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net/bnxt: add HWRM function reset command

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Add bnxt_hwrm_func_reset() function and supporting structs and macros.

New HWRM calls:
bnxt_hwrm_func_reset:
	This command puts the function into the reset state.
	In the reset state, global and port related features of the
	chip are not available.

This command resets a hardware function (PCIe function) and
frees any resources used by the function. This command initiated by
the driver prepare the function for re-use. This command may also be
initiated by a driver prior to doing it's own configuration.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
Reviewed-by: David Christensen <david.christensen@broadcom.com>
This commit is contained in:
Ajit Khaparde 2016-06-15 14:23:16 -07:00 committed by Bruce Richardson
parent 2bb1d5db43
commit 2523b1584c
3 changed files with 147 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/net/bnxt/bnxt_hwrm.c
View File

@ -265,6 +265,23 @@ int bnxt_hwrm_func_qcaps(struct bnxt *bp)
return rc;
}
int bnxt_hwrm_func_reset(struct bnxt *bp)
{
int rc = 0;
struct hwrm_func_reset_input req = {.req_type = 0 };
struct hwrm_func_reset_output *resp = bp->hwrm_cmd_resp_addr;
HWRM_PREP(req, FUNC_RESET, -1, resp);
req.enables = rte_cpu_to_le_32(0);
rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
HWRM_CHECK_RESULT;
return rc;
}
int bnxt_hwrm_func_driver_register(struct bnxt *bp, uint32_t flags,
uint32_t *vf_req_fwd)
{

1
drivers/net/bnxt/bnxt_hwrm.h