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linux/drivers/net/ethernet/microchip/sparx5/sparx5_vcap_debugfs.c
Steen Hegelund d4134d41e3 net: microchip: sparx5: Add raw VCAP debugFS support for the VCAP API 
This adds support for decoding VCAP rules with a minimum number of
attributes: address, rule size and keyset.

This allows for a quick inspection of a VCAP instance to determine if the
rule are present and in the correct order.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-21 11:33:02 +00:00

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// SPDX-License-Identifier: GPL-2.0+
/* Microchip Sparx5 Switch driver VCAP debugFS implementation
*
* Copyright (c) 2022 Microchip Technology Inc. and its subsidiaries.
*/
#include <linux/types.h>
#include <linux/list.h>
#include "sparx5_vcap_debugfs.h"
#include "sparx5_main_regs.h"
#include "sparx5_main.h"
#include "sparx5_vcap_impl.h"
#include "sparx5_vcap_ag_api.h"
static void sparx5_vcap_port_keys(struct sparx5 *sparx5,
struct vcap_admin *admin,
struct sparx5_port *port,
struct vcap_output_print *out)
{
int lookup;
u32 value;
out->prf(out->dst, " port[%02d] (%s): ", port->portno,
netdev_name(port->ndev));
for (lookup = 0; lookup < admin->lookups; ++lookup) {
out->prf(out->dst, "\n Lookup %d: ", lookup);
/* Get lookup state */
value = spx5_rd(sparx5, ANA_ACL_VCAP_S2_CFG(port->portno));
out->prf(out->dst, "\n state: ");
if (ANA_ACL_VCAP_S2_CFG_SEC_ENA_GET(value))
out->prf(out->dst, "on");
else
out->prf(out->dst, "off");
/* Get key selection state */
value = spx5_rd(sparx5,
ANA_ACL_VCAP_S2_KEY_SEL(port->portno, lookup));
out->prf(out->dst, "\n noneth: ");
switch (ANA_ACL_VCAP_S2_KEY_SEL_NON_ETH_KEY_SEL_GET(value)) {
case VCAP_IS2_PS_NONETH_MAC_ETYPE:
out->prf(out->dst, "mac_etype");
break;
case VCAP_IS2_PS_NONETH_CUSTOM_1:
out->prf(out->dst, "custom1");
break;
case VCAP_IS2_PS_NONETH_CUSTOM_2:
out->prf(out->dst, "custom2");
break;
case VCAP_IS2_PS_NONETH_NO_LOOKUP:
out->prf(out->dst, "none");
break;
}
out->prf(out->dst, "\n ipv4_mc: ");
switch (ANA_ACL_VCAP_S2_KEY_SEL_IP4_MC_KEY_SEL_GET(value)) {
case VCAP_IS2_PS_IPV4_MC_MAC_ETYPE:
out->prf(out->dst, "mac_etype");
break;
case VCAP_IS2_PS_IPV4_MC_IP4_TCP_UDP_OTHER:
out->prf(out->dst, "ip4_tcp_udp ip4_other");
break;
case VCAP_IS2_PS_IPV4_MC_IP_7TUPLE:
out->prf(out->dst, "ip_7tuple");
break;
case VCAP_IS2_PS_IPV4_MC_IP4_VID:
out->prf(out->dst, "ip4_vid");
break;
}
out->prf(out->dst, "\n ipv4_uc: ");
switch (ANA_ACL_VCAP_S2_KEY_SEL_IP4_UC_KEY_SEL_GET(value)) {
case VCAP_IS2_PS_IPV4_UC_MAC_ETYPE:
out->prf(out->dst, "mac_etype");
break;
case VCAP_IS2_PS_IPV4_UC_IP4_TCP_UDP_OTHER:
out->prf(out->dst, "ip4_tcp_udp ip4_other");
break;
case VCAP_IS2_PS_IPV4_UC_IP_7TUPLE:
out->prf(out->dst, "ip_7tuple");
break;
}
out->prf(out->dst, "\n ipv6_mc: ");
switch (ANA_ACL_VCAP_S2_KEY_SEL_IP6_MC_KEY_SEL_GET(value)) {
case VCAP_IS2_PS_IPV6_MC_MAC_ETYPE:
out->prf(out->dst, "mac_etype");
break;
case VCAP_IS2_PS_IPV6_MC_IP_7TUPLE:
out->prf(out->dst, "ip_7tuple");
break;
case VCAP_IS2_PS_IPV6_MC_IP6_VID:
out->prf(out->dst, "ip6_vid");
break;
case VCAP_IS2_PS_IPV6_MC_IP6_STD:
out->prf(out->dst, "ip6_std");
break;
case VCAP_IS2_PS_IPV6_MC_IP4_TCP_UDP_OTHER:
out->prf(out->dst, "ip4_tcp_udp ipv4_other");
break;
}
out->prf(out->dst, "\n ipv6_uc: ");
switch (ANA_ACL_VCAP_S2_KEY_SEL_IP6_UC_KEY_SEL_GET(value)) {
case VCAP_IS2_PS_IPV6_UC_MAC_ETYPE:
out->prf(out->dst, "mac_etype");
break;
case VCAP_IS2_PS_IPV6_UC_IP_7TUPLE:
