// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2018-2022 Marvell International Ltd. * * Support library for the hardware Free Pool Allocator. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static const int debug; /* Due to suspected errata, we may not be able to let the FPA_AURAX_CNT * get too close to 0, to avoid a spurious wrap-around error */ const unsigned int __cvmx_fpa3_cnt_offset = 32; /* For advanced checks, a guard-band is created around the internal * stack, to make sure the stack is not overwritten. */ const u64 magic_pattern = 0xbab4faced095f00d; const unsigned int guard_band_size = 0 << 10; /* 1KiB default*/ #define CVMX_CACHE_LINE_SHIFT (7) #define CVMX_FPA3_NAME_LEN (16) typedef struct { char name[CVMX_FPA3_NAME_LEN]; u64 stack_paddr; /* Internal stack storage */ u64 bufs_paddr; /* Buffer pool base address */ u64 stack_psize; /* Internal stack storage size */ u64 bufs_psize; /* Buffer pool raw size */ u64 buf_count; /* Number of buffer filled */ u64 buf_size; /* Buffer size */ } cvmx_fpa3_poolx_info_t; typedef struct { char name[CVMX_FPA3_NAME_LEN]; unsigned int buf_size; /* Buffer size */ } cvmx_fpa3_aurax_info_t; typedef struct { char name[CVMX_FPA1_NAME_SIZE]; u64 size; /* Block size of pool buffers */ u64 buffer_count; u64 base_paddr; /* Base physical addr */ /* if buffer is allocated at initialization */ } cvmx_fpa1_pool_info_t; /** * FPA1/FPA3 info structure is stored in a named block * that is allocated once and shared among applications. */ static cvmx_fpa1_pool_info_t *cvmx_fpa1_pool_info; static cvmx_fpa3_poolx_info_t *cvmx_fpa3_pool_info[CVMX_MAX_NODES]; static cvmx_fpa3_aurax_info_t *cvmx_fpa3_aura_info[CVMX_MAX_NODES]; /** * Return the size of buffers held in a POOL * * @param pool is the POOL handle * @return buffer size in bytes * */ int cvmx_fpa3_get_pool_buf_size(cvmx_fpa3_pool_t pool) { cvmx_fpa_poolx_cfg_t pool_cfg; if (!__cvmx_fpa3_pool_valid(pool)) return -1; pool_cfg.u64 = csr_rd_node(pool.node, CVMX_FPA_POOLX_CFG(pool.lpool)); return pool_cfg.cn78xx.buf_size << CVMX_CACHE_LINE_SHIFT; } /** * Return the size of buffers held in a buffer pool * * @param pool is the pool number * * This function will work with CN78XX models in backward-compatible mode */ unsigned int cvmx_fpa_get_block_size(int pool) { if (octeon_has_feature(OCTEON_FEATURE_FPA3)) { return cvmx_fpa3_get_pool_buf_size(cvmx_fpa3_aura_to_pool( cvmx_fpa1_pool_to_fpa3_aura(pool))); } else { if ((unsigned int)pool >= CVMX_FPA1_NUM_POOLS) return 0; if (!cvmx_fpa1_pool_info) cvmx_fpa_global_init_node(0); return cvmx_fpa1_pool_info[pool].size; } } static void cvmx_fpa3_set_aura_name(cvmx_fpa3_gaura_t aura, const char *name) { cvmx_fpa3_aurax_info_t *pinfo; pinfo = cvmx_fpa3_aura_info[aura.node]; if (!pinfo) return; pinfo += aura.laura; memset(pinfo->name, 0, sizeof(pinfo->name)); if (name) strlcpy(pinfo->name, name, sizeof(pinfo->name)); } static void cvmx_fpa3_set_pool_name(cvmx_fpa3_pool_t pool, const char *name) { cvmx_fpa3_poolx_info_t *pinfo; pinfo = cvmx_fpa3_pool_info[pool.node]; if (!pinfo) return; pinfo += pool.lpool; memset(pinfo->name, 0, sizeof(pinfo->name)); if (name) strlcpy(pinfo->name, name, sizeof(pinfo->name)); } static void cvmx_fpa_set_name(int pool_num, const char *name) { if (octeon_has_feature(OCTEON_FEATURE_FPA3)) { cvmx_fpa3_set_aura_name(cvmx_fpa1_pool_to_fpa3_aura(pool_num), name); } else { cvmx_fpa1_pool_info_t *pinfo; if ((unsigned int)pool_num >= CVMX_FPA1_NUM_POOLS) return; if (!cvmx_fpa1_pool_info) cvmx_fpa_global_init_node(0); pinfo = &cvmx_fpa1_pool_info[pool_num]; memset(pinfo->name, 0, sizeof(pinfo->name)); if (name) strlcpy(pinfo->name, name, sizeof(pinfo->name)); } } static int cvmx_fpa3_aura_cfg(cvmx_fpa3_gaura_t aura, cvmx_fpa3_pool_t pool, u64 limit, u64 threshold, int ptr_dis) { cvmx_fpa3_aurax_info_t *pinfo; cvmx_fpa_aurax_cfg_t aura_cfg; cvmx_fpa_poolx_cfg_t pool_cfg; cvmx_fpa_aurax_cnt_t cnt_reg; cvmx_fpa_aurax_cnt_limit_t limit_reg; cvmx_fpa_aurax_cnt_threshold_t thresh_reg; cvmx_fpa_aurax_int_t int_reg; unsigned int block_size; if (debug) debug("%s: AURA %u:%u POOL %u:%u\n", __func__, aura.node, aura.laura, pool.node, pool.lpool); if (aura.node != pool.node) { printf("ERROR: %s: AURA/POOL node mismatch\n", __func__); return -1; } if (!