[PATCH v2 27/52] mips: octeon: Add cvmx-fpa.c

Stefan Roese
2022-04-07T07:29:21Z

Import cvmx-fpa.c from 2013 U-Boot. It will be used by the later
added drivers to support networking on the MIPS Octeon II / III
platforms.

Signed-off-by: Aaron Williams <awilliams@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
---
arch/mips/mach-octeon/cvmx-fpa.c | 1127 ++++++++++++++++++++++++++++++
1 file changed, 1127 insertions(+)
create mode 100644 arch/mips/mach-octeon/cvmx-fpa.c

diff --git a/arch/mips/mach-octeon/cvmx-fpa.c b/arch/mips/mach-octeon/cvmx-fpa.c
new file mode 100644
index 000000000000..14fe87c739c9
--- /dev/null
+++ b/arch/mips/mach-octeon/cvmx-fpa.c
@@ -0,0 +1,1127 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2022 Marvell International Ltd.
+ *
+ * Support library for the hardware Free Pool Allocator.
+ */
+
+#include <errno.h>
+#include <log.h>
+#include <time.h>
+#include <linux/delay.h>
+
+#include <mach/cvmx-regs.h>
+#include <mach/cvmx-csr.h>
+#include <mach/cvmx-bootmem.h>
+#include <mach/octeon-model.h>
+#include <mach/cvmx-fuse.h>
+#include <mach/octeon-feature.h>
+#include <mach/cvmx-qlm.h>
+#include <mach/octeon_qlm.h>
+#include <mach/cvmx-pcie.h>
+#include <mach/cvmx-coremask.h>
+#include <mach/cvmx-range.h>
+#include <mach/cvmx-global-resources.h>
+
+#include <mach/cvmx-agl-defs.h>
+#include <mach/cvmx-bgxx-defs.h>
+#include <mach/cvmx-ciu-defs.h>
+#include <mach/cvmx-gmxx-defs.h>
+#include <mach/cvmx-gserx-defs.h>
+#include <mach/cvmx-ilk-defs.h>
+#include <mach/cvmx-ipd-defs.h>
+#include <mach/cvmx-pcsx-defs.h>
+#include <mach/cvmx-pcsxx-defs.h>
+#include <mach/cvmx-pki-defs.h>
+#include <mach/cvmx-pko-defs.h>
+#include <mach/cvmx-xcv-defs.h>
+
+#include <mach/cvmx-hwpko.h>
+#include <mach/cvmx-ilk.h>
+#include <mach/cvmx-pki.h>
+#include <mach/cvmx-pko3.h>
+#include <mach/cvmx-pko3-queue.h>
+#include <mach/cvmx-pko3-resources.h>
+
+#include <mach/cvmx-helper.h>
+#include <mach/cvmx-helper-board.h>
+#include <mach/cvmx-helper-cfg.h>
+
+#include <mach/cvmx-helper-bgx.h>
+#include <mach/cvmx-helper-cfg.h>
+#include <mach/cvmx-helper-util.h>
+#include <mach/cvmx-helper-pki.h>
+
+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);
+ }
+}
--
2.35.1