inc(&(to_iwch_qp(qp)->refcnt));
}
void iwch_qp_rem_ref(struct ib_qp *qp)
{
- PDBG("%s ib_qp %p\n", __FUNCTION__, qp);
+ PDBG("%s ib_qp %p\n", __func__, qp);
if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt)))
wake_up(&(to_iwch_qp(qp)->wait));
}
static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
{
- PDBG("%s ib_dev %p qpn 0x%x\n", __FUNCTION__, dev, qpn);
+ PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn);
return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn);
}
@@ -962,7 +1105,7 @@ static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
static int iwch_query_pkey(struct ib_device *ibdev,
u8 port, u16 index, u16 * pkey)
{
- PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
+ PDBG("%s ibdev %p\n", __func__, ibdev);
*pkey = 0;
return 0;
}
@@ -973,7 +1116,7 @@ static int iwch_query_gid(struct ib_device *ibdev, u8 port,
struct iwch_dev *dev;
PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
- __FUNCTION__, ibdev, port, index, gid);
+ __func__, ibdev, port, index, gid);
dev = to_iwch_dev(ibdev);
BUG_ON(port == 0 || port > 2);
memset(&(gid->raw[0]), 0, sizeof(gid->raw));
@@ -981,30 +1124,56 @@ static int iwch_query_gid(struct ib_device *ibdev, u8 port,
return 0;
}
+static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev)
+{
+ struct ethtool_drvinfo info;
+ struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
+ char *cp, *next;
+ unsigned fw_maj, fw_min, fw_mic;
+
+ lldev->ethtool_ops->get_drvinfo(lldev, &info);
+
+ next = info.fw_version + 1;
+ cp = strsep(&next, ".");
+ sscanf(cp, "%i", &fw_maj);
+ cp = strsep(&next, ".");
+ sscanf(cp, "%i", &fw_min);
+ cp = strsep(&next, ".");
+ sscanf(cp, "%i", &fw_mic);
+
+ return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) |
+ (fw_mic & 0xffff);
+}
+
static int iwch_query_device(struct ib_device *ibdev,
struct ib_device_attr *props)
{
struct iwch_dev *dev;
- PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
+ PDBG("%s ibdev %p\n", __func__, ibdev);
dev = to_iwch_dev(ibdev);
memset(props, 0, sizeof *props);
memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
+ props->hw_ver = dev->rdev.t3cdev_p->type;
+ props->fw_ver = fw_vers_string_to_u64(dev);
props->device_cap_flags = dev->device_cap_flags;
+ props->page_size_cap = dev->attr.mem_pgsizes_bitmask;
props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
- props->max_mr_size = ~0ull;
+ props->max_mr_size = dev->attr.max_mr_size;
props->max_qp = dev->attr.max_qps;
props->max_qp_wr = dev->attr.max_wrs;
props->max_sge = dev->attr.max_sge_per_wr;
props->max_sge_rd = 1;
props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
+ props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
props->max_cq = dev->attr.max_cqs;
props->max_cqe = dev->attr.max_cqes_per_cq;
props->max_mr = dev->attr.max_mem_regs;
props->max_pd = dev->attr.max_pds;
props->local_ca_ack_delay = 0;
+ props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH;
return 0;
}
@@ -1012,14 +1181,42 @@ static int iwch_query_device(struct ib_device *ibdev,
static int iwch_query_port(struct ib_device *ibdev,
u8 port, struct ib_port_attr *props)
{
- PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
+ struct iwch_dev *dev;
+ struct net_device *netdev;
+ struct in_device *inetdev;
+
+ PDBG("%s ibdev %p\n", __func__, ibdev);
+
+ dev = to_iwch_dev(ibdev);
+ netdev = dev->rdev.port_info.lldevs[port-1];
+
+ memset(props, 0, sizeof(struct ib_port_attr));
props->max_mtu = IB_MTU_4096;
- props->lid = 0;
- props->lmc = 0;
- props->sm_lid = 0;
- props->sm_sl = 0;
- props->state = IB_PORT_ACTIVE;
- props->phys_state = 0;
+ if (netdev->mtu >= 4096)
+ props->active_mtu = IB_MTU_4096;
+ else if (netdev->mtu >= 2048)
+ props->active_mtu = IB_MTU_2048;
+ else if (netdev->mtu >= 1024)
+ props->active_mtu = IB_MTU_1024;
+ else if (netdev->mtu >= 512)
+ props->active_mtu = IB_MTU_512;
+ else
+ props->active_mtu = IB_MTU_256;
+
+ if (!netif_carrier_ok(netdev))
+ props->state = IB_PORT_DOWN;
+ else {
+ inetdev = in_dev_get(netdev);
+ if (inetdev) {
+ if (inetdev->ifa_list)
+ props->state = IB_PORT_ACTIVE;
+ else
+ props->state = IB_PORT_INIT;
+ in_dev_put(inetdev);
+ } else
+ props->state = IB_PORT_INIT;
+ }
+
props->port_cap_flags =
IB_PORT_CM_SUP |
