diff options
Diffstat (limited to 'drivers/infiniband/hw/ehca/ehca_mrmw.c')
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_mrmw.c | 2016 |
1 files changed, 1174 insertions, 842 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c index 5ca65441e1d..3488e8c9fcb 100644 --- a/drivers/infiniband/hw/ehca/ehca_mrmw.c +++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c @@ -5,6 +5,7 @@ * * Authors: Dietmar Decker <ddecker@de.ibm.com> * Christoph Raisch <raisch@de.ibm.com> + * Hoang-Nam Nguyen <hnguyen@de.ibm.com> * * Copyright (c) 2005 IBM Corporation * @@ -39,25 +40,89 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#include <asm/current.h> +#include <linux/slab.h> +#include <rdma/ib_umem.h> #include "ehca_iverbs.h" #include "ehca_mrmw.h" #include "hcp_if.h" #include "hipz_hw.h" +#define NUM_CHUNKS(length, chunk_size) \ + (((length) + (chunk_size - 1)) / (chunk_size)) + +/* max number of rpages (per hcall register_rpages) */ +#define MAX_RPAGES 512 + +/* DMEM toleration management */ +#define EHCA_SECTSHIFT SECTION_SIZE_BITS +#define EHCA_SECTSIZE (1UL << EHCA_SECTSHIFT) +#define EHCA_HUGEPAGESHIFT 34 +#define EHCA_HUGEPAGE_SIZE (1UL << EHCA_HUGEPAGESHIFT) +#define EHCA_HUGEPAGE_PFN_MASK ((EHCA_HUGEPAGE_SIZE - 1) >> PAGE_SHIFT) +#define EHCA_INVAL_ADDR 0xFFFFFFFFFFFFFFFFULL +#define EHCA_DIR_INDEX_SHIFT 13 /* 8k Entries in 64k block */ +#define EHCA_TOP_INDEX_SHIFT (EHCA_DIR_INDEX_SHIFT * 2) +#define EHCA_MAP_ENTRIES (1 << EHCA_DIR_INDEX_SHIFT) +#define EHCA_TOP_MAP_SIZE (0x10000) /* currently fixed map size */ +#define EHCA_DIR_MAP_SIZE (0x10000) +#define EHCA_ENT_MAP_SIZE (0x10000) +#define EHCA_INDEX_MASK (EHCA_MAP_ENTRIES - 1) + +static unsigned long ehca_mr_len; + +/* + * Memory map data structures + */ +struct ehca_dir_bmap { + u64 ent[EHCA_MAP_ENTRIES]; +}; +struct ehca_top_bmap { + struct ehca_dir_bmap *dir[EHCA_MAP_ENTRIES]; +}; +struct ehca_bmap { + struct ehca_top_bmap *top[EHCA_MAP_ENTRIES]; +}; + +static struct ehca_bmap *ehca_bmap; + static struct kmem_cache *mr_cache; static struct kmem_cache *mw_cache; +enum ehca_mr_pgsize { + EHCA_MR_PGSIZE4K = 0x1000L, + EHCA_MR_PGSIZE64K = 0x10000L, + EHCA_MR_PGSIZE1M = 0x100000L, + EHCA_MR_PGSIZE16M = 0x1000000L +}; + +#define EHCA_MR_PGSHIFT4K 12 +#define EHCA_MR_PGSHIFT64K 16 +#define EHCA_MR_PGSHIFT1M 20 +#define EHCA_MR_PGSHIFT16M 24 + +static u64 ehca_map_vaddr(void *caddr); + +static u32 ehca_encode_hwpage_size(u32 pgsize) +{ + int log = ilog2(pgsize); + WARN_ON(log < 12 || log > 24 || log & 3); + return (log - 12) / 4; +} + +static u64 ehca_get_max_hwpage_size(struct ehca_shca *shca) +{ + return rounddown_pow_of_two(shca->hca_cap_mr_pgsize); +} + static struct ehca_mr *ehca_mr_new(void) { struct ehca_mr *me; - me = kmem_cache_alloc(mr_cache, SLAB_KERNEL); - if (me) { - memset(me, 0, sizeof(struct ehca_mr)); + me = kmem_cache_zalloc(mr_cache, GFP_KERNEL); + if (me) spin_lock_init(&me->mrlock); - } else + else ehca_gen_err("alloc failed"); return me; @@ -72,11 +137,10 @@ static struct ehca_mw *ehca_mw_new(void) { struct ehca_mw *me; - me = kmem_cache_alloc(mw_cache, SLAB_KERNEL); - if (me) { - memset(me, 0, sizeof(struct ehca_mw)); + me = kmem_cache_zalloc(mw_cache, GFP_KERNEL); + if (me) spin_lock_init(&me->mwlock); - } else + else ehca_gen_err("alloc failed"); return me; @@ -106,11 +170,13 @@ struct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags) goto get_dma_mr_exit0; } - ret = ehca_reg_maxmr(shca, e_maxmr, (u64*)KERNELBASE, + ret = ehca_reg_maxmr(shca, e_maxmr, + (void *)ehca_map_vaddr((void *)(KERNELBASE + PHYSICAL_START)), mr_access_flags, e_pd, &e_maxmr->ib.ib_mr.lkey, &e_maxmr->ib.ib_mr.rkey); if (ret) { + ehca_mr_delete(e_maxmr); ib_mr = ERR_PTR(ret); goto get_dma_mr_exit0; } @@ -123,7 +189,7 @@ struct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags) get_dma_mr_exit0: if (IS_ERR(ib_mr)) - ehca_err(&shca->ib_device, "rc=%lx pd=%p mr_access_flags=%x ", + ehca_err(&shca->ib_device, "h_ret=%li pd=%p mr_access_flags=%x", PTR_ERR(ib_mr), pd, mr_access_flags); return ib_mr; } /* end ehca_get_dma_mr() */ @@ -144,9 +210,6 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); u64 size; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ if ((num_phys_buf <= 0) || !phys_buf_array) { ehca_err(pd->device, "bad input values: num_phys_buf=%x " @@ -177,7 +240,7 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, } if ((size == 0) || (((u64)iova_start + size) < (u64)iova_start)) { - ehca_err(pd->device, "bad input values: size=%lx iova_start=%p", + ehca_err(pd->device, "bad input values: size=%llx iova_start=%p", size, iova_start); ib_mr = ERR_PTR(-EINVAL); goto reg_phys_mr_exit0; @@ -190,12 +253,6 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, goto reg_phys_mr_exit0; } - /* determine number of MR pages */ - num_pages_mr = ((((u64)iova_start % PAGE_SIZE) + size + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)iova_start % EHCA_PAGESIZE) + size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - /* register MR on HCA */ if (ehca_mr_is_maxmr(size, iova_start)) { e_mr->flags |= EHCA_MR_FLAG_MAXMR; @@ -207,17 +264,30 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, goto reg_phys_mr_exit1; } } else { - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = num_phys_buf; - pginfo.phys_buf_array = phys_buf_array; - pginfo.next_4k = (((u64)iova_start & ~PAGE_MASK) / - EHCA_PAGESIZE); + struct ehca_mr_pginfo pginfo; + u32 num_kpages; + u32 num_hwpages; + u64 hw_pgsize; + + num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size, + PAGE_SIZE); + /* for kernel space we try most possible pgsize */ + hw_pgsize = ehca_get_max_hwpage_size(shca); + num_hwpages = NUM_CHUNKS(((u64)iova_start % hw_pgsize) + size, + hw_pgsize); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.hwpage_size = hw_pgsize; + pginfo.num_hwpages = num_hwpages; + pginfo.u.phy.num_phys_buf = num_phys_buf; + pginfo.u.phy.phys_buf_array = phys_buf_array; + pginfo.next_hwpage = + ((u64)iova_start & ~PAGE_MASK) / hw_pgsize; ret = ehca_reg_mr(shca, e_mr, iova_start, size, mr_access_flags, e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, - &e_mr->ib.ib_mr.rkey); + &e_mr->ib.ib_mr.rkey, EHCA_REG_MR); if (ret) { ib_mr = ERR_PTR(ret); goto reg_phys_mr_exit1; @@ -231,7 +301,7 @@ reg_phys_mr_exit1: ehca_mr_delete(e_mr); reg_phys_mr_exit0: if (IS_ERR(ib_mr)) - ehca_err(pd->device, "rc=%lx pd=%p phys_buf_array=%p " + ehca_err(pd->device, "h_ret=%li pd=%p phys_buf_array=%p " "num_phys_buf=%x mr_access_flags=%x iova_start=%p", PTR_ERR(ib_mr), pd, phys_buf_array, num_phys_buf, mr_access_flags, iova_start); @@ -240,9 +310,8 @@ reg_phys_mr_exit0: /*----------------------------------------------------------------------*/ -struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, - struct ib_umem *region, - int mr_access_flags, +struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt, int mr_access_flags, struct ib_udata *udata) { struct ib_mr *ib_mr; @@ -250,20 +319,17 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, ib_device); struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; - int ret; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ + struct ehca_mr_pginfo pginfo; + int ret, page_shift; + u32 num_kpages; + u32 num_hwpages; + u64 hwpage_size; if (!pd) { ehca_gen_err("bad pd=%p", pd); return ERR_PTR(-EFAULT); } - if (!region) { - ehca_err(pd->device, "bad input values: region=%p", region); - ib_mr = ERR_PTR(-EINVAL); - goto reg_user_mr_exit0; - } + if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && @@ -277,17 +343,10 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, ib_mr = ERR_PTR(-EINVAL); goto reg_user_mr_exit0; } - if (region->page_size != PAGE_SIZE) { - ehca_err(pd->device, "page size not supported, " - "region->page_size=%x", region->page_size); - ib_mr = ERR_PTR(-EINVAL); - goto reg_user_mr_exit0; - } - if ((region->length == 0) || - ((region->virt_base + region->length) < region->virt_base)) { - ehca_err(pd->device, "bad input values: length=%lx " - "virt_base=%lx", region->length, region->virt_base); + if (length == 0 || virt + length < virt) { + ehca_err(pd->device, "bad input values: length=%llx " + "virt_base=%llx", length, virt); ib_mr = ERR_PTR(-EINVAL); goto reg_user_mr_exit0; } @@ -299,40 +358,80 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, goto reg_user_mr_exit0; } - /* determine number of MR pages */ - num_pages_mr = (((region->virt_base % PAGE_SIZE) + region->length + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = (((region->virt_base % EHCA_PAGESIZE) + region->length + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); + e_mr->umem = ib_umem_get(pd->uobject->context, start, length, + mr_access_flags, 0); + if (IS_ERR(e_mr->umem)) { + ib_mr = (void *)e_mr->umem; + goto reg_user_mr_exit1; + } + + if (e_mr->umem->page_size != PAGE_SIZE) { + ehca_err(pd->device, "page size not supported, " + "e_mr->umem->page_size=%x", e_mr->umem->page_size); + ib_mr = ERR_PTR(-EINVAL); + goto reg_user_mr_exit2; + } + /* determine number of MR pages */ + num_kpages = NUM_CHUNKS((virt % PAGE_SIZE) + length, PAGE_SIZE); + /* select proper hw_pgsize */ + page_shift = PAGE_SHIFT; + if (e_mr->umem->hugetlb) { + /* determine page_shift, clamp between 4K and 16M */ + page_shift = (fls64(length - 1) + 3) & ~3; + page_shift = min(max(page_shift, EHCA_MR_PGSHIFT4K), + EHCA_MR_PGSHIFT16M); + } + hwpage_size = 1UL << page_shift; + + /* now that we have the desired page size, shift until it's + * supported, too. 4K is always supported, so this terminates. + */ + while (!