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RDMA/irdma: Store PBL info address a pointer type 

The level1 PBL info address is stored as u64.  This requires casting
through a uinptr_t before used as a pointer type.

And this leads to sparse warning such as this when uinptr_t is missing:

drivers/infiniband/hw/irdma/hw.c: In function 'irdma_destroy_virt_aeq':
drivers/infiniband/hw/irdma/hw.c:579:23: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  579 |  dma_addr_t *pg_arr = (dma_addr_t *)aeq->palloc.level1.addr;

This can be fixed using an intermediate uintptr_t, but rather it is better
to fix the structure irdm_pble_info to store the address as u64* and the
VA it is assigned in irdma_chunk as a void*. This greatly reduces the
casting on this address.

Fixes: 44d9e52977 ("RDMA/irdma: Implement device initialization definitions")
Link: https://lore.kernel.org/r/20210609234924.938-1-shiraz.saleem@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Shiraz Saleem 2021-06-09 18:49:24 -05:00 committed by Jason Gunthorpe
parent bf0480a2df
commit 2db7b2eac7
5 changed files with 23 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/hw/irdma/hw.c
View File

@ -1314,7 +1314,7 @@ static enum irdma_status_code irdma_create_virt_aeq(struct irdma_pci_f *rf,
return status;
}
pg_arr = (dma_addr_t *)(uintptr_t)aeq->palloc.level1.addr;
pg_arr = (dma_addr_t *)aeq->palloc.level1.addr;
status = irdma_map_vm_page_list(&rf->hw, aeq->mem.va, pg_arr, pg_cnt);
if (status) {
irdma_free_pble(rf->pble_rsrc, &aeq->palloc);

13
drivers/infiniband/hw/irdma/pble.c
View File

@ -110,10 +110,10 @@ add_sd_direct(struct irdma_hmc_pble_rsrc *pble_rsrc,
offset = idx->rel_pd_idx << HMC_PAGED_BP_SHIFT;
chunk->size = info->pages << HMC_PAGED_BP_SHIFT;
chunk->vaddr = (uintptr_t)sd_entry->u.bp.addr.va + offset;
chunk->vaddr = sd_entry->u.bp.addr.va + offset;
chunk->fpm_addr = pble_rsrc->next_fpm_addr;
ibdev_dbg(to_ibdev(dev),
"PBLE: chunk_size[%lld] = 0x%llx vaddr=0x%llx fpm_addr = %llx\n",
"PBLE: chunk_size[%lld] = 0x%llx vaddr=0x%pK fpm_addr = %llx\n",
chunk->size, chunk->size, chunk->vaddr, chunk->fpm_addr);
return 0;
@ -163,7 +163,7 @@ add_bp_pages(struct irdma_hmc_pble_rsrc *pble_rsrc,
if (status)
goto error;
addr = (u8 *)(uintptr_t)chunk->vaddr;
addr = chunk->vaddr;
for (i = 0; i < info->pages; i++) {
mem.pa = (u64)chunk->dmainfo.dmaaddrs[i];
mem.size = 4096;
@ -375,7 +375,7 @@ get_lvl2_pble(struct irdma_hmc_pble_rsrc *pble_rsrc,
root->idx = fpm_to_idx(pble_rsrc, fpm_addr);
root->cnt = total;
addr = (u64 *)(uintptr_t)root->addr;
addr = root->addr;
for (i = 0; i < total; i++, leaf++) {
pblcnt = (lflast && ((i + 1) == total)) ?
lflast : PBLE_PER_PAGE;
@ -412,16 +412,15 @@ get_lvl1_pble(struct irdma_hmc_pble_rsrc *pble_rsrc,
struct irdma_pble_alloc *palloc)
{
enum irdma_status_code ret_code;
u64 fpm_addr, vaddr;
u64 fpm_addr;
struct irdma_pble_info *lvl1 = &palloc->level1;
ret_code = irdma_prm_get_pbles(&pble_rsrc->pinfo, &lvl1->chunkinfo,
palloc->total_cnt << 3, &vaddr,
palloc->total_cnt << 3, &lvl1->addr,
&fpm_addr);
if (ret_code)
return IRDMA_ERR_NO_MEMORY;
lvl1->addr = vaddr;
palloc->level = PBLE_LEVEL_1;
lvl1->idx = fpm_to_idx(pble_rsrc, fpm_addr);
lvl1->cnt = palloc->total_cnt;

6
drivers/infiniband/hw/irdma/pble.h
View File

@ -30,7 +30,7 @@ struct irdma_pble_chunkinfo {
};
struct irdma_pble_info {
u64 addr;
u64 *addr;
u32 idx;
u32 cnt;
struct irdma_pble_chunkinfo chunkinfo;
@ -73,7 +73,7 @@ struct irdma_chunk {
u32 sizeofbitmap;
u64 size;
u64 vaddr;
void *vaddr;
u64 fpm_addr;
u32 pg_cnt;
enum irdma_alloc_type type;
@ -122,7 +122,7 @@ enum irdma_status_code irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm,
enum irdma_status_code
irdma_prm_get_pbles(struct irdma_pble_prm *pprm,
struct irdma_pble_chunkinfo *chunkinfo, u32 mem_size,
u64 *vaddr, u64 *fpm_addr);
u64 **vaddr, u64 *fpm_addr);
void irdma_prm_return_pbles(struct irdma_pble_prm *pprm,
struct irdma_pble_chunkinfo *chunkinfo);
void irdma_pble_acquire_lock(struct irdma_hmc_pble_rsrc *pble_rsrc,

