drivers/net/ethernet/emulex/benet/be_cmds.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/emulex/benet/be_cmds.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/emulex/benet/be_cmds.c
Extension
.c
Size
129559 bytes
Lines
5087
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (flags & CQE_FLAGS_VALID_MASK) {
			compl->flags = flags;
			return true;
		}
	}
	return false;
}

/* Need to reset the entire word that houses the valid bit */
static inline void be_mcc_compl_use(struct be_mcc_compl *compl)
{
	compl->flags = 0;
}

static struct be_cmd_resp_hdr *be_decode_resp_hdr(u32 tag0, u32 tag1)
{
	unsigned long addr;

	addr = tag1;
	addr = ((addr << 16) << 16) | tag0;
	return (void *)addr;
}

static bool be_skip_err_log(u8 opcode, u16 base_status, u16 addl_status)
{
	if (base_status == MCC_STATUS_NOT_SUPPORTED ||
	    base_status == MCC_STATUS_ILLEGAL_REQUEST ||
	    addl_status == MCC_ADDL_STATUS_TOO_MANY_INTERFACES ||
	    addl_status == MCC_ADDL_STATUS_INSUFFICIENT_VLANS ||
	    (opcode == OPCODE_COMMON_WRITE_FLASHROM &&
	    (base_status == MCC_STATUS_ILLEGAL_FIELD ||
	     addl_status == MCC_ADDL_STATUS_FLASH_IMAGE_CRC_MISMATCH)))
		return true;
	else
		return false;
}

/* Place holder for all the async MCC cmds wherein the caller is not in a busy
 * loop (has not issued be_mcc_notify_wait())
 */
static void be_async_cmd_process(struct be_adapter *adapter,
				 struct be_mcc_compl *compl,
				 struct be_cmd_resp_hdr *resp_hdr)
{
	enum mcc_base_status base_status = base_status(compl->status);
	u8 opcode = 0, subsystem = 0;

	if (resp_hdr) {
		opcode = resp_hdr->opcode;
		subsystem = resp_hdr->subsystem;
	}

	if (opcode == OPCODE_LOWLEVEL_LOOPBACK_TEST &&
	    subsystem == CMD_SUBSYSTEM_LOWLEVEL) {
		complete(&adapter->et_cmd_compl);
		return;
	}

	if (opcode == OPCODE_LOWLEVEL_SET_LOOPBACK_MODE &&
	    subsystem == CMD_SUBSYSTEM_LOWLEVEL) {
		complete(&adapter->et_cmd_compl);
		return;
	}

	if ((opcode == OPCODE_COMMON_WRITE_FLASHROM ||
	     opcode == OPCODE_COMMON_WRITE_OBJECT) &&
	    subsystem == CMD_SUBSYSTEM_COMMON) {
		adapter->flash_status = compl->status;
		complete(&adapter->et_cmd_compl);
		return;
	}

	if ((opcode == OPCODE_ETH_GET_STATISTICS ||
	     opcode == OPCODE_ETH_GET_PPORT_STATS) &&
	    subsystem == CMD_SUBSYSTEM_ETH &&
	    base_status == MCC_STATUS_SUCCESS) {
		be_parse_stats(adapter);
		adapter->stats_cmd_sent = false;
		return;
	}

	if (opcode == OPCODE_COMMON_GET_CNTL_ADDITIONAL_ATTRIBUTES &&
	    subsystem == CMD_SUBSYSTEM_COMMON) {
		if (base_status == MCC_STATUS_SUCCESS) {
			struct be_cmd_resp_get_cntl_addnl_attribs *resp =
							(void *)resp_hdr;
			adapter->hwmon_info.be_on_die_temp =
						resp->on_die_temperature;
		} else {
			adapter->be_get_temp_freq = 0;

Annotation

Implementation Notes