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Diffstat (limited to 'sys/dev/ixl/i40e_nvm.c')
-rw-r--r--sys/dev/ixl/i40e_nvm.c784
1 files changed, 782 insertions, 2 deletions
diff --git a/sys/dev/ixl/i40e_nvm.c b/sys/dev/ixl/i40e_nvm.c
index 623d96a34192..bd8a45aadcd8 100644
--- a/sys/dev/ixl/i40e_nvm.c
+++ b/sys/dev/ixl/i40e_nvm.c
@@ -218,7 +218,10 @@ static enum i40e_status_code i40e_poll_sr_srctl_done_bit(struct i40e_hw *hw)
enum i40e_status_code i40e_read_nvm_word(struct i40e_hw *hw, u16 offset,
u16 *data)
{
- return i40e_read_nvm_word_srctl(hw, offset, data);
+ enum i40e_status_code ret_code = I40E_SUCCESS;
+
+ ret_code = i40e_read_nvm_word_srctl(hw, offset, data);
+ return ret_code;
}
/**
@@ -306,7 +309,10 @@ enum i40e_status_code i40e_read_nvm_word_aq(struct i40e_hw *hw, u16 offset,
enum i40e_status_code i40e_read_nvm_buffer(struct i40e_hw *hw, u16 offset,
u16 *words, u16 *data)
{
- return i40e_read_nvm_buffer_srctl(hw, offset, words, data);
+ enum i40e_status_code ret_code = I40E_SUCCESS;
+
+ ret_code = i40e_read_nvm_buffer_srctl(hw, offset, words, data);
+ return ret_code;
}
/**
@@ -702,3 +708,777 @@ enum i40e_status_code i40e_validate_nvm_checksum(struct i40e_hw *hw,
i40e_validate_nvm_checksum_exit:
return ret_code;
}
+
+static enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno);
+static enum i40e_status_code i40e_nvmupd_state_reading(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno);
+static enum i40e_status_code i40e_nvmupd_state_writing(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno);
+static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ int *perrno);
+static enum i40e_status_code i40e_nvmupd_nvm_erase(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ int *perrno);
+static enum i40e_status_code i40e_nvmupd_nvm_write(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno);
+static enum i40e_status_code i40e_nvmupd_nvm_read(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno);
+static enum i40e_status_code i40e_nvmupd_exec_aq(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno);
+static enum i40e_status_code i40e_nvmupd_get_aq_result(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno);
+static INLINE u8 i40e_nvmupd_get_module(u32 val)
+{
+ return (u8)(val & I40E_NVM_MOD_PNT_MASK);
+}
+static INLINE u8 i40e_nvmupd_get_transaction(u32 val)
+{
+ return (u8)((val & I40E_NVM_TRANS_MASK) >> I40E_NVM_TRANS_SHIFT);
+}
+
+static const char *i40e_nvm_update_state_str[] = {
+ "I40E_NVMUPD_INVALID",
+ "I40E_NVMUPD_READ_CON",
+ "I40E_NVMUPD_READ_SNT",
+ "I40E_NVMUPD_READ_LCB",
+ "I40E_NVMUPD_READ_SA",
+ "I40E_NVMUPD_WRITE_ERA",
+ "I40E_NVMUPD_WRITE_CON",
+ "I40E_NVMUPD_WRITE_SNT",
+ "I40E_NVMUPD_WRITE_LCB",
+ "I40E_NVMUPD_WRITE_SA",
+ "I40E_NVMUPD_CSUM_CON",
+ "I40E_NVMUPD_CSUM_SA",
+ "I40E_NVMUPD_CSUM_LCB",
+ "I40E_NVMUPD_STATUS",
+ "I40E_NVMUPD_EXEC_AQ",
+ "I40E_NVMUPD_GET_AQ_RESULT",
+};
+
+/**
+ * i40e_nvmupd_command - Process an NVM update command
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * Dispatches command depending on what update state is current
+ **/
+enum i40e_status_code i40e_nvmupd_command(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno)
+{
+ enum i40e_status_code status;
+ enum i40e_nvmupd_cmd upd_cmd;
+
+ DEBUGFUNC("i40e_nvmupd_command");
+
+ /* assume success */
+ *perrno = 0;
+
+ /* 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\n",
+ i40e_nvm_update_state_str[upd_cmd],
+ hw->nvmupd_state,
+ hw->aq.nvm_release_on_done);
+
+ if (upd_cmd == I40E_NVMUPD_INVALID) {
+ *perrno = -EFAULT;