IB_PORT_SNMP_TUNNEL_SUP |
@@ -1028,65 +1225,122 @@ static int iwch_query_port(struct ib_device *ibdev,
IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
props->gid_tbl_len = 1;
props->pkey_tbl_len = 1;
- props->qkey_viol_cntr = 0;
props->active_width = 2;
- props->active_speed = 2;
+ props->active_speed = IB_SPEED_DDR;
props->max_msg_sz = -1;
return 0;
}
-static ssize_t show_rev(struct class_device *cdev, char *buf)
+static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
- ibdev.class_dev);
- PDBG("%s class dev 0x%p\n", __FUNCTION__, cdev);
- return sprintf(buf, "%d\n", dev->rdev.t3cdev_p->type);
+ struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
+ ibdev.dev);
+ PDBG("%s dev 0x%p\n", __func__, dev);
+ return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
}
-static ssize_t show_fw_ver(struct class_device *cdev, char *buf)
+static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
- ibdev.class_dev);
+ struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
+ ibdev.dev);
struct ethtool_drvinfo info;
- struct net_device *lldev = dev->rdev.t3cdev_p->lldev;
+ struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
- PDBG("%s class dev 0x%p\n", __FUNCTION__, cdev);
+ PDBG("%s dev 0x%p\n", __func__, dev);
lldev->ethtool_ops->get_drvinfo(lldev, &info);
return sprintf(buf, "%s\n", info.fw_version);
}
-static ssize_t show_hca(struct class_device *cdev, char *buf)
+static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
- ibdev.class_dev);
+ struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
+ ibdev.dev);
struct ethtool_drvinfo info;
- struct net_device *lldev = dev->rdev.t3cdev_p->lldev;
+ struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
- PDBG("%s class dev 0x%p\n", __FUNCTION__, cdev);
+ PDBG("%s dev 0x%p\n", __func__, dev);
lldev->ethtool_ops->get_drvinfo(lldev, &info);
return sprintf(buf, "%s\n", info.driver);
}
-static ssize_t show_board(struct class_device *cdev, char *buf)
+static ssize_t show_board(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
+ ibdev.dev);
+ PDBG("%s dev 0x%p\n", __func__, dev);
+ return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor,
+ iwch_dev->rdev.rnic_info.pdev->device);
+}
+
+static int iwch_get_mib(struct ib_device *ibdev,
+ union rdma_protocol_stats *stats)
{
- struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
- ibdev.class_dev);
- PDBG("%s class dev 0x%p\n", __FUNCTION__, dev);
- return sprintf(buf, "%x.%x\n", dev->rdev.rnic_info.pdev->vendor,
- dev->rdev.rnic_info.pdev->device);
+ struct iwch_dev *dev;
+ struct tp_mib_stats m;
+ int ret;
+
+ PDBG("%s ibdev %p\n", __func__, ibdev);
+ dev = to_iwch_dev(ibdev);
+ ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m);
+ if (ret)
+ return -ENOSYS;
+
+ memset(stats, 0, sizeof *stats);
+ stats->iw.ipInReceives = ((u64) m.ipInReceive_hi << 32) +
+ m.ipInReceive_lo;
+ stats->iw.ipInHdrErrors = ((u64) m.ipInHdrErrors_hi << 32) +
+ m.ipInHdrErrors_lo;
+ stats->iw.ipInAddrErrors = ((u64) m.ipInAddrErrors_hi << 32) +
+ m.ipInAddrErrors_lo;
+ stats->iw.ipInUnknownProtos = ((u64) m.ipInUnknownProtos_hi << 32) +
+ m.ipInUnknownProtos_lo;
+ stats->iw.ipInDiscards = ((u64) m.ipInDiscards_hi << 32) +
+ m.ipInDiscards_lo;
+ stats->iw.ipInDelivers = ((u64) m.ipInDelivers_hi << 32) +
+ m.ipInDelivers_lo;
+ stats->iw.ipOutRequests = ((u64) m.ipOutRequests_hi << 32) +
+ m.ipOutRequests_lo;
+ stats->iw.ipOutDiscards = ((u64) m.ipOutDiscards_hi << 32) +
+ m.ipOutDiscards_lo;
+ stats->iw.ipOutNoRoutes = ((u64) m.ipOutNoRoutes_hi << 32) +
+ m.ipOutNoRoutes_lo;
+ stats->iw.ipReasmTimeout = (u64) m.ipReasmTimeout;
+ stats->iw.ipReasmReqds = (u64) m.ipReasmReqds;
+ stats->iw.ipReasmOKs = (u64) m.ipReasmOKs;
+ stats->iw.ipReasmFails = (u64) m.ipReasmFails;
+ stats->iw.tcpActiveOpens = (u64) m.tcpActiveOpens;
+ stats->iw.tcpPassiveOpens = (u64) m.tcpPassiveOpens;
+ stats->iw.tcpAttemptFails = (u64) m.tcpAttemptFails;
+ stats->iw.tcpEstabResets = (u64) m.tcpEstabResets;
+ stats->iw.tcpOutRsts = (u64) m.tcpOutRsts;
+ stats->iw.tcpCurrEstab = (u64) m.tcpCurrEstab;
+ stats->iw.tcpInSegs = ((u64) m.tcpInSegs_hi << 32) +
+ m.tcpInSegs_lo;
+ stats->iw.tcpOutSegs = ((u64) m.tcpOutSegs_hi << 32) +
+ m.tcpOutSegs_lo;
