diff options
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_classes.h | 9 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_main.c | 18 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_mrmw.c | 371 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_mrmw.h | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ehca/hcp_if.c | 20 |
5 files changed, 357 insertions, 63 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h index 043e4fb23fb..63b8b9f7c4f 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -100,6 +100,11 @@ struct ehca_sport { struct ehca_sma_attr saved_attr; }; +#define HCA_CAP_MR_PGSIZE_4K 1 +#define HCA_CAP_MR_PGSIZE_64K 2 +#define HCA_CAP_MR_PGSIZE_1M 4 +#define HCA_CAP_MR_PGSIZE_16M 8 + struct ehca_shca { struct ib_device ib_device; struct ibmebus_dev *ibmebus_dev; @@ -115,6 +120,8 @@ struct ehca_shca { struct h_galpas galpas; struct mutex modify_mutex; u64 hca_cap; + /* MR pgsize: bit 0-3 means 4K, 64K, 1M, 16M respectively */ + u32 hca_cap_mr_pgsize; int max_mtu; }; @@ -206,6 +213,7 @@ struct ehca_mr { enum ehca_mr_flag flags; u32 num_kpages; /* number of kernel pages */ u32 num_hwpages; /* number of hw pages to form MR */ + u64 hwpage_size; /* hw page size used for this MR */ int acl; /* ACL (stored here for usage in reregister) */ u64 *start; /* virtual start address (stored here for */ /* usage in reregister) */ @@ -240,6 +248,7 @@ struct ehca_mr_pginfo { enum ehca_mr_pgi_type type; u64 num_kpages; u64 kpage_cnt; + u64 hwpage_size; /* hw page size used for this MR */ u64 num_hwpages; /* number of hw pages */ u64 hwpage_cnt; /* counter for hw pages */ u64 next_hwpage; /* next hw page in buffer/chunk/listelem */ diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c index 04c324330b7..ec014519222 100644 --- a/drivers/infiniband/hw/ehca/ehca_main.c +++ b/drivers/infiniband/hw/ehca/ehca_main.c @@ -63,6 +63,7 @@ int ehca_port_act_time = 30; int ehca_poll_all_eqs = 1; int ehca_static_rate = -1; int ehca_scaling_code = 0; +int ehca_mr_largepage = 0; module_param_named(open_aqp1, ehca_open_aqp1, int, 0); module_param_named(debug_level, ehca_debug_level, int, 0); @@ -72,7 +73,8 @@ module_param_named(use_hp_mr, ehca_use_hp_mr, int, 0); module_param_named(port_act_time, ehca_port_act_time, int, 0); module_param_named(poll_all_eqs, ehca_poll_all_eqs, int, 0); module_param_named(static_rate, ehca_static_rate, int, 0); -module_param_named(scaling_code, ehca_scaling_code, int, 0); +module_param_named(scaling_code, ehca_scaling_code, int, 0); +module_param_named(mr_largepage, ehca_mr_largepage, int, 0); MODULE_PARM_DESC(open_aqp1, "AQP1 on startup (0: no (default), 1: yes)"); @@ -95,6 +97,9 @@ MODULE_PARM_DESC(static_rate, "set permanent static rate (default: disabled)"); MODULE_PARM_DESC(scaling_code, "set scaling code (0: disabled/default, 1: enabled)"); +MODULE_PARM_DESC(mr_largepage, + "use large page for MR (0: use PAGE_SIZE (default), " + "1: use large page depending on MR size"); DEFINE_RWLOCK(ehca_qp_idr_lock); DEFINE_RWLOCK(ehca_cq_idr_lock); @@ -295,6 +300,8 @@ int ehca_sense_attributes(struct ehca_shca *shca) if (EHCA_BMASK_GET(hca_cap_descr[i].mask, shca->hca_cap)) ehca_gen_dbg(" %s", hca_cap_descr[i].descr); + shca->hca_cap_mr_pgsize = rblock->memory_page_size_supported; + port = (struct hipz_query_port *)rblock; h_ret = hipz_h_query_port(shca->ipz_hca_handle, 1, port); if (h_ret != H_SUCCESS) { @@ -590,6 +597,14 @@ static ssize_t ehca_show_adapter_handle(struct