__cvmx_fpa3_aura_valid(aura)) { printf("ERROR: %s: AURA invalid\n", __func__); return -1; } if (!__cvmx_fpa3_pool_valid(pool)) { printf("ERROR: %s: POOL invalid\n", __func__); return -1; } /* Record POOL block size in AURA info entry */ pool_cfg.u64 = csr_rd_node(pool.node, CVMX_FPA_POOLX_CFG(pool.lpool)); block_size = pool_cfg.cn78xx.buf_size << 7; pinfo = cvmx_fpa3_aura_info[aura.node]; if (!pinfo) return -1; pinfo += aura.laura; pinfo->buf_size = block_size; /* block_size should be >0 except for POOL=0 which is never enabled*/ if (pool_cfg.cn78xx.ena && block_size == 0) { printf("ERROR; %s: POOL buf_size invalid\n", __func__); return -1; } /* Initialize AURA count, limit and threshold registers */ cnt_reg.u64 = 0; cnt_reg.cn78xx.cnt = 0 + __cvmx_fpa3_cnt_offset; limit_reg.u64 = 0; limit_reg.cn78xx.limit = limit; /* Apply count offset, unless it cases a wrap-around */ if ((limit + __cvmx_fpa3_cnt_offset) < CVMX_FPA3_AURAX_LIMIT_MAX) limit_reg.cn78xx.limit += __cvmx_fpa3_cnt_offset; thresh_reg.u64 = 0; thresh_reg.cn78xx.thresh = threshold; /* Apply count offset, unless it cases a wrap-around */ if ((threshold + __cvmx_fpa3_cnt_offset) < CVMX_FPA3_AURAX_LIMIT_MAX) thresh_reg.cn78xx.thresh += __cvmx_fpa3_cnt_offset; csr_wr_node(aura.node, CVMX_FPA_AURAX_CNT(aura.laura), cnt_reg.u64); csr_wr_node(aura.node, CVMX_FPA_AURAX_CNT_LIMIT(aura.laura), limit_reg.u64); csr_wr_node(aura.node, CVMX_FPA_AURAX_CNT_THRESHOLD(aura.laura), thresh_reg.u64); /* Clear any pending error interrupts */ int_reg.u64 = 0; int_reg.cn78xx.thresh = 1; /* Follow a write to clear FPA_AURAX_INT[THRESH] with a read as * a workaround to Errata FPA-23410. If FPA_AURAX_INT[THRESH] * isn't clear, try again. */ do { csr_wr_node(aura.node, CVMX_FPA_AURAX_INT(aura.laura), int_reg.u64); int_reg.u64 = csr_rd_node(aura.node, CVMX_FPA_AURAX_INT(aura.laura)); } while (int_reg.s.thresh); /* Disable backpressure etc.*/ csr_wr_node(aura.node, CVMX_FPA_AURAX_CNT_LEVELS(aura.laura), 0); csr_wr_node(aura.node, CVMX_FPA_AURAX_POOL_LEVELS(aura.laura), 0); aura_cfg.u64 = 0; aura_cfg.s.ptr_dis = ptr_dis; csr_wr_node(aura.node, CVMX_FPA_AURAX_CFG(aura.laura), aura_cfg.u64); csr_wr_node(aura.node, CVMX_FPA_AURAX_POOL(aura.laura), pool.lpool); return 0; } /** * @INTERNAL * * Fill a newly created FPA3 POOL with buffers * using a temporary AURA. */ static int cvmx_fpa3_pool_populate(cvmx_fpa3_pool_t pool, unsigned int buf_cnt, unsigned int buf_sz, void *mem_ptr, unsigned int mem_node) { cvmx_fpa3_poolx_info_t *pinfo; cvmx_fpa3_gaura_t aura; cvmx_fpa3_pool_t zero_pool; cvmx_fpa_poolx_cfg_t pool_cfg; cvmx_fpa_poolx_start_addr_t pool_start_reg; cvmx_fpa_poolx_end_addr_t pool_end_reg; cvmx_fpa_poolx_available_t avail_reg; cvmx_fpa_poolx_threshold_t thresh_reg; cvmx_fpa_poolx_int_t int_reg; unsigned int block_size, align; unsigned long long mem_size; u64 paddr; unsigned int i; if (debug) debug("%s: POOL %u:%u buf_sz=%u count=%d\n", __func__, pool.node, pool.lpool, buf_sz, buf_cnt); if (!