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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN2PR03MB2270 Subject: [dpdk-dev] [PATCH v4 12/41] bus/dpaa: add BMAN driver core X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 09 Sep 2017 11:10:58 -0000 The Buffer Manager (BMan) is a hardware buffer pool management block that allows software and accelerators on the datapath to acquire and release buffers in order to build frames. This patch adds the core routines. Signed-off-by: Geoff Thorpe Signed-off-by: Roy Pledge Signed-off-by: Hemant Agrawal Signed-off-by: Shreyansh Jain --- drivers/bus/dpaa/Makefile | 1 + drivers/bus/dpaa/base/qbman/bman_driver.c | 311 +++++++++++++++++++++++++ drivers/bus/dpaa/base/qbman/bman_priv.h | 125 ++++++++++ drivers/bus/dpaa/include/fsl_bman.h | 375 ++++++++++++++++++++++++++++++ drivers/bus/dpaa/include/fsl_usd.h | 5 + 5 files changed, 817 insertions(+) create mode 100644 drivers/bus/dpaa/base/qbman/bman_driver.c create mode 100644 drivers/bus/dpaa/base/qbman/bman_priv.h create mode 100644 drivers/bus/dpaa/include/fsl_bman.h diff --git a/drivers/bus/dpaa/Makefile b/drivers/bus/dpaa/Makefile index ba87386..2d626b2 100644 --- a/drivers/bus/dpaa/Makefile +++ b/drivers/bus/dpaa/Makefile @@ -70,6 +70,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_DPAA_BUS) += \ base/fman/of.c \ base/fman/netcfg_layer.c \ base/qbman/process.c \ + base/qbman/bman_driver.c \ base/qbman/qman.c \ base/qbman/qman_driver.c \ base/qbman/dpaa_alloc.c \ diff --git a/drivers/bus/dpaa/base/qbman/bman_driver.c b/drivers/bus/dpaa/base/qbman/bman_driver.c new file mode 100644 index 0000000..fb3c50e --- /dev/null +++ b/drivers/bus/dpaa/base/qbman/bman_driver.c @@ -0,0 +1,311 @@ +/*- + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * BSD LICENSE + * + * Copyright 2008-2016 Freescale Semiconductor Inc. + * Copyright 2017 NXP. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * GPL LICENSE SUMMARY + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include + +#include +#include +#include "bman_priv.h" +#include + +/* + * Global variables of the max portal/pool number this bman version supported + */ +u16 bman_ip_rev; +u16 bman_pool_max; +void *bman_ccsr_map; + +/*****************/ +/* Portal driver */ +/*****************/ + +static __thread int fd = -1; +static __thread struct bm_portal_config pcfg; +static __thread struct dpaa_ioctl_portal_map map = { + .type = dpaa_portal_bman +}; + +static int fsl_bman_portal_init(uint32_t idx, int is_shared) +{ + cpu_set_t cpuset; + int loop, ret; + struct dpaa_ioctl_irq_map irq_map; + + /* Verify the thread's cpu-affinity */ + ret = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), + &cpuset); + if (ret) { + error(0, ret, "pthread_getaffinity_np()"); + return ret; + } + pcfg.cpu = -1; + for (loop = 0; loop < CPU_SETSIZE; loop++) + if (CPU_ISSET(loop, &cpuset)) { + if (pcfg.cpu != -1) { + pr_err("Thread is not affine to 1 cpu"); + return -EINVAL; + } + pcfg.cpu = loop; + } + if (pcfg.cpu == -1) { + pr_err("Bug in getaffinity handling!"); + return -EINVAL; + } + /* Allocate and map a bman portal */ + map.index = idx; + ret = process_portal_map(&map); + if (ret) { + error(0, ret, "process_portal_map()"); + return ret; + } + /* Make the portal's cache-[enabled|inhibited] regions */ + pcfg.addr_virt[DPAA_PORTAL_CE] = map.addr.cena; + pcfg.addr_virt[DPAA_PORTAL_CI] = map.addr.cinh; + pcfg.is_shared = is_shared; + pcfg.index = map.index; + bman_depletion_fill(&pcfg.mask); + + fd = open(BMAN_PORTAL_IRQ_PATH, O_RDONLY); + if (fd == -1) { + pr_err("BMan irq init failed"); + process_portal_unmap(&map.addr); + return -EBUSY; + } + /* Use the IRQ FD as a unique IRQ number */ + pcfg.irq = fd; + + /* Set the IRQ number */ + irq_map.type = dpaa_portal_bman; + irq_map.portal_cinh = map.addr.cinh; + process_portal_irq_map(fd, &irq_map); + return 0; +} + +static int fsl_bman_portal_finish(void) +{ + int ret; + + process_portal_irq_unmap(fd); + + ret = process_portal_unmap(&map.addr); + if (ret) + error(0, ret, "process_portal_unmap()"); + return ret; +} + +int bman_thread_init(void) +{ + /* Convert from contiguous/virtual cpu numbering to real cpu when + * calling into the code that is dependent on the device naming. + */ + return fsl_bman_portal_init(QBMAN_ANY_PORTAL_IDX, 0); +} + +int bman_thread_finish(void) +{ + return fsl_bman_portal_finish(); +} + +void bman_thread_irq(void) +{ + qbman_invoke_irq(pcfg.irq); + /* Now we need to uninhibit interrupts. This is the only code outside + * the regular portal driver that manipulates any portal register, so + * rather than breaking that encapsulation I am simply hard-coding the + * offset to the inhibit register here. + */ + out_be32(pcfg.addr_virt[DPAA_PORTAL_CI] + 0xe0c, 0); +} + +int bman_init_ccsr(const struct device_node *node) +{ + static int ccsr_map_fd; + uint64_t phys_addr; + const uint32_t *bman_addr; + uint64_t regs_size; + + bman_addr = of_get_address(node, 0, ®s_size, NULL); + if (!bman_addr) { + pr_err("of_get_address cannot return BMan address"); + return -EINVAL; + } + phys_addr = of_translate_address(node, bman_addr); + if (!phys_addr) { + pr_err("of_translate_address failed"); + return -EINVAL; + } + + ccsr_map_fd = open(BMAN_CCSR_MAP, O_RDWR); + if (unlikely(ccsr_map_fd < 0)) { + pr_err("Can not open /dev/mem for BMan CCSR map"); + return ccsr_map_fd; + } + + bman_ccsr_map = mmap(NULL, regs_size, PROT_READ | + PROT_WRITE, MAP_SHARED, ccsr_map_fd, phys_addr); + if (bman_ccsr_map == MAP_FAILED) { + pr_err("Can not map BMan CCSR base Bman: " + "0x%x Phys: 0x%lx size 0x%lx", + *bman_addr, phys_addr, regs_size); + return -EINVAL; + } + + return 0; +} + +int bman_global_init(void) +{ + const struct device_node *dt_node; + static int done; + + if (done) + return -EBUSY; + /* Use the device-tree to determine IP revision until something better + * is devised. + */ + dt_node = of_find_compatible_node(NULL, NULL, "fsl,bman-portal"); + if (!dt_node) { + pr_err("No bman portals available for any CPU\n"); + return -ENODEV; + } + if (of_device_is_compatible(dt_node, "fsl,bman-portal-1.0") || + of_device_is_compatible(dt_node, "fsl,bman-portal-1.0.0")) { + bman_ip_rev = BMAN_REV10; + bman_pool_max = 64; + } else if (of_device_is_compatible(dt_node, "fsl,bman-portal-2.0") || + of_device_is_compatible(dt_node, "fsl,bman-portal-2.0.8")) { + bman_ip_rev = BMAN_REV20; + bman_pool_max = 8; + } else if (of_device_is_compatible(dt_node, "fsl,bman-portal-2.1.0") || + of_device_is_compatible(dt_node, "fsl,bman-portal-2.1.1") || + of_device_is_compatible(dt_node, "fsl,bman-portal-2.1.2") || + of_device_is_compatible(dt_node, "fsl,bman-portal-2.1.3")) { + bman_ip_rev = BMAN_REV21; + bman_pool_max = 64; + } else { + pr_warn("unknown