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_validate_command returns %d errno %d\n",
+ upd_cmd, *perrno);
+ }
+
+ /* a status request returns immediately rather than
+ * going into the state machine
+ */
+ if (upd_cmd == I40E_NVMUPD_STATUS) {
+ bytes[0] = hw->nvmupd_state;
+ return I40E_SUCCESS;
+ }
+
+ switch (hw->nvmupd_state) {
+ case I40E_NVMUPD_STATE_INIT:
+ status = i40e_nvmupd_state_init(hw, cmd, bytes, perrno);
+ break;
+
+ case I40E_NVMUPD_STATE_READING:
+ status = i40e_nvmupd_state_reading(hw, cmd, bytes, perrno);
+ break;
+
+ case I40E_NVMUPD_STATE_WRITING:
+ status = i40e_nvmupd_state_writing(hw, cmd, bytes, perrno);
+ break;
+
+ case I40E_NVMUPD_STATE_INIT_WAIT:
+ case I40E_NVMUPD_STATE_WRITE_WAIT:
+ status = I40E_ERR_NOT_READY;
+ *perrno = -EBUSY;
+ break;
+
+ default:
+ /* invalid state, should never happen */
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: no such state %d\n", hw->nvmupd_state);
+ status = I40E_NOT_SUPPORTED;
+ *perrno = -ESRCH;
+ break;
+ }
+ return status;
+}
+
+/**
+ * i40e_nvmupd_state_init - Handle NVM update state Init
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * Process legitimate commands of the Init state and conditionally set next
+ * state. Reject all other commands.
+ **/
+static enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno)
+{
+ enum i40e_status_code status = I40E_SUCCESS;
+ enum i40e_nvmupd_cmd upd_cmd;
+
+ DEBUGFUNC("i40e_nvmupd_state_init");
+
+ upd_cmd = i40e_nvmupd_validate_command(hw, cmd, perrno);
+
+ switch (upd_cmd) {
+ case I40E_NVMUPD_READ_SA:
+ status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+ if (status) {
+ *perrno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
+ } else {
+ status = i40e_nvmupd_nvm_read(hw, cmd, bytes, perrno);
+ i40e_release_nvm(hw);
+ }
+ break;
+
+ case I40E_NVMUPD_READ_SNT:
+ status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+ if (status) {
+ *perrno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
+ } else {
+ status = i40e_nvmupd_nvm_read(hw, cmd, bytes, perrno);
+ if (status)
+ i40e_release_nvm(hw);
+ else
+ hw->nvmupd_state = I40E_NVMUPD_STATE_READING;
+ }
+ break;
+
+ case I40E_NVMUPD_WRITE_ERA:
+ status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
+ if (status) {
+ *perrno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
+ } else {
+ status = i40e_nvmupd_nvm_erase(hw, cmd, perrno);
+ if (status) {
+ i40e_release_nvm(hw);
+ } else {
+ hw->aq.nvm_release_on_done = TRUE;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
+ }
+ }
+ break;
+
+ case I40E_NVMUPD_WRITE_SA:
+ status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
+ if (status) {
+ *perrno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
+ } else {
+ status = i40e_nvmupd_nvm_write(hw, cmd, bytes, perrno);
+ if (status) {
+ i40e_release_nvm(hw);
+ } else {
+ hw->aq.nvm_release_on_done = TRUE;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
+ }
+ }
+ break;
+
+ case I40E_NVMUPD_WRITE_SNT:
+ status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
+ if (status) {
+ *perrno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
+ } else {
+ status = i40e_nvmupd_nvm_write(hw, cmd, bytes, perrno);
+ if (status)
+ i40e_release_nvm(hw);
+ else
+ hw->nvmupd_state = I40E_NVMUPD_STATE_WRITE_WAIT;
+ }
+ break;
+
+ case I40E_NVMUPD_CSUM_SA:
+ status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
+ if (status) {
+ *perrno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
+ } else {
+ status = i40e_update_nvm_checksum(hw);
+ if (status) {
+ *perrno = hw->aq.asq_last_status ?