__cvmx_fpa3_pool_valid(pool)) return -1; zero_pool = __cvmx_fpa3_pool(pool.node, 0); pool_cfg.u64 = csr_rd_node(pool.node, CVMX_FPA_POOLX_CFG(pool.lpool)); block_size = pool_cfg.cn78xx.buf_size << 7; if (pool_cfg.cn78xx.nat_align) { /* Assure block_size is legit */ if (block_size > (1 << 17)) { printf("ERROR: %s: POOL %u:%u block size %u is not valid\n", __func__, pool.node, pool.lpool, block_size); return -1; } } align = CVMX_CACHE_LINE_SIZE; pinfo = cvmx_fpa3_pool_info[pool.node]; if (!pinfo) return -1; pinfo += pool.lpool; if (pinfo->buf_size != block_size || block_size != buf_sz) { printf("ERROR: %s: POOL %u:%u buffer size mismatch\n", __func__, pool.node, pool.lpool); return -1; } if (!mem_ptr) { /* When allocating our own memory * make sure at least 'buf_cnt' blocks * will fit into it. */ mem_size = (long long)buf_cnt * block_size + (block_size - 128); mem_ptr = cvmx_helper_mem_alloc(mem_node, mem_size, align); if (!mem_ptr) { printf("ERROR: %s: POOL %u:%u out of memory, could not allocate %llu bytes\n", __func__, pool.node, pool.lpool, mem_size); return -1; } /* Record memory base for use in shutdown */ pinfo->bufs_paddr = cvmx_ptr_to_phys(mem_ptr); } else { /* caller-allocated memory is sized simply, may reduce count */ mem_size = (long long)buf_cnt * block_size; /* caller responsable to free this memory too */ } /* Recalculate buf_cnt after possible alignment adjustment */ buf_cnt = mem_size / block_size; /* Get temporary AURA */ aura = cvmx_fpa3_reserve_aura(pool.node, -1); if (!__cvmx_fpa3_aura_valid(aura)) return -1; /* Attach the temporary AURA to the POOL */ (void)cvmx_fpa3_aura_cfg(aura, pool, buf_cnt, buf_cnt + 1, 0); /* Set AURA count to buffer count to avoid wrap-around */ csr_wr_node(aura.node, CVMX_FPA_AURAX_CNT(aura.laura), buf_cnt); /* Set POOL threshold just above buf count so it does not misfire */ thresh_reg.u64 = 0; thresh_reg.cn78xx.thresh = buf_cnt + 1; csr_wr_node(pool.node, CVMX_FPA_POOLX_THRESHOLD(pool.lpool), thresh_reg.u64); /* Set buffer memory region bounds checking */ paddr = (cvmx_ptr_to_phys(mem_ptr) >> 7) << 7; pool_start_reg.u64 = 0; pool_end_reg.u64 = 0; pool_start_reg.cn78xx.addr = paddr >> 7; pool_end_reg.cn78xx.addr = (paddr + mem_size + 127) >> 7; csr_wr_node(pool.node, CVMX_FPA_POOLX_START_ADDR(pool.lpool), pool_start_reg.u64); csr_wr_node(pool.node, CVMX_FPA_POOLX_END_ADDR(pool.lpool), pool_end_reg.u64); /* Make sure 'paddr' is divisible by 'block_size' */ i = (paddr % block_size); if (i > 0) { i = block_size - i; paddr += i; mem_size -= i; } /* The above alignment mimics how the FPA3 hardware * aligns pointers to the buffer size, which only * needs to be multiple of cache line size */ if (debug && paddr != cvmx_ptr_to_phys(mem_ptr)) debug("%s: pool mem paddr %#llx adjusted to %#llx for block size %#x\n", __func__, CAST_ULL(cvmx_ptr_to_phys(mem_ptr)), CAST_ULL(paddr), block_size); for (i = 0; i < buf_cnt; i++) { void *ptr = cvmx_phys_to_ptr(paddr); cvmx_fpa3_free_nosync(ptr, aura, 0); paddr += block_size; if ((paddr + block_size - 1) >= (paddr + mem_size)) break; } if (debug && i < buf_cnt) { debug("%s: buffer count reduced from %u to %u\n", __func__, buf_cnt, i); buf_cnt = i; } /* Wait for all buffers to reach the POOL before removing temp AURA */ do { CVMX_SYNC; avail_reg.u64 = csr_rd_node( pool.node, CVMX_FPA_POOLX_AVAILABLE(pool.lpool)); } while (avail_reg.cn78xx.count < buf_cnt); /* Detach the temporary AURA */ (void)cvmx_fpa3_aura_cfg(aura, zero_pool, 0, 0, 0); /* Release temporary AURA */ (void)cvmx_fpa3_release_aura(aura); /* Clear all POOL interrupts */ int_reg.u64 = 0; int_reg.cn78xx.ovfls = 1; int_reg.cn78xx.crcerr = 1; int_reg.cn78xx.range = 1; int_reg.cn78xx.thresh = 1; csr_wr_node(pool.node, CVMX_FPA_POOLX_INT(pool.lpool), int_reg.u64); /* Record buffer count for shutdown */ pinfo->buf_count = buf_cnt; return buf_cnt; } /** * @INTERNAL * * Fill a legacy FPA pool with buffers */ static int cvmx_fpa1_fill_pool(cvmx_fpa1_pool_t pool, int num_blocks, void *buffer) { cvmx_fpa_poolx_start_addr_t pool_start_reg; cvmx_fpa_poolx_end_addr_t pool_end_reg; unsigned int block_size = cvmx_fpa_get_block_size(pool); unsigned int mem_size; char *bufp; if ((unsigned int)pool >= CVMX_FPA1_NUM_POOLS) return -1; mem_size = block_size * num_blocks; if (!buffer) { buffer = cvmx_helper_mem_alloc(0, mem_size, CVMX_CACHE_LINE_SIZE); cvmx_fpa1_pool_info[pool].base_paddr = cvmx_ptr_to_phys(buffer); } else { /* Align user-supplied buffer to cache line size */ unsigned int off = (CVMX_CACHE_LINE_SIZE - 1) & cvmx_ptr_to_phys(buffer); if (off > 0) { // buffer += CVMX_CACHE_LINE_SIZE - off; buffer = (char *)buffer + CVMX_CACHE_LINE_SIZE - off; mem_size -= CVMX_CACHE_LINE_SIZE - off; num_blocks = mem_size / block_size; } } if (debug) debug("%s: memory at %p size %#x\n", __func__, buffer, mem_size); pool_start_reg.u64 = 0; pool_end_reg.u64 = 0; /* buffer pointer range checks are highly recommended, but optional */ pool_start_reg.cn61xx.addr = 1; /* catch NULL pointers */ pool_end_reg.cn61xx.addr = (1ull << (40 - 7)) - 1; /* max paddr */ if (!OCTEON_IS_MODEL(OCTEON_CN63XX)) { csr_wr(CVMX_FPA_POOLX_START_ADDR(pool), pool_start_reg.u64); csr_wr(CVMX_FPA_POOLX_END_ADDR(pool), pool_end_reg.u64); } bufp = (char *)buffer; while (num_blocks--) { cvmx_fpa1_free(bufp, pool, 0); cvmx_fpa1_pool_info[pool].buffer_count++; bufp += block_size; } return 0; } /** * @INTERNAL * * Setup a legacy FPA pool */ static int cvmx_fpa1_pool_init(cvmx_fpa1_pool_t pool_id, int num_blocks, int block_size, void *buffer) { int max_pool = cvmx_fpa_get_max_pools(); if (pool_id < 0 || pool_id >= max_pool) { printf("ERROR: %s pool %d invalid\n", __func__, pool_id); return -1; } if (!cvmx_fpa1_pool_info) cvmx_fpa_global_init_node(0); if (debug) debug("%s: initializing info pool %d\n", __func__, pool_id); cvmx_fpa1_pool_info[pool_id].size = block_size; cvmx_fpa1_pool_info[pool_id].buffer_count = 0; if (debug) debug("%s: enabling unit for pool %d\n", __func__, pool_id); return 0; } /** * Initialize global configuration for FPA block for specified node. * * @param node is the node number * * @note this function sets the initial QoS averaging timing parameters, * for the entire FPA unit (per node), which may be overridden on a * per AURA basis. */ int cvmx_fpa_global_init_node(int node) { /* There are just the initial parameter values */ #define FPA_RED_AVG_DLY 1 #define FPA_RED_LVL_DLY 3 #define FPA_QOS_AVRG 0 /* Setting up avg_dly and prb_dly, enable bits */ if (octeon_has_feature(OCTEON_FEATURE_FPA3)) { char pool_info_name[32] = "cvmx_fpa3_pools_"; char aura_info_name[32] = "cvmx_fpa3_auras_"; char ns[2] = "0"; ns[0] += node; strcat(pool_info_name, ns); strcat(aura_info_name, ns); cvmx_fpa3_config_red_params(node, FPA_QOS_AVRG, FPA_RED_LVL_DLY, FPA_RED_AVG_DLY); /* Allocate the pinfo named block */ cvmx_fpa3_pool_info[node] = (cvmx_fpa3_poolx_info_t *) cvmx_bootmem_alloc_named_range_once( sizeof(cvmx_fpa3_pool_info[0][0]) * cvmx_fpa3_num_pools(), 0, 0, 0, pool_info_name, NULL); cvmx_fpa3_aura_info[node] = (cvmx_fpa3_aurax_info_t *) cvmx_bootmem_alloc_named_range_once( sizeof(cvmx_fpa3_aura_info[0][0]) * cvmx_fpa3_num_auras(), 0, 0, 0, aura_info_name, NULL); //XXX add allocation error check /* Setup zero_pool on this node */ cvmx_fpa3_reserve_pool(node, 0); cvmx_fpa3_pool_info[node][0].buf_count = 0; } else { char pool_info_name[32] = "cvmx_fpa_pool"; /* Allocate the pinfo named block */ cvmx_fpa1_pool_info = (cvmx_fpa1_pool_info_t *) cvmx_bootmem_alloc_named_range_once( sizeof(cvmx_fpa1_pool_info[0]) * CVMX_FPA1_NUM_POOLS, 0, 0, 0, pool_info_name, NULL); cvmx_fpa1_enable(); } return 0; } static