(hwpage_size & shca->hca_cap_mr_pgsize)) + hwpage_size >>= 4; + +reg_user_mr_fallback: + num_hwpages = NUM_CHUNKS((virt % hwpage_size) + length, hwpage_size); /* register MR on HCA */ - pginfo.type = EHCA_MR_PGI_USER; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.region = region; - pginfo.next_4k = region->offset / EHCA_PAGESIZE; - pginfo.next_chunk = list_prepare_entry(pginfo.next_chunk, - (®ion->chunk_list), - list); - - ret = ehca_reg_mr(shca, e_mr, (u64*)region->virt_base, - region->length, mr_access_flags, e_pd, &pginfo, - &e_mr->ib.ib_mr.lkey, &e_mr->ib.ib_mr.rkey); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_USER; + pginfo.hwpage_size = hwpage_size; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.usr.region = e_mr->umem; + pginfo.next_hwpage = e_mr->umem->offset / hwpage_size; + pginfo.u.usr.next_sg = pginfo.u.usr.region->sg_head.sgl; + ret = ehca_reg_mr(shca, e_mr, (u64 *)virt, length, mr_access_flags, + e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, + &e_mr->ib.ib_mr.rkey, EHCA_REG_MR); + if (ret == -EINVAL && pginfo.hwpage_size > PAGE_SIZE) { + ehca_warn(pd->device, "failed to register mr " + "with hwpage_size=%llx", hwpage_size); + ehca_info(pd->device, "try to register mr with " + "kpage_size=%lx", PAGE_SIZE); + /* + * this means kpages are not contiguous for a hw page + * try kernel page size as fallback solution + */ + hwpage_size = PAGE_SIZE; + goto reg_user_mr_fallback; + } if (ret) { ib_mr = ERR_PTR(ret); - goto reg_user_mr_exit1; + goto reg_user_mr_exit2; } /* successful registration of all pages */ return &e_mr->ib.ib_mr; +reg_user_mr_exit2: + ib_umem_release(e_mr->umem); reg_user_mr_exit1: ehca_mr_delete(e_mr); reg_user_mr_exit0: if (IS_ERR(ib_mr)) - ehca_err(pd->device, "rc=%lx pd=%p region=%p mr_access_flags=%x" - " udata=%p", - PTR_ERR(ib_mr), pd, region, mr_access_flags, udata); + ehca_err(pd->device, "rc=%li pd=%p mr_access_flags=%x udata=%p", + PTR_ERR(ib_mr), pd, mr_access_flags, udata); return ib_mr; } /* end ehca_reg_user_mr() */ @@ -351,25 +450,15 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, struct ehca_shca *shca = container_of(mr->device, struct ehca_shca, ib_device); struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); - struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); u64 new_size; u64 *new_start; u32 new_acl; struct ehca_pd *new_pd; u32 tmp_lkey, tmp_rkey; unsigned long sl_flags; - u32 num_pages_mr = 0; - u32 num_pages_4k = 0; /* 4k portion "pages" */ - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; - u32 cur_pid = current->tgid; - - if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && - (my_pd->ownpid != cur_pid)) { - ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", - cur_pid, my_pd->ownpid); - ret = -EINVAL; - goto rereg_phys_mr_exit0; - } + u32 num_kpages = 0; + u32 num_hwpages = 0; + struct ehca_mr_pginfo pginfo; if (!(mr_rereg_mask & IB_MR_REREG_TRANS)) { /* TODO not supported, because PHYP rereg hCall needs pages */ @@ -412,7 +501,7 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, goto rereg_phys_mr_exit0; } if (!phys_buf_array || num_phys_buf <= 0) { - ehca_err(mr->device, "bad input values: mr_rereg_mask=%x" + ehca_err(mr->device, "bad input values mr_rereg_mask=%x" " phys_buf_array=%p num_phys_buf=%x", mr_rereg_mask, phys_buf_array, num_phys_buf); ret = -EINVAL; @@ -436,12 +525,14 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, /* set requested values dependent on rereg request */ spin_lock_irqsave(&e_mr->mrlock, sl_flags); - new_start = e_mr->start; /* new == old address */ - new_size = e_mr->size; /* new == old length */ - new_acl = e_mr->acl; /* new == old access control */ - new_pd = container_of(mr->pd,struct ehca_pd,ib_pd); /*new == old PD*/ + new_start = e_mr->start; + new_size = e_mr->size; + new_acl = e_mr->acl; + new_pd = container_of(mr->pd, struct ehca_pd, ib_pd); if (mr_rereg_mask & IB_MR_REREG_TRANS) { + u64 hw_pgsize = ehca_get_max_hwpage_size(shca); + new_start = iova_start; /* change address */ /* check physical buffer list and calculate size */ ret = ehca_mr_chk_buf_and_calc_size(phys_buf_array, @@ -451,22 +542,24 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, goto rereg_phys_mr_exit1; if ((new_size == 0) || (((u64)iova_start + new_size) < (u64)iova_start)) { - ehca_err(mr->device, "bad input values: new_size=%lx " + ehca_err(mr->device, "bad input values: new_size=%llx " "iova_start=%p", new_size, iova_start); ret = -EINVAL; goto rereg_phys_mr_exit1; } - num_pages_mr = ((((u64)new_start % PAGE_SIZE) + new_size + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)new_start % EHCA_PAGESIZE) + new_size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = num_phys_buf; - pginfo.phys_buf_array = phys_buf_array; - pginfo.next_4k = (((u64)iova_start & ~PAGE_MASK) / - EHCA_PAGESIZE); + num_kpages = NUM_CHUNKS(((u64)new_start % PAGE_SIZE) + + new_size, PAGE_SIZE); + num_hwpages = NUM_CHUNKS(((u64)new_start % hw_pgsize) + + new_size, hw_pgsize); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.hwpage_size = hw_pgsize; + pginfo.num_hwpages = num_hwpages; + pginfo.u.phy.num_phys_buf = num_phys_buf; + pginfo.u.phy.phys_buf_array = phys_buf_array; + pginfo.next_hwpage = + ((u64)iova_start & ~PAGE_MASK) / hw_pgsize; } if (mr_rereg_mask & IB_MR_REREG_ACCESS) new_acl = mr_access_flags; @@ -488,7 +581,7 @@ rereg_phys_mr_exit1: spin_unlock_irqrestore(&e_mr->mrlock, sl_flags); rereg_phys_mr_exit0: if (ret) - ehca_err(mr->device, "ret=%x mr=%p mr_rereg_mask=%x pd=%p " + ehca_err(mr->device, "ret=%i mr=%p mr_rereg_mask=%x pd=%p " "phys_buf_array=%p num_phys_buf=%x mr_access_flags=%x " "iova_start=%p", ret, mr, mr_rereg_mask, pd, phys_buf_array, @@ -505,18 +598,8 @@ int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) struct ehca_shca *shca = container_of(mr->device, struct ehca_shca, ib_device); struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); - struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); - u32 cur_pid = current->tgid; unsigned long sl_flags; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; - - if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && - (my_pd->ownpid != cur_pid)) { - ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", - cur_pid, my_pd->ownpid); - ret = -EINVAL; - goto query_mr_exit0; - } + struct ehca_mr_hipzout_parms hipzout; if ((e_mr->flags & EHCA_MR_FLAG_FMR)) { ehca_err(mr->device, "not supported for FMR, mr=%p e_mr=%p " @@ -530,25 +613,25 @@ int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) h_ret = hipz_h_query_mr(shca->ipz_hca_handle, e_mr, &hipzout); if (h_ret != H_SUCCESS) { - ehca_err(mr->device, "hipz_mr_query failed, h_ret=%lx mr=%p " - "hca_hndl=%lx mr_hndl=%lx lkey=%x", + ehca_err(mr->device, "hipz_mr_query failed, h_ret=%lli mr=%p " + "hca_hndl=%llx mr_hndl=%llx lkey=%x", h_ret, mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, mr->lkey); - ret = ehca_mrmw_map_hrc_query_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto query_mr_exit1; } - mr_attr->pd = mr->pd; + mr_attr->pd = mr->pd; mr_attr->device_virt_addr = hipzout.vaddr; - mr_attr->size = hipzout.len; - mr_attr->lkey = hipzout.lkey; - mr_attr->rkey = hipzout.rkey; + mr_attr->size = hipzout.len; + mr_attr->lkey = hipzout.lkey; + mr_attr->rkey = hipzout.rkey; ehca_mrmw_reverse_map_acl(&hipzout.acl, &mr_attr->mr_access_flags); query_mr_exit1: spin_unlock_irqrestore(&e_mr->mrlock, sl_flags); query_mr_exit0: if (ret) - ehca_err(mr->device, "ret=%x mr=%p mr_attr=%p", + ehca_err(mr->device, "ret=%i mr=%p mr_attr=%p", ret, mr, mr_attr); return ret; } /* end ehca_query_mr() */ @@ -562,16 +645,6 @@ int ehca_dereg_mr(struct ib_mr *mr) struct ehca_shca *shca = container_of(mr->device, struct ehca_shca, ib_device); struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); - struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); - u32 cur_pid = current->tgid; - - if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && - (my_pd->ownpid != cur_pid)) { - ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", - cur_pid, my_pd->ownpid); - ret = -EINVAL; - goto dereg_mr_exit0; - } if ((e_mr->flags & EHCA_MR_FLAG_FMR)) { ehca_err(mr->device, "not supported for FMR, mr=%p e_mr=%p " @@ -590,26 +663,29 @@ int ehca_dereg_mr(struct ib_mr *mr) /* TODO: BUSY: MR still has bound window(s) */ h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); if (h_ret != H_SUCCESS) { - ehca_err(mr->device, "hipz_free_mr failed, h_ret=%lx shca=%p " - "e_mr=%p hca_hndl=%lx mr_hndl=%lx mr->lkey=%x", + ehca_err(mr->device, "hipz_free_mr failed, h_ret=%lli shca=%p " + "e_mr=%p hca_hndl=%llx mr_hndl=%llx mr->lkey=%x", h_ret, shca, e_mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, mr->lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto dereg_mr_exit0; } + if (e_mr->umem) + ib_umem_release(e_mr->umem); + /* successful deregistration */ ehca_mr_delete(e_mr); dereg_mr_exit0: if (ret) - ehca_err(mr->device, "ret=%x mr=%p", ret, mr); + ehca_err(mr->device, "ret=%i mr=%p", ret, mr); return ret; } /* end ehca_dereg_mr() */ /*----------------------------------------------------------------------*/ -struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) +struct ib_mw *ehca_alloc_mw(struct ib_pd *pd, enum ib_mw_type type) { struct ib_mw *ib_mw; u64 h_ret; @@ -617,7 +693,10 @@ struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, ib_device); - struct ehca_mw_hipzout_parms hipzout = {{0},0}; + struct ehca_mw_hipzout_parms hipzout; + + if (type != IB_MW_TYPE_1) + return ERR_PTR(-EINVAL); e_mw = ehca_mw_new(); if (!e_mw) { @@ -628,10 +707,10 @@ struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) h_ret = hipz_h_alloc_resource_mw(shca->ipz_hca_handle, e_mw, e_pd->fw_pd, &hipzout); if (h_ret != H_SUCCESS) { - ehca_err(pd->device, "hipz_mw_allocate failed, h_ret=%lx " - "shca=%p hca_hndl=%lx mw=%p", + ehca_err(pd->device, "hipz_mw_allocate failed, h_ret=%lli " + "shca=%p hca_hndl=%llx mw=%p", h_ret, shca, shca->ipz_hca_handle.handle, e_mw); - ib_mw = ERR_PTR(ehca_mrmw_map_hrc_alloc(h_ret)); + ib_mw = ERR_PTR(ehca2ib_return_code(h_ret)); goto alloc_mw_exit1; } /* successful MW allocation */ @@ -643,7 +722,7 @@ alloc_mw_exit1: ehca_mw_delete(e_mw); alloc_mw_exit0: if (IS_ERR(ib_mw)) - ehca_err(pd->device, "rc=%lx pd=%p", PTR_ERR(ib_mw), pd); + ehca_err(pd->device, "h_ret=%li pd=%p", PTR_ERR(ib_mw), pd); return ib_mw; } /* end ehca_alloc_mw() */ @@ -670,11 +749,11 @@ int ehca_dealloc_mw(struct ib_mw *mw) h_ret = hipz_h_free_resource_mw(shca->ipz_hca_handle, e_mw); if (h_ret != H_SUCCESS) { - ehca_err(mw->device, "hipz_free_mw failed, h_ret=%lx shca=%p " - "mw=%p rkey=%x hca_hndl=%lx mw_hndl=%lx", + ehca_err(mw->device, "hipz_free_mw failed, h_ret=%lli shca=%p " + "mw=%p rkey=%x hca_hndl=%llx mw_hndl=%llx", h_ret, shca, mw, mw->rkey, shca->ipz_hca_handle.handle, e_mw->ipz_mw_handle.handle); - return ehca_mrmw_map_hrc_free_mw(h_ret); + return ehca2ib_return_code(h_ret); } /* successful deallocation */ ehca_mw_delete(e_mw); @@ -694,7 +773,8 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, struct ehca_mr *e_fmr; int ret; u32 tmp_lkey, tmp_rkey; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; + u64 hw_pgsize; /* check other parameters */ if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && @@ -724,8 +804,9 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, ib_fmr = ERR_PTR(-EINVAL); goto alloc_fmr_exit0; } - if (((1 << fmr_attr->page_shift) != EHCA_PAGESIZE) && - ((1 << fmr_attr->page_shift) != PAGE_SIZE)) { + + hw_pgsize = 1 << fmr_attr->page_shift; + if (!