device *dev, } static DEVICE_ATTR(adapter_handle, S_IRUGO, ehca_show_adapter_handle, NULL); +static ssize_t ehca_show_mr_largepage(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%d\n", ehca_mr_largepage); +} +static DEVICE_ATTR(mr_largepage, S_IRUGO, ehca_show_mr_largepage, NULL); + static struct attribute *ehca_dev_attrs[] = { &dev_attr_adapter_handle.attr, &dev_attr_num_ports.attr, @@ -606,6 +621,7 @@ static struct attribute *ehca_dev_attrs[] = { &dev_attr_cur_mw.attr, &dev_attr_max_pd.attr, &dev_attr_max_ah.attr, + &dev_attr_mr_largepage.attr, NULL }; diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c index 9f4c9d46e8e..c1b868b79d6 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 * @@ -56,6 +57,37 @@ 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 +}; + +extern int ehca_mr_largepage; + +static u32 ehca_encode_hwpage_size(u32 pgsize) +{ + u32 idx = 0; + pgsize >>= 12; + /* + * map mr page size into hw code: + * 0, 1, 2, 3 for 4K, 64K, 1M, 64M + */ + while (!(pgsize & 1)) { + idx++; + pgsize >>= 4; + } + return idx; +} + +static u64 ehca_get_max_hwpage_size(struct ehca_shca *shca) +{ + if (shca->hca_cap_mr_pgsize & HCA_CAP_MR_PGSIZE_16M) + return EHCA_MR_PGSIZE16M; + return EHCA_MR_PGSIZE4K; +} + static struct ehca_mr *ehca_mr_new(void) { struct ehca_mr *me; @@ -207,19 +239,23 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, 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); - num_hwpages = NUM_CHUNKS(((u64)iova_start % EHCA_PAGESIZE) + - size, EHCA_PAGESIZE); + /* 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) / - EHCA_PAGESIZE); + pginfo.next_hwpage = + ((u64)iova_start & ~(hw_pgsize - 1)) / hw_pgsize; ret = ehca_reg_mr(shca, e_mr, iova_start, size, mr_access_flags, e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, @@ -259,6 +295,7 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, int ret; u32 num_kpages; u32 num_hwpages; + u64 hwpage_size; if (!pd) { ehca_gen_err("bad pd=%p", pd); @@ -309,16 +346,32 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, /* determine number of MR pages */ num_kpages = NUM_CHUNKS((virt % PAGE_SIZE) + length, PAGE_SIZE); - num_hwpages = NUM_CHUNKS((virt % EHCA_PAGESIZE) + length, - EHCA_PAGESIZE); + /* select proper hw_pgsize */ + if (ehca_mr_largepage && + (shca->hca_cap_mr_pgsize & HCA_CAP_MR_PGSIZE_16M)) { + if (length <= EHCA_MR_PGSIZE4K + && PAGE_SIZE == EHCA_MR_PGSIZE4K) + hwpage_size = EHCA_MR_PGSIZE4K; + else if (length <= EHCA_MR_PGSIZE64K) + hwpage_size = EHCA_MR_PGSIZE64K; + else if (length <= EHCA_MR_PGSIZE1M) + hwpage_size = EHCA_MR_PGSIZE1M; + else + hwpage_size = EHCA_MR_PGSIZE16M; + } else + hwpage_size = EHCA_MR_PGSIZE4K; + ehca_dbg(pd->device, "hwpage_size=%lx", hwpage_size); +reg_user_mr_fallback: + num_hwpages = NUM_CHUNKS((virt % hwpage_size) + length, hwpage_size); /* register MR on HCA */ 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 / EHCA_PAGESIZE; + pginfo.next_hwpage = e_mr->umem->offset / hwpage_size; pginfo.u.usr.next_chunk = list_prepare_entry(pginfo.u.usr.next_chunk, (&e_mr->umem->chunk_list), list); @@ -326,6 +379,18 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 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); + if (ret == -EINVAL && pginfo.hwpage_size > PAGE_SIZE) { + ehca_warn(pd->device, "failed to register mr " + "with hwpage_size=%lx", 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_exit2; @@ -452,6 +517,8 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, 