void __memset_u64(u64 *ptr, u64 pattern, unsigned int words) { while (words--) *ptr++ = pattern; } /** * @INTERNAL * Initialize pool pointer-storage memory * * Unlike legacy FPA, which used free buffers to store pointers that * exceed on-chip memory, FPA3 requires a dedicated memory buffer for * free pointer stack back-store. * * @param pool - pool to initialize * @param mem_node - if memory should be allocated from a different node * @param max_buffer_cnt - maximum block capacity of pool * @param align - buffer alignment mode, * current FPA_NATURAL_ALIGNMENT is supported * @param buffer_sz - size of buffers in pool */ static int cvmx_fpa3_pool_stack_init(cvmx_fpa3_pool_t pool, unsigned int mem_node, unsigned int max_buffer_cnt, enum cvmx_fpa3_pool_alignment_e align, unsigned int buffer_sz) { cvmx_fpa3_poolx_info_t *pinfo; u64 stack_paddr; void *mem_ptr; unsigned int stack_memory_size; cvmx_fpa_poolx_cfg_t pool_cfg; cvmx_fpa_poolx_fpf_marks_t pool_fpf_marks; if (debug) debug("%s: POOL %u:%u bufsz=%u maxbuf=%u\n", __func__, pool.node, pool.lpool, buffer_sz, max_buffer_cnt); if (!__cvmx_fpa3_pool_valid(pool)) { printf("ERROR: %s: POOL invalid\n", __func__); return -1; } pinfo = cvmx_fpa3_pool_info[pool.node]; if (!pinfo) { printf("ERROR: %s: FPA on node#%u is not initialized\n", __func__, pool.node); return -1; } pinfo += pool.lpool; /* Calculate stack size based on buffer count with one line to spare */ stack_memory_size = (max_buffer_cnt * 128) / 29 + 128 + 127; /* Increase stack size by band guard */ stack_memory_size += guard_band_size << 1; /* Align size to cache line */ stack_memory_size = (stack_memory_size >> 7) << 7; /* Allocate internal stack */ mem_ptr = cvmx_helper_mem_alloc(mem_node, stack_memory_size, CVMX_CACHE_LINE_SIZE); if (debug) debug("%s: stack_mem=%u ptr=%p\n", __func__, stack_memory_size, mem_ptr); if (!mem_ptr) { debug("ERROR: %sFailed to allocate stack for POOL %u:%u\n", __func__, pool.node, pool.lpool); return -1; } /* Initialize guard bands */ if (guard_band_size > 0) { __memset_u64((u64 *)mem_ptr, magic_pattern, guard_band_size >> 3); __memset_u64((u64 *)((char *)mem_ptr + stack_memory_size - guard_band_size), magic_pattern, guard_band_size >> 3); } pinfo->stack_paddr = cvmx_ptr_to_phys(mem_ptr); pinfo->stack_psize = stack_memory_size; /* Calculate usable stack start */ stack_paddr = cvmx_ptr_to_phys((char *)mem_ptr + guard_band_size); csr_wr_node(pool.node, CVMX_FPA_POOLX_STACK_BASE(pool.lpool), stack_paddr); csr_wr_node(pool.node, CVMX_FPA_POOLX_STACK_ADDR(pool.lpool), stack_paddr); /* Calculate usable stack end - start of last cache line */ stack_paddr = stack_paddr + stack_memory_size - (guard_band_size << 1); csr_wr_node(pool.node, CVMX_FPA_POOLX_STACK_END(pool.lpool), stack_paddr); if (debug) debug("%s: Stack paddr %#llx - %#llx\n", __func__, CAST_ULL(csr_rd_node(pool.node, CVMX_FPA_POOLX_STACK_BASE( pool.lpool))), CAST_ULL(csr_rd_node(pool.node, CVMX_FPA_POOLX_STACK_END( pool.lpool)))); /* Setup buffer size for this pool until it is shutdown */ pinfo->buf_size = buffer_sz; pool_cfg.u64 = 0; pool_cfg.cn78xx.buf_size = buffer_sz >> 7; pool_cfg.cn78xx.l_type = 0x2; pool_cfg.cn78xx.ena = 0; if (align == FPA_NATURAL_ALIGNMENT) pool_cfg.cn78xx.nat_align = 1; /* FPA-26117, FPA-22443 */ pool_fpf_marks.u64 = csr_rd_node(pool.node, CVMX_FPA_POOLX_FPF_MARKS(pool.lpool)); pool_fpf_marks.s.fpf_rd = 0x80; csr_wr_node(pool.node, CVMX_FPA_POOLX_FPF_MARKS(pool.lpool), pool_fpf_marks.u64); csr_wr_node(pool.node, CVMX_FPA_POOLX_CFG(pool.lpool), pool_cfg.u64); pool_cfg.cn78xx.ena = 1; csr_wr_node(pool.node, CVMX_FPA_POOLX_CFG(pool.lpool), pool_cfg.u64); /* Pool is now ready to be filled up */ return 0; } /** * Create an FPA POOL and fill