(hw_pgsize & shca->hca_cap_mr_pgsize)) { ehca_err(pd->device, "unsupported fmr_attr->page_shift=%x", fmr_attr->page_shift); ib_fmr = ERR_PTR(-EINVAL); @@ -740,16 +821,23 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, e_fmr->flags |= EHCA_MR_FLAG_FMR; /* register MR on HCA */ + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.hwpage_size = hw_pgsize; + /* + * pginfo.num_hwpages==0, ie register_rpages() will not be called + * but deferred to map_phys_fmr() + */ ret = ehca_reg_mr(shca, e_fmr, NULL, fmr_attr->max_pages * (1 << fmr_attr->page_shift), mr_access_flags, e_pd, &pginfo, - &tmp_lkey, &tmp_rkey); + &tmp_lkey, &tmp_rkey, EHCA_REG_MR); if (ret) { ib_fmr = ERR_PTR(ret); goto alloc_fmr_exit1; } /* successful */ + e_fmr->hwpage_size = hw_pgsize; e_fmr->fmr_page_size = 1 << fmr_attr->page_shift; e_fmr->fmr_max_pages = fmr_attr->max_pages; e_fmr->fmr_max_maps = fmr_attr->max_maps; @@ -759,10 +847,6 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, alloc_fmr_exit1: ehca_mr_delete(e_fmr); alloc_fmr_exit0: - if (IS_ERR(ib_fmr)) - ehca_err(pd->device, "rc=%lx pd=%p mr_access_flags=%x " - "fmr_attr=%p", PTR_ERR(ib_fmr), pd, - mr_access_flags, fmr_attr); return ib_fmr; } /* end ehca_alloc_fmr() */ @@ -778,7 +862,7 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, container_of(fmr->device, struct ehca_shca, ib_device); struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); struct ehca_pd *e_pd = container_of(fmr->pd, struct ehca_pd, ib_pd); - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; u32 tmp_lkey, tmp_rkey; if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { @@ -792,7 +876,7 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, goto map_phys_fmr_exit0; if (iova % e_fmr->fmr_page_size) { /* only whole-numbered pages */ - ehca_err(fmr->device, "bad iova, iova=%lx fmr_page_size=%x", + ehca_err(fmr->device, "bad iova, iova=%llx fmr_page_size=%x", iova, e_fmr->fmr_page_size); ret = -EINVAL; goto map_phys_fmr_exit0; @@ -804,14 +888,18 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, fmr, e_fmr->fmr_map_cnt, e_fmr->fmr_max_maps); } - pginfo.type = EHCA_MR_PGI_FMR; - pginfo.num_pages = list_len; - pginfo.num_4k = list_len * (e_fmr->fmr_page_size / EHCA_PAGESIZE); - pginfo.page_list = page_list; - pginfo.next_4k = ((iova & (e_fmr->fmr_page_size-1)) / - EHCA_PAGESIZE); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_FMR; + pginfo.num_kpages = list_len; + pginfo.hwpage_size = e_fmr->hwpage_size; + pginfo.num_hwpages = + list_len * e_fmr->fmr_page_size / pginfo.hwpage_size; + pginfo.u.fmr.page_list = page_list; + pginfo.next_hwpage = + (iova & (e_fmr->fmr_page_size-1)) / pginfo.hwpage_size; + pginfo.u.fmr.fmr_pgsize = e_fmr->fmr_page_size; - ret = ehca_rereg_mr(shca, e_fmr, (u64*)iova, + ret = ehca_rereg_mr(shca, e_fmr, (u64 *)iova, list_len * e_fmr->fmr_page_size, e_fmr->acl, e_pd, &pginfo, &tmp_lkey, &tmp_rkey); if (ret) @@ -825,9 +913,8 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, map_phys_fmr_exit0: if (ret) - ehca_err(fmr->device, "ret=%x fmr=%p page_list=%p list_len=%x " - "iova=%lx", - ret, fmr, page_list, list_len, iova); + ehca_err(fmr->device, "ret=%i fmr=%p page_list=%p list_len=%x " + "iova=%llx", ret, fmr, page_list, list_len, iova); return ret; } /* end ehca_map_phys_fmr() */ @@ -846,11 +933,6 @@ int ehca_unmap_fmr(struct list_head *fmr_list) /* check all FMR belong to same SHCA, and check internal flag */ list_for_each_entry(ib_fmr, fmr_list, list) { prev_shca = shca; - if (!ib_fmr) { - ehca_gen_err("bad fmr=%p in list", ib_fmr); - ret = -EINVAL; - goto unmap_fmr_exit0; - } shca = container_of(ib_fmr->device, struct ehca_shca, ib_device); e_fmr = container_of(ib_fmr, struct ehca_mr, ib.ib_fmr); @@ -889,7 +971,7 @@ int ehca_unmap_fmr(struct list_head *fmr_list) unmap_fmr_exit0: if (ret) - ehca_gen_err("ret=%x fmr_list=%p num_fmr=%x unmap_fmr_cnt=%x", + ehca_gen_err("ret=%i fmr_list=%p num_fmr=%x unmap_fmr_cnt=%x", ret, fmr_list, num_fmr, unmap_fmr_cnt); return ret; } /* end ehca_unmap_fmr() */ @@ -913,11 +995,11 @@ int ehca_dealloc_fmr(struct ib_fmr *fmr) h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); if (h_ret != H_SUCCESS) { - ehca_err(fmr->device, "hipz_free_mr failed, h_ret=%lx e_fmr=%p " - "hca_hndl=%lx fmr_hndl=%lx fmr->lkey=%x", + ehca_err(fmr->device, "hipz_free_mr failed, h_ret=%lli e_fmr=%p " + "hca_hndl=%llx fmr_hndl=%llx fmr->lkey=%x", h_ret, e_fmr, shca->ipz_hca_handle.handle, e_fmr->ipz_mr_handle.handle, fmr->lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto free_fmr_exit0; } /* successful deregistration */ @@ -926,12 +1008,16 @@ int ehca_dealloc_fmr(struct ib_fmr *fmr) free_fmr_exit0: if (ret) - ehca_err(&shca->ib_device, "ret=%x fmr=%p", ret, fmr); + ehca_err(&shca->ib_device, "ret=%i fmr=%p", ret, fmr); return ret; } /* end ehca_dealloc_fmr() */ /*----------------------------------------------------------------------*/ +static int ehca_reg_bmap_mr_rpages(struct ehca_shca *shca, + struct ehca_mr *e_mr, + struct ehca_mr_pginfo *pginfo); + int ehca_reg_mr(struct ehca_shca *shca, struct ehca_mr *e_mr, u64 *iova_start, @@ -940,40 +1026,48 @@ int ehca_reg_mr(struct ehca_shca *shca, struct ehca_pd *e_pd, struct ehca_mr_pginfo *pginfo, u32 *lkey, /*OUT*/ - u32 *rkey) /*OUT*/ + u32 *rkey, /*OUT*/ + enum ehca_reg_type reg_type) { int ret; u64 h_ret; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); - ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); + ehca_mrmw_set_pgsize_hipz_acl(pginfo->hwpage_size, &hipz_acl); if (ehca_use_hp_mr == 1) - hipz_acl |= 0x00000001; + hipz_acl |= 0x00000001; h_ret = hipz_h_alloc_resource_mr(shca->ipz_hca_handle, e_mr, (u64)iova_start, size, hipz_acl, e_pd->fw_pd, &hipzout); if (h_ret != H_SUCCESS) { - ehca_err(&shca->ib_device, "hipz_alloc_mr failed, h_ret=%lx " - "hca_hndl=%lx", h_ret, shca->ipz_hca_handle.handle); - ret = ehca_mrmw_map_hrc_alloc(h_ret); + ehca_err(&shca->ib_device, "hipz_alloc_mr failed, h_ret=%lli " + "hca_hndl=%llx", h_ret, shca->ipz_hca_handle.handle); + ret = ehca2ib_return_code(h_ret); goto ehca_reg_mr_exit0; } e_mr->ipz_mr_handle = hipzout.handle; - ret = ehca_reg_mr_rpages(shca, e_mr, pginfo); + if (reg_type == EHCA_REG_BUSMAP_MR) + ret = ehca_reg_bmap_mr_rpages(shca, e_mr, pginfo); + else if (reg_type == EHCA_REG_MR) + ret = ehca_reg_mr_rpages(shca, e_mr, pginfo); + else + ret = -EINVAL; + if (ret) goto ehca_reg_mr_exit1; /* successful registration */ - e_mr->num_pages = pginfo->num_pages; - e_mr->num_4k = pginfo->num_4k; - e_mr->start = iova_start; - e_mr->size = size; - e_mr->acl = acl; + e_mr->num_kpages = pginfo->num_kpages; + e_mr->num_hwpages = pginfo->num_hwpages; + e_mr->hwpage_size = pginfo->hwpage_size; + e_mr->start = iova_start; + e_mr->size = size; + e_mr->acl = acl; *lkey = hipzout.lkey; *rkey = hipzout.rkey; return 0; @@ -981,22 +1075,22 @@ int ehca_reg_mr(struct ehca_shca *shca, ehca_reg_mr_exit1: h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); if (h_ret != H_SUCCESS) { - ehca_err(&shca->ib_device, "h_ret=%lx shca=%p e_mr=%p " - "iova_start=%p size=%lx acl=%x e_pd=%p lkey=%x " - "pginfo=%p num_pages=%lx num_4k=%lx ret=%x", + ehca_err(&shca->ib_device, "h_ret=%lli shca=%p e_mr=%p " + "iova_start=%p size=%llx acl=%x e_pd=%p lkey=%x " + "pginfo=%p num_kpages=%llx num_hwpages=%llx ret=%i", h_ret, shca, e_mr, iova_start, size, acl, e_pd, - hipzout.lkey, pginfo, pginfo->num_pages, - pginfo->num_4k, ret); + hipzout.lkey, pginfo, pginfo->num_kpages, + pginfo->num_hwpages, ret); ehca_err(&shca->ib_device, "internal error in ehca_reg_mr, " "not recoverable"); } ehca_reg_mr_exit0: if (ret) - ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p " - "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " - "num_pages=%lx num_4k=%lx", + ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p " + "iova_start=%p size=%llx acl=%x e_pd=%p pginfo=%p " + "num_kpages=%llx num_hwpages=%llx", ret, shca, e_mr, iova_start, size, acl, e_pd, pginfo, - pginfo->num_pages, pginfo->num_4k); + pginfo->num_kpages, pginfo->num_hwpages); return ret; } /* end ehca_reg_mr() */ @@ -1013,78 +1107,75 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, u32 i; u64 *kpage; - kpage = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!pginfo->num_hwpages) /* in case of fmr */ + return 0; + + kpage = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!kpage) { ehca_err(&shca->ib_device, "kpage alloc failed"); ret = -ENOMEM; goto ehca_reg_mr_rpages_exit0; } - /* max 512 pages per shot */ - for (i = 0; i < ((pginfo->num_4k + 512 - 1) / 512); i++) { + /* max MAX_RPAGES ehca mr pages per register call */ + for (i = 0; i < NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES); i++) { - if (i == ((pginfo->num_4k + 512 - 1) / 512) - 1) { - rnum = pginfo->num_4k % 512; /* last shot */ + if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { + rnum = pginfo->num_hwpages % MAX_RPAGES; /* last shot */ if (rnum == 0) - rnum = 512; /* last shot is full */ + rnum = MAX_RPAGES; /* last shot is full */ } else - rnum = 512; + rnum = MAX_RPAGES; + + ret = ehca_set_pagebuf(pginfo, rnum, kpage); + if (ret) { + ehca_err(&shca->ib_device, "ehca_set_pagebuf " + "bad rc, ret=%i rnum=%x kpage=%p", + ret, rnum, kpage); + goto ehca_reg_mr_rpages_exit1; + } if (rnum > 1) { - ret = ehca_set_pagebuf(e_mr, pginfo, rnum, kpage); - if (ret) { - ehca_err(&shca->ib_device, "ehca_set_pagebuf " - "bad rc, ret=%x rnum=%x kpage=%p", - ret, rnum, kpage); - ret = -EFAULT; - goto ehca_reg_mr_rpages_exit1; - } - rpage = virt_to_abs(kpage); + rpage = __pa(kpage); if (!rpage) { ehca_err(&shca->ib_device, "kpage=%p i=%x", kpage, i); ret = -EFAULT; goto ehca_reg_mr_rpages_exit1; } - } else { /* rnum==1 */ - ret = ehca_set_pagebuf_1(e_mr, pginfo, &rpage); - if (ret) { - ehca_err(&shca->ib_device, "ehca_set_pagebuf_1 " - "bad rc, ret=%x i=%x", ret, i); - ret = -EFAULT; - goto ehca_reg_mr_rpages_exit1; - } - } + } else + rpage = *kpage; - h_ret = hipz_h_register_rpage_mr(shca->ipz_hca_handle, e_mr, - 0, /* pagesize 4k */ - 0, rpage, rnum); + h_ret = hipz_h_register_rpage_mr( + shca->ipz_hca_handle, e_mr, + ehca_encode_hwpage_size(pginfo->hwpage_size), + 0, rpage, rnum); - if (i == ((pginfo->num_4k + 512 - 1) / 512) - 1) { + if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { /* * check for 'registration complete'==H_SUCCESS * and for 'page registered'==H_PAGE_REGISTERED */ if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "last " - "hipz_reg_rpage_mr failed, h_ret=%lx " - "e_mr=%p i=%x hca_hndl=%lx mr_hndl=%lx" + "hipz_reg_rpage_mr failed, h_ret=%lli " + "e_mr=%p i=%x hca_hndl=%llx mr_hndl=%llx" " lkey=%x", h_ret, e_mr, i, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, e_mr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_rrpg_last(h_ret); + ret = ehca2ib_return_code(h_ret); break; } else ret = 0; } else if (h_ret != H_PAGE_REGISTERED) { ehca_err(&shca->ib_device, "hipz_reg_rpage_mr failed, " - "h_ret=%lx e_mr=%p i=%x lkey=%x hca_hndl=%lx " - "mr_hndl=%lx", h_ret, e_mr, i, + "h_ret=%lli e_mr=%p i=%x lkey=%x hca_hndl=%llx " + "mr_hndl=%llx", h_ret, e_mr, i, e_mr->ib.ib_mr.lkey, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle); - ret = ehca_mrmw_map_hrc_rrpg_notlast(h_ret); + ret = ehca2ib_return_code(h_ret); break; } else ret = 0; @@ -1092,12 +1183,12 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, ehca_reg_mr_rpages_exit1: - kfree(kpage); + ehca_free_fw_ctrlblock(kpage); ehca_reg_mr_rpages_exit0: if (ret) - ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p pginfo=%p " - "num_pages=%lx num_4k=%lx", ret, shca, e_mr, pginfo, - pginfo->num_pages, pginfo->num_4k); + ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p pginfo=%p " + "num_kpages=%llx num_hwpages=%llx", ret, shca, e_mr, + pginfo, pginfo->num_kpages, pginfo->num_hwpages); return ret; } /* end ehca_reg_mr_rpages() */ @@ -1119,12 +1210,12 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, u64 *kpage; u64 rpage; struct ehca_mr_pginfo pginfo_save; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); - ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); + ehca_mrmw_set_pgsize_hipz_acl(pginfo->hwpage_size, &hipz_acl); - kpage = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + kpage = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!kpage) { ehca_err(&shca->ib_device, "kpage alloc failed"); ret = -ENOMEM; @@ -1132,15 +1223,15 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, } pginfo_save = *pginfo; - ret = ehca_set_pagebuf(e_mr, pginfo, pginfo->num_4k, kpage); + ret = ehca_set_pagebuf(pginfo, pginfo->num_hwpages, kpage); if (ret) { ehca_err(&shca->ib_device, "set pagebuf failed, e_mr=%p " - "pginfo=%p type=%x num_pages=%lx num_4k=%lx kpage=%p", - e_mr, pginfo, pginfo->type, pginfo->num_pages, - pginfo->num_4k,kpage); + "pginfo=%p type=%x num_kpages=%llx num_hwpages=%llx " + "kpage=%p", e_mr, pginfo, pginfo->type, + pginfo->num_kpages, pginfo->num_hwpages, kpage); goto ehca_rereg_mr_rereg1_exit1; } - rpage = virt_to_abs(kpage); + rpage = __pa(kpage); if (!rpage) { ehca_err(&shca->ib_device, "kpage=%p", kpage); ret = -EFAULT; @@ -1156,13 +1247,13 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, * (MW bound or MR is shared) */ ehca_warn(&shca->ib_device, "hipz_h_reregister_pmr failed " - "(Rereg1), h_ret=%lx e_mr=%p", h_ret, e_mr); + "(Rereg1), h_ret=%lli e_mr=%p", h_ret, e_mr); *pginfo = pginfo_save; ret = -EAGAIN; - } else if ((u64*)hipzout.vaddr != iova_start) { + } else if ((u64 *)hipzout.vaddr != iova_start) { ehca_err(&shca->ib_device, "PHYP changed iova_start in " - "rereg_pmr, iova_start=%p iova_start_out=%lx e_mr=%p " - "mr_handle=%lx lkey=%x lkey_out=%x", iova_start, + "rereg_pmr, iova_start=%p iova_start_out=%llx e_mr=%p " + "mr_handle=%llx lkey=%x lkey_out=%x", iova_start, hipzout.vaddr, e_mr, e_mr->ipz_mr_handle.handle, e_mr->ib.ib_mr.lkey, hipzout.lkey); ret = -EFAULT; @@ -1171,23 +1262,24 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, * successful reregistration * note: start and start_out are identical for eServer HCAs */ - e_mr->num_pages = pginfo->num_pages; - e_mr->num_4k = pginfo->num_4k; - e_mr->start = iova_start; - e_mr->size = size; - e_mr->acl = acl; + e_mr->num_kpages = pginfo->num_kpages; + e_mr->num_hwpages = pginfo->num_hwpages; + e_mr->hwpage_size = pginfo->hwpage_size; + e_mr->start = iova_start; + e_mr->size = size; + e_mr->acl = acl; *lkey = hipzout.lkey; *rkey = hipzout.rkey; } ehca_rereg_mr_rereg1_exit1: - kfree(kpage); + ehca_free_fw_ctrlblock(kpage); ehca_rereg_mr_rereg1_exit0: if ( ret && (ret != -EAGAIN) ) - ehca_err(&shca->ib_device, "ret=%x lkey=%x rkey=%x " - "pginfo=%p num_pages=%lx num_4k=%lx", - ret, *lkey, *rkey, pginfo, pginfo->num_pages, - pginfo->num_4k); + ehca_err(&shca->ib_device, "ret=%i lkey=%x rkey=%x " + "pginfo=%p num_kpages=%llx num_hwpages=%llx", + ret, *lkey, *rkey, pginfo, pginfo->num_kpages, + pginfo->num_hwpages); return ret; } /* end ehca_rereg_mr_rereg1() */ @@ -1209,10 +1301,12 @@ int ehca_rereg_mr(struct ehca_shca *shca, int rereg_3_hcall = 0; /* 1: use 3 hipz calls for reregistration */ /* first determine reregistration hCall(s) */ - if ((pginfo->num_4k > 512) || (e_mr->num_4k > 512) || - (pginfo->num_4k > e_mr->num_4k)) { - ehca_dbg(&shca->ib_device, "Rereg3 case, pginfo->num_4k=%lx " - "e_mr->num_4k=%x", pginfo->num_4k, e_mr->num_4k); + if ((pginfo->num_hwpages > MAX_RPAGES) || + (e_mr->num_hwpages > MAX_RPAGES) || + (pginfo->num_hwpages > e_mr->num_hwpages)) { + ehca_dbg(&shca->ib_device, "Rereg3 case, " + "pginfo->num_hwpages=%llx e_mr->num_hwpages=%x", + pginfo->num_hwpages, e_mr->num_hwpages); rereg_1_hcall = 0; rereg_3_hcall = 1; } @@ -1243,12 +1337,12 @@ int ehca_rereg_mr(struct ehca_shca *shca, h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "hipz_free_mr failed, " - "h_ret=%lx e_mr=%p hca_hndl=%lx mr_hndl=%lx " + "h_ret=%lli e_mr=%p hca_hndl=%llx mr_hndl=%llx " "mr->lkey=%x", h_ret, e_mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, e_mr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto ehca_rereg_mr_exit0; } /* clean ehca_mr_t, without changing struct ib_mr and lock */ @@ -1257,13 +1351,14 @@ int ehca_rereg_mr(struct ehca_shca *shca, /* set some MR values */ e_mr->flags = save_mr.flags; + e_mr->hwpage_size = save_mr.hwpage_size; e_mr->fmr_page_size = save_mr.fmr_page_size; e_mr->fmr_max_pages = save_mr.fmr_max_pages; e_mr->fmr_max_maps = save_mr.fmr_max_maps; e_mr->fmr_map_cnt = save_mr.fmr_map_cnt; ret = ehca_reg_mr(shca, e_mr, iova_start, size, acl, - e_pd, pginfo, lkey, rkey); + e_pd, pginfo, lkey, rkey, EHCA_REG_MR); if (ret) { u32 offset = (u64)(&e_mr->flags) - (u64)e_mr; memcpy(&e_mr->flags, &(save_mr.flags), @@ -1274,11 +1369,11 @@ int ehca_rereg_mr(struct ehca_shca *shca, ehca_rereg_mr_exit0: if (ret) - ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p " - "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " - "num_pages=%lx lkey=%x rkey=%x rereg_1_hcall=%x " + ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p " + "iova_start=%p size=%llx acl=%x e_pd=%p pginfo=%p " + "num_kpages=%llx lkey=%x rkey=%x rereg_1_hcall=%x " "rereg_3_hcall=%x", ret, shca, e_mr, iova_start, size, - acl, e_pd, pginfo, pginfo->num_pages, *lkey, *rkey, + acl, e_pd, pginfo, pginfo->num_kpages, *lkey, *rkey, rereg_1_hcall, rereg_3_hcall); return ret; } /* end ehca_rereg_mr() */ @@ -1290,97 +1385,84 @@ int ehca_unmap_one_fmr(struct ehca_shca *shca, { int ret = 0; u64 h_ret; - int rereg_1_hcall = 1; /* 1: use hipz_mr_reregister directly */ - int rereg_3_hcall = 0; /* 1: use 3 hipz calls for unmapping */ struct ehca_pd *e_pd = container_of(e_fmr->ib.ib_fmr.pd, struct ehca_pd, ib_pd); struct ehca_mr save_fmr; u32 tmp_lkey, tmp_rkey; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_pginfo pginfo; + struct ehca_mr_hipzout_parms hipzout; + struct ehca_mr save_mr; - /* first check if reregistration hCall can be used for unmap */ - if (e_fmr->fmr_max_pages > 512) { - rereg_1_hcall = 0; - rereg_3_hcall = 1; - } - - if (rereg_1_hcall) { + if (e_fmr->fmr_max_pages <= MAX_RPAGES) { /* * note: after using rereg hcall with len=0, * rereg hcall must be used again for registering pages */ h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_fmr, 0, 0, 0, e_pd->fw_pd, 0, &hipzout); - if (h_ret != H_SUCCESS) { - /* - * should not happen, because length checked above, - * FMRs are not shared and no MW bound to FMRs - */ - ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " - "(Rereg1), h_ret=%lx e_fmr=%p hca_hndl=%lx " - "mr_hndl=%lx lkey=%x lkey_out=%x", - h_ret, e_fmr, shca->ipz_hca_handle.handle, - e_fmr->ipz_mr_handle.handle, - e_fmr->ib.ib_fmr.lkey, hipzout.lkey); - rereg_3_hcall = 1; - } else { + if (h_ret == H_SUCCESS) { /* successful reregistration */ e_fmr->start = NULL; e_fmr->size = 0; tmp_lkey = hipzout.lkey; tmp_rkey = hipzout.rkey; + return 0; } + /* + * should not happen, because length checked above, + * FMRs are not shared and no MW bound to FMRs + */ + ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " + "(Rereg1), h_ret=%lli e_fmr=%p hca_hndl=%llx " + "mr_hndl=%llx lkey=%x lkey_out=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, + e_fmr->ib.ib_fmr.lkey, hipzout.lkey); + /* try free and rereg */ } - if (rereg_3_hcall) { - struct ehca_mr save_mr; - - /* first free old FMR */ - h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); - if (h_ret != H_SUCCESS) { - ehca_err(&shca->ib_device, "hipz_free_mr failed, " - "h_ret=%lx e_fmr=%p hca_hndl=%lx mr_hndl=%lx " - "lkey=%x", - h_ret, e_fmr, shca->ipz_hca_handle.handle, - e_fmr->ipz_mr_handle.handle, - e_fmr->ib.ib_fmr.lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); - goto ehca_unmap_one_fmr_exit0; - } - /* clean ehca_mr_t, without changing lock */ - save_fmr = *e_fmr; - ehca_mr_deletenew(e_fmr); - - /* set some MR values */ - e_fmr->flags = save_fmr.flags; - e_fmr->fmr_page_size = save_fmr.fmr_page_size; - e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; - e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; - e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; - e_fmr->acl = save_fmr.acl; - - pginfo.type = EHCA_MR_PGI_FMR; - pginfo.num_pages = 0; - pginfo.num_4k = 0; - ret = ehca_reg_mr(shca, e_fmr, NULL, - (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), - e_fmr->acl, e_pd, &pginfo, &tmp_lkey, - &tmp_rkey); - if (ret) { - u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; - memcpy(&e_fmr->flags, &(save_mr.flags), - sizeof(struct ehca_mr) - offset); - goto ehca_unmap_one_fmr_exit0; - } + /* first free old FMR */ + h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_free_mr failed, " + "h_ret=%lli e_fmr=%p hca_hndl=%llx mr_hndl=%llx " + "lkey=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, + e_fmr->ib.ib_fmr.lkey); + ret = ehca2ib_return_code(h_ret); + goto ehca_unmap_one_fmr_exit0; + } + /* clean ehca_mr_t, without changing lock */ + save_fmr = *e_fmr; + ehca_mr_deletenew(e_fmr); + + /* set some MR values */ + e_fmr->flags = save_fmr.flags; + e_fmr->hwpage_size = save_fmr.hwpage_size; + e_fmr->fmr_page_size = save_fmr.fmr_page_size; + e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; + e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; + e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; + e_fmr->acl = save_fmr.acl; + + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_FMR; + ret = ehca_reg_mr(shca, e_fmr, NULL, + (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), + e_fmr->acl, e_pd, &pginfo, &tmp_lkey, + &tmp_rkey, EHCA_REG_MR); + if (ret) { + u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; + memcpy(&e_fmr->flags, &(save_mr.flags), + sizeof(struct ehca_mr) - offset); } ehca_unmap_one_fmr_exit0: if (ret) - ehca_err(&shca->ib_device, "ret=%x tmp_lkey=%x tmp_rkey=%x " - "fmr_max_pages=%x rereg_1_hcall=%x rereg_3_hcall=%x", - ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages, - rereg_1_hcall, rereg_3_hcall); + ehca_err(&shca->ib_device, "ret=%i tmp_lkey=%x tmp_rkey=%x " + "fmr_max_pages=%x", + ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages); return ret; } /* end ehca_unmap_one_fmr() */ @@ -1398,31 +1480,32 @@ int ehca_reg_smr(struct ehca_shca *shca, int ret = 0; u64 h_ret; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); - ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); + ehca_mrmw_set_pgsize_hipz_acl(e_origmr->hwpage_size, &hipz_acl); h_ret = hipz_h_register_smr(shca->ipz_hca_handle, e_newmr, e_origmr, (u64)iova_start, hipz_acl, e_pd->fw_pd, &hipzout); if (h_ret != H_SUCCESS) { - ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%lx " + ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%lli " "shca=%p e_origmr=%p e_newmr=%p iova_start=%p acl=%x " - "e_pd=%p hca_hndl=%lx mr_hndl=%lx lkey=%x", + "e_pd=%p hca_hndl=%llx mr_hndl=%llx lkey=%x", h_ret, shca, e_origmr, e_newmr, iova_start, acl, e_pd, shca->ipz_hca_handle.handle, e_origmr->ipz_mr_handle.handle, e_origmr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_reg_smr(h_ret); + ret = ehca2ib_return_code(h_ret); goto ehca_reg_smr_exit0; } /* successful registration */ - e_newmr->num_pages = e_origmr->num_pages; - e_newmr->num_4k = e_origmr->num_4k; - e_newmr->start = iova_start; - e_newmr->size = e_origmr->size; - e_newmr->acl = acl; + e_newmr->num_kpages = e_origmr->num_kpages; + e_newmr->num_hwpages = e_origmr->num_hwpages; + e_newmr->hwpage_size = e_origmr->hwpage_size; + e_newmr->start = iova_start; + e_newmr->size = e_origmr->size; + e_newmr->acl = acl; e_newmr->ipz_mr_handle = hipzout.handle; *lkey = hipzout.lkey; *rkey = hipzout.rkey; @@ -1430,13 +1513,97 @@ int ehca_reg_smr(struct ehca_shca *shca, ehca_reg_smr_exit0: if (ret) - ehca_err(&shca->ib_device, "ret=%x shca=%p e_origmr=%p " + ehca_err(&shca->ib_device, "ret=%i shca=%p e_origmr=%p " "e_newmr=%p iova_start=%p acl=%x e_pd=%p", ret, shca, e_origmr, e_newmr, iova_start, acl, e_pd); return ret; } /* end ehca_reg_smr() */ /*----------------------------------------------------------------------*/ +static inline void *ehca_calc_sectbase(int top, int dir, int idx) +{ + unsigned long ret = idx; + ret |= dir << EHCA_DIR_INDEX_SHIFT; + ret |= top << EHCA_TOP_INDEX_SHIFT; + return __va(ret << SECTION_SIZE_BITS); +} + +#define ehca_bmap_valid(entry) \ + ((u64)entry != (u64)EHCA_INVAL_ADDR) + +static u64 ehca_reg_mr_section(int top, int dir, int idx, u64 *kpage, + struct ehca_shca *shca, struct ehca_mr *mr, + struct ehca_mr_pginfo *pginfo) +{ + u64 h_ret = 0; + unsigned long page = 0; + u64 rpage = __pa(kpage); + int page_count; + + void *sectbase = ehca_calc_sectbase(top, dir, idx); + if ((unsigned long)sectbase & (pginfo->hwpage_size - 1)) { + ehca_err(&shca->ib_device, "reg_mr_section will probably fail:" + "hwpage_size does not fit to " + "section start address"); + } + page_count = EHCA_SECTSIZE / pginfo->hwpage_size; + + while (page < page_count) { + u64 rnum; + for (rnum = 0; (rnum < MAX_RPAGES) && (page < page_count); + rnum++) { + void *pg = sectbase + ((page++) * pginfo->hwpage_size); + kpage[rnum] = __pa(pg); + } + + h_ret = hipz_h_register_rpage_mr(shca->ipz_hca_handle, mr, + ehca_encode_hwpage_size(pginfo->hwpage_size), + 0, rpage, rnum); + + if ((h_ret != H_SUCCESS) && (h_ret != H_PAGE_REGISTERED)) { + ehca_err(&shca->ib_device, "register_rpage_mr failed"); + return h_ret; + } + } + return h_ret; +} + +static u64 ehca_reg_mr_sections(int top, int dir, u64 *kpage, + struct ehca_shca *shca, struct ehca_mr *mr, + struct ehca_mr_pginfo *pginfo) +{ + u64 hret = H_SUCCESS; + int idx; + + for (idx = 0; idx < EHCA_MAP_ENTRIES; idx++) { + if (!ehca_bmap_valid(ehca_bmap->top[top]->dir[dir]->ent[idx])) + continue; + + hret = ehca_reg_mr_section(top, dir, idx, kpage, shca, mr, + pginfo); + if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED)) + return hret; + } + return hret; +} + +static u64 ehca_reg_mr_dir_sections(int top, u64 *kpage, struct ehca_shca *shca, + struct ehca_mr *mr, + struct ehca_mr_pginfo *pginfo) +{ + u64 hret = H_SUCCESS; + int dir; + + for (dir = 0; dir < EHCA_MAP_ENTRIES; dir++) { + if (!ehca_bmap_valid(ehca_bmap->top[top]->dir[dir])) + continue; + + hret = ehca_reg_mr_sections(top, dir, kpage, shca, mr, pginfo); + if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED)) + return hret; + } + return hret; +} /* register internal max-MR to internal SHCA */ int ehca_reg_internal_maxmr( @@ -1448,10 +1615,16 @@ int ehca_reg_internal_maxmr( struct ehca_mr *e_mr; u64 *iova_start; u64 size_maxmr; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; struct ib_phys_buf ib_pbuf; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ + u32 num_kpages; + u32 num_hwpages; + u64 hw_pgsize; + + if (!ehca_bmap) { + ret = -EFAULT; + goto ehca_reg_internal_maxmr_exit0; + } e_mr = ehca_mr_new(); if (!e_mr) { @@ -1462,29 +1635,32 @@ int ehca_reg_internal_maxmr( e_mr->flags |= EHCA_MR_FLAG_MAXMR; /* register internal max-MR on HCA */ - size_maxmr = (u64)high_memory - PAGE_OFFSET; - iova_start = (u64*)KERNELBASE; + size_maxmr = ehca_mr_len; + iova_start = (u64 *)ehca_map_vaddr((void *)(KERNELBASE + PHYSICAL_START)); ib_pbuf.addr = 0; ib_pbuf.size = size_maxmr; - num_pages_mr = ((((u64)iova_start % PAGE_SIZE) + size_maxmr + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)iova_start % EHCA_PAGESIZE) + size_maxmr + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = 1; - pginfo.phys_buf_array = &ib_pbuf; + num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size_maxmr, + PAGE_SIZE); + hw_pgsize = ehca_get_max_hwpage_size(shca); + num_hwpages = NUM_CHUNKS(((u64)iova_start % hw_pgsize) + size_maxmr, + hw_pgsize); + + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.hwpage_size = hw_pgsize; + pginfo.u.phy.num_phys_buf = 1; + pginfo.u.phy.phys_buf_array = &ib_pbuf; ret = ehca_reg_mr(shca, e_mr, iova_start, size_maxmr, 0, e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, - &e_mr->ib.ib_mr.rkey); + &e_mr->ib.ib_mr.rkey, EHCA_REG_BUSMAP_MR); if (ret) { ehca_err(&shca->ib_device, "reg of internal max MR failed, " - "e_mr=%p iova_start=%p size_maxmr=%lx num_pages_mr=%x " - "num_pages_4k=%x", e_mr, iova_start, size_maxmr, - num_pages_mr, num_pages_4k); + "e_mr=%p iova_start=%p size_maxmr=%llx num_kpages=%x " + "num_hwpages=%x", e_mr, iova_start, size_maxmr, + num_kpages, num_hwpages); goto ehca_reg_internal_maxmr_exit1; } @@ -1501,7 +1677,7 @@ ehca_reg_internal_maxmr_exit1: ehca_mr_delete(e_mr); ehca_reg_internal_maxmr_exit0: if (ret) - ehca_err(&shca->ib_device, "ret=%x shca=%p e_pd=%p e_maxmr=%p", + ehca_err(&shca->ib_device, "ret=%i shca=%p e_pd=%p e_maxmr=%p", ret, shca, e_pd, e_maxmr); return ret; } /* end ehca_reg_internal_maxmr() */ @@ -1519,28 +1695,29 @@ int ehca_reg_maxmr(struct ehca_shca *shca, u64 h_ret; struct ehca_mr *e_origmr = shca->maxmr; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); - ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); + ehca_mrmw_set_pgsize_hipz_acl(e_origmr->hwpage_size, &hipz_acl); h_ret = hipz_h_register_smr(shca->ipz_hca_handle, e_newmr, e_origmr, (u64)iova_start, hipz_acl, e_pd->fw_pd, &hipzout); if (h_ret != H_SUCCESS) { - ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%lx " - "e_origmr=%p hca_hndl=%lx mr_hndl=%lx lkey=%x", + ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%lli " + "e_origmr=%p hca_hndl=%llx mr_hndl=%llx lkey=%x", h_ret, e_origmr, shca->ipz_hca_handle.handle, e_origmr->ipz_mr_handle.handle, e_origmr->ib.ib_mr.lkey); - return ehca_mrmw_map_hrc_reg_smr(h_ret); + return ehca2ib_return_code(h_ret); } /* successful registration */ - e_newmr->num_pages = e_origmr->num_pages; - e_newmr->num_4k = e_origmr->num_4k; - e_newmr->start = iova_start; - e_newmr->size = e_origmr->size; - e_newmr->acl = acl; + e_newmr->num_kpages = e_origmr->num_kpages; + e_newmr->num_hwpages = e_origmr->num_hwpages; + e_newmr->hwpage_size = e_origmr->hwpage_size; + e_newmr->start = iova_start; + e_newmr->size = e_origmr->size; + e_newmr->acl = acl; e_newmr->ipz_mr_handle = hipzout.handle; *lkey = hipzout.lkey; *rkey = hipzout.rkey; @@ -1568,7 +1745,7 @@ int ehca_dereg_internal_maxmr(struct ehca_shca *shca) ret = ehca_dereg_mr(&e_maxmr->ib.ib_mr); if (ret) { ehca_err(&shca->ib_device, "dereg internal max-MR failed, " - "ret=%x e_maxmr=%p shca=%p lkey=%x", + "ret=%i e_maxmr=%p shca=%p lkey=%x", ret, e_maxmr, shca, e_maxmr->ib.ib_mr.lkey); shca->maxmr = e_maxmr; goto ehca_dereg_internal_maxmr_exit0; @@ -1578,7 +1755,7 @@ int ehca_dereg_internal_maxmr(struct ehca_shca *shca) ehca_dereg_internal_maxmr_exit0: if (ret) - ehca_err(&shca->ib_device, "ret=%x shca=%p shca->maxmr=%p", + ehca_err(&shca->ib_device, "ret=%i shca=%p shca->maxmr=%p", ret, shca, shca->maxmr); return ret; } /* end ehca_dereg_internal_maxmr() */ @@ -1605,28 +1782,28 @@ int ehca_mr_chk_buf_and_calc_size(struct ib_phys_buf *phys_buf_array, /* check first buffer */ if (((u64)iova_start & ~PAGE_MASK) != (pbuf->addr & ~PAGE_MASK)) { ehca_gen_err("iova_start/addr mismatch, iova_start=%p " - "pbuf->addr=%lx pbuf->size=%lx", + "pbuf->addr=%llx pbuf->size=%llx", iova_start, pbuf->addr, pbuf->size); return -EINVAL; } if (((pbuf->addr + pbuf->size) % PAGE_SIZE) && (num_phys_buf > 1)) { - ehca_gen_err("addr/size mismatch in 1st buf, pbuf->addr=%lx " - "pbuf->size=%lx", pbuf->addr, pbuf->size); + ehca_gen_err("addr/size mismatch in 1st buf, pbuf->addr=%llx " + "pbuf->size=%llx", pbuf->addr, pbuf->size); return -EINVAL; } for (i = 0; i < num_phys_buf; i++) { if ((i > 0) && (pbuf->addr % PAGE_SIZE)) { - ehca_gen_err("bad address, i=%x pbuf->addr=%lx " - "pbuf->size=%lx", + ehca_gen_err("bad address, i=%x pbuf->addr=%llx " + "pbuf->size=%llx", i, pbuf->addr, pbuf->size); return -EINVAL; } if (((i > 0) && /* not 1st */ (i < (num_phys_buf - 1)) && /* not last */ (pbuf->size % PAGE_SIZE)) || (pbuf->size == 0)) { - ehca_gen_err("bad size, i=%x pbuf->size=%lx", + ehca_gen_err("bad size, i=%x pbuf->size=%llx", i, pbuf->size); return -EINVAL; } @@ -1659,7 +1836,7 @@ int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, page = page_list; for (i = 0; i < list_len; i++) { if (*page % e_fmr->fmr_page_size) { - ehca_gen_err("bad page, i=%x *page=%lx page=%p fmr=%p " + ehca_gen_err("bad page, i=%x *page=%llx page=%p fmr=%p " "fmr_page_size=%x", i, *page, page, e_fmr, e_fmr->fmr_page_size); return -EINVAL; @@ -1672,299 +1849,295 @@ int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, /*----------------------------------------------------------------------*/ -/* setup page buffer from page info */ -int ehca_set_pagebuf(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, - u32 number, - u64 *kpage) +/* PAGE_SIZE >= pginfo->hwpage_size */ +static int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) { int ret = 0; - struct ib_umem_chunk *prev_chunk; - struct ib_umem_chunk *chunk; - struct ib_phys_buf *pbuf; - u64 *fmrlist; - u64 num4k, pgaddr, offs4k; - u32 i = 0; + u64 pgaddr; u32 j = 0; + int hwpages_per_kpage = PAGE_SIZE / pginfo->hwpage_size; + struct scatterlist **sg = &pginfo->u.usr.next_sg; + + while (*sg != NULL) { + pgaddr = page_to_pfn(sg_page(*sg)) + << PAGE_SHIFT; + *kpage = pgaddr + (pginfo->next_hwpage * + pginfo->hwpage_size); + if (!(*kpage)) { + ehca_gen_err("pgaddr=%llx " + "sg_dma_address=%llx " + "entry=%llx next_hwpage=%llx", + pgaddr, (u64)sg_dma_address(*sg), + pginfo->u.usr.next_nmap, + pginfo->next_hwpage); + return -EFAULT; + } + (pginfo->hwpage_cnt)++; + (pginfo->next_hwpage)++; + kpage++; + if (pginfo->next_hwpage % hwpages_per_kpage == 0) { + (pginfo->kpage_cnt)++; + (pginfo->u.usr.next_nmap)++; + pginfo->next_hwpage = 0; + *sg = sg_next(*sg); + } + j++; + if (j >= number) + break; + } - if (pginfo->type == EHCA_MR_PGI_PHYS) { - /* loop over desired phys_buf_array entries */ - while (i < number) { - pbuf = pginfo->phys_buf_array + pginfo->next_buf; - num4k = ((pbuf->addr % EHCA_PAGESIZE) + pbuf->size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE; - offs4k = (pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; - while (pginfo->next_4k < offs4k + num4k) { - /* sanity check */ - if ((pginfo->page_cnt >= pginfo->num_pages) || - (pginfo->page_4k_cnt >= pginfo->num_4k)) { - ehca_gen_err("page_cnt >= num_pages, " - "page_cnt=%lx " - "num_pages=%lx " - "page_4k_cnt=%lx " - "num_4k=%lx i=%x", - pginfo->page_cnt, - pginfo->num_pages, - pginfo->page_4k_cnt, - pginfo->num_4k, i); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; - } - *kpage = phys_to_abs( - (pbuf->addr & EHCA_PAGEMASK) - + (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*kpage) && pbuf->addr ) { - ehca_gen_err("pbuf->addr=%lx " - "pbuf->size=%lx " - "next_4k=%lx", pbuf->addr, - pbuf->size, - pginfo->next_4k); + return ret; +} + +/* + * check given pages for contiguous layout + * last page addr is returned in prev_pgaddr for further check + */ +static int ehca_check_kpages_per_ate(struct scatterlist **sg, + int num_pages, + u64 *prev_pgaddr) +{ + for (; *sg && num_pages > 0; *sg = sg_next(*sg), num_pages--) { + u64 pgaddr = page_to_pfn(sg_page(*sg)) << PAGE_SHIFT; + if (ehca_debug_level >= 3) + ehca_gen_dbg("chunk_page=%llx value=%016llx", pgaddr, + *(u64 *)__va(pgaddr)); + if (pgaddr - PAGE_SIZE != *prev_pgaddr) { + ehca_gen_err("uncontiguous page found pgaddr=%llx " + "prev_pgaddr=%llx entries_left_in_hwpage=%x", + pgaddr, *prev_pgaddr, num_pages); + return -EINVAL; + } + *prev_pgaddr = pgaddr; + } + return 0; +} + +/* PAGE_SIZE < pginfo->hwpage_size */ +static int ehca_set_pagebuf_user2(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) +{ + int ret = 0; + u64 pgaddr, prev_pgaddr; + u32 j = 0; + int kpages_per_hwpage = pginfo->hwpage_size / PAGE_SIZE; + int nr_kpages = kpages_per_hwpage; + struct scatterlist **sg = &pginfo->u.usr.next_sg; + + while (*sg != NULL) { + + if (nr_kpages == kpages_per_hwpage) { + pgaddr = (page_to_pfn(sg_page(*sg)) + << PAGE_SHIFT); + *kpage = pgaddr; + if (!(*kpage)) { + ehca_gen_err("pgaddr=%llx entry=%llx", + pgaddr, pginfo->u.usr.next_nmap); + ret = -EFAULT; + return ret; + } + /* + * The first page in a hwpage must be aligned; + * the first MR page is exempt from this rule. + */ + if (pgaddr & (pginfo->hwpage_size - 1)) { + if (pginfo->hwpage_cnt) { + ehca_gen_err( + "invalid alignment " + "pgaddr=%llx entry=%llx " + "mr_pgsize=%llx", + pgaddr, pginfo->u.usr.next_nmap, + pginfo->hwpage_size); ret = -EFAULT; - goto ehca_set_pagebuf_exit0; + return ret; } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) - (pginfo->page_cnt)++; - kpage++; - i++; - if (i >= number) break; + /* first MR page */ + pginfo->kpage_cnt = + (pgaddr & + (pginfo->hwpage_size - 1)) >> + PAGE_SHIFT; + nr_kpages -= pginfo->kpage_cnt; + *kpage = pgaddr & + ~(pginfo->hwpage_size - 1); } - if (pginfo->next_4k >= offs4k + num4k) { - (pginfo->next_buf)++; - pginfo->next_4k = 0; + if (ehca_debug_level >= 3) { + u64 val = *(u64 *)__va(pgaddr); + ehca_gen_dbg("kpage=%llx page=%llx " + "value=%016llx", + *kpage, pgaddr, val); } + prev_pgaddr = pgaddr; + *sg = sg_next(*sg); + pginfo->kpage_cnt++; + pginfo->u.usr.next_nmap++; + nr_kpages--; + if (!nr_kpages) + goto next_kpage; + continue; } - } else if (pginfo->type == EHCA_MR_PGI_USER) { - /* loop over desired chunk entries */ - chunk = pginfo->next_chunk; - prev_chunk = pginfo->next_chunk; - list_for_each_entry_continue(chunk, - (&(pginfo->region->chunk_list)), - list) { - for (i = pginfo->next_nmap; i < chunk->nmap; ) { - pgaddr = ( page_to_pfn(chunk->page_list[i].page) - << PAGE_SHIFT ); - *kpage = phys_to_abs(pgaddr + - (pginfo->next_4k * - EHCA_PAGESIZE)); - if ( !(*kpage) ) { - ehca_gen_err("pgaddr=%lx " - "chunk->page_list[i]=%lx " - "i=%x next_4k=%lx mr=%p", - pgaddr, - (u64)sg_dma_address( - &chunk-> - page_list[i]), - i, pginfo->next_4k, e_mr); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - kpage++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_nmap)++; - pginfo->next_4k = 0; - i++; - } - j++; - if (j >= number) break; + + ret = ehca_check_kpages_per_ate(sg, nr_kpages, + &prev_pgaddr); + if (ret) + return ret; + pginfo->kpage_cnt += nr_kpages; + pginfo->u.usr.next_nmap += nr_kpages; + +next_kpage: + nr_kpages = kpages_per_hwpage; + (pginfo->hwpage_cnt)++; + kpage++; + j++; + if (j >= number) + break; + } + + return ret; +} + +static int ehca_set_pagebuf_phys(struct ehca_mr_pginfo *pginfo, + u32 number, u64 *kpage) +{ + int ret = 0; + struct ib_phys_buf *pbuf; + u64 num_hw, offs_hw; + u32 i = 0; + + /* loop over desired phys_buf_array entries */ + while (i < number) { + pbuf = pginfo->u.phy.phys_buf_array + pginfo->u.phy.next_buf; + num_hw = NUM_CHUNKS((pbuf->addr % pginfo->hwpage_size) + + pbuf->size, pginfo->hwpage_size); + offs_hw = (pbuf->addr & ~(pginfo->hwpage_size - 1)) / + pginfo->hwpage_size; + while (pginfo->next_hwpage < offs_hw + num_hw) { + /* sanity check */ + if ((pginfo->kpage_cnt >= pginfo->num_kpages) || + (pginfo->hwpage_cnt >= pginfo->num_hwpages)) { + ehca_gen_err("kpage_cnt >= num_kpages, " + "kpage_cnt=%llx num_kpages=%llx " + "hwpage_cnt=%llx " + "num_hwpages=%llx i=%x", + pginfo->kpage_cnt, + pginfo->num_kpages, + pginfo->hwpage_cnt, + pginfo->num_hwpages, i); + return -EFAULT; } - if ((pginfo->next_nmap >= chunk->nmap) && - (j >= number)) { - pginfo->next_nmap = 0; - prev_chunk = chunk; - break; - } else if (pginfo->next_nmap >= chunk->nmap) { - pginfo->next_nmap = 0; - prev_chunk = chunk; - } else if (j >= number) - break; - else - prev_chunk = chunk; - } - pginfo->next_chunk = - list_prepare_entry(prev_chunk, - (&(pginfo->region->chunk_list)), - list); - } else if (pginfo->type == EHCA_MR_PGI_FMR) { - /* loop over desired page_list entries */ - fmrlist = pginfo->page_list + pginfo->next_listelem; - for (i = 0; i < number; i++) { - *kpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + - pginfo->next_4k * EHCA_PAGESIZE); - if ( !(*kpage) ) { - ehca_gen_err("*fmrlist=%lx fmrlist=%p " - "next_listelem=%lx next_4k=%lx", - *fmrlist, fmrlist, - pginfo->next_listelem, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; + *kpage = (pbuf->addr & ~(pginfo->hwpage_size - 1)) + + (pginfo->next_hwpage * pginfo->hwpage_size); + if ( !(*kpage) && pbuf->addr ) { + ehca_gen_err("pbuf->addr=%llx pbuf->size=%llx " + "next_hwpage=%llx", pbuf->addr, + pbuf->size, pginfo->next_hwpage); + return -EFAULT; } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; + (pginfo->hwpage_cnt)++; + (pginfo->next_hwpage)++; + if (PAGE_SIZE >= pginfo->hwpage_size) { + if (pginfo->next_hwpage % + (PAGE_SIZE / pginfo->hwpage_size) == 0) + (pginfo->kpage_cnt)++; + } else + pginfo->kpage_cnt += pginfo->hwpage_size / + PAGE_SIZE; kpage++; - if (pginfo->next_4k % - (e_mr->fmr_page_size / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_listelem)++; - fmrlist++; - pginfo->next_4k = 0; - } + i++; + if (i >= number) break; + } + if (pginfo->next_hwpage >= offs_hw + num_hw) { + (pginfo->u.phy.next_buf)++; + pginfo->next_hwpage = 0; } - } else { - ehca_gen_err("bad pginfo->type=%x", pginfo->type); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; } - -ehca_set_pagebuf_exit0: - if (ret) - ehca_gen_err("ret=%x e_mr=%p pginfo=%p type=%x num_pages=%lx " - "num_4k=%lx next_buf=%lx next_4k=%lx number=%x " - "kpage=%p page_cnt=%lx page_4k_cnt=%lx i=%x " - "next_listelem=%lx region=%p next_chunk=%p " - "next_nmap=%lx", ret, e_mr, pginfo, pginfo->type, - pginfo->num_pages, pginfo->num_4k, - pginfo->next_buf, pginfo->next_4k, number, kpage, - pginfo->page_cnt, pginfo->page_4k_cnt, i, - pginfo->next_listelem, pginfo->region, - pginfo->next_chunk, pginfo->next_nmap); return ret; -} /* end ehca_set_pagebuf() */ - -/*----------------------------------------------------------------------*/ +} -/* setup 1 page from page info page buffer */ -int ehca_set_pagebuf_1(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, - u64 *rpage) +static int ehca_set_pagebuf_fmr(struct ehca_mr_pginfo *pginfo, + u32 number, u64 *kpage) { int ret = 0; - struct ib_phys_buf *tmp_pbuf; u64 *fmrlist; - struct ib_umem_chunk *chunk; - struct ib_umem_chunk *prev_chunk; - u64 pgaddr, num4k, offs4k; - - if (pginfo->type == EHCA_MR_PGI_PHYS) { - /* sanity check */ - if ((pginfo->page_cnt >= pginfo->num_pages) || - (pginfo->page_4k_cnt >= pginfo->num_4k)) { - ehca_gen_err("page_cnt >= num_pages, page_cnt=%lx " - "num_pages=%lx page_4k_cnt=%lx num_4k=%lx", - pginfo->page_cnt, pginfo->num_pages, - pginfo->page_4k_cnt, pginfo->num_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - tmp_pbuf = pginfo->phys_buf_array + pginfo->next_buf; - num4k = ((tmp_pbuf->addr % EHCA_PAGESIZE) + tmp_pbuf->size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE; - offs4k = (tmp_pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; - *rpage = phys_to_abs((tmp_pbuf->addr & EHCA_PAGEMASK) + - (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*rpage) && tmp_pbuf->addr ) { - ehca_gen_err("tmp_pbuf->addr=%lx" - " tmp_pbuf->size=%lx next_4k=%lx", - tmp_pbuf->addr, tmp_pbuf->size, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % (PAGE_SIZE / EHCA_PAGESIZE) == 0) - (pginfo->page_cnt)++; - if (pginfo->next_4k >= offs4k + num4k) { - (pginfo->next_buf)++; - pginfo->next_4k = 0; + u32 i; + + /* loop over desired page_list entries */ + fmrlist = pginfo->u.fmr.page_list + pginfo->u.fmr.next_listelem; + for (i = 0; i < number; i++) { + *kpage = (*fmrlist & ~(pginfo->hwpage_size - 1)) + + pginfo->next_hwpage * pginfo->hwpage_size; + if ( !