{
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 {
*((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);
*perrno = -ESRCH;
break;
}
+ i40e_release_spinlock(&hw->aq.arq_spinlock);
return status;
}
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) {
}
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;