it up with buffers * * @param node is the node number for the pool and memory location * @param desired_pool is the local pool number desired * or -1 for first available * @param name is the symbolic name to assign the POOL * @param block_size is the size of all buffers held in this POOL * @param num_blocks is the number of free buffers to fill into the POOL * @param buffer is an optionally caller-supplied memory for the buffers * or NULL to cause the buffer memory to be allocated automatically. * @return the POOL handle * * Note: if the buffer memory is supplied by caller, the application * will be responsable to free this memory. * * Only supported on CN78XX. */ cvmx_fpa3_pool_t cvmx_fpa3_setup_fill_pool(int node, int desired_pool, const char *name, unsigned int block_size, unsigned int num_blocks, void *buffer) { cvmx_fpa3_pool_t pool; unsigned int mem_node; int rc; if (node < 0) node = cvmx_get_node_num(); if (debug) debug("%s: desired pool=%d bufsize=%u cnt=%u '%s'\n", __func__, desired_pool, block_size, num_blocks, name); /* Use memory from the node local to the AURA/POOL */ mem_node = node; if (num_blocks == 0 || num_blocks > 1 << 30) { printf("ERROR: %s: invalid block count %u\n", __func__, num_blocks); return CVMX_FPA3_INVALID_POOL; } /* * Check for block size validity: * With user-supplied buffer, can't increase block size, * so make sure it is at least 128, and is aligned to 128 * For all cases make sure it is not too big */ if ((buffer && (block_size < CVMX_CACHE_LINE_SIZE || (block_size & (CVMX_CACHE_LINE_SIZE - 1)))) || (block_size > (1 << 17))) { printf("ERROR: %s: invalid block size %u\n", __func__, block_size); return CVMX_FPA3_INVALID_POOL; } if (block_size < CVMX_CACHE_LINE_SIZE) block_size = CVMX_CACHE_LINE_SIZE; /* Reserve POOL */ pool = cvmx_fpa3_reserve_pool(node, desired_pool); if (!__cvmx_fpa3_pool_valid(pool)) { printf("ERROR: %s: POOL %u:%d not available\n", __func__, node, desired_pool); return CVMX_FPA3_INVALID_POOL; } /* Initialize POOL with stack storage */ rc = cvmx_fpa3_pool_stack_init(pool, mem_node, num_blocks, FPA_NATURAL_ALIGNMENT, block_size); if (rc < 0) { printf("ERROR: %s: POOL %u:%u stack setup failed\n", __func__, pool.node, pool.lpool); cvmx_fpa3_release_pool(pool); return CVMX_FPA3_INVALID_POOL; } /* Populate the POOL with buffers */ rc = cvmx_fpa3_pool_populate(pool, num_blocks, block_size, buffer, mem_node); if (rc < 0) { printf("ERROR: %s: POOL %u:%u memory fill failed\n", __func__, pool.node, pool.lpool); cvmx_fpa3_release_pool(pool); return CVMX_FPA3_INVALID_POOL; } cvmx_fpa3_set_pool_name(pool, name); return pool; } /** * Attach an AURA to an existing POOL * * @param pool is the handle of the POOL to be attached * @param desired_aura is the number of the AURA resired * or -1 for the AURA to be automatically assigned * @param name is a symbolic name for the new AURA * @param block_size is the size of all buffers that will be handed * out by this AURA * @param num_blocks is the maximum number of buffers that can be * handed out by this AURA, and can not exceed the number * of buffers filled into the attached POOL * @return the AURA handle * * Only supported on CN78XX. */ cvmx_fpa3_gaura_t cvmx_fpa3_set_aura_for_pool(cvmx_fpa3_pool_t pool, int desired_aura, const char *name, unsigned int block_size, unsigned int num_blocks) { cvmx_fpa3_gaura_t aura; cvmx_fpa_poolx_available_t avail_reg; const char *emsg; int rc; if (debug) debug("%s: aura=%d bufsize=%u cnt=%u '%s'\n", __func__, desired_aura, block_size, num_blocks, name); if (!