+ i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status) :
+ -EIO;
+ i40e_release_nvm(hw);
+ } else {
+ hw->aq.nvm_release_on_done = TRUE;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
+ }
+ }
+ break;
+
+ case I40E_NVMUPD_EXEC_AQ:
+ status = i40e_nvmupd_exec_aq(hw, cmd, bytes, perrno);
+ break;
+
+ case I40E_NVMUPD_GET_AQ_RESULT:
+ status = i40e_nvmupd_get_aq_result(hw, cmd, bytes, perrno);
+ break;
+
+ default:
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: bad cmd %s in init state\n",
+ i40e_nvm_update_state_str[upd_cmd]);
+ status = I40E_ERR_NVM;
+ *perrno = -ESRCH;
+ break;
+ }
+ return status;
+}
+
+/**
+ * i40e_nvmupd_state_reading - Handle NVM update state Reading
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * NVM ownership is already held. Process legitimate commands and set any
+ * change in state; reject all other commands.
+ **/
+static enum i40e_status_code i40e_nvmupd_state_reading(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno)
+{
+ enum i40e_status_code status = I40E_SUCCESS;
+ enum i40e_nvmupd_cmd upd_cmd;
+
+ DEBUGFUNC("i40e_nvmupd_state_reading");
+
+ upd_cmd = i40e_nvmupd_validate_command(hw, cmd, perrno);
+
+ switch (upd_cmd) {
+ case I40E_NVMUPD_READ_SA:
+ case I40E_NVMUPD_READ_CON:
+ status = i40e_nvmupd_nvm_read(hw, cmd, bytes, perrno);
+ break;
+
+ case I40E_NVMUPD_READ_LCB:
+ status = i40e_nvmupd_nvm_read(hw, cmd, bytes, perrno);
+ i40e_release_nvm(hw);
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+ break;
+
+ default:
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: bad cmd %s in reading state.\n",
+ i40e_nvm_update_state_str[upd_cmd]);
+ status = I40E_NOT_SUPPORTED;
+ *perrno = -ESRCH;
+ break;
+ }
+ return status;
+}
+
+/**
+ * i40e_nvmupd_state_writing - Handle NVM update state Writing
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * NVM ownership is already held. Process legitimate commands and set any
+ * change in state; reject all other commands
+ **/
+static enum i40e_status_code i40e_nvmupd_state_writing(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno)
+{
+ enum i40e_status_code status = I40E_SUCCESS;
+ enum i40e_nvmupd_cmd upd_cmd;
+ bool retry_attempt = FALSE;
+
+ DEBUGFUNC("i40e_nvmupd_state_writing");
+
+ upd_cmd = i40e_nvmupd_validate_command(hw, cmd, perrno);
+
+retry:
+ switch (upd_cmd) {
+ case I40E_NVMUPD_WRITE_CON:
+ status = i40e_nvmupd_nvm_write(hw, cmd, bytes, perrno);
+ if (!status)
+ hw->nvmupd_state = I40E_NVMUPD_STATE_WRITE_WAIT;
+ break;
+
+ case I40E_NVMUPD_WRITE_LCB:
+ status = i40e_nvmupd_nvm_write(hw, cmd, bytes, perrno);
+ if (status) {
+ *perrno = hw->aq.asq_last_status ?
+ i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status) :
+ -EIO;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+ } else {
+ hw->aq.nvm_release_on_done = TRUE;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
+ }
+ break;
+
+ case I40E_NVMUPD_CSUM_CON:
+ status = i40e_update_nvm_checksum(hw);
+ if (status) {
+ *perrno = hw->aq.asq_last_status ?
+ i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status) :
+ -EIO;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+ } else {
+ hw->nvmupd_state = I40E_NVMUPD_STATE_WRITE_WAIT;
+ }
+ break;
+
+ case I40E_NVMUPD_CSUM_LCB:
+ status = i40e_update_nvm_checksum(hw);
+ if (status) {
+ *perrno = hw->aq.asq_last_status ?
+ i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status) :
+ -EIO;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+ } else {
+ hw->aq.nvm_release_on_done = TRUE;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
+ }
+ break;
+
+ default:
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: bad cmd %s in writing state.\n",
+ i40e_nvm_update_state_str[upd_cmd]);
+ status = I40E_NOT_SUPPORTED;
+ *perrno = -ESRCH;
+ break;
+ }
+
+ /* In some circumstances, a multi-write transaction takes longer
+ * than the default 3 minute timeout on the write semaphore. If
+ * the write failed with an EBUSY status, this is likely the problem,
+ * so here we try to reacquire the semaphore then retry the write.
+ * We only do one retry, then give up.