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, @@ -468,16 +535,17 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, } num_kpages = NUM_CHUNKS(((u64)new_start % PAGE_SIZE) + new_size, PAGE_SIZE); - num_hwpages = NUM_CHUNKS(((u64)new_start % EHCA_PAGESIZE) + - new_size, EHCA_PAGESIZE); + 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) / - EHCA_PAGESIZE); + pginfo.next_hwpage = + ((u64)iova_start & ~(hw_pgsize - 1)) / hw_pgsize; } if (mr_rereg_mask & IB_MR_REREG_ACCESS) new_acl = mr_access_flags; @@ -709,6 +777,7 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, int ret; u32 tmp_lkey, tmp_rkey; struct ehca_mr_pginfo pginfo; + u64 hw_pgsize; /* check other parameters */ if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && @@ -738,8 +807,8 @@ 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 = ehca_get_max_hwpage_size(shca); + if ((1 << fmr_attr->page_shift) != hw_pgsize) { ehca_err(pd->device, "unsupported fmr_attr->page_shift=%x", fmr_attr->page_shift); ib_fmr = ERR_PTR(-EINVAL); @@ -755,6 +824,10 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, /* register MR on HCA */ memset(&pginfo, 0, sizeof(pginfo)); + /* + * 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, @@ -765,6 +838,7 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, } /* 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; @@ -822,10 +896,12 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, memset(&pginfo, 0, sizeof(pginfo)); pginfo.type = EHCA_MR_PGI_FMR; pginfo.num_kpages = list_len; - pginfo.num_hwpages = list_len * (e_fmr->fmr_page_size / EHCA_PAGESIZE); + 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)) / - EHCA_PAGESIZE); + 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, @@ -964,7 +1040,7 @@ int ehca_reg_mr(struct ehca_shca *shca, 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; @@ -987,6 +1063,7 @@ int ehca_reg_mr(struct ehca_shca *shca, /* successful registration */ 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; @@ -1029,6 +1106,9 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, u32 i; u64 *kpage; + 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"); @@ -1036,7 +1116,7 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, goto ehca_reg_mr_rpages_exit0; } - /* max 512 pages per shot */ + /* max MAX_RPAGES ehca mr pages per register call */ for (i = 0; i < NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES); i++) { if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { @@ -1049,8 +1129,8 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, ret = ehca_set_pagebuf(pginfo, rnum, kpage); if (ret) { ehca_err(&shca->ib_device, "ehca_set_pagebuf " - "bad rc, ret=%x rnum=%x kpage=%p", - ret, rnum, kpage); + "bad rc, ret=%x rnum=%x kpage=%p", + ret, rnum, kpage); goto ehca_reg_mr_rpages_exit1; } @@ -1065,9 +1145,10 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, } 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 == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { /* @@ -1131,7 +1212,7 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, 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 = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!kpage) { @@ -1182,6 +1263,7 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, */ 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; @@ -1268,13 +1350,14 @@ 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); if (ret) { u32 offset = (u64)(&e_mr->flags) - (u64)e_mr; memcpy(&e_mr->flags, &(save_mr.flags), @@ -1355,6 +1438,7 @@ int ehca_unmap_one_fmr(struct ehca_shca *shca, /* 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; @@ -1363,8 +1447,6 @@ int ehca_unmap_one_fmr(struct ehca_shca *shca, memset(&pginfo, 0, sizeof(pginfo)); pginfo.type = EHCA_MR_PGI_FMR; - pginfo.num_kpages = 0; - pginfo.num_hwpages = 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, @@ -1373,7 +1455,6 @@ int ehca_unmap_one_fmr(struct ehca_shca *shca, 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; } ehca_unmap_one_fmr_exit0: @@ -1401,7 +1482,7 @@ int ehca_reg_smr(struct ehca_shca *shca, 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, @@ -1420,6 +1501,7 @@ int ehca_reg_smr(struct ehca_shca *shca, /* successful registration */ 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; @@ -1452,6 +1534,7 @@ int ehca_reg_internal_maxmr( struct ib_phys_buf ib_pbuf; u32 num_kpages; u32 num_hwpages; + u64 hw_pgsize; e_mr = ehca_mr_new(); if (!e_mr) { @@ -1468,13 +1551,15 @@ int ehca_reg_internal_maxmr( ib_pbuf.size = size_maxmr; num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size_maxmr, PAGE_SIZE); - num_hwpages = NUM_CHUNKS(((u64)iova_start % EHCA_PAGESIZE) + size_maxmr, - EHCA_PAGESIZE); + 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; @@ -1523,7 +1608,7 @@ int ehca_reg_maxmr(struct ehca_shca *shca, 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, @@ -1539,6 +1624,7 @@ int ehca_reg_maxmr(struct ehca_shca *shca, /* successful registration */ 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; @@ -1684,6 +1770,7 @@ static int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, u64 pgaddr; u32 i = 0; u32 j = 0; + int hwpages_per_kpage = PAGE_SIZE / pginfo->hwpage_size; /* loop over desired chunk entries */ chunk = pginfo->u.usr.next_chunk; @@ -1695,7 +1782,7 @@ static int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, << PAGE_SHIFT ; *kpage = phys_to_abs(pgaddr + (pginfo->next_hwpage * - EHCA_PAGESIZE)); + pginfo->hwpage_size)); if ( !(*kpage) ) { ehca_gen_err("pgaddr=%lx " "chunk->page_list[i]=%lx " @@ -1708,8 +1795,7 @@ static int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, (pginfo->hwpage_cnt)++; (pginfo->next_hwpage)++; kpage++; - if (pginfo->next_hwpage % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) { + if (pginfo->next_hwpage % hwpages_per_kpage == 0) { (pginfo->kpage_cnt)++; (pginfo->u.usr.next_nmap)++; pginfo->next_hwpage = 0; @@ -1738,6 +1824,143 @@ static int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, 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 *page_list, + int start_idx, int end_idx, + u64 *prev_pgaddr) +{ + int t; + for (t = start_idx; t <= end_idx; t++) { + u64 pgaddr = page_to_pfn(page_list[t].page) << PAGE_SHIFT; + ehca_gen_dbg("chunk_page=%lx value=%016lx", pgaddr, + *(u64 *)abs_to_virt(phys_to_abs(pgaddr))); + if (pgaddr - PAGE_SIZE != *prev_pgaddr) { + ehca_gen_err("uncontiguous page found pgaddr=%lx " + "prev_pgaddr=%lx page_list_i=%x", + pgaddr, *prev_pgaddr, t); + 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; + struct ib_umem_chunk *prev_chunk; + struct ib_umem_chunk *chunk; + u64 pgaddr, prev_pgaddr; + u32 i = 0; + u32 j = 0; + int kpages_per_hwpage = pginfo->hwpage_size / PAGE_SIZE; + int nr_kpages = kpages_per_hwpage; + + /* loop over desired chunk entries */ + chunk = pginfo->u.usr.next_chunk; + prev_chunk = pginfo->u.usr.next_chunk; + list_for_each_entry_continue( + chunk, (&(pginfo->u.usr.region->chunk_list)), list) { + for (i = pginfo->u.usr.next_nmap; i < chunk->nmap; ) { + if (nr_kpages == kpages_per_hwpage) { + pgaddr = ( page_to_pfn(chunk->page_list[i].page) + << PAGE_SHIFT ); + *kpage = phys_to_abs(pgaddr); + if ( !