From: Vamsi Atluri <[email protected]> Add debugfs file to display host memory allocations including tag, size, order, and physical address for each memory request.
Signed-off-by: Vamsi Atluri <[email protected]> --- drivers/net/ethernet/amd/pds_core/debugfs.c | 43 +++++++++++++++++++++++++++++ drivers/net/ethernet/amd/pds_core/main.c | 2 ++ 2 files changed, 45 insertions(+) diff --git a/drivers/net/ethernet/amd/pds_core/debugfs.c b/drivers/net/ethernet/amd/pds_core/debugfs.c index 04c5e3abd8d7..79312107f721 100644 --- a/drivers/net/ethernet/amd/pds_core/debugfs.c +++ b/drivers/net/ethernet/amd/pds_core/debugfs.c @@ -173,3 +173,46 @@ void pdsc_debugfs_del_qcq(struct pdsc_qcq *qcq) debugfs_remove_recursive(qcq->dentry); qcq->dentry = NULL; } + +static int host_mem_show(struct seq_file *seq, void *v) +{ + struct pdsc *pdsc = seq->private; + struct pdsc_host_mem *hm; + int i; + + if (!pdsc->host_mem_reqs || pdsc->num_host_mem_reqs == 0) { + seq_puts(seq, "No host memory allocated\n"); + return 0; + } + + seq_printf(seq, "Host memory requests: %d\n\n", pdsc->num_host_mem_reqs); + seq_puts(seq, "Tag Size Order PA\n"); + seq_puts(seq, "--- ---- ----- --\n"); + + for (i = 0; i < pdsc->num_host_mem_reqs; i++) { + hm = &pdsc->host_mem_reqs[i]; + + if (!hm->pg) + continue; + + seq_printf(seq, "%-6d %-12u %-6d 0x%llx\n", + hm->tag, hm->size, hm->order, + (unsigned long long)hm->pa); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(host_mem); + +void pdsc_debugfs_add_host_mem(struct pdsc *pdsc) +{ + if (!(pdsc->dev_ident.capabilities & cpu_to_le64(PDS_CORE_DEV_CAP_HOST_MEM))) + return; + + /* This file will already exist in the reset flow */ + if (debugfs_lookup("host_mem", pdsc->dentry)) + return; + + debugfs_create_file("host_mem", 0400, pdsc->dentry, + pdsc, &host_mem_fops); +} diff --git a/drivers/net/ethernet/amd/pds_core/main.c b/drivers/net/ethernet/amd/pds_core/main.c index 0a0542bf7cbb..4c14198eaafe 100644 --- a/drivers/net/ethernet/amd/pds_core/main.c +++ b/drivers/net/ethernet/amd/pds_core/main.c @@ -264,6 +264,8 @@ static int pdsc_init_pf(struct pdsc *pdsc) mutex_unlock(&pdsc->config_lock); + pdsc_debugfs_add_host_mem(pdsc); + err = pdsc_auxbus_dev_add(pdsc, pdsc, PDS_DEV_TYPE_FWCTL, &pdsc->padev); if (err) goto err_out_stop; -- 2.43.0