(*kpage) ) { + ehca_gen_err("*fmrlist=%llx fmrlist=%p " + "next_listelem=%llx next_hwpage=%llx", + *fmrlist, fmrlist, + pginfo->u.fmr.next_listelem, + pginfo->next_hwpage); + return -EFAULT; } - } else if (pginfo->type == EHCA_MR_PGI_USER) { - chunk = pginfo->next_chunk; - prev_chunk = pginfo->next_chunk; - list_for_each_entry_continue(chunk, - (&(pginfo->region->chunk_list)), - list) { - pgaddr = ( page_to_pfn(chunk->page_list[ - pginfo->next_nmap].page) - << PAGE_SHIFT); - *rpage = phys_to_abs(pgaddr + - (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*rpage) ) { - ehca_gen_err("pgaddr=%lx chunk->page_list[]=%lx" - " next_nmap=%lx next_4k=%lx mr=%p", - pgaddr, (u64)sg_dma_address( - &chunk->page_list[ - pginfo-> - next_nmap]), - pginfo->next_nmap, pginfo->next_4k, - e_mr); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_nmap)++; - pginfo->next_4k = 0; - } - if (pginfo->next_nmap >= chunk->nmap) { - pginfo->next_nmap = 0; - prev_chunk = chunk; + (pginfo->hwpage_cnt)++; + if (pginfo->u.fmr.fmr_pgsize >= pginfo->hwpage_size) { + if (pginfo->next_hwpage % + (pginfo->u.fmr.fmr_pgsize / + pginfo->hwpage_size) == 0) { + (pginfo->kpage_cnt)++; + (pginfo->u.fmr.next_listelem)++; + fmrlist++; + pginfo->next_hwpage = 0; + } else + (pginfo->next_hwpage)++; + } else { + unsigned int cnt_per_hwpage = pginfo->hwpage_size / + pginfo->u.fmr.fmr_pgsize; + unsigned int j; + u64 prev = *kpage; + /* check if adrs are contiguous */ + for (j = 1; j < cnt_per_hwpage; j++) { + u64 p = fmrlist[j] & ~(pginfo->hwpage_size - 1); + if (prev + pginfo->u.fmr.fmr_pgsize != p) { + ehca_gen_err("uncontiguous fmr pages " + "found prev=%llx p=%llx " + "idx=%x", prev, p, i + j); + return -EINVAL; + } + prev = p; } - break; - } - pginfo->next_chunk = - list_prepare_entry(prev_chunk, - (&(pginfo->region->chunk_list)), - list); - } else if (pginfo->type == EHCA_MR_PGI_FMR) { - fmrlist = pginfo->page_list + pginfo->next_listelem; - *rpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + - pginfo->next_4k * EHCA_PAGESIZE); - if ( !(*rpage) ) { - ehca_gen_err("*fmrlist=%lx fmrlist=%p " - "next_listelem=%lx next_4k=%lx", - *fmrlist, fmrlist, pginfo->next_listelem, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; + pginfo->kpage_cnt += cnt_per_hwpage; + pginfo->u.fmr.next_listelem += cnt_per_hwpage; + fmrlist += cnt_per_hwpage; } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (e_mr->fmr_page_size / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_listelem)++; - pginfo->next_4k = 0; - } - } else { + kpage++; + } + return ret; +} + +/* setup page buffer from page info */ +int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) +{ + int ret; + + switch (pginfo->type) { + case EHCA_MR_PGI_PHYS: + ret = ehca_set_pagebuf_phys(pginfo, number, kpage); + break; + case EHCA_MR_PGI_USER: + ret = PAGE_SIZE >= pginfo->hwpage_size ? + ehca_set_pagebuf_user1(pginfo, number, kpage) : + ehca_set_pagebuf_user2(pginfo, number, kpage); + break; + case EHCA_MR_PGI_FMR: + ret = ehca_set_pagebuf_fmr(pginfo, number, kpage); + break; + default: ehca_gen_err("bad pginfo->type=%x", pginfo->type); ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; + break; } - -ehca_set_pagebuf_1_exit0: - if (ret) - ehca_gen_err("ret=%x e_mr=%p pginfo=%p type=%x num_pages=%lx " - "num_4k=%lx next_buf=%lx next_4k=%lx rpage=%p " - "page_cnt=%lx page_4k_cnt=%lx next_listelem=%lx " - "region=%p next_chunk=%p next_nmap=%lx", ret, e_mr, - pginfo, pginfo->type, pginfo->num_pages, - pginfo->num_4k, pginfo->next_buf, pginfo->next_4k, - rpage, pginfo->page_cnt, pginfo->page_4k_cnt, - pginfo->next_listelem, pginfo->region, - pginfo->next_chunk, pginfo->next_nmap); return ret; -} /* end ehca_set_pagebuf_1() */ +} /* end ehca_set_pagebuf() */ /*----------------------------------------------------------------------*/ @@ -1976,8 +2149,8 @@ int ehca_mr_is_maxmr(u64 size, u64 *iova_start) { /* a MR is treated as max-MR only if it fits following: */ - if ((size == ((u64)high_memory - PAGE_OFFSET)) && - (iova_start == (void*)KERNELBASE)) { + if ((size == ehca_mr_len) && + (iova_start == (void *)ehca_map_vaddr((void *)(KERNELBASE + PHYSICAL_START)))) { ehca_gen_dbg("this is a max-MR"); return 1; } else @@ -2006,9 +2179,9 @@ void ehca_mrmw_map_acl(int ib_acl, /*----------------------------------------------------------------------*/ /* sets page size in hipz access control for MR/MW. */ -void ehca_mrmw_set_pgsize_hipz_acl(u32 *hipz_acl) /*INOUT*/ +void ehca_mrmw_set_pgsize_hipz_acl(u32 pgsize, u32 *hipz_acl) /*INOUT*/ { - return; /* HCA supports only 4k */ + *hipz_acl |= (ehca_encode_hwpage_size(pgsize) << 24); } /* end ehca_mrmw_set_pgsize_hipz_acl() */ /*----------------------------------------------------------------------*/ @@ -2037,225 +2210,384 @@ void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, /*----------------------------------------------------------------------*/ /* - * map HIPZ rc to IB retcodes for MR/MW allocations - * Used for hipz_mr_reg_alloc and hipz_mw_alloc. + * MR destructor and constructor + * used in Reregister MR verb, sets all fields in ehca_mr_t to 0, + * except struct ib_mr and spinlock */ -int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc) +void ehca_mr_deletenew(struct ehca_mr *mr) { - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RT_PARM: /* invalid resource type */ - case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ - case H_MLENGTH_PARM: /* invalid memory length */ - case H_MEM_ACCESS_PARM: /* invalid access controls */ - case H_CONSTRAINED: /* resource constraint */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; + mr->flags = 0; + mr->num_kpages = 0; + mr->num_hwpages = 0; + mr->acl = 0; + mr->start = NULL; + mr->fmr_page_size = 0; + mr->fmr_max_pages = 0; + mr->fmr_max_maps = 0; + mr->fmr_map_cnt = 0; + memset(&mr->ipz_mr_handle, 0, sizeof(mr->ipz_mr_handle)); + memset(&mr->galpas, 0, sizeof(mr->galpas)); +} /* end ehca_mr_deletenew() */ + +int ehca_init_mrmw_cache(void) +{ + mr_cache = kmem_cache_create("ehca_cache_mr", + sizeof(struct ehca_mr), 0, + SLAB_HWCACHE_ALIGN, + NULL); + if (!mr_cache) + return -ENOMEM; + mw_cache = kmem_cache_create("ehca_cache_mw", + sizeof(struct ehca_mw), 0, + SLAB_HWCACHE_ALIGN, + NULL); + if (!mw_cache) { + kmem_cache_destroy(mr_cache); + mr_cache = NULL; + return -ENOMEM; } -} /* end ehca_mrmw_map_hrc_alloc() */ + return 0; +} -/*----------------------------------------------------------------------*/ +void ehca_cleanup_mrmw_cache(void) +{ + if (mr_cache) + kmem_cache_destroy(mr_cache); + if (mw_cache) + kmem_cache_destroy(mw_cache); +} -/* - * map HIPZ rc to IB retcodes for MR register rpage - * Used for hipz_h_register_rpage_mr at registering last page - */ -int ehca_mrmw_map_hrc_rrpg_last(const u64 hipz_rc) +static inline int ehca_init_top_bmap(struct ehca_top_bmap *ehca_top_bmap, + int dir) { - switch (hipz_rc) { - case H_SUCCESS: /* registration complete */ - return 0; - case H_PAGE_REGISTERED: /* page registered */ - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ -/* case H_QT_PARM: invalid queue type */ - case H_PARAMETER: /* - * invalid logical address, - * or count zero or greater 512 - */ - case H_TABLE_FULL: /* page table full */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; + if (!ehca_bmap_valid(ehca_top_bmap->dir[dir])) { + ehca_top_bmap->dir[dir] = + kmalloc(sizeof(struct ehca_dir_bmap), GFP_KERNEL); + if (!ehca_top_bmap->dir[dir]) + return -ENOMEM; + /* Set map block to 0xFF according to EHCA_INVAL_ADDR */ + memset(ehca_top_bmap->dir[dir], 0xFF, EHCA_ENT_MAP_SIZE); } -} /* end ehca_mrmw_map_hrc_rrpg_last() */ + return 0; +} -/*----------------------------------------------------------------------*/ +static inline int ehca_init_bmap(struct ehca_bmap *ehca_bmap, int top, int dir) +{ + if (!ehca_bmap_valid(ehca_bmap->top[top])) { + ehca_bmap->top[top] = + kmalloc(sizeof(struct ehca_top_bmap), GFP_KERNEL); + if (!ehca_bmap->top[top]) + return -ENOMEM; + /* Set map block to 0xFF according to EHCA_INVAL_ADDR */ + memset(ehca_bmap->top[top], 0xFF, EHCA_DIR_MAP_SIZE); + } + return ehca_init_top_bmap(ehca_bmap->top[top], dir); +} -/* - * map HIPZ rc to IB retcodes for MR register rpage - * Used for hipz_h_register_rpage_mr at registering one page, but not last page - */ -int ehca_mrmw_map_hrc_rrpg_notlast(const u64 hipz_rc) +static inline int ehca_calc_index(unsigned long i, unsigned long s) { - switch (hipz_rc) { - case H_PAGE_REGISTERED: /* page registered */ - return 0; - case H_SUCCESS: /* registration complete */ - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ -/* case H_QT_PARM: invalid queue type */ - case H_PARAMETER: /* - * invalid logical address, - * or count zero or greater 512 - */ - case H_TABLE_FULL: /* page table full */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; + return (i >> s) & EHCA_INDEX_MASK; +} + +void ehca_destroy_busmap(void) +{ + int top, dir; + + if (!ehca_bmap) + return; + + for (top = 0; top < EHCA_MAP_ENTRIES; top++) { + if (!ehca_bmap_valid(ehca_bmap->top[top])) + continue; + for (dir = 0; dir < EHCA_MAP_ENTRIES; dir++) { + if (!ehca_bmap_valid(ehca_bmap->top[top]->dir[dir])) + continue; + + kfree(ehca_bmap->top[top]->dir[dir]); + } + + kfree(ehca_bmap->top[top]); } -} /* end ehca_mrmw_map_hrc_rrpg_notlast() */ -/*----------------------------------------------------------------------*/ + kfree(ehca_bmap); + ehca_bmap = NULL; +} -/* map HIPZ rc to IB retcodes for MR query. Used for hipz_mr_query. */ -int ehca_mrmw_map_hrc_query_mr(const u64 hipz_rc) +static int ehca_update_busmap(unsigned long pfn, unsigned long nr_pages) { - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ + unsigned long i, start_section, end_section; + int top, dir, idx; + + if (!nr_pages) return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; + + if (!ehca_bmap) { + ehca_bmap = kmalloc(sizeof(struct ehca_bmap), GFP_KERNEL); + if (!ehca_bmap) + return -ENOMEM; + /* Set map block to 0xFF according to EHCA_INVAL_ADDR */ + memset(ehca_bmap, 0xFF, EHCA_TOP_MAP_SIZE); } -} /* end ehca_mrmw_map_hrc_query_mr() */ -/*----------------------------------------------------------------------*/ -/*----------------------------------------------------------------------*/ + start_section = (pfn * PAGE_SIZE) / EHCA_SECTSIZE; + end_section = ((pfn + nr_pages) * PAGE_SIZE) / EHCA_SECTSIZE; + for (i = start_section; i < end_section; i++) { + int ret; + top = ehca_calc_index(i, EHCA_TOP_INDEX_SHIFT); + dir = ehca_calc_index(i, EHCA_DIR_INDEX_SHIFT); + idx = i & EHCA_INDEX_MASK; -/* - * map HIPZ rc to IB retcodes for freeing MR resource - * Used for hipz_h_free_resource_mr - */ -int ehca_mrmw_map_hrc_free_mr(const u64 hipz_rc) + ret = ehca_init_bmap(ehca_bmap, top, dir); + if (ret) { + ehca_destroy_busmap(); + return ret; + } + ehca_bmap->top[top]->dir[dir]->ent[idx] = ehca_mr_len; + ehca_mr_len += EHCA_SECTSIZE; + } + return 0; +} + +static int ehca_is_hugepage(unsigned long pfn) { - switch (hipz_rc) { - case H_SUCCESS: /* resource freed */ + int page_order; + + if (pfn & EHCA_HUGEPAGE_PFN_MASK) return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_R_STATE: /* invalid resource state */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_RESOURCE: /* Resource in use */ - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; + + page_order = compound_order(pfn_to_page(pfn)); + if (page_order + PAGE_SHIFT != EHCA_HUGEPAGESHIFT) + return 0; + + return 1; +} + +static int ehca_create_busmap_callback(unsigned long initial_pfn, + unsigned long total_nr_pages, void *arg) +{ + int ret; + unsigned long pfn, start_pfn, end_pfn, nr_pages; + + if ((total_nr_pages * PAGE_SIZE) < EHCA_HUGEPAGE_SIZE) + return ehca_update_busmap(initial_pfn, total_nr_pages); + + /* Given chunk is >= 16GB -> check for hugepages */ + start_pfn = initial_pfn; + end_pfn = initial_pfn + total_nr_pages; + pfn = start_pfn; + + while (pfn < end_pfn) { + if (ehca_is_hugepage(pfn)) { + /* Add mem found in front of the hugepage */ + nr_pages = pfn - start_pfn; + ret = ehca_update_busmap(start_pfn, nr_pages); + if (ret) + return ret; + /* Skip the hugepage */ + pfn += (EHCA_HUGEPAGE_SIZE / PAGE_SIZE); + start_pfn = pfn; + } else + pfn += (EHCA_SECTSIZE / PAGE_SIZE); } -} /* end ehca_mrmw_map_hrc_free_mr() */ -/*----------------------------------------------------------------------*/ + /* Add mem found behind the hugepage(s) */ + nr_pages = pfn - start_pfn; + return ehca_update_busmap(start_pfn, nr_pages); +} -/* - * map HIPZ rc to IB retcodes for freeing MW resource - * Used for hipz_h_free_resource_mw - */ -int ehca_mrmw_map_hrc_free_mw(const u64 hipz_rc) +int ehca_create_busmap(void) { - switch (hipz_rc) { - case H_SUCCESS: /* resource freed */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_R_STATE: /* invalid resource state */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_RESOURCE: /* Resource in use */ - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; + int ret; + + ehca_mr_len = 0; + ret = walk_system_ram_range(0, 1ULL << MAX_PHYSMEM_BITS, NULL, + ehca_create_busmap_callback); + return ret; +} + +static int ehca_reg_bmap_mr_rpages(struct ehca_shca *shca, + struct ehca_mr *e_mr, + struct ehca_mr_pginfo *pginfo) +{ + int top; + u64 hret, *kpage; + + kpage = ehca_alloc_fw_ctrlblock(GFP_KERNEL); + if (!kpage) { + ehca_err(&shca->ib_device, "kpage alloc failed"); + return -ENOMEM; + } + for (top = 0; top < EHCA_MAP_ENTRIES; top++) { + if (!ehca_bmap_valid(ehca_bmap->top[top])) + continue; + hret = ehca_reg_mr_dir_sections(top, kpage, shca, e_mr, pginfo); + if ((hret != H_PAGE_REGISTERED) && (hret != H_SUCCESS)) + break; } -} /* end ehca_mrmw_map_hrc_free_mw() */ -/*----------------------------------------------------------------------*/ + ehca_free_fw_ctrlblock(kpage); -/* - * map HIPZ rc to IB retcodes for SMR registrations - * Used for hipz_h_register_smr. - */ -int ehca_mrmw_map_hrc_reg_smr(const u64 hipz_rc) + if (hret == H_SUCCESS) + return 0; /* Everything is fine */ + else { + ehca_err(&shca->ib_device, "ehca_reg_bmap_mr_rpages failed, " + "h_ret=%lli e_mr=%p top=%x lkey=%x " + "hca_hndl=%llx mr_hndl=%llx", hret, e_mr, top, + e_mr->ib.ib_mr.lkey, + shca->ipz_hca_handle.handle, + e_mr->ipz_mr_handle.handle); + return ehca2ib_return_code(hret); + } +} + +static u64 ehca_map_vaddr(void *caddr) { - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_MEM_PARM: /* invalid MR virtual address */ - case H_MEM_ACCESS_PARM: /* invalid access controls */ - case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; + int top, dir, idx; + unsigned long abs_addr, offset; + u64 entry; + + if (!ehca_bmap) + return EHCA_INVAL_ADDR; + + abs_addr = __pa(caddr); + top = ehca_calc_index(abs_addr, EHCA_TOP_INDEX_SHIFT + EHCA_SECTSHIFT); + if (!ehca_bmap_valid(ehca_bmap->top[top])) + return EHCA_INVAL_ADDR; + + dir = ehca_calc_index(abs_addr, EHCA_DIR_INDEX_SHIFT + EHCA_SECTSHIFT); + if (!ehca_bmap_valid(ehca_bmap->top[top]->dir[dir])) + return EHCA_INVAL_ADDR; + + idx = ehca_calc_index(abs_addr, EHCA_SECTSHIFT); + + entry = ehca_bmap->top[top]->dir[dir]->ent[idx]; + if (ehca_bmap_valid(entry)) { + offset = (unsigned long)caddr & (EHCA_SECTSIZE - 1); + return entry | offset; + } else + return EHCA_INVAL_ADDR; +} + +static int ehca_dma_mapping_error(struct ib_device *dev, u64 dma_addr) +{ + return dma_addr == EHCA_INVAL_ADDR; +} + +static u64 ehca_dma_map_single(struct ib_device *dev, void *cpu_addr, + size_t size, enum dma_data_direction direction) +{ + if (cpu_addr) + return ehca_map_vaddr(cpu_addr); + else + return EHCA_INVAL_ADDR; +} + +static void ehca_dma_unmap_single(struct ib_device *dev, u64 addr, size_t size, + enum dma_data_direction direction) +{ + /* This is only a stub; nothing to be done here */ +} + +static u64 ehca_dma_map_page(struct ib_device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction) +{ + u64 addr; + + if (offset + size > PAGE_SIZE) + return EHCA_INVAL_ADDR; + + addr = ehca_map_vaddr(page_address(page)); + if (!ehca_dma_mapping_error(dev, addr)) + addr += offset; + + return addr; +} + +static void ehca_dma_unmap_page(struct ib_device *dev, u64 addr, size_t size, + enum dma_data_direction direction) +{ + /* This is only a stub; nothing to be done here */ +} + +static int ehca_dma_map_sg(struct ib_device *dev, struct scatterlist *sgl, + int nents, enum dma_data_direction direction) +{ + struct scatterlist *sg; + int i; + + for_each_sg(sgl, sg, nents, i) { + u64 addr; + addr = ehca_map_vaddr(sg_virt(sg)); + if (ehca_dma_mapping_error(dev, addr)) + return 0; + + sg->dma_address = addr; + sg->dma_length = sg->length; } -} /* end ehca_mrmw_map_hrc_reg_smr() */ + return nents; +} -/*----------------------------------------------------------------------*/ +static void ehca_dma_unmap_sg(struct ib_device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) +{ + /* This is only a stub; nothing to be done here */ +} -/* - * MR destructor and constructor - * used in Reregister MR verb, sets all fields in ehca_mr_t to 0, - * except struct ib_mr and spinlock - */ -void ehca_mr_deletenew(struct ehca_mr *mr) +static void ehca_dma_sync_single_for_cpu(struct ib_device *dev, u64 addr, + size_t size, + enum dma_data_direction dir) { - mr->flags = 0; - mr->num_pages = 0; - mr->num_4k = 0; - mr->acl = 0; - mr->start = NULL; - mr->fmr_page_size = 0; - mr->fmr_max_pages = 0; - mr->fmr_max_maps = 0; - mr->fmr_map_cnt = 0; - memset(&mr->ipz_mr_handle, 0, sizeof(mr->ipz_mr_handle)); - memset(&mr->galpas, 0, sizeof(mr->galpas)); - mr->nr_of_pages = 0; - mr->pagearray = NULL; -} /* end ehca_mr_deletenew() */ + dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); +} -int ehca_init_mrmw_cache(void) +static void ehca_dma_sync_single_for_device(struct ib_device *dev, u64 addr, + size_t size, + enum dma_data_direction dir) { - mr_cache = kmem_cache_create("ehca_cache_mr", - sizeof(struct ehca_mr), 0, - SLAB_HWCACHE_ALIGN, - NULL, NULL); - if (!mr_cache) - return -ENOMEM; - mw_cache = kmem_cache_create("ehca_cache_mw", - sizeof(struct ehca_mw), 0, - SLAB_HWCACHE_ALIGN, - NULL, NULL); - if (!mw_cache) { - kmem_cache_destroy(mr_cache); - mr_cache = NULL; - return -ENOMEM; + dma_sync_single_for_device(dev->dma_device, addr, size, dir); +} + +static void *ehca_dma_alloc_coherent(struct ib_device *dev, size_t size, + u64 *dma_handle, gfp_t flag) +{ + struct page *p; + void *addr = NULL; + u64 dma_addr; + + p = alloc_pages(flag, get_order(size)); + if (p) { + addr = page_address(p); + dma_addr = ehca_map_vaddr(addr); + if (ehca_dma_mapping_error(dev, dma_addr)) { + free_pages((unsigned long)addr, get_order(size)); + return NULL; + } + if (dma_handle) + *dma_handle = dma_addr; + return addr; } - return 0; + return NULL; } -void ehca_cleanup_mrmw_cache(void) +static void ehca_dma_free_coherent(struct ib_device *dev, size_t size, + void *cpu_addr, u64 dma_handle) { - if (mr_cache) - kmem_cache_destroy(mr_cache); - if (mw_cache) - kmem_cache_destroy(mw_cache); + if (cpu_addr && size) + free_pages((unsigned long)cpu_addr, get_order(size)); } + + +struct ib_dma_mapping_ops ehca_dma_mapping_ops = { + .mapping_error = ehca_dma_mapping_error, + .map_single = ehca_dma_map_single, + .unmap_single = ehca_dma_unmap_single, + .map_page = ehca_dma_map_page, + .unmap_page = ehca_dma_unmap_page, + .map_sg = ehca_dma_map_sg, + .unmap_sg = ehca_dma_unmap_sg, + .sync_single_for_cpu = ehca_dma_sync_single_for_cpu, + .sync_single_for_device = ehca_dma_sync_single_for_device, + .alloc_coherent = ehca_dma_alloc_coherent, + .free_coherent = ehca_dma_free_coherent, +}; |