+ */
+ if (status && (hw->aq.asq_last_status == I40E_AQ_RC_EBUSY) &&
+ !retry_attempt) {
+ enum i40e_status_code old_status = status;
+ u32 old_asq_status = hw->aq.asq_last_status;
+ u32 gtime;
+
+ gtime = rd32(hw, I40E_GLVFGEN_TIMER);
+ if (gtime >= hw->nvm.hw_semaphore_timeout) {
+ i40e_debug(hw, I40E_DEBUG_ALL,
+ "NVMUPD: write semaphore expired (%d >= %lld), retrying\n",
+ gtime, hw->nvm.hw_semaphore_timeout);
+ i40e_release_nvm(hw);
+ status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
+ if (status) {
+ i40e_debug(hw, I40E_DEBUG_ALL,
+ "NVMUPD: write semaphore reacquire failed aq_err = %d\n",
+ hw->aq.asq_last_status);
+ status = old_status;
+ hw->aq.asq_last_status = old_asq_status;
+ } else {
+ retry_attempt = TRUE;
+ goto retry;
+ }
+ }
+ }
+
+ return status;
+}
+
+/**
+ * i40e_nvmupd_validate_command - Validate given command
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @perrno: pointer to return error code
+ *
+ * Return one of the valid command types or I40E_NVMUPD_INVALID
+ **/
+static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ int *perrno)
+{
+ enum i40e_nvmupd_cmd upd_cmd;
+ u8 module, transaction;
+
+ DEBUGFUNC("i40e_nvmupd_validate_command\n");
+
+ /* anything that doesn't match a recognized case is an error */
+ upd_cmd = I40E_NVMUPD_INVALID;
+
+ transaction = i40e_nvmupd_get_transaction(cmd->config);
+ module = i40e_nvmupd_get_module(cmd->config);
+
+ /* limits on data size */
+ if ((cmd->data_size < 1) ||
+ (cmd->data_size > I40E_NVMUPD_MAX_DATA)) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_validate_command data_size %d\n",
+ cmd->data_size);
+ *perrno = -EFAULT;
+ return I40E_NVMUPD_INVALID;
+ }
+
+ switch (cmd->command) {
+ case I40E_NVM_READ:
+ switch (transaction) {
+ case I40E_NVM_CON:
+ upd_cmd = I40E_NVMUPD_READ_CON;
+ break;
+ case I40E_NVM_SNT:
+ upd_cmd = I40E_NVMUPD_READ_SNT;
+ break;
+ case I40E_NVM_LCB:
+ upd_cmd = I40E_NVMUPD_READ_LCB;
+ break;
+ case I40E_NVM_SA:
+ upd_cmd = I40E_NVMUPD_READ_SA;
+ break;
+ case I40E_NVM_EXEC:
+ if (module == 0xf)
+ upd_cmd = I40E_NVMUPD_STATUS;
+ else if (module == 0)
+ upd_cmd = I40E_NVMUPD_GET_AQ_RESULT;
+ break;
+ }
+ break;
+
+ case I40E_NVM_WRITE:
+ switch (transaction) {
+ case I40E_NVM_CON:
+ upd_cmd = I40E_NVMUPD_WRITE_CON;
+ break;
+ case I40E_NVM_SNT:
+ upd_cmd = I40E_NVMUPD_WRITE_SNT;
+ break;
+ case I40E_NVM_LCB:
+ upd_cmd = I40E_NVMUPD_WRITE_LCB;
+ break;
+ case I40E_NVM_SA:
+ upd_cmd = I40E_NVMUPD_WRITE_SA;
+ break;
+ case I40E_NVM_ERA:
+ upd_cmd = I40E_NVMUPD_WRITE_ERA;
+ break;
+ case I40E_NVM_CSUM:
+ upd_cmd = I40E_NVMUPD_CSUM_CON;
+ break;
+ case (I40E_NVM_CSUM|I40E_NVM_SA):
+ upd_cmd = I40E_NVMUPD_CSUM_SA;
+ break;
+ case (I40E_NVM_CSUM|I40E_NVM_LCB):
+ upd_cmd = I40E_NVMUPD_CSUM_LCB;
+ break;
+ case I40E_NVM_EXEC:
+ if (module == 0)
+ upd_cmd = I40E_NVMUPD_EXEC_AQ;
+ break;
+ }
+ break;
+ }
+
+ return upd_cmd;
+}
+
+/**
+ * i40e_nvmupd_exec_aq - Run an AQ command
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * cmd structure contains identifiers and data buffer
+ **/
+static enum i40e_status_code i40e_nvmupd_exec_aq(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno)
+{
+ struct i40e_asq_cmd_details cmd_details;
+ enum i40e_status_code status;
+ struct i40e_aq_desc *aq_desc;
+ u32 buff_size = 0;
+ u8 *buff = NULL;
+ u32 aq_desc_len;
+ u32 aq_data_len;
+