BMan version in portal node,default " + "to rev1.0"); + bman_ip_rev = BMAN_REV10; + bman_pool_max = 64; + } + + if (!bman_ip_rev) { + pr_err("Unknown bman portal version\n"); + return -ENODEV; + } + { + const struct device_node *dn = of_find_compatible_node(NULL, + NULL, "fsl,bman"); + if (!dn) + pr_err("No bman device node available"); + + if (bman_init_ccsr(dn)) + pr_err("BMan CCSR map failed."); + } + + done = 1; + return 0; +} + +#define BMAN_POOL_CONTENT(n) (0x0600 + ((n) * 0x04)) +u32 bm_pool_free_buffers(u32 bpid) +{ + return in_be32(bman_ccsr_map + BMAN_POOL_CONTENT(bpid)); +} + +static u32 __generate_thresh(u32 val, int roundup) +{ + u32 e = 0; /* co-efficient, exponent */ + int oddbit = 0; + + while (val > 0xff) { + oddbit = val & 1; + val >>= 1; + e++; + if (roundup && oddbit) + val++; + } + DPAA_ASSERT(e < 0x10); + return (val | (e << 8)); +} + +#define POOL_SWDET(n) (0x0000 + ((n) * 0x04)) +#define POOL_HWDET(n) (0x0100 + ((n) * 0x04)) +#define POOL_SWDXT(n) (0x0200 + ((n) * 0x04)) +#define POOL_HWDXT(n) (0x0300 + ((n) * 0x04)) +int bm_pool_set(u32 bpid, const u32 *thresholds) +{ + if (!bman_ccsr_map) + return -ENODEV; + if (bpid >= bman_pool_max) + return -EINVAL; + out_be32(bman_ccsr_map + POOL_SWDET(bpid), + __generate_thresh(thresholds[0], 0)); + out_be32(bman_ccsr_map + POOL_SWDXT(bpid), + __generate_thresh(thresholds[1], 1)); + out_be32(bman_ccsr_map + POOL_HWDET(bpid), + __generate_thresh(thresholds[2], 0)); + out_be32(bman_ccsr_map + POOL_HWDXT(bpid), + __generate_thresh(thresholds[3], 1)); + return 0; +} + +#define BMAN_LOW_DEFAULT_THRESH 0x40 +#define BMAN_HIGH_DEFAULT_THRESH 0x80 +int bm_pool_set_hw_threshold(u32 bpid, const u32 low_thresh, + const u32 high_thresh) +{ + if (!bman_ccsr_map) + return -ENODEV; + if (bpid >= bman_pool_max) + return -EINVAL; + if (low_thresh && high_thresh) { + out_be32(bman_ccsr_map + POOL_HWDET(bpid), + __generate_thresh(low_thresh, 0)); + out_be32(bman_ccsr_map + POOL_HWDXT(bpid), + __generate_thresh(high_thresh, 1)); + } else { + out_be32(bman_ccsr_map + POOL_HWDET(bpid), + __generate_thresh(BMAN_LOW_DEFAULT_THRESH, 0)); + out_be32(bman_ccsr_map + POOL_HWDXT(bpid), + __generate_thresh(BMAN_HIGH_DEFAULT_THRESH, 1)); + } + return 0; +} diff --git a/drivers/bus/dpaa/base/qbman/bman_priv.h b/drivers/bus/dpaa/base/qbman/bman_priv.h new file mode 100644 index 0000000..07d9cec --- /dev/null +++ b/drivers/bus/dpaa/base/qbman/bman_priv.h @@ -0,0 +1,125 @@ +/*- + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * BSD LICENSE + * + * Copyright 2008-2016 Freescale Semiconductor Inc. + * Copyright 2017 NXP. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * GPL LICENSE SUMMARY + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __BMAN_PRIV_H +#define __BMAN_PRIV_H + +#include "dpaa_sys.h" +#include + +/* Revision info (for errata and feature handling) */ +#define BMAN_REV10 0x0100 +#define BMAN_REV20 0x0200 +#define BMAN_REV21 0x0201 + +#define BMAN_PORTAL_IRQ_PATH "/dev/fsl-usdpaa-irq" +#define BMAN_CCSR_MAP "/dev/mem" + +/* This mask contains all the "irqsource" bits visible to API users */ +#define BM_PIRQ_VISIBLE (BM_PIRQ_RCRI | BM_PIRQ_BSCN) + +/* These are bm__(). So for example, bm_disable_write() means "write + * the disable register" rather than "disable the ability to write". + */ +#define bm_isr_status_read(bm) __bm_isr_read(bm, bm_isr_status) +#define