diff mbox series

[net-next,2/4] net: microchip: vcap: Add vcap_mod_rule

Message ID 20221130143525.934906-3-horatiu.vultur@microchip.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: lan966x: Enable PTP on bridge interfaces | expand

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Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 2 this patch: 2
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang success Errors and warnings before: 5 this patch: 5
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 2 this patch: 2
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 50 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Horatiu Vultur Nov. 30, 2022, 2:35 p.m. UTC
Add the function vcap_mod_rule which allows to update an existing rule
in the vcap. It is required for the rule to exist in the vcap to be able
to modify it.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
 .../net/ethernet/microchip/vcap/vcap_api.c    | 36 +++++++++++++++++++
 .../ethernet/microchip/vcap/vcap_api_client.h |  2 ++
 2 files changed, 38 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api.c b/drivers/net/ethernet/microchip/vcap/vcap_api.c
index 27128313f15f1..eae4e9fe0e147 100644
--- a/drivers/net/ethernet/microchip/vcap/vcap_api.c
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api.c
@@ -1955,6 +1955,42 @@  struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)
 }
 EXPORT_SYMBOL_GPL(vcap_get_rule);
 
+/* Update existing rule */
+int vcap_mod_rule(struct vcap_rule *rule)
+{
+	struct vcap_rule_internal *ri = to_intrule(rule);
+	struct vcap_counter ctr;
+	int err;
+
+	err = vcap_api_check(ri->vctrl);
+	if (err)
+		return err;
+
+	if (!vcap_lookup_rule(ri->vctrl, ri->data.id))
+		return -ENOENT;
+
+	mutex_lock(&ri->admin->lock);
+	/* Encode the bitstreams to the VCAP cache */
+	vcap_erase_cache(ri);
+	err = vcap_encode_rule(ri);
+	if (err)
+		goto out;
+
+	err = vcap_write_rule(ri);
+	if (err)
+		goto out;
+
+	memset(&ctr, 0, sizeof(ctr));
+	err =  vcap_write_counter(ri, &ctr);
+	if (err)
+		goto out;
+
+out:
+	mutex_unlock(&ri->admin->lock);
+	return err;
+}
+EXPORT_SYMBOL_GPL(vcap_mod_rule);
+
 /* Return the alignment offset for a new rule address */
 static int vcap_valid_rule_move(struct vcap_rule_internal *el, int offset)
 {
diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api_client.h b/drivers/net/ethernet/microchip/vcap/vcap_api_client.h
index a354dcd741e22..fdfc5d58813bb 100644
--- a/drivers/net/ethernet/microchip/vcap/vcap_api_client.h
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api_client.h
@@ -172,6 +172,8 @@  int vcap_del_rule(struct vcap_control *vctrl, struct net_device *ndev, u32 id);
 struct vcap_rule *vcap_copy_rule(struct vcap_rule *rule);
 /* Get rule from a VCAP instance */
 struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id);
+/* Update existing rule */
+int vcap_mod_rule(struct vcap_rule *rule);
 
 /* Update the keyset for the rule */
 int vcap_set_rule_set_keyset(struct vcap_rule *rule,