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octeontx2-af: Debugfs support for DMAC filters

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Add debugfs support to display CGX/RPM DMAC filter
table associated with pf.

cat /sys/kernel/debug/octeontx2/cgx/cgx0/lmac0/mac_filter

PCI dev       RVUPF  BROADCAST  MULTICAST  FILTER-MODE
0002:02:00.0  PF2    ACCEPT     ACCEPT     UNICAST

DMAC-INDEX  ADDRESS
      0     00:0f:b7:06:17:06
      1     1a:1b:1c:1d:1e:01
      2     1a:1b:1c:1d:1e:02

Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hariprasad Kelam
2021-06-30 15:40:58 +05:30
committed by David S. Miller
parent 6f14078e3e
commit dbc52debf9
5 changed files with 113 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

88
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
View File

@@ -1971,10 +1971,9 @@ static int cgx_print_stats(struct seq_file *s, int lmac_id)
return err;
}
static int rvu_dbg_cgx_stat_display(struct seq_file *filp, void *unused)
static int rvu_dbg_derive_lmacid(struct seq_file *filp, int *lmac_id)
{
struct dentry *current_dir;
int err, lmac_id;
char *buf;
current_dir = filp->file->f_path.dentry->d_parent;
@@ -1982,17 +1981,87 @@ static int rvu_dbg_cgx_stat_display(struct seq_file *filp, void *unused)
if (!buf)
return -EINVAL;
err = kstrtoint(buf + 1, 10, &lmac_id);
if (!err) {
err = cgx_print_stats(filp, lmac_id);
if (err)
return err;
}
return kstrtoint(buf + 1, 10, lmac_id);
}
static int rvu_dbg_cgx_stat_display(struct seq_file *filp, void *unused)
{
int lmac_id, err;
err = rvu_dbg_derive_lmacid(filp, &lmac_id);
if (!err)
return cgx_print_stats(filp, lmac_id);
return err;
}
RVU_DEBUG_SEQ_FOPS(cgx_stat, cgx_stat_display, NULL);
static int cgx_print_dmac_flt(struct seq_file *s, int lmac_id)
{
struct pci_dev *pdev = NULL;
void *cgxd = s->private;
char *bcast, *mcast;
u16 index, domain;
u8 dmac[ETH_ALEN];
struct rvu *rvu;
u64 cfg, mac;
int pf;
rvu = pci_get_drvdata(pci_get_device(PCI_VENDOR_ID_CAVIUM,
PCI_DEVID_OCTEONTX2_RVU_AF, NULL));
if (!rvu)
return -ENODEV;
pf = cgxlmac_to_pf(rvu, cgx_get_cgxid(cgxd), lmac_id);
domain = 2;
pdev = pci_get_domain_bus_and_slot(domain, pf + 1, 0);
if (!pdev)
return 0;
cfg = cgx_read_dmac_ctrl(cgxd, lmac_id);
bcast = cfg & CGX_DMAC_BCAST_MODE ? "ACCEPT" : "REJECT";
mcast = cfg & CGX_DMAC_MCAST_MODE ? "ACCEPT" : "REJECT";
seq_puts(s,
"PCI dev RVUPF BROADCAST MULTICAST FILTER-MODE\n");
seq_printf(s, "%s PF%d %9s %9s",
dev_name(&pdev->dev), pf, bcast, mcast);
if (cfg & CGX_DMAC_CAM_ACCEPT)
seq_printf(s, "%12s\n\n", "UNICAST");
else
seq_printf(s, "%16s\n\n", "PROMISCUOUS");
seq_puts(s, "\nDMAC-INDEX ADDRESS\n");
for (index = 0 ; index < 32 ; index++) {
cfg = cgx_read_dmac_entry(cgxd, index);
/* Display enabled dmac entries associated with current lmac */
if (lmac_id == FIELD_GET(CGX_DMAC_CAM_ENTRY_LMACID, cfg) &&
FIELD_GET(CGX_DMAC_CAM_ADDR_ENABLE, cfg)) {
mac = FIELD_GET(CGX_RX_DMAC_ADR_MASK, cfg);
u64_to_ether_addr(mac, dmac);
seq_printf(s, "%7d %pM\n", index, dmac);
}
}
return 0;
}
static int rvu_dbg_cgx_dmac_flt_display(struct seq_file *filp, void *unused)
{
int err, lmac_id;
err = rvu_dbg_derive_lmacid(filp, &lmac_id);
if (!err)
return cgx_print_dmac_flt(filp, lmac_id);
return err;
}
RVU_DEBUG_SEQ_FOPS(cgx_dmac_flt, cgx_dmac_flt_display, NULL);
static void rvu_dbg_cgx_init(struct rvu *rvu)
{
struct mac_ops *mac_ops;
@@ -2029,6 +2098,9 @@ static void rvu_dbg_cgx_init(struct rvu *rvu)
debugfs_create_file("stats", 0600, rvu->rvu_dbg.lmac,
cgx, &rvu_dbg_cgx_stat_fops);
debugfs_create_file("mac_filter", 0600,
rvu->rvu_dbg.lmac, cgx,
&rvu_dbg_cgx_dmac_flt_fops);
}
}
}