10
drivers/infiniband/hw/irdma/utils.c
View File

@ -2315,7 +2315,7 @@ enum irdma_status_code irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm,
enum irdma_status_code
irdma_prm_get_pbles(struct irdma_pble_prm *pprm,
struct irdma_pble_chunkinfo *chunkinfo, u32 mem_size,
u64 *vaddr, u64 *fpm_addr)
u64 **vaddr, u64 *fpm_addr)
{
u64 bits_needed;
u64 bit_idx = PBLE_INVALID_IDX;
@ -2323,7 +2323,7 @@ irdma_prm_get_pbles(struct irdma_pble_prm *pprm,
struct list_head *chunk_entry = pprm->clist.next;
u32 offset;
unsigned long flags;
*vaddr = 0;
*vaddr = NULL;
*fpm_addr = 0;
bits_needed = (mem_size + (1 << pprm->pble_shift) - 1) >> pprm->pble_shift;
@ -2429,8 +2429,8 @@ void irdma_pble_free_paged_mem(struct irdma_chunk *chunk)
done:
kfree(chunk->dmainfo.dmaaddrs);
chunk->dmainfo.dmaaddrs = NULL;
vfree((void *)(uintptr_t)chunk->vaddr);
chunk->vaddr = 0;
vfree(chunk->vaddr);
chunk->vaddr = NULL;
chunk->type = 0;
}
@ -2459,7 +2459,7 @@ enum irdma_status_code irdma_pble_get_paged_mem(struct irdma_chunk *chunk,
vfree(va);
goto err;
}
chunk->vaddr = (uintptr_t)va;
chunk->vaddr = va;
chunk->size = size;
chunk->pg_cnt = pg_cnt;
chunk->type = PBLE_SD_PAGED;

16
drivers/infiniband/hw/irdma/verbs.c
View File

@ -2214,7 +2214,7 @@ static inline u64 *irdma_next_pbl_addr(u64 *pbl, struct irdma_pble_info **pinfo,
*idx = 0;
(*pinfo)++;
return (u64 *)(uintptr_t)(*pinfo)->addr;
return (*pinfo)->addr;
}
/**
@ -2282,16 +2282,16 @@ static bool irdma_check_mr_contiguous(struct irdma_pble_alloc *palloc,
bool ret;
if (palloc->level == PBLE_LEVEL_1) {
arr = (u64 *)(uintptr_t)palloc->level1.addr;
arr = palloc->level1.addr;
ret = irdma_check_mem_contiguous(arr, palloc->total_cnt,
pg_size);
return ret;
}
start_addr = (u64 *)(uintptr_t)leaf->addr;
start_addr = leaf->addr;
for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) {
arr = (u64 *)(uintptr_t)leaf->addr;
arr = leaf->addr;
if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr)
return false;
ret = irdma_check_mem_contiguous(arr, leaf->cnt, pg_size);
@ -2328,7 +2328,7 @@ static int irdma_setup_pbles(struct irdma_pci_f *rf, struct irdma_mr *iwmr,
level = palloc->level;
pinfo = (level == PBLE_LEVEL_1) ? &palloc->level1 :
palloc->level2.leaf;
pbl = (u64 *)(uintptr_t)pinfo->addr;
pbl = pinfo->addr;
} else {
pbl = iwmr->pgaddrmem;
}
@ -2376,7 +2376,7 @@ static int irdma_handle_q_mem(struct irdma_device *iwdev,
}
if (use_pbles)
arr = (u64 *)(uintptr_t)palloc->level1.addr;
arr = palloc->level1.addr;
switch (iwmr->type) {
case IRDMA_MEMREG_TYPE_QP:
@ -2643,7 +2643,7 @@ static int irdma_set_page(struct ib_mr *ibmr, u64 addr)
if (unlikely(iwmr->npages == iwmr->page_cnt))
return -ENOMEM;
pbl = (u64 *)(uintptr_t)palloc->level1.addr;
pbl = palloc->level1.addr;
pbl[iwmr->npages++] = addr;
return 0;
@ -3223,7 +3223,7 @@ static int irdma_post_send(struct ib_qp *ibqp,
stag_info.addr_type = IRDMA_ADDR_TYPE_VA_BASED;
stag_info.va = (void *)(uintptr_t)iwmr->ibmr.iova;
stag_info.total_len = iwmr->ibmr.length;
stag_info.reg_addr_pa = *((u64 *)(uintptr_t)palloc->level1.addr);
stag_info.reg_addr_pa = *palloc->level1.addr;
stag_info.first_pm_pbl_index = palloc->level1.idx;
stag_info.local_fence = ib_wr->send_flags & IB_SEND_FENCE;
if (iwmr->npages > IRDMA_MIN_PAGES_PER_FMR)