{
enum i40e_status_code ret_code = I40E_SUCCESS;
-#ifdef X722_SUPPORT
- if (hw->flags & I40E_HW_FLAG_AQ_SRCTL_ACCESS_ENABLE) {
- ret_code = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
- if (!ret_code) {
+ ret_code = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+ if (!ret_code) {
+ if (hw->flags & I40E_HW_FLAG_AQ_SRCTL_ACCESS_ENABLE) {
ret_code = i40e_read_nvm_word_aq(hw, offset, data);
- i40e_release_nvm(hw);
+ } else {
+ ret_code = i40e_read_nvm_word_srctl(hw, offset, data);
}
- } else {
- ret_code = i40e_read_nvm_word_srctl(hw, offset, data);
+ i40e_release_nvm(hw);
}
-#else
- ret_code = i40e_read_nvm_word_srctl(hw, offset, data);
-#endif
return ret_code;
}
{
enum i40e_status_code ret_code = I40E_SUCCESS;
-#ifdef X722_SUPPORT
if (hw->flags & I40E_HW_FLAG_AQ_SRCTL_ACCESS_ENABLE)
ret_code = i40e_read_nvm_word_aq(hw, offset, data);
else
ret_code = i40e_read_nvm_word_srctl(hw, offset, data);
-#else
- ret_code = i40e_read_nvm_word_srctl(hw, offset, data);
-#endif
return ret_code;
}
{
enum i40e_status_code ret_code = I40E_SUCCESS;
-#ifdef X722_SUPPORT
if (hw->flags & I40E_HW_FLAG_AQ_SRCTL_ACCESS_ENABLE)
ret_code = i40e_read_nvm_buffer_aq(hw, offset, words, data);
else
ret_code = i40e_read_nvm_buffer_srctl(hw, offset, words, data);
-#else
- ret_code = i40e_read_nvm_buffer_srctl(hw, offset, words, data);
-#endif
return ret_code;
}
{
enum i40e_status_code ret_code = I40E_SUCCESS;
-#ifdef X722_SUPPORT
if (hw->flags & I40E_HW_FLAG_AQ_SRCTL_ACCESS_ENABLE) {
ret_code = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
if (!ret_code) {
} else {
ret_code = i40e_read_nvm_buffer_srctl(hw, offset, words, data);
}
-#else
- ret_code = i40e_read_nvm_buffer_srctl(hw, offset, words, data);
-#endif
return ret_code;
}
DEBUGFUNC("i40e_validate_nvm_checksum");
- if (hw->flags & I40E_HW_FLAG_AQ_SRCTL_ACCESS_ENABLE)
- ret_code = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+ /* acquire_nvm provides exclusive NVM lock to synchronize access across
+ * PFs. X710 uses i40e_read_nvm_word_srctl which polls for done bit
+ * twice (first time to be able to write address to I40E_GLNVM_SRCTL
+ * register, second to read data from I40E_GLNVM_SRDATA. One PF can see
+ * done bit and try to write address, while another one will interpret
+ * it as a good time to read data. It will cause invalid data to be
+ * read.
+ */
+ ret_code = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
if (!ret_code) {
ret_code = i40e_calc_nvm_checksum(hw, &checksum_local);
- if (hw->flags & I40E_HW_FLAG_AQ_SRCTL_ACCESS_ENABLE)
- i40e_release_nvm(hw);
+ i40e_release_nvm(hw);
if (ret_code != I40E_SUCCESS)
goto i40e_validate_nvm_checksum_exit;
} else {
/* 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->aq.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) {
* 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;
+ }
+
+ /* Clear error status on read */
+ if (hw->nvmupd_state == I40E_NVMUPD_STATE_ERROR)
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+
return I40E_SUCCESS;
}
+ /* Clear status even it is not read and log */
+ if (hw->nvmupd_state == I40E_NVMUPD_STATE_ERROR) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "Clearing I40E_NVMUPD_STATE_ERROR state without reading\n");
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+ }
+
+ /* Acquire lock to prevent race condition where adminq_task
+ * can execute after i40e_nvmupd_nvm_read/write but before state
+ * variables (nvm_wait_opcode, nvm_release_on_done) are updated
+ */
+ i40e_acquire_spinlock(&hw->aq.arq_spinlock);
switch (hw->nvmupd_state) {
case I40E_NVMUPD_STATE_INIT:
status = i40e_nvmupd_state_init(hw, cmd, bytes, perrno);
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 I40E_SUCCESS;
+ }
+
status = I40E_ERR_NOT_READY;
*perrno = -EBUSY;
break;
*perrno = -ESRCH;
break;
}
+ i40e_release_spinlock(&hw->aq.arq_spinlock);
return status;
}
if (status) {
i40e_release_nvm(hw);
} else {
- hw->aq.nvm_release_on_done = true;
+ hw->nvm_release_on_done = true;
+ hw->nvm_wait_opcode = i40e_aqc_opc_nvm_erase;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
}
}
if (status) {
i40e_release_nvm(hw);
} else {
- hw->aq.nvm_release_on_done = true;
+ hw->nvm_release_on_done = true;
+ hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
}
}
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;
-EIO;
i40e_release_nvm(hw);
} else {
- hw->aq.nvm_release_on_done = true;
+ hw->nvm_release_on_done = true;
+ hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
}
}
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:
-EIO;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
} else {
- hw->aq.nvm_release_on_done = true;
+ hw->nvm_release_on_done = true;
+ hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
}
break;
-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;
-EIO;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
} else {
- hw->aq.nvm_release_on_done = true;
+ hw->nvm_release_on_done = true;
+ hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
}
break;
return status;
}
+/**
+ * i40e_nvmupd_check_wait_event - handle NVM update operation events
+ * @hw: pointer to the hardware structure
+ * @opcode: the event that just happened
+ **/
+void i40e_nvmupd_check_wait_event(struct i40e_hw *hw, u16 opcode)
+{
+ 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;
+
+ if (hw->aq.arq_last_status) {
+ hw->nvmupd_state = I40E_NVMUPD_STATE_ERROR;
+ return;
+ }
+
+ switch (hw->nvmupd_state) {
+ case I40E_NVMUPD_STATE_INIT_WAIT:
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+ break;
+
+ case I40E_NVMUPD_STATE_WRITE_WAIT:
+ hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING;
+ break;
+
+ default:
+ break;
+ }
+ }
+}
+
/**
* i40e_nvmupd_validate_command - Validate given command
* @hw: pointer to hardware structure
if (hw->nvm_buff.va) {
buff = hw->nvm_buff.va;
- memcpy(buff, &bytes[aq_desc_len], aq_data_len);
+ i40e_memcpy(buff, &bytes[aq_desc_len], aq_data_len,
+ I40E_NONDMA_TO_NONDMA);
}
}
*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;
}
__func__, cmd->offset, cmd->offset + len);
buff = ((u8 *)&hw->nvm_wb_desc) + cmd->offset;
- memcpy(bytes, buff, len);
+ i40e_memcpy(bytes, buff, len, I40E_NONDMA_TO_NONDMA);
bytes += len;
remainder -= len;
i40e_debug(hw, I40E_DEBUG_NVM, "%s: databuf bytes %d to %d\n",
__func__, start_byte, start_byte + remainder);
- memcpy(bytes, buff, remainder);
+ i40e_memcpy(bytes, buff, remainder, I40E_NONDMA_TO_NONDMA);
}
return I40E_SUCCESS;
Code Review / deb_dpdk.git / blobdiff