bm_isr_status_clear(bm, m) __bm_isr_write(bm, bm_isr_status, m) +#define bm_isr_enable_read(bm) __bm_isr_read(bm, bm_isr_enable) +#define bm_isr_enable_write(bm, v) __bm_isr_write(bm, bm_isr_enable, v) +#define bm_isr_disable_read(bm) __bm_isr_read(bm, bm_isr_disable) +#define bm_isr_disable_write(bm, v) __bm_isr_write(bm, bm_isr_disable, v) +#define bm_isr_inhibit(bm) __bm_isr_write(bm, bm_isr_inhibit, 1) +#define bm_isr_uninhibit(bm) __bm_isr_write(bm, bm_isr_inhibit, 0) + +/* + * Global variables of the max portal/pool number this bman version supported + */ +extern u16 bman_pool_max; + +/* used by CCSR and portal interrupt code */ +enum bm_isr_reg { + bm_isr_status = 0, + bm_isr_enable = 1, + bm_isr_disable = 2, + bm_isr_inhibit = 3 +}; + +struct bm_portal_config { + /* + * Corenet portal addresses; + * [0]==cache-enabled, [1]==cache-inhibited. + */ + void __iomem *addr_virt[2]; + /* Allow these to be joined in lists */ + struct list_head list; + /* User-visible portal configuration settings */ + /* This is used for any "core-affine" portals, ie. default portals + * associated to the corresponding cpu. -1 implies that there is no + * core affinity configured. + */ + int cpu; + /* portal interrupt line */ + int irq; + /* the unique index of this portal */ + u32 index; + /* Is this portal shared? (If so, it has coarser locking and demuxes + * processing on behalf of other CPUs.). + */ + int is_shared; + /* These are the buffer pool IDs that may be used via this portal. */ + struct bman_depletion mask; + +}; + +int bman_init_ccsr(const struct device_node *node); + +struct bman_portal *bman_create_affine_portal( + const struct bm_portal_config *config); +const struct bm_portal_config *bman_destroy_affine_portal(void); + +/* Set depletion thresholds associated with a buffer pool. Requires that the + * operating system have access to Bman CCSR (ie. compiled in support and + * run-time access courtesy of the device-tree). + */ +int bm_pool_set(u32 bpid, const u32 *thresholds); + +/* Read the free buffer count for a given buffer */ +u32 bm_pool_free_buffers(u32 bpid); + +#endif /* __BMAN_PRIV_H */ diff --git a/drivers/bus/dpaa/include/fsl_bman.h b/drivers/bus/dpaa/include/fsl_bman.h new file mode 100644 index 0000000..383106b --- /dev/null +++ b/drivers/bus/dpaa/include/fsl_bman.h @@ -0,0 +1,375 @@ +/*- + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * BSD LICENSE + * + * Copyright 2008-2012 Freescale Semiconductor, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * GPL LICENSE SUMMARY + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __FSL_BMAN_H +#define __FSL_BMAN_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* This wrapper represents a bit-array for the depletion state of the 64 Bman + * buffer pools. + */ +struct bman_depletion { + u32 state[2]; +}; + +static inline void bman_depletion_init(struct bman_depletion *c) +{ + c->state[0] = c->state[1] = 0; +} + +static inline void bman_depletion_fill(struct bman_depletion *c) +{ + c->state[0] = c->state[1] = ~0; +} + +/* --- Bman data structures (and associated constants) --- */ + +/* Represents s/w corenet portal mapped data structures */ +struct bm_rcr_entry; /* RCR (Release Command Ring) entries */ +struct bm_mc_command; /* MC (Management Command) command */ +struct bm_mc_result; /* MC result */ + +/* Code-reduction, define a