i40e: Specify AQ event opcode to wait for

To add a little flexibility to the nvmupdate facility, this code adds the
ability to specify an AQ event opcode to wait on after the Exec_AQ request.

Change-ID: Iddbfd63c3de8df3edb9d3e90678b08989bc4946e
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index f2cea3d..954efe3 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -693,10 +693,10 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
        /* early check for status command and debug msgs */
        upd_cmd = i40e_nvmupd_validate_command(hw, cmd, perrno);
 
-       i40e_debug(hw, I40E_DEBUG_NVM, "%s state %d nvm_release_on_hold %d cmd 0x%08x config 0x%08x offset 0x%08x data_size 0x%08x\n",
+       i40e_debug(hw, I40E_DEBUG_NVM, "%s state %d nvm_release_on_hold %d opc 0x%04x cmd 0x%08x config 0x%08x offset 0x%08x data_size 0x%08x\n",
                   i40e_nvm_update_state_str[upd_cmd],
                   hw->nvmupd_state,
-                  hw->nvm_release_on_done,
+                  hw->nvm_release_on_done, hw->nvm_wait_opcode,
                   cmd->command, cmd->config, cmd->offset, cmd->data_size);
 
        if (upd_cmd == I40E_NVMUPD_INVALID) {
@@ -710,7 +710,18 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
         * going into the state machine
         */
        if (upd_cmd == I40E_NVMUPD_STATUS) {
+               if (!cmd->data_size) {
+                       *perrno = -EFAULT;
+                       return I40E_ERR_BUF_TOO_SHORT;
+               }
+
                bytes[0] = hw->nvmupd_state;
+
+               if (cmd->data_size >= 4) {
+                       bytes[1] = 0;
+                       *((u16 *)&bytes[2]) = hw->nvm_wait_opcode;
+               }
+
                return 0;
        }
 
@@ -729,6 +740,14 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
 
        case I40E_NVMUPD_STATE_INIT_WAIT:
        case I40E_NVMUPD_STATE_WRITE_WAIT:
+               /* if we need to stop waiting for an event, clear
+                * the wait info and return before doing anything else
+                */
+               if (cmd->offset == 0xffff) {
+                       i40e_nvmupd_check_wait_event(hw, hw->nvm_wait_opcode);
+                       return 0;
+               }
+
                status = I40E_ERR_NOT_READY;
                *perrno = -EBUSY;
                break;
@@ -800,6 +819,7 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
                                i40e_release_nvm(hw);
                        } else {
                                hw->nvm_release_on_done = true;
+                               hw->nvm_wait_opcode = i40e_aqc_opc_nvm_erase;
                                hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
                        }
                }
@@ -816,6 +836,7 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
                                i40e_release_nvm(hw);
                        } else {
                                hw->nvm_release_on_done = true;
+                               hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
                                hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
                        }
                }
@@ -828,10 +849,12 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
                                                     hw->aq.asq_last_status);
                } else {
                        status = i40e_nvmupd_nvm_write(hw, cmd, bytes, perrno);
-                       if (status)
+                       if (status) {
                                i40e_release_nvm(hw);
-                       else
+                       } else {
+                               hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
                                hw->nvmupd_state = I40E_NVMUPD_STATE_WRITE_WAIT;
+                       }
                }
                break;
 
@@ -850,6 +873,7 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
                                i40e_release_nvm(hw);
                        } else {
                                hw->nvm_release_on_done = true;
+                               hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
                                hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
                        }
                }
@@ -940,8 +964,10 @@ retry:
        switch (upd_cmd) {
        case I40E_NVMUPD_WRITE_CON:
                status = i40e_nvmupd_nvm_write(hw, cmd, bytes, perrno);
-               if (!status)
+               if (!status) {
+                       hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
                        hw->nvmupd_state = I40E_NVMUPD_STATE_WRITE_WAIT;
+               }
                break;
 
        case I40E_NVMUPD_WRITE_LCB:
@@ -954,6 +980,7 @@ retry:
                        hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
                } else {
                        hw->nvm_release_on_done = true;
+                       hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
                        hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
                }
                break;
@@ -967,6 +994,7 @@ retry:
                                   -EIO;
                        hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
                } else {
+                       hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
                        hw->nvmupd_state = I40E_NVMUPD_STATE_WRITE_WAIT;
                }
                break;
@@ -981,6 +1009,7 @@ retry:
                        hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
                } else {
                        hw->nvm_release_on_done = true;
+                       hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
                        hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
                }
                break;
@@ -1036,14 +1065,14 @@ retry:
  **/
 void i40e_nvmupd_check_wait_event(struct i40e_hw *hw, u16 opcode)
 {
-       if (opcode == i40e_aqc_opc_nvm_erase ||
-           opcode == i40e_aqc_opc_nvm_update) {
+       if (opcode == hw->nvm_wait_opcode) {
                i40e_debug(hw, I40E_DEBUG_NVM,
                           "NVMUPD: clearing wait on opcode 0x%04x\n", opcode);
                if (hw->nvm_release_on_done) {
                        i40e_release_nvm(hw);
                        hw->nvm_release_on_done = false;
                }
+               hw->nvm_wait_opcode = 0;
 
                switch (hw->nvmupd_state) {
                case I40E_NVMUPD_STATE_INIT_WAIT:
@@ -1220,6 +1249,12 @@ static i40e_status i40e_nvmupd_exec_aq(struct i40e_hw *hw,
                *perrno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
        }
 
+       /* should we wait for a followup event? */
+       if (cmd->offset) {
+               hw->nvm_wait_opcode = cmd->offset;
+               hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
+       }
+
        return status;
 }
 

diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 793036b..bb57cd9 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -550,6 +550,7 @@ struct i40e_hw {
        struct i40e_aq_desc nvm_wb_desc;
        struct i40e_virt_mem nvm_buff;
        bool nvm_release_on_done;
+       u16 nvm_wait_opcode;
 
        /* HMC info */
        struct i40e_hmc_info hmc; /* HMC info struct */

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index 4a78c18..b720713 100644 (file)
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -523,6 +523,7 @@ struct i40e_hw {
        struct i40e_aq_desc nvm_wb_desc;
        struct i40e_virt_mem nvm_buff;
        bool nvm_release_on_done;
+       u16 nvm_wait_opcode;
 
        /* HMC info */
        struct i40e_hmc_info hmc; /* HMC info struct */