+ stats->iw.tcpRetransSegs = ((u64) m.tcpRetransSeg_hi << 32) +
+ m.tcpRetransSeg_lo;
+ stats->iw.tcpInErrs = ((u64) m.tcpInErrs_hi << 32) +
+ m.tcpInErrs_lo;
+ stats->iw.tcpRtoMin = (u64) m.tcpRtoMin;
+ stats->iw.tcpRtoMax = (u64) m.tcpRtoMax;
+ return 0;
}
-static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
-static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
-static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
-static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
+static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
+static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
+static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
+static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
-static struct class_device_attribute *iwch_class_attributes[] = {
- &class_device_attr_hw_rev,
- &class_device_attr_fw_ver,
- &class_device_attr_hca_type,
- &class_device_attr_board_id
+static struct device_attribute *iwch_class_attributes[] = {
+ &dev_attr_hw_rev,
+ &dev_attr_fw_ver,
+ &dev_attr_hca_type,
+ &dev_attr_board_id,
};
int iwch_register_device(struct iwch_dev *dev)
@@ -1094,14 +1348,17 @@ int iwch_register_device(struct iwch_dev *dev)
int ret;
int i;
- PDBG("%s iwch_dev %p\n", __FUNCTION__, dev);
+ PDBG("%s iwch_dev %p\n", __func__, dev);
strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX);
memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
dev->ibdev.owner = THIS_MODULE;
- dev->device_cap_flags =
- (IB_DEVICE_ZERO_STAG |
- IB_DEVICE_SEND_W_INV | IB_DEVICE_MEM_WINDOW);
+ dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
+ IB_DEVICE_MEM_WINDOW |
+ IB_DEVICE_MEM_MGT_EXTENSIONS;
+
+ /* cxgb3 supports STag 0. */
+ dev->ibdev.local_dma_lkey = 0;
dev->ibdev.uverbs_cmd_mask =
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
@@ -1128,7 +1385,6 @@ int iwch_register_device(struct iwch_dev *dev)
dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
dev->ibdev.query_device = iwch_query_device;
dev->ibdev.query_port = iwch_query_port;
- dev->ibdev.modify_port = iwch_modify_port;
dev->ibdev.query_pkey = iwch_query_pkey;
dev->ibdev.query_gid = iwch_query_gid;
dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
@@ -1153,15 +1409,17 @@ int iwch_register_device(struct iwch_dev *dev)
dev->ibdev.alloc_mw = iwch_alloc_mw;
dev->ibdev.bind_mw = iwch_bind_mw;
dev->ibdev.dealloc_mw = iwch_dealloc_mw;
-
+ dev->ibdev.alloc_fast_reg_mr = iwch_alloc_fast_reg_mr;
+ dev->ibdev.alloc_fast_reg_page_list = iwch_alloc_fastreg_pbl;
+ dev->ibdev.free_fast_reg_page_list = iwch_free_fastreg_pbl;
dev->ibdev.attach_mcast = iwch_multicast_attach;
dev->ibdev.detach_mcast = iwch_multicast_detach;
dev->ibdev.process_mad = iwch_process_mad;
-
dev->ibdev.req_notify_cq = iwch_arm_cq;
dev->ibdev.post_send = iwch_post_send;
dev->ibdev.post_recv = iwch_post_receive;
-
+ dev->ibdev.get_protocol_stats = iwch_get_mib;
+ dev->ibdev.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION;
dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
if (!dev->ibdev.iwcm)
@@ -1176,13 +1434,13 @@ int iwch_register_device(struct iwch_dev *dev)
dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref;
dev->ibdev.iwcm->get_qp = iwch_get_qp;
- ret = ib_register_device(&dev->ibdev);
+ ret = ib_register_device(&dev->ibdev, NULL);
if (ret)
goto bail1;
for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) {
- ret = class_device_create_file(&dev->ibdev.class_dev,
- iwch_class_attributes[i]);
+ ret = device_create_file(&dev->ibdev.dev,
+ iwch_class_attributes[i]);
if (ret) {
goto bail2;
}
@@ -1191,6 +1449,7 @@ int iwch_register_device(struct iwch_dev *dev)
bail2:
ib_unregister_device(&dev->ibdev);
bail1:
+ kfree(dev->ibdev.iwcm);
return ret;
}
@@ -1198,10 +1457,11 @@ void iwch_unregister_device(struct iwch_dev *dev)
{
int i;
- PDBG("%s iwch_dev %p\n", __FUNCTION__, dev);
+ PDBG("%s iwch_dev %p\n", __func__, dev);
for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i)
- class_device_remove_file(&dev->ibdev.class_dev,
- iwch_class_attributes[i]);
+ device_remove_file(&dev->ibdev.dev,
+ iwch_class_attributes[i]);
ib_unregister_device(&dev->ibdev);
+ kfree(dev->ibdev.iwcm);
return;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 22:30:13 +0000