wrapper for 48-bit buffers. In cases where a buffer + * pool id specific to this buffer is needed (BM_RCR_VERB_CMD_BPID_MULTI, + * BM_MCC_VERB_ACQUIRE), the 'bpid' field is used. + */ +struct bm_buffer { + union { + struct { +#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ + u8 __reserved1; + u8 bpid; + u16 hi; /* High 16-bits of 48-bit address */ + u32 lo; /* Low 32-bits of 48-bit address */ +#else + u32 lo; + u16 hi; + u8 bpid; + u8 __reserved; +#endif + }; + struct { +#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ + u64 __notaddress:16; + u64 addr:48; +#else + u64 addr:48; + u64 __notaddress:16; +#endif + }; + u64 opaque; + }; +} __attribute__((aligned(8))); +static inline u64 bm_buffer_get64(const struct bm_buffer *buf) +{ + return buf->addr; +} + +static inline dma_addr_t bm_buf_addr(const struct bm_buffer *buf) +{ + return (dma_addr_t)buf->addr; +} + +#define bm_buffer_set64(buf, v) \ + do { \ + struct bm_buffer *__buf931 = (buf); \ + __buf931->hi = upper_32_bits(v); \ + __buf931->lo = lower_32_bits(v); \ + } while (0) + +/* See 1.5.3.5.4: "Release Command" */ +struct bm_rcr_entry { + union { + struct { + u8 __dont_write_directly__verb; + u8 bpid; /* used with BM_RCR_VERB_CMD_BPID_SINGLE */ + u8 __reserved1[62]; + }; + struct bm_buffer bufs[8]; + }; +} __packed; +#define BM_RCR_VERB_VBIT 0x80 +#define BM_RCR_VERB_CMD_MASK 0x70 /* one of two values; */ +#define BM_RCR_VERB_CMD_BPID_SINGLE 0x20 +#define BM_RCR_VERB_CMD_BPID_MULTI 0x30 +#define BM_RCR_VERB_BUFCOUNT_MASK 0x0f /* values 1..8 */ + +/* See 1.5.3.1: "Acquire Command" */ +/* See 1.5.3.2: "Query Command" */ +struct bm_mcc_acquire { + u8 bpid; + u8 __reserved1[62]; +} __packed; +struct bm_mcc_query { + u8 __reserved2[63]; +} __packed; +struct bm_mc_command { + u8 __dont_write_directly__verb; + union { + struct bm_mcc_acquire acquire; + struct bm_mcc_query query; + }; +} __packed; +#define BM_MCC_VERB_VBIT 0x80 +#define BM_MCC_VERB_CMD_MASK 0x70 /* where the verb contains; */ +#define BM_MCC_VERB_CMD_ACQUIRE 0x10 +#define BM_MCC_VERB_CMD_QUERY 0x40 +#define BM_MCC_VERB_ACQUIRE_BUFCOUNT 0x0f /* values 1..8 go here */ + +/* See 1.5.3.3: "Acquire Response" */ +/* See 1.5.3.4: "Query Response" */ +struct bm_pool_state { + u8 __reserved1[32]; + /* "availability state" and "depletion state" */ + struct { + u8 __reserved1[8]; + /* Access using bman_depletion_***() */ + struct bman_depletion state; + } as, ds; +}; + +struct bm_mc_result { + union { + struct { + u8 verb; + u8 __reserved1[63]; + }; + union { + struct { + u8 __reserved1; + u8 bpid; + u8 __reserved2[62]; + }; + struct bm_buffer bufs[8]; + } acquire; + struct bm_pool_state query; + }; +} __packed; +#define BM_MCR_VERB_VBIT 0x80 +#define BM_MCR_VERB_CMD_MASK BM_MCC_VERB_CMD_MASK +#define BM_MCR_VERB_CMD_ACQUIRE BM_MCC_VERB_CMD_ACQUIRE +#define BM_MCR_VERB_CMD_QUERY BM_MCC_VERB_CMD_QUERY +#define BM_MCR_VERB_CMD_ERR_INVALID 0x60 +#define BM_MCR_VERB_CMD_ERR_ECC 0x70 +#define BM_MCR_VERB_ACQUIRE_BUFCOUNT BM_MCC_VERB_ACQUIRE_BUFCOUNT /* 0..8 */ + +/* Portal and Buffer Pools */ +/* Represents a managed portal */ +struct bman_portal; + +/* This object type represents Bman buffer pools. */ +struct bman_pool; + +/* This struct specifies parameters for a bman_pool object. */ +struct bman_pool_params { + /* index of the buffer pool to encapsulate (0-63), ignored if + * BMAN_POOL_FLAG_DYNAMIC_BPID