(*kpage) ) { + ehca_gen_err("pgaddr=%lx i=%x", + pgaddr, i); + 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=%lx i=%x " + "mr_pgsize=%lx", + pgaddr, i, + pginfo->hwpage_size); + ret = -EFAULT; + return ret; + } + /* first MR page */ + pginfo->kpage_cnt = + (pgaddr & + (pginfo->hwpage_size - 1)) >> + PAGE_SHIFT; + nr_kpages -= pginfo->kpage_cnt; + *kpage = phys_to_abs( + pgaddr & + ~(pginfo->hwpage_size - 1)); + } + ehca_gen_dbg("kpage=%lx chunk_page=%lx " + "value=%016lx", *kpage, pgaddr, + *(u64 *)abs_to_virt( + phys_to_abs(pgaddr))); + prev_pgaddr = pgaddr; + i++; + pginfo->kpage_cnt++; + pginfo->u.usr.next_nmap++; + nr_kpages--; + if (!nr_kpages) + goto next_kpage; + continue; + } + if (i + nr_kpages > chunk->nmap) { + ret = ehca_check_kpages_per_ate( + chunk->page_list, i, + chunk->nmap - 1, &prev_pgaddr); + if (ret) return ret; + pginfo->kpage_cnt += chunk->nmap - i; + pginfo->u.usr.next_nmap += chunk->nmap - i; + nr_kpages -= chunk->nmap - i; + break; + } + + ret = ehca_check_kpages_per_ate(chunk->page_list, i, + i + nr_kpages - 1, + &prev_pgaddr); + if (ret) return ret; + i += nr_kpages; + 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; + } + if ((pginfo->u.usr.next_nmap >= chunk->nmap) && + (j >= number)) { + pginfo->u.usr.next_nmap = 0; + prev_chunk = chunk; + break; + } else if (pginfo->u.usr.next_nmap >= chunk->nmap) { + pginfo->u.usr.next_nmap = 0; + prev_chunk = chunk; + } else if (j >= number) + break; + else + prev_chunk = chunk; + } + pginfo->u.usr.next_chunk = + list_prepare_entry(prev_chunk, + (&(pginfo->u.usr.region->chunk_list)), + list); + return ret; +} + int ehca_set_pagebuf_phys(struct ehca_mr_pginfo *pginfo, u32 number, u64 *kpage) @@ -1750,9 +1973,10 @@ int ehca_set_pagebuf_phys(struct ehca_mr_pginfo *pginfo, /* 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 % EHCA_PAGESIZE) + - pbuf->size, EHCA_PAGESIZE); - offs_hw = (pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; + 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) || @@ -1768,21 +1992,23 @@ int ehca_set_pagebuf_phys(struct ehca_mr_pginfo *pginfo, return -EFAULT; } *kpage = phys_to_abs( - (pbuf->addr & EHCA_PAGEMASK) - + (pginfo->next_hwpage * EHCA_PAGESIZE)); + (pbuf->addr & ~(pginfo->hwpage_size - 1)) + + (pginfo->next_hwpage * pginfo->hwpage_size)); if ( !(*kpage) && pbuf->addr ) { - ehca_gen_err("pbuf->addr=%lx " - "pbuf->size=%lx " + ehca_gen_err("pbuf->addr=%lx pbuf->size=%lx " "next_hwpage=%lx", pbuf->addr, - pbuf->size, - pginfo->next_hwpage); + pbuf->size, pginfo->next_hwpage); return -EFAULT; } (pginfo->hwpage_cnt)++; (pginfo->next_hwpage)++; - if (pginfo->next_hwpage % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) - (pginfo->kpage_cnt)++; + 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++; i++; if (i >= number) break; @@ -1806,8 +2032,8 @@ int ehca_set_pagebuf_fmr(struct ehca_mr_pginfo *pginfo, /* loop over desired page_list entries */ fmrlist = pginfo->u.fmr.page_list + pginfo->u.fmr.next_listelem; for (i = 0; i < number; i++) { - *kpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + - pginfo->next_hwpage * EHCA_PAGESIZE); + *kpage = phys_to_abs((*fmrlist & ~(pginfo->hwpage_size - 1)) + + pginfo->next_hwpage * pginfo->hwpage_size); if ( !