__cvmx_fpa3_pool_valid(pool)) { printf("ERROR: %s: POOL argument invalid\n", __func__); return CVMX_FPA3_INVALID_GAURA; } /* Verify the AURA buffer count limit is not above POOL buffer count */ avail_reg.u64 = csr_rd_node(pool.node, CVMX_FPA_POOLX_AVAILABLE(pool.lpool)); if (avail_reg.cn78xx.count < num_blocks) { printf("WARNING: %s: AURA %u:%u buffer count limit %u reduced to POOL available count %u\n", __func__, aura.node, aura.laura, num_blocks, (unsigned int)avail_reg.cn78xx.count); num_blocks = avail_reg.cn78xx.count; } /* Reserve an AURA number, follow desired number */ aura = cvmx_fpa3_reserve_aura(pool.node, desired_aura); if (!__cvmx_fpa3_aura_valid(aura)) { printf("ERROR: %s: AURA %u:%d not available\n", __func__, pool.node, desired_aura); return CVMX_FPA3_INVALID_GAURA; } /* Initialize AURA attached to the above POOL */ rc = cvmx_fpa3_aura_cfg(aura, pool, num_blocks, num_blocks + 1, 0); if (rc < 0) { emsg = "AURA configuration"; goto _fail; } cvmx_fpa3_set_aura_name(aura, name); return aura; _fail: printf("ERROR: %s: %s\n", __func__, emsg); cvmx_fpa3_release_aura(aura); return CVMX_FPA3_INVALID_GAURA; } /** * Create a combination of an AURA and a POOL * * @param node is the node number for the pool and memory location * @param desired_aura is the number of the AURA resired * or -1 for the AURA to be automatically assigned * @param name is a symbolic name for the new AURA * @param block_size is the size of all buffers that will be handed * out by this AURA * @param num_blocks is the maximum number of buffers that can be * handed out by this AURA, and can not exceed the number * of buffers filled into the attached POOL * @param buffer is an optionally caller-supplied memory for the buffers * or NULL to cause the buffer memory to be allocated automatically. * * @return the AURA handle * * Note: if the buffer memory is supplied by caller, the application * will be responsable to free this memory. * The POOL number is always automatically assigned. * * Only supported on CN78XX. */ cvmx_fpa3_gaura_t cvmx_fpa3_setup_aura_and_pool(int node, int desired_aura, const char *name, void *buffer, unsigned int block_size, unsigned int num_blocks) { cvmx_fpa3_gaura_t aura = CVMX_FPA3_INVALID_GAURA; cvmx_fpa3_pool_t pool = CVMX_FPA3_INVALID_POOL; const char *emsg = ""; unsigned int mem_node; int rc; if (debug) debug("%s: aura=%d size=%u cnt=%u '%s'\n", __func__, desired_aura, block_size, num_blocks, name); if (node < 0) node = cvmx_get_node_num(); if (num_blocks == 0 || num_blocks > 1 << 30) { printf("ERROR: %s: invalid block count %u\n", __func__, num_blocks); return CVMX_FPA3_INVALID_GAURA; } /* Use memory from the node local to the AURA/POOL */ mem_node = node; /* Reserve an AURA number, follow desired number */ aura = cvmx_fpa3_reserve_aura(node, desired_aura); if (!__cvmx_fpa3_aura_valid(aura)) { emsg = "AURA not available"; goto _fail; } /* Reserve POOL dynamically to underpin this AURA */ pool = cvmx_fpa3_reserve_pool(node, -1); if (!__cvmx_fpa3_pool_valid(pool)) { emsg = "POOL not available"; goto _fail; } /* * Check for block size validity: * With user-supplied buffer, can't increase block size, * so make sure it is at least 128, and is aligned to 128 * For all cases make sure it is not too big */ if ((buffer && (block_size < CVMX_CACHE_LINE_SIZE || (block_size & (CVMX_CACHE_LINE_SIZE - 1)))) || block_size > (1 << 17)) { printf("ERROR: %s: invalid block size %u\n", __func__, block_size); emsg = "invalid block size"; goto _fail; } if (block_size < CVMX_CACHE_LINE_SIZE) block_size = CVMX_CACHE_LINE_SIZE; /* Initialize POOL with stack storage */ rc = cvmx_fpa3_pool_stack_init(pool, mem_node, num_blocks, FPA_NATURAL_ALIGNMENT, block_size); if (rc < 0) { emsg = "POOL Stack setup"; goto _fail; } /* Populate the AURA/POOL with buffers */ rc = cvmx_fpa3_pool_populate(pool, num_blocks, block_size, buffer, mem_node); if (rc < 0) { emsg = "POOL buffer memory"; goto _fail; } /* Initialize AURA attached to the above POOL */ rc = cvmx_fpa3_aura_cfg(aura, pool, num_blocks, num_blocks + 1, 0); if (rc < 0) { emsg = "AURA configuration"; goto _fail; } cvmx_fpa3_set_aura_name(aura, name); cvmx_fpa3_set_pool_name(pool, name); if (debug) debug("%s: AURA %u:%u ready, avail=%lld\n", __func__, aura.node, aura.laura, cvmx_fpa3_get_available(aura)); return aura; _fail: printf("ERROR: %s: Failed in %s\n", __func__, emsg); /* These will silently fail if POOL/AURA is not valid */ cvmx_fpa3_release_aura(aura); cvmx_fpa3_release_pool(pool); return CVMX_FPA3_INVALID_GAURA; } /** * Setup a legacy FPA pool * * @param desired_pool is the POOL number desired or -1 for automatic * assignment * @param name is the symbolic POOL name * @param block_size is the size of all buffers held in this POOL * @param num_blocks is the number of free buffers to fill into the POOL * @param buffer is an optionally caller-supplied memory for the buffers * or NULL to cause the buffer memory to be allocated automatically. * @return pool number or -1 on error. * * Note: if the buffer memory is supplied by caller, the application * will be responsable to free this memory. */ int cvmx_fpa1_setup_pool(int desired_pool, const char *name, void *buffer, unsigned int block_size, unsigned int num_blocks) { cvmx_fpa1_pool_t pool = CVMX_FPA1_INVALID_POOL; int rc; if (debug) debug("%s: desired pool %d, name '%s', mem %p size %u count %u\n", __func__, desired_pool, name, buffer, block_size, num_blocks); /* Reserve desired pool or get one dynamically */ pool = cvmx_fpa1_reserve_pool(desired_pool); /* Validate reserved pool, if successful */ if (pool < 0 || pool >= cvmx_fpa_get_max_pools()) { /* global resources would have printed an error message here */ return CVMX_FPA1_INVALID_POOL; } /* Initialize the pool */ rc = cvmx_fpa1_pool_init(pool, num_blocks, block_size, buffer); if (rc < 0) { printf("ERROR: %s: failed pool %u init\n", __func__, pool); cvmx_fpa1_release_pool(pool); return CVMX_FPA1_INVALID_POOL; } rc = cvmx_fpa1_fill_pool(pool, num_blocks, buffer); if (rc < 0) { printf("ERROR: %s: failed pool %u memory\n", __func__, pool); cvmx_fpa1_release_pool(pool); return CVMX_FPA1_INVALID_POOL; } if (debug) debug("%s: pool %d filled up\b", __func__, pool); cvmx_fpa_set_name(pool, name); return pool; } /** * Setup an FPA pool with buffers * * @param pool is the POOL number desired or -1 for automatic assignment * @param name is the symbolic POOL name * @param buffer is an optionally caller-supplied memory for the buffers * or NULL to cause the buffer memory to be allocated automatically. * @param block_size is the size of all buffers held in this POOL * @param num_blocks is the number of free buffers to fill into the POOL * @param buffer is an optionally caller-supplied memory for the buffers * or NULL to cause the buffer memory to be allocated automatically. * * @return pool number or -1 on error. * * Note: if the buffer memory is supplied by caller, the application * will be responsable to free this memory. * This function will work with CN78XX models in backward-compatible mode */ int cvmx_fpa_setup_pool(int pool, const char *name, void *buffer, u64 block_size, u64 num_blocks) { if (octeon_has_feature(OCTEON_FEATURE_FPA3)) { cvmx_fpa3_gaura_t aura; aura = cvmx_fpa3_setup_aura_and_pool(-1, pool, name, buffer, block_size, num_blocks); if (!__cvmx_fpa3_aura_valid(aura)) return -1; if (aura.laura >= CVMX_FPA1_NUM_POOLS && pool >= 0) printf("WARNING: %s: AURA %u is out of range for backward-compatible operation\n", __func__, aura.laura); return aura.laura; } else { return cvmx_fpa1_setup_pool(pool, name, buffer, block_size, num_blocks); } }