is set. + */ + u32 bpid; + /* bit-mask of BMAN_POOL_FLAG_*** options */ + u32 flags; + /* depletion-entry/exit thresholds, if BMAN_POOL_FLAG_THRESH is set. NB: + * this is only allowed if BMAN_POOL_FLAG_DYNAMIC_BPID is used *and* + * when run in the control plane (which controls Bman CCSR). This array + * matches the definition of bm_pool_set(). + */ + u32 thresholds[4]; +}; + +/* Flags to bman_new_pool() */ +#define BMAN_POOL_FLAG_NO_RELEASE 0x00000001 /* can't release to pool */ +#define BMAN_POOL_FLAG_ONLY_RELEASE 0x00000002 /* can only release to pool */ +#define BMAN_POOL_FLAG_DYNAMIC_BPID 0x00000008 /* (de)allocate bpid */ +#define BMAN_POOL_FLAG_THRESH 0x00000010 /* set depletion thresholds */ + +/* Flags to bman_release() */ +#define BMAN_RELEASE_FLAG_NOW 0x00000008 /* issue immediate release */ + + +/** + * bman_get_portal_index - get portal configuration index + */ +int bman_get_portal_index(void); + +/** + * bman_rcr_is_empty - Determine if portal's RCR is empty + * + * For use in situations where a cpu-affine caller needs to determine when all + * releases for the local portal have been processed by Bman but can't use the + * BMAN_RELEASE_FLAG_WAIT_SYNC flag to do this from the final bman_release(). + * The function forces tracking of RCR consumption (which normally doesn't + * happen until release processing needs to find space to put new release + * commands), and returns zero if the ring still has unprocessed entries, + * non-zero if it is empty. + */ +int bman_rcr_is_empty(void); + +/** + * bman_alloc_bpid_range - Allocate a contiguous range of BPIDs + * @result: is set by the API to the base BPID of the allocated range + * @count: the number of BPIDs required + * @align: required alignment of the allocated range + * @partial: non-zero if the API can return fewer than @count BPIDs + * + * Returns the number of buffer pools allocated, or a negative error code. If + * @partial is non zero, the allocation request may return a smaller range of + * BPs than requested (though alignment will be as requested). If @partial is + * zero, the return value will either be 'count' or negative. + */ +int bman_alloc_bpid_range(u32 *result, u32 count, u32 align, int partial); +static inline int bman_alloc_bpid(u32 *result) +{ + int ret = bman_alloc_bpid_range(result, 1, 0, 0); + + return (ret > 0) ? 0 : ret; +} + +/** + * bman_release_bpid_range - Release the specified range of buffer pool IDs + * @bpid: the base BPID of the range to deallocate + * @count: the number of BPIDs in the range + * + * This function can also be used to seed the allocator with ranges of BPIDs + * that it can subsequently allocate from. + */ +void bman_release_bpid_range(u32 bpid, unsigned int count); +static inline void bman_release_bpid(u32 bpid) +{ + bman_release_bpid_range(bpid, 1); +} + +int bman_reserve_bpid_range(u32 bpid, unsigned int count); +static inline int bman_reserve_bpid(u32 bpid) +{ + return bman_reserve_bpid_range(bpid, 1); +} + +void bman_seed_bpid_range(u32 bpid, unsigned int count); + +int bman_shutdown_pool(u32 bpid); + +/** + * bman_new_pool - Allocates a Buffer Pool object + * @params: parameters specifying the buffer pool ID and behaviour + * + * Creates a pool object for the given @params. A portal and the depletion + * callback field of @params are only used if the BMAN_POOL_FLAG_DEPLETION flag + * is