(*kpage) ) { ehca_gen_err("*fmrlist=%lx fmrlist=%p " "next_listelem=%lx next_hwpage=%lx", @@ -1817,15 +2043,38 @@ int ehca_set_pagebuf_fmr(struct ehca_mr_pginfo *pginfo, return -EFAULT; } (pginfo->hwpage_cnt)++; - (pginfo->next_hwpage)++; - kpage++; - if (pginfo->next_hwpage % - (pginfo->u.fmr.fmr_pgsize / EHCA_PAGESIZE) == 0) { - (pginfo->kpage_cnt)++; - (pginfo->u.fmr.next_listelem)++; - fmrlist++; - pginfo->next_hwpage = 0; + 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 = phys_to_abs(fmrlist[j] & + ~(pginfo->hwpage_size - 1)); + if (prev + pginfo->u.fmr.fmr_pgsize != p) { + ehca_gen_err("uncontiguous fmr pages " + "found prev=%lx p=%lx " + "idx=%x", prev, p, i + j); + return -EINVAL; + } + prev = p; + } + pginfo->kpage_cnt += cnt_per_hwpage; + pginfo->u.fmr.next_listelem += cnt_per_hwpage; + fmrlist += cnt_per_hwpage; } + kpage++; } return ret; } @@ -1842,7 +2091,9 @@ int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo, ret = ehca_set_pagebuf_phys(pginfo, number, kpage); break; case EHCA_MR_PGI_USER: - ret = ehca_set_pagebuf_user1(pginfo, number, kpage); + 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); @@ -1895,9 +2146,9 @@ 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() */ /*----------------------------------------------------------------------*/ diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.h b/drivers/infiniband/hw/ehca/ehca_mrmw.h index 24f13fe3708..bc8f4e31c12 100644 --- a/drivers/infiniband/hw/ehca/ehca_mrmw.h +++ b/drivers/infiniband/hw/ehca/ehca_mrmw.h @@ -111,7 +111,7 @@ int ehca_mr_is_maxmr(u64 size, void ehca_mrmw_map_acl(int ib_acl, u32 *hipz_acl); -void ehca_mrmw_set_pgsize_hipz_acl(u32 *hipz_acl); +void ehca_mrmw_set_pgsize_hipz_acl(u32 pgsize, u32 *hipz_acl); void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, int *ib_acl); diff --git a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/infiniband/hw/ehca/hcp_if.c index 3394e05f4b4..358796ccf00 100644 --- a/drivers/infiniband/hw/ehca/hcp_if.c +++ b/drivers/infiniband/hw/ehca/hcp_if.c @@ -427,7 +427,8 @@ u64 hipz_h_register_rpage(const struct ipz_adapter_handle adapter_handle, { return ehca_plpar_hcall_norets(H_REGISTER_RPAGES, adapter_handle.handle, /* r4 */ - queue_type | pagesize << 8, /* r5 */ + (u64)queue_type | ((u64)pagesize) << 8, + /* r5 */ resource_handle, /* r6 */ logical_address_of_page, /* r7 */ count, /* r8 */ @@ -724,6 +725,9 @@ u64 hipz_h_alloc_resource_mr(const struct ipz_adapter_handle adapter_handle, u64 ret; u64 outs[PLPAR_HCALL9_BUFSIZE]; + ehca_gen_dbg("kernel PAGE_SIZE=%x access_ctrl=%016x " + "vaddr=%lx length=%lx", + (u32)PAGE_SIZE, access_ctrl, vaddr, length); ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs, adapter_handle.handle, /* r4 */ 5, /* r5 */ @@ -746,8 +750,22 @@ u64 hipz_h_register_rpage_mr(const struct ipz_adapter_handle adapter_handle, const u64 logical_address_of_page, const u64 count) { + extern int ehca_debug_level; u64 ret; + if (unlikely(ehca_debug_level >= 2)) { + if (count > 1) { + u64 *kpage; + int i; + kpage = (u64 *)abs_to_virt(logical_address_of_page); + for (i = 0; i < count; i++) + ehca_gen_dbg("kpage[%d]=%p", + i, (void *)kpage[i]); + } else + ehca_gen_dbg("kpage=%p", + (void *)logical_address_of_page); + } + if ((count > 1) && (logical_address_of_page & (EHCA_PAGESIZE-1))) { ehca_gen_err("logical_address_of_page not on a 4k boundary " "adapter_handle=%lx mr=%p mr_handle=%lx " |