+ i40e_debug(hw, I40E_DEBUG_NVM, "NVMUPD: %s\n", __func__);
+ memset(&cmd_details, 0, sizeof(cmd_details));
+ cmd_details.wb_desc = &hw->nvm_wb_desc;
+
+ aq_desc_len = sizeof(struct i40e_aq_desc);
+ memset(&hw->nvm_wb_desc, 0, aq_desc_len);
+
+ /* get the aq descriptor */
+ if (cmd->data_size < aq_desc_len) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: not enough aq desc bytes for exec, size %d < %d\n",
+ cmd->data_size, aq_desc_len);
+ *perrno = -EINVAL;
+ return I40E_ERR_PARAM;
+ }
+ aq_desc = (struct i40e_aq_desc *)bytes;
+
+ /* if data buffer needed, make sure it's ready */
+ aq_data_len = cmd->data_size - aq_desc_len;
+ buff_size = max(aq_data_len, (u32)LE16_TO_CPU(aq_desc->datalen));
+ if (buff_size) {
+ if (!hw->nvm_buff.va) {
+ status = i40e_allocate_virt_mem(hw, &hw->nvm_buff,
+ hw->aq.asq_buf_size);
+ if (status)
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: i40e_allocate_virt_mem for exec buff failed, %d\n",
+ status);
+ }
+
+ if (hw->nvm_buff.va) {
+ buff = hw->nvm_buff.va;
+ memcpy(buff, &bytes[aq_desc_len], aq_data_len);
+ }
+ }
+
+ /* and away we go! */
+ status = i40e_asq_send_command(hw, aq_desc, buff,
+ buff_size, &cmd_details);
+ if (status) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_exec_aq err %s aq_err %s\n",
+ i40e_stat_str(hw, status),
+ i40e_aq_str(hw, hw->aq.asq_last_status));
+ *perrno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
+ }
+
+ return status;
+}
+
+/**
+ * i40e_nvmupd_get_aq_result - Get the results from the previous exec_aq
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * cmd structure contains identifiers and data buffer
+ **/
+static enum i40e_status_code i40e_nvmupd_get_aq_result(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno)
+{
+ u32 aq_total_len;
+ u32 aq_desc_len;
+ int remainder;
+ u8 *buff;
+
+ i40e_debug(hw, I40E_DEBUG_NVM, "NVMUPD: %s\n", __func__);
+
+ aq_desc_len = sizeof(struct i40e_aq_desc);
+ aq_total_len = aq_desc_len + LE16_TO_CPU(hw->nvm_wb_desc.datalen);
+
+ /* check offset range */
+ if (cmd->offset > aq_total_len) {
+ i40e_debug(hw, I40E_DEBUG_NVM, "%s: offset too big %d > %d\n",
+ __func__, cmd->offset, aq_total_len);
+ *perrno = -EINVAL;
+ return I40E_ERR_PARAM;
+ }
+
+ /* check copylength range */
+ if (cmd->data_size > (aq_total_len - cmd->offset)) {
+ int new_len = aq_total_len - cmd->offset;
+
+ i40e_debug(hw, I40E_DEBUG_NVM, "%s: copy length %d too big, trimming to %d\n",
+ __func__, cmd->data_size, new_len);
+ cmd->data_size = new_len;
+ }
+
+ remainder = cmd->data_size;
+ if (cmd->offset < aq_desc_len) {
+ u32 len = aq_desc_len - cmd->offset;
+
+ len = min(len, cmd->data_size);
+ i40e_debug(hw, I40E_DEBUG_NVM, "%s: aq_desc bytes %d to %d\n",
+ __func__, cmd->offset, cmd->offset + len);
+
+ buff = ((u8 *)&hw->nvm_wb_desc) + cmd->offset;
+ memcpy(bytes, buff, len);
+
+ bytes += len;
+ remainder -= len;
+ buff = hw->nvm_buff.va;
+ } else {
+ buff = (u8 *)hw->nvm_buff.va + (cmd->offset - aq_desc_len);
+ }
+
+ if (remainder > 0) {
+ int start_byte = buff - (u8 *)hw->nvm_buff.va;
+
+ i40e_debug(hw, I40E_DEBUG_NVM, "%s: databuf bytes %d to %d\n",
+ __func__, start_byte, start_byte + remainder);
+ memcpy(bytes, buff, remainder);
+ }
+
+ return I40E_SUCCESS;
+}
+
+/**
+ * i40e_nvmupd_nvm_read - Read NVM
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * cmd structure contains identifiers and data buffer
