From: Satha Rao Date: Wed, 23 Jun 2021 04:46:52 +0000 (+0530) Subject: net/cnxk: support registers dump X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=48a882afd871335ed093da43a31cff19c52b0f7d;p=dpdk.git net/cnxk: support registers dump With this patch implemented api to dump platform registers for debug purposes. Signed-off-by: Satha Rao --- diff --git a/doc/guides/nics/cnxk.rst b/doc/guides/nics/cnxk.rst index bdf1fb122c..cb2a51e1d2 100644 --- a/doc/guides/nics/cnxk.rst +++ b/doc/guides/nics/cnxk.rst @@ -32,6 +32,7 @@ Features of the CNXK Ethdev PMD are: - MTU update - Scatter-Gather IO support - Vector Poll mode driver +- Debug utilities - Context dump and error interrupt support - Support Rx interrupt Prerequisites diff --git a/doc/guides/nics/features/cnxk.ini b/doc/guides/nics/features/cnxk.ini index 08776e0eb9..53187bd395 100644 --- a/doc/guides/nics/features/cnxk.ini +++ b/doc/guides/nics/features/cnxk.ini @@ -37,6 +37,7 @@ Stats per queue = Y Extended stats = Y FW version = Y Module EEPROM dump = Y +Registers dump = Y Linux = Y ARMv8 = Y Usage doc = Y diff --git a/doc/guides/nics/features/cnxk_vec.ini b/doc/guides/nics/features/cnxk_vec.ini index bafe0506f8..705c44cef8 100644 --- a/doc/guides/nics/features/cnxk_vec.ini +++ b/doc/guides/nics/features/cnxk_vec.ini @@ -35,6 +35,7 @@ Stats per queue = Y Extended stats = Y FW version = Y Module EEPROM dump = Y +Registers dump = Y Linux = Y ARMv8 = Y Usage doc = Y diff --git a/doc/guides/nics/features/cnxk_vf.ini b/doc/guides/nics/features/cnxk_vf.ini index 9d49175d8a..00cf5c96e5 100644 --- a/doc/guides/nics/features/cnxk_vf.ini +++ b/doc/guides/nics/features/cnxk_vf.ini @@ -32,6 +32,7 @@ Stats per queue = Y Extended stats = Y FW version = Y Module EEPROM dump = Y +Registers dump = Y Linux = Y ARMv8 = Y Usage doc = Y diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c index 26e4ddf9b0..b76442dfe4 100644 --- a/drivers/net/cnxk/cnxk_ethdev.c +++ b/drivers/net/cnxk/cnxk_ethdev.c @@ -1227,6 +1227,7 @@ struct eth_dev_ops cnxk_eth_dev_ops = { .txq_info_get = cnxk_nix_txq_info_get, .tx_done_cleanup = cnxk_nix_tx_done_cleanup, .flow_ops_get = cnxk_nix_flow_ops_get, + .get_reg = cnxk_nix_dev_get_reg, }; static int diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h index a25be8aa37..d51a6d7053 100644 --- a/drivers/net/cnxk/cnxk_ethdev.h +++ b/drivers/net/cnxk/cnxk_ethdev.h @@ -328,6 +328,10 @@ void *cnxk_nix_fastpath_lookup_mem_get(void); int cnxk_ethdev_parse_devargs(struct rte_devargs *devargs, struct cnxk_eth_dev *dev); +/* Debug */ +int cnxk_nix_dev_get_reg(struct rte_eth_dev *eth_dev, + struct rte_dev_reg_info *regs); + /* Inlines */ static __rte_always_inline uint64_t cnxk_pktmbuf_detach(struct rte_mbuf *m) diff --git a/drivers/net/cnxk/cnxk_ethdev_ops.c b/drivers/net/cnxk/cnxk_ethdev_ops.c index 228c624da8..c879b2585e 100644 --- a/drivers/net/cnxk/cnxk_ethdev_ops.c +++ b/drivers/net/cnxk/cnxk_ethdev_ops.c @@ -697,3 +697,28 @@ cnxk_nix_tx_done_cleanup(void *txq, uint32_t free_cnt) return 0; } + +int +cnxk_nix_dev_get_reg(struct rte_eth_dev *eth_dev, struct rte_dev_reg_info *regs) +{ + struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev); + struct roc_nix *nix = &dev->nix; + uint64_t *data = regs->data; + int rc = -ENOTSUP; + + if (data == NULL) { + rc = roc_nix_lf_get_reg_count(nix); + if (rc > 0) { + regs->length = rc; + regs->width = 8; + rc = 0; + } + return rc; + } + + if (!regs->length || + regs->length == (uint32_t)roc_nix_lf_get_reg_count(nix)) + return roc_nix_lf_reg_dump(nix, data); + + return rc; +}