mempool/cnxk: add device probe/remove
Add the implementation for CNXk mempool device probe and remove. Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com> Signed-off-by: Ashwin Sekhar T K <asekhar@marvell.com>
This commit is contained in:
Ashwin Sekhar T K
Jerin Jacob
parent
2da3159197
commit
0a50a5aad2
@ -30,6 +30,29 @@ Pre-Installation Configuration
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------------------------------
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Runtime Config Options
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~~~~~~~~~~~~~~~~~~~~~~
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- ``Maximum number of mempools per application`` (default ``128``)
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The maximum number of mempools per application needs to be configured on
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HW during mempool driver initialization. HW can support up to 1M mempools,
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Since each mempool costs set of HW resources, the ``max_pools`` ``devargs``
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parameter is being introduced to configure the number of mempools required
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for the application.
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For example::
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-a 0002:02:00.0,max_pools=512
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With the above configuration, the driver will set up only 512 mempools for
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the given application to save HW resources.
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.. note::
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Since this configuration is per application, the end user needs to
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provide ``max_pools`` parameter to the first PCIe device probed by the given
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application.
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Debugging Options
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~~~~~~~~~~~~~~~~~
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@ -15,21 +15,143 @@
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#include "roc_api.h"
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static int
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npa_remove(struct rte_pci_device *pci_dev)
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#define CNXK_NPA_DEV_NAME RTE_STR(cnxk_npa_dev_)
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#define CNXK_NPA_DEV_NAME_LEN (sizeof(CNXK_NPA_DEV_NAME) + PCI_PRI_STR_SIZE)
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#define CNXK_NPA_MAX_POOLS_PARAM "max_pools"
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static inline uint32_t
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npa_aura_size_to_u32(uint8_t val)
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{
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RTE_SET_USED(pci_dev);
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if (val == NPA_AURA_SZ_0)
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return 128;
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if (val >= NPA_AURA_SZ_MAX)
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return BIT_ULL(20);
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return 1 << (val + 6);
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}
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static int
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parse_max_pools(const char *key, const char *value, void *extra_args)
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{
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RTE_SET_USED(key);
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uint32_t val;
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val = atoi(value);
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if (val < npa_aura_size_to_u32(NPA_AURA_SZ_128))
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val = 128;
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if (val > npa_aura_size_to_u32(NPA_AURA_SZ_1M))
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val = BIT_ULL(20);
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*(uint8_t *)extra_args = rte_log2_u32(val) - 6;
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return 0;
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}
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static inline uint8_t
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parse_aura_size(struct rte_devargs *devargs)
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{
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uint8_t aura_sz = NPA_AURA_SZ_128;
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struct rte_kvargs *kvlist;
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if (devargs == NULL)
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goto exit;
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kvlist = rte_kvargs_parse(devargs->args, NULL);
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if (kvlist == NULL)
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goto exit;
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rte_kvargs_process(kvlist, CNXK_NPA_MAX_POOLS_PARAM, &parse_max_pools,
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&aura_sz);
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rte_kvargs_free(kvlist);
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exit:
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return aura_sz;
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}
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static inline char *
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npa_dev_to_name(struct rte_pci_device *pci_dev, char *name)
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{
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snprintf(name, CNXK_NPA_DEV_NAME_LEN, CNXK_NPA_DEV_NAME PCI_PRI_FMT,
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pci_dev->addr.domain, pci_dev->addr.bus, pci_dev->addr.devid,
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pci_dev->addr.function);
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return name;
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}
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static int
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npa_init(struct rte_pci_device *pci_dev)
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{
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char name[CNXK_NPA_DEV_NAME_LEN];
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const struct rte_memzone *mz;
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struct roc_npa *dev;
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int rc = -ENOMEM;
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mz = rte_memzone_reserve_aligned(npa_dev_to_name(pci_dev, name),
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sizeof(*dev), SOCKET_ID_ANY, 0,
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RTE_CACHE_LINE_SIZE);
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if (mz == NULL)
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goto error;
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dev = mz->addr;
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dev->pci_dev = pci_dev;
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roc_idev_npa_maxpools_set(parse_aura_size(pci_dev->device.devargs));
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rc = roc_npa_dev_init(dev);
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if (rc)
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goto mz_free;
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return 0;
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mz_free:
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rte_memzone_free(mz);
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error:
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plt_err("failed to initialize npa device rc=%d", rc);
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return rc;
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}
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static int
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npa_fini(struct rte_pci_device *pci_dev)
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{
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char name[CNXK_NPA_DEV_NAME_LEN];
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const struct rte_memzone *mz;
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int rc;
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mz = rte_memzone_lookup(npa_dev_to_name(pci_dev, name));
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if (mz == NULL)
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return -EINVAL;
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rc = roc_npa_dev_fini(mz->addr);
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if (rc) {
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if (rc != -EAGAIN)
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plt_err("Failed to remove npa dev, rc=%d", rc);
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return rc;
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}
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rte_memzone_free(mz);
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return 0;
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}
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static int
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npa_remove(struct rte_pci_device *pci_dev)
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{
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if (rte_eal_process_type() != RTE_PROC_PRIMARY)
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return 0;
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return npa_fini(pci_dev);
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}
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static int
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npa_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
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{
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RTE_SET_USED(pci_drv);
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RTE_SET_USED(pci_dev);
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int rc;
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return 0;
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RTE_SET_USED(pci_drv);
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rc = roc_plt_init();
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if (rc < 0)
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return rc;
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if (rte_eal_process_type() != RTE_PROC_PRIMARY)
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return 0;
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return npa_init(pci_dev);
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}
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static const struct rte_pci_id npa_pci_map[] = {
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@ -76,3 +198,5 @@ static struct rte_pci_driver npa_pci = {
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RTE_PMD_REGISTER_PCI(mempool_cnxk, npa_pci);
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RTE_PMD_REGISTER_PCI_TABLE(mempool_cnxk, npa_pci_map);
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RTE_PMD_REGISTER_KMOD_DEP(mempool_cnxk, "vfio-pci");
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RTE_PMD_REGISTER_PARAM_STRING(mempool_cnxk,
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CNXK_NPA_MAX_POOLS_PARAM "=<128-1048576>");
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