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{
    "id": 28115,
    "url": "https://patches.dpdk.org/api/patches/28115/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20170831063719.19273-6-santosh.shukla@caviumnetworks.com/",
    "project": {
        "id": 1,
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        "list_email": "dev@dpdk.org",
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    "msgid": "<20170831063719.19273-6-santosh.shukla@caviumnetworks.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20170831063719.19273-6-santosh.shukla@caviumnetworks.com",
    "date": "2017-08-31T06:37:14",
    "name": "[dpdk-dev,v2,05/10] mempool/octeontx: implement pool free",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "af4789702982bcf08000442aae8295749025d303",
    "submitter": {
        "id": 480,
        "url": "https://patches.dpdk.org/api/people/480/?format=api",
        "name": "Santosh Shukla",
        "email": "santosh.shukla@caviumnetworks.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20170831063719.19273-6-santosh.shukla@caviumnetworks.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/28115/comments/",
    "check": "fail",
    "checks": "https://patches.dpdk.org/api/patches/28115/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "Santosh Shukla <santosh.shukla@caviumnetworks.com>",
        "To": "dev@dpdk.org,\n\tolivier.matz@6wind.com",
        "Cc": "jerin.jacob@caviumnetworks.com, john.mcnamara@intel.com,\n\tthomas@monjalon.net, hemant.agrawal@nxp.com,\n\tSantosh Shukla <santosh.shukla@caviumnetworks.com>",
        "Date": "Thu, 31 Aug 2017 12:07:14 +0530",
        "Message-Id": "<20170831063719.19273-6-santosh.shukla@caviumnetworks.com>",
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        "Subject": "[dpdk-dev] [PATCH v2 05/10] mempool/octeontx: implement pool free",
        "X-BeenThere": "dev@dpdk.org",
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        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "Errors-To": "dev-bounces@dpdk.org",
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    },
    "content": "Upon pool free request from application, Octeon FPA free\ndoes following:\n- Uses mbox to reset fpapf pool setup.\n- frees fpavf resources.\n\nSigned-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>\nSigned-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>\n---\nv1 --> v2:\n- Using newly introduced api 'octeontx_fpa_bufpool_gpool()'\nfor getting the pool-id from handle.\n\n drivers/mempool/octeontx/octeontx_fpavf.c       | 111 ++++++++++++++++++++++++\n drivers/mempool/octeontx/octeontx_fpavf.h       |   2 +\n drivers/mempool/octeontx/rte_mempool_octeontx.c |  12 ++-\n 3 files changed, 124 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/mempool/octeontx/octeontx_fpavf.c b/drivers/mempool/octeontx/octeontx_fpavf.c\nindex c0c9d8325..44253b09e 100644\n--- a/drivers/mempool/octeontx/octeontx_fpavf.c\n+++ b/drivers/mempool/octeontx/octeontx_fpavf.c\n@@ -581,6 +581,117 @@ octeontx_fpa_bufpool_create(unsigned int object_size, unsigned int object_count,\n \treturn (uintptr_t)NULL;\n }\n \n+/*\n+ * Destroy a buffer pool.\n+ */\n+int\n+octeontx_fpa_bufpool_destroy(uintptr_t handle, int node_id)\n+{\n+\tvoid **node, **curr, *head = NULL;\n+\tuint64_t sz;\n+\tuint64_t cnt, avail;\n+\tuint8_t gpool;\n+\tuintptr_t pool_bar;\n+\tint ret;\n+\n+\tRTE_SET_USED(node_id);\n+\n+\t/* Wait for all outstanding writes to be comitted */\n+\trte_smp_wmb();\n+\n+\tif (unlikely(!octeontx_fpa_handle_valid(handle)))\n+\t\treturn -EINVAL;\n+\n+\t/* get the pool */\n+\tgpool = octeontx_fpa_bufpool_gpool(handle);\n+\n+\t/* Get pool bar address from handle */\n+\tpool_bar = handle & ~(uint64_t)FPA_GPOOL_MASK;\n+\n+\t /* Check for no outstanding buffers */\n+\tcnt = fpavf_read64((void *)((uintptr_t)pool_bar +\n+\t\t\t\t\tFPA_VF_VHAURA_CNT(gpool)));\n+\tif (cnt) {\n+\t\tfpavf_log_dbg(\"buffer exist in pool cnt %ld\\n\", cnt);\n+\t\treturn -EBUSY;\n+\t}\n+\n+\trte_spinlock_lock(&fpadev.lock);\n+\n+\tavail = fpavf_read64((void *)((uintptr_t)pool_bar +\n+\t\t\t\tFPA_VF_VHPOOL_AVAILABLE(gpool)));\n+\n+\t/* Prepare to empty the entire POOL */\n+\tfpavf_write64(avail, (void *)((uintptr_t)pool_bar +\n+\t\t\t FPA_VF_VHAURA_CNT_LIMIT(gpool)));\n+\tfpavf_write64(avail + 1, (void *)((uintptr_t)pool_bar +\n+\t\t\t FPA_VF_VHAURA_CNT_THRESHOLD(gpool)));\n+\n+\t/* Empty the pool */\n+\t/* Invalidate the POOL */\n+\tocteontx_gpool_free(gpool);\n+\n+\t/* Process all buffers in the pool */\n+\twhile (avail--) {\n+\n+\t\t/* Yank a buffer from the pool */\n+\t\tnode = (void *)(uintptr_t)\n+\t\t\tfpavf_read64((void *)\n+\t\t\t\t    (pool_bar + FPA_VF_VHAURA_OP_ALLOC(gpool)));\n+\n+\t\tif (node == NULL) {\n+\t\t\tfpavf_log_err(\"GAURA[%u] missing %\" PRIx64 \" buf\\n\",\n+\t\t\t\t      gpool, avail);\n+\t\t\tbreak;\n+\t\t}\n+\n+\t\t/* Imsert it into an ordered linked list */\n+\t\tfor (curr = &head; curr[0] != NULL; curr = curr[0]) {\n+\t\t\tif ((uintptr_t)node <= (uintptr_t)curr[0])\n+\t\t\t\tbreak;\n+\t\t}\n+\t\tnode[0] = curr[0];\n+\t\tcurr[0] = node;\n+\t}\n+\n+\t/* Verify the linked list to be a perfect series */\n+\tsz = octeontx_fpa_bufpool_block_size(handle) << 7;\n+\tfor (curr = head; curr != NULL && curr[0] != NULL;\n+\t\tcurr = curr[0]) {\n+\t\tif (curr == curr[0] ||\n+\t\t\t((uintptr_t)curr != ((uintptr_t)curr[0] - sz))) {\n+\t\t\tfpavf_log_err(\"POOL# %u buf sequence err (%p vs. %p)\\n\",\n+\t\t\t\t      gpool, curr, curr[0]);\n+\t\t}\n+\t}\n+\n+\t/* Disable pool operation */\n+\tfpavf_write64(~0ul, (void *)((uintptr_t)pool_bar +\n+\t\t\t FPA_VF_VHPOOL_START_ADDR(gpool)));\n+\tfpavf_write64(~0ul, (void *)((uintptr_t)pool_bar +\n+\t\t\tFPA_VF_VHPOOL_END_ADDR(gpool)));\n+\n+\t(void)octeontx_fpapf_pool_destroy(gpool);\n+\n+\t/* Deactivate the AURA */\n+\tfpavf_write64(0, (void *)((uintptr_t)pool_bar +\n+\t\t\tFPA_VF_VHAURA_CNT_LIMIT(gpool)));\n+\tfpavf_write64(0, (void *)((uintptr_t)pool_bar +\n+\t\t\tFPA_VF_VHAURA_CNT_THRESHOLD(gpool)));\n+\n+\tret = octeontx_fpapf_aura_detach(gpool);\n+\tif (ret) {\n+\t\tfpavf_log_err(\"Failed to dettach gaura %u. error code=%d\\n\",\n+\t\t\t      gpool, ret);\n+\t}\n+\n+\t/* Free VF */\n+\t(void)octeontx_fpavf_free(gpool);\n+\n+\trte_spinlock_unlock(&fpadev.lock);\n+\treturn 0;\n+}\n+\n static void\n octeontx_fpavf_setup(void)\n {\ndiff --git a/drivers/mempool/octeontx/octeontx_fpavf.h b/drivers/mempool/octeontx/octeontx_fpavf.h\nindex 23a458363..28440e810 100644\n--- a/drivers/mempool/octeontx/octeontx_fpavf.h\n+++ b/drivers/mempool/octeontx/octeontx_fpavf.h\n@@ -136,6 +136,8 @@ octeontx_fpa_bufpool_create(unsigned int object_size, unsigned int object_count,\n \t\t\t\tunsigned int buf_offset, char **va_start,\n \t\t\t\tint node);\n int\n+octeontx_fpa_bufpool_destroy(uintptr_t handle, int node);\n+int\n octeontx_fpa_bufpool_block_size(uintptr_t handle);\n \n static __rte_always_inline uint8_t\ndiff --git a/drivers/mempool/octeontx/rte_mempool_octeontx.c b/drivers/mempool/octeontx/rte_mempool_octeontx.c\nindex 73648aa7f..6754a78c0 100644\n--- a/drivers/mempool/octeontx/rte_mempool_octeontx.c\n+++ b/drivers/mempool/octeontx/rte_mempool_octeontx.c\n@@ -74,10 +74,20 @@ octeontx_fpavf_alloc(struct rte_mempool *mp)\n \treturn rc;\n }\n \n+static void\n+octeontx_fpavf_free(struct rte_mempool *mp)\n+{\n+\tuintptr_t pool;\n+\n+\tpool = (uintptr_t)mp->pool_id;\n+\n+\tocteontx_fpa_bufpool_destroy(pool, mp->socket_id);\n+}\n+\n static struct rte_mempool_ops octeontx_fpavf_ops = {\n \t.name = \"octeontx_fpavf\",\n \t.alloc = octeontx_fpavf_alloc,\n-\t.free = NULL,\n+\t.free = octeontx_fpavf_free,\n \t.enqueue = NULL,\n \t.dequeue = NULL,\n \t.get_count = NULL,\n",
    "prefixes": [
        "dpdk-dev",
        "v2",
        "05/10"
    ]
}