[PATCH v2 18/22] common/cnxk: add FEC configuration support

[Rahul Bhansali]

From: Rakesh Kudurumalla <rkudurumalla at marvell.com>

Add ROC APIs for Forward Error Correction (FEC) configuration:
- roc_nix_mac_fec_set: Set FEC mode on the link
- roc_nix_mac_fec_supported_get: Query supported FEC modes
  from firmware

These APIs use CGX mailbox messages to configure and query
FEC parameters on PF interfaces.

Signed-off-by: Rakesh Kudurumalla <rkudurumalla at marvell.com>
---
Changes in v2: No change.

 drivers/common/cnxk/roc_nix.h                 |  2 +
 drivers/common/cnxk/roc_nix_mac.c             | 52 ++++++++++++++++++-
 .../common/cnxk/roc_platform_base_symbols.c   |  2 +
 3 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/drivers/common/cnxk/roc_nix.h b/drivers/common/cnxk/roc_nix.h
index 49ede85f9a..802519f5e8 100644
--- a/drivers/common/cnxk/roc_nix.h
+++ b/drivers/common/cnxk/roc_nix.h
@@ -975,6 +975,8 @@ int __roc_api roc_nix_mac_link_info_set(struct roc_nix *roc_nix,
 					struct roc_nix_link_info *link_info);
 int __roc_api roc_nix_mac_link_info_get(struct roc_nix *roc_nix,
 					struct roc_nix_link_info *link_info);
+int __roc_api roc_nix_mac_fec_set(struct roc_nix *roc_nix, int fec);
+int __roc_api roc_nix_mac_fec_supported_get(struct roc_nix *roc_nix, uint64_t *supported_fec);
 int __roc_api roc_nix_mac_mtu_set(struct roc_nix *roc_nix, uint16_t mtu);
 int __roc_api roc_nix_mac_max_rx_len_set(struct roc_nix *roc_nix,
 					 uint16_t maxlen);
diff --git a/drivers/common/cnxk/roc_nix_mac.c b/drivers/common/cnxk/roc_nix_mac.c
index 376ff48522..9440cad33d 100644
--- a/drivers/common/cnxk/roc_nix_mac.c
+++ b/drivers/common/cnxk/roc_nix_mac.c
@@ -257,6 +257,57 @@ roc_nix_mac_link_state_set(struct roc_nix *roc_nix, uint8_t up)
 	return rc;
 }

+int
+roc_nix_mac_fec_set(struct roc_nix *roc_nix, int fec)
+{
+	struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+	struct dev *dev = &nix->dev;
+	struct mbox *mbox = mbox_get(dev->mbox);
+	struct fec_mode *req;
+	int rc = -ENOSPC;
+
+	if (roc_nix_is_vf_or_sdp(roc_nix)) {
+		rc = NIX_ERR_OP_NOTSUP;
+		goto exit;
+	}
+
+	req = mbox_alloc_msg_cgx_set_fec_param(mbox);
+	if (req == NULL)
+		goto exit;
+	req->fec = fec;
+
+	rc = mbox_process(mbox);
+exit:
+	mbox_put(mbox);
+	return rc;
+}
+
+int
+roc_nix_mac_fec_supported_get(struct roc_nix *roc_nix, uint64_t *supported_fec)
+{
+	struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+	struct dev *dev = &nix->dev;
+	struct mbox *mbox = mbox_get(dev->mbox);
+	struct cgx_fw_data *rsp = NULL;
+	int rc;
+
+	if (roc_nix_is_vf_or_sdp(roc_nix)) {
+		rc = NIX_ERR_OP_NOTSUP;
+		goto exit;
+	}
+
+	mbox_alloc_msg_cgx_get_aux_link_info(mbox);
+	rc = mbox_process_msg(mbox, (void *)&rsp);
+	if (rc)
+		goto exit;
+
+	*supported_fec = rsp->fwdata.supported_fec;
+	rc = 0;
+exit:
+	mbox_put(mbox);
+	return rc;
+}
+
 int
 roc_nix_mac_link_info_set(struct roc_nix *roc_nix,
 			  struct roc_nix_link_info *link_info)
@@ -283,7 +334,6 @@ roc_nix_mac_link_info_set(struct roc_nix *roc_nix,
 exit:
 	mbox_put(mbox);
 	return rc;
-
 }

 int
diff --git a/drivers/common/cnxk/roc_platform_base_symbols.c b/drivers/common/cnxk/roc_platform_base_symbols.c
index d1c9f2304d..ffae154788 100644
--- a/drivers/common/cnxk/roc_platform_base_symbols.c
+++ b/drivers/common/cnxk/roc_platform_base_symbols.c
@@ -316,6 +316,8 @@ RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_link_state_set)
 RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_link_info_set)
 RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_mtu_set)
 RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_max_rx_len_set)
+RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_fec_set)
+RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_fec_supported_get)
 RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_stats_reset)
 RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_fwdata_get)
 RTE_EXPORT_INTERNAL_SYMBOL(roc_nix_mac_link_cb_register)
--
2.34.1