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Commit f1143c4b authored by Anjali Singhai Jain's avatar Anjali Singhai Jain Committed by Jeff Kirsher
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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: default avatarAnjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: default avatarKavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent da7c224b

drivers/net/ethernet/intel/i40e/i40e_debugfs.c

+114 −0
Original line number Diff line number Diff line
@@ -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");