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i40e: dump VF information in debugfs

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Dump some internal state about VFs through debugfs. This provides
information not available with 'ip link show'. To use, write "dump vf
<id>" to the command file, or just "dump vf" to dump information on all
of the VFs.

Change-ID: Ibe32b7f4ae55d4358c0b903217475f708ada1ecd
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Mitch Williams 2017-04-12 07:16:52 -04:00 committed by Jeff Kirsher
parent 0e626ff7cc
commit 3118025a07
1 changed files with 51 additions and 0 deletions
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51
drivers/net/ethernet/intel/i40e/i40e_debugfs.c
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@ -384,6 +384,8 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
" base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
dev_info(&pf->pdev->dev, " type = %i\n", vsi->type);
if (vsi->type == I40E_VSI_SRIOV)
dev_info(&pf->pdev->dev, " VF ID = %i\n", vsi->vf_id);
dev_info(&pf->pdev->dev,
" info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
vsi->info.valid_sections, vsi->info.switch_id);
@ -694,6 +696,47 @@ static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
}
}
/**
* i40e_dbg_dump_vf - dump VF info
* @pf: the i40e_pf created in command write
* @vf_id: the vf_id from the user
**/
static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
{
struct i40e_vf *vf;
struct i40e_vsi *vsi;
if (!pf->num_alloc_vfs) {
dev_info(&pf->pdev->dev, "no VFs allocated\n");
} else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
vf = &pf->vf[vf_id];
vsi = pf->vsi[vf->lan_vsi_idx];
dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
dev_info(&pf->pdev->dev, " num MDD=%lld, invalid msg=%lld, valid msg=%lld\n",
vf->num_mdd_events,
vf->num_invalid_msgs,
vf->num_valid_msgs);
} else {
dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
}
}
/**
* i40e_dbg_dump_vf_all - dump VF info for all VFs
* @pf: the i40e_pf created in command write
**/
static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
{
int i;
if (!pf->num_alloc_vfs)
dev_info(&pf->pdev->dev, "no VFs enabled!\n");
else
for (i = 0; i < pf->num_alloc_vfs; i++)
i40e_dbg_dump_vf(pf, i);
}
#define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
/**
* i40e_dbg_command_write - write into command datum
@ -712,6 +755,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
struct i40e_vsi *vsi;
int vsi_seid;
int veb_seid;
int vf_id;
int cnt;
/* don't allow partial writes */
@ -914,6 +958,12 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
i40e_dbg_dump_veb_seid(pf, vsi_seid);
else
i40e_dbg_dump_veb_all(pf);
} else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
if (cnt > 0)
i40e_dbg_dump_vf(pf, vf_id);
else
i40e_dbg_dump_vf_all(pf);
} else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
int ring_id, desc_n;
if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
@ -1109,6 +1159,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
dev_info(&pf->pdev->dev, "dump reset stats\n");
dev_info(&pf->pdev->dev, "dump port\n");
dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
dev_info(&pf->pdev->dev,
"dump debug fwdata <cluster_id> <table_id> <index>\n");
}