out->prf(out->dst, "ip_7tuple");
break;
case VCAP_IS2_PS_IPV6_UC_IP6_STD:
out->prf(out->dst, "ip6_std");
break;
case VCAP_IS2_PS_IPV6_UC_IP4_TCP_UDP_OTHER:
out->prf(out->dst, "ip4_tcp_udp ip4_other");
break;
}
out->prf(out->dst, "\n arp: ");
switch (ANA_ACL_VCAP_S2_KEY_SEL_ARP_KEY_SEL_GET(value)) {
case VCAP_IS2_PS_ARP_MAC_ETYPE:
out->prf(out->dst, "mac_etype");
break;
case VCAP_IS2_PS_ARP_ARP:
out->prf(out->dst, "arp");
break;
}
}
out->prf(out->dst, "\n");
}
static void sparx5_vcap_port_stickies(struct sparx5 *sparx5,
struct vcap_admin *admin,
struct vcap_output_print *out)
{
int lookup;
u32 value;
out->prf(out->dst, " Sticky bits: ");
for (lookup = 0; lookup < admin->lookups; ++lookup) {
out->prf(out->dst, "\n Lookup %d: ", lookup);
/* Get lookup sticky bits */
value = spx5_rd(sparx5, ANA_ACL_SEC_LOOKUP_STICKY(lookup));
if (ANA_ACL_SEC_LOOKUP_STICKY_KEY_SEL_CLM_STICKY_GET(value))
out->prf(out->dst, " sel_clm");
if (ANA_ACL_SEC_LOOKUP_STICKY_KEY_SEL_IRLEG_STICKY_GET(value))
out->prf(out->dst, " sel_irleg");
if (ANA_ACL_SEC_LOOKUP_STICKY_KEY_SEL_ERLEG_STICKY_GET(value))
out->prf(out->dst, " sel_erleg");
if (ANA_ACL_SEC_LOOKUP_STICKY_KEY_SEL_PORT_STICKY_GET(value))
out->prf(out->dst, " sel_port");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_CUSTOM2_STICKY_GET(value))
out->prf(out->dst, " custom2");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_CUSTOM1_STICKY_GET(value))
out->prf(out->dst, " custom1");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_OAM_STICKY_GET(value))
out->prf(out->dst, " oam");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_IP6_VID_STICKY_GET(value))
out->prf(out->dst, " ip6_vid");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_IP6_STD_STICKY_GET(value))
out->prf(out->dst, " ip6_std");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_IP6_TCPUDP_STICKY_GET(value))
out->prf(out->dst, " ip6_tcpudp");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_IP_7TUPLE_STICKY_GET(value))
out->prf(out->dst, " ip_7tuple");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_IP4_VID_STICKY_GET(value))
out->prf(out->dst, " ip4_vid");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_IP4_TCPUDP_STICKY_GET(value))
out->prf(out->dst, " ip4_tcpudp");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_IP4_OTHER_STICKY_GET(value))
out->prf(out->dst, " ip4_other");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_ARP_STICKY_GET(value))
out->prf(out->dst, " arp");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_MAC_SNAP_STICKY_GET(value))
out->prf(out->dst, " mac_snap");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_MAC_LLC_STICKY_GET(value))
out->prf(out->dst, " mac_llc");
if (ANA_ACL_SEC_LOOKUP_STICKY_SEC_TYPE_MAC_ETYPE_STICKY_GET(value))
out->prf(out->dst, " mac_etype");
/* Clear stickies */
spx5_wr(value, sparx5, ANA_ACL_SEC_LOOKUP_STICKY(lookup));
}
out->prf(out->dst, "\n");
}
/* Provide port information via a callback interface */
int sparx5_port_info(struct net_device *ndev,
struct vcap_admin *admin,
struct vcap_output_print *out)
{
struct sparx5_port *port = netdev_priv(ndev);
struct sparx5 *sparx5 = port->sparx5;
const struct vcap_info *vcap;
struct vcap_control *vctrl;
vctrl = sparx5->vcap_ctrl;
vcap = &vctrl->vcaps[admin->vtype];
out->prf(out->dst, "%s:\n", vcap->name);
sparx5_vcap_port_keys(sparx5, admin, port, out);
sparx5_vcap_port_stickies(sparx5, admin, out);
return 0;
}
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