net/cnxk: support registers dump

With this patch implemented api to dump platform registers for
debug purposes.

Signed-off-by: Satha Rao <skoteshwar@marvell.com>

diff --git a/doc/guides/nics/cnxk.rst b/doc/guides/nics/cnxk.rst
index bdf1fb122c7d27c61a3441c43dc451f44481ebc4..cb2a51e1d255dede7a443f4a59ec7d1ae1501109 100644 (file)
--- 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 08776e0eb9f97a476ae2f5f82f0e9a1f62d7660a..53187bd395fa40b8144643ded611ea68e138ffb0 100644 (file)
--- 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 bafe0506f85a477f1204bc602855c3cf1a4bd611..705c44cef87f906e5813ab37d9ef201737db6da4 100644 (file)
--- 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 9d49175d8ad823ccbde9f44c0ac006543ef02947..00cf5c96e5914b4dca2824d2ea76ef932eb2bf2e 100644 (file)
--- 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 26e4ddf9b05ffa602d554fefe2350c9e3eb82382..b76442dfe4d4ffe172a99d480c4ae52a8de27ddc 100644 (file)
--- 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 a25be8aa379af88b6a35351c7c5d234a520e6517..d51a6d7053adfd794f609655fa370d090307a009 100644 (file)
--- 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 228c624da88d1070ef436ecab98bc0378d6f9675..c879b2585e6e4e76d9f27aab63c987aaf52a6d5c 100644 (file)
--- 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;
+}