i40e: Expose AQ debugfs hooks

Add more functionality to debugfs to assist development
and testing of AQ commands.

adds:
send aq_cmd
send indirect aq_cmd

Change-Id: I01710cddd33110a6c1e1aabf84cb6e93cda4c42a
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 45bdccae1fb0a1a6f36e37bda35682d75ab431d7..125f758a03ac241131f56355e4a2e21f57ca7077 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1523,6 +1523,118 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
                } else {
                        dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
                }
+       } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
+               struct i40e_aq_desc *desc;
+               i40e_status ret;
+
+               desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
+               if (!desc)
+                       goto command_write_done;
+               cnt = sscanf(&cmd_buf[11],
+                            "%hx %hx %hx %hx %x %x %x %x %x %x",
+                            &desc->flags,
+                            &desc->opcode, &desc->datalen, &desc->retval,
+                            &desc->cookie_high, &desc->cookie_low,
+                            &desc->params.internal.param0,
+                            &desc->params.internal.param1,
+                            &desc->params.internal.param2,
+                            &desc->params.internal.param3);
+               if (cnt != 10) {
+                       dev_info(&pf->pdev->dev,
+                                "send aq_cmd: bad command string, cnt=%d\n",
+                                cnt);
+                       kfree(desc);
+                       desc = NULL;
+                       goto command_write_done;
+               }
+               ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
+               if (!ret) {
+                       dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
+               } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
+                       dev_info(&pf->pdev->dev,
+                                "AQ command send failed Opcode %x AQ Error: %d\n",
+                                desc->opcode, pf->hw.aq.asq_last_status);
+               } else {
+                       dev_info(&pf->pdev->dev,
+                                "AQ command send failed Opcode %x Status: %d\n",
+                                desc->opcode, ret);
+               }
+               dev_info(&pf->pdev->dev,
+                        "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
+                        desc->flags, desc->opcode, desc->datalen, desc->retval,
+                        desc->cookie_high, desc->cookie_low,
+                        desc->params.internal.param0,
+                        desc->params.internal.param1,
+                        desc->params.internal.param2,
+                        desc->params.internal.param3);
+               kfree(desc);
+               desc = NULL;
+       } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
+               struct i40e_aq_desc *desc;
+               i40e_status ret;
+               u16 buffer_len;
+               u8 *buff;
+
+               desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
+               if (!desc)
+                       goto command_write_done;
+               cnt = sscanf(&cmd_buf[20],
+                            "%hx %hx %hx %hx %x %x %x %x %x %x %hd",
+                            &desc->flags,
+                            &desc->opcode, &desc->datalen, &desc->retval,
+                            &desc->cookie_high, &desc->cookie_low,
+                            &desc->params.internal.param0,
+                            &desc->params.internal.param1,
+                            &desc->params.internal.param2,
+                            &desc->params.internal.param3,
+                            &buffer_len);
+               if (cnt != 11) {
+                       dev_info(&pf->pdev->dev,
+                                "send indirect aq_cmd: bad command string, cnt=%d\n",
+                                cnt);
+                       kfree(desc);
+                       desc = NULL;
+                       goto command_write_done;
+               }
+               /* Just stub a buffer big enough in case user messed up */
+               if (buffer_len == 0)
+                       buffer_len = 1280;
+
+               buff = kzalloc(buffer_len, GFP_KERNEL);
+               if (!buff) {
+                       kfree(desc);
+                       desc = NULL;
+                       goto command_write_done;
+               }
+               desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
+               ret = i40e_asq_send_command(&pf->hw, desc, buff,
+                                           buffer_len, NULL);
+               if (!ret) {
+                       dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
+               } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
+                       dev_info(&pf->pdev->dev,
+                                "AQ command send failed Opcode %x AQ Error: %d\n",
+                                desc->opcode, pf->hw.aq.asq_last_status);
+               } else {
+                       dev_info(&pf->pdev->dev,
+                                "AQ command send failed Opcode %x Status: %d\n",
+                                desc->opcode, ret);
+               }
+               dev_info(&pf->pdev->dev,
+                        "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
+                        desc->flags, desc->opcode, desc->datalen, desc->retval,
+                        desc->cookie_high, desc->cookie_low,
+                        desc->params.internal.param0,
+                        desc->params.internal.param1,
+                        desc->params.internal.param2,
+                        desc->params.internal.param3);
+               print_hex_dump(KERN_INFO, "AQ buffer WB: ",
+                              DUMP_PREFIX_OFFSET, 16, 1,
+                              buff, buffer_len, true);
+               kfree(buff);
+               buff = NULL;
+               kfree(desc);
+               desc = NULL;
        } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
                   (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
                struct i40e_fdir_data fd_data;
@@ -1774,6 +1886,8 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
                dev_info(&pf->pdev->dev, "  pfr\n");
                dev_info(&pf->pdev->dev, "  corer\n");
                dev_info(&pf->pdev->dev, "  globr\n");
+               dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
+               dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
                dev_info(&pf->pdev->dev, "  add fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n");
                dev_info(&pf->pdev->dev, "  rem fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n");
                dev_info(&pf->pdev->dev, "  lldp start\n");