set. NB, the fields from @params are copied into the new pool object, so + * the structure provided by the caller can be released or reused after the + * function returns. + */ +struct bman_pool *bman_new_pool(const struct bman_pool_params *params); + +/** + * bman_free_pool - Deallocates a Buffer Pool object + * @pool: the pool object to release + */ +void bman_free_pool(struct bman_pool *pool); + +/** + * bman_get_params - Returns a pool object's parameters. + * @pool: the pool object + * + * The returned pointer refers to state within the pool object so must not be + * modified and can no longer be read once the pool object is destroyed. + */ +const struct bman_pool_params *bman_get_params(const struct bman_pool *pool); + +/** + * bman_release - Release buffer(s) to the buffer pool + * @pool: the buffer pool object to release to + * @bufs: an array of buffers to release + * @num: the number of buffers in @bufs (1-8) + * @flags: bit-mask of BMAN_RELEASE_FLAG_*** options + * + */ +int bman_release(struct bman_pool *pool, const struct bm_buffer *bufs, u8 num, + u32 flags); + +/** + * bman_acquire - Acquire buffer(s) from a buffer pool + * @pool: the buffer pool object to acquire from + * @bufs: array for storing the acquired buffers + * @num: the number of buffers desired (@bufs is at least this big) + * + * Issues an "Acquire" command via the portal's management command interface. + * The return value will be the number of buffers obtained from the pool, or a + * negative error code if a h/w error or pool starvation was encountered. + */ +int bman_acquire(struct bman_pool *pool, struct bm_buffer *bufs, u8 num, + u32 flags); + +/** + * bman_query_pools - Query all buffer pool states + * @state: storage for the queried availability and depletion states + */ +int bman_query_pools(struct bm_pool_state *state); + +/** + * bman_query_free_buffers - Query how many free buffers are in buffer pool + * @pool: the buffer pool object to query + * + * Return the number of the free buffers + */ +u32 bman_query_free_buffers(struct bman_pool *pool); + +/** + * bman_update_pool_thresholds - Change the buffer pool's depletion thresholds + * @pool: the buffer pool object to which the thresholds will be set + * @thresholds: the new thresholds + */ +int bman_update_pool_thresholds(struct bman_pool *pool, const u32 *thresholds); + +/** + * bm_pool_set_hw_threshold - Change the buffer pool's thresholds + * @pool: Pool id + * @low_thresh: low threshold + * @high_thresh: high threshold + */ +int bm_pool_set_hw_threshold(u32 bpid, const u32 low_thresh, + const u32 high_thresh); + +#ifdef __cplusplus +} +#endif + +#endif /* __FSL_BMAN_H */ diff --git a/drivers/bus/dpaa/include/fsl_usd.h b/drivers/bus/dpaa/include/fsl_usd.h index a4897b0..a3243af 100644 --- a/drivers/bus/dpaa/include/fsl_usd.h +++ b/drivers/bus/dpaa/include/fsl_usd.h @@ -50,7 +50,9 @@ extern "C" { /* Thread-entry/exit hooks; */ int qman_thread_init(void); +int bman_thread_init(void); int qman_thread_finish(void); +int bman_thread_finish(void); #define QBMAN_ANY_PORTAL_IDX 0xffffffff @@ -92,9 +94,12 @@ int bman_free_raw_portal(struct dpaa_raw_portal *portal); * into another blocking read/select/poll. */ void qman_thread_irq(void); +void bman_thread_irq(void); /* Global setup */ int qman_global_init(void); +int bman_global_init(void); + #ifdef __cplusplus } #endif -- 2.9.3