+ **/
+static enum i40e_status_code i40e_nvmupd_nvm_read(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno)
+{
+ struct i40e_asq_cmd_details cmd_details;
+ enum i40e_status_code status;
+ u8 module, transaction;
+ bool last;
+
+ transaction = i40e_nvmupd_get_transaction(cmd->config);
+ module = i40e_nvmupd_get_module(cmd->config);
+ last = (transaction == I40E_NVM_LCB) || (transaction == I40E_NVM_SA);
+
+ memset(&cmd_details, 0, sizeof(cmd_details));
+ cmd_details.wb_desc = &hw->nvm_wb_desc;
+
+ status = i40e_aq_read_nvm(hw, module, cmd->offset, (u16)cmd->data_size,
+ bytes, last, &cmd_details);
+ if (status) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_read mod 0x%x off 0x%x len 0x%x\n",
+ module, cmd->offset, cmd->data_size);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_read status %d aq %d\n",
+ status, hw->aq.asq_last_status);
+ *perrno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
+ }
+
+ return status;
+}
+
+/**
+ * i40e_nvmupd_nvm_erase - Erase an NVM module
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @perrno: pointer to return error code
+ *
+ * module, offset, data_size and data are in cmd structure
+ **/
+static enum i40e_status_code i40e_nvmupd_nvm_erase(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ int *perrno)
+{
+ enum i40e_status_code status = I40E_SUCCESS;
+ struct i40e_asq_cmd_details cmd_details;
+ u8 module, transaction;
+ bool last;
+
+ transaction = i40e_nvmupd_get_transaction(cmd->config);
+ module = i40e_nvmupd_get_module(cmd->config);
+ last = (transaction & I40E_NVM_LCB);
+
+ memset(&cmd_details, 0, sizeof(cmd_details));
+ cmd_details.wb_desc = &hw->nvm_wb_desc;
+
+ status = i40e_aq_erase_nvm(hw, module, cmd->offset, (u16)cmd->data_size,
+ last, &cmd_details);
+ if (status) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_erase mod 0x%x off 0x%x len 0x%x\n",
+ module, cmd->offset, cmd->data_size);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_erase status %d aq %d\n",
+ status, hw->aq.asq_last_status);
+ *perrno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
+ }
+
+ return status;
+}
+
+/**
+ * i40e_nvmupd_nvm_write - Write NVM
+ * @hw: pointer to hardware structure
+ * @cmd: pointer to nvm update command buffer
+ * @bytes: pointer to the data buffer
+ * @perrno: pointer to return error code
+ *
+ * module, offset, data_size and data are in cmd structure
+ **/
+static enum i40e_status_code i40e_nvmupd_nvm_write(struct i40e_hw *hw,
+ struct i40e_nvm_access *cmd,
+ u8 *bytes, int *perrno)
+{
+ enum i40e_status_code status = I40E_SUCCESS;
+ struct i40e_asq_cmd_details cmd_details;
+ u8 module, transaction;
+ bool last;
+
+ transaction = i40e_nvmupd_get_transaction(cmd->config);
+ module = i40e_nvmupd_get_module(cmd->config);
+ last = (transaction & I40E_NVM_LCB);
+
+ memset(&cmd_details, 0, sizeof(cmd_details));
+ cmd_details.wb_desc = &hw->nvm_wb_desc;
+
+ status = i40e_aq_update_nvm(hw, module, cmd->offset,
+ (u16)cmd->data_size, bytes, last,
+ &cmd_details);
+ if (status) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_write mod 0x%x off 0x%x len 0x%x\n",
+ module, cmd->offset, cmd->data_size);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_write status %d aq %d\n",
+ status, hw->aq.asq_last_status);
+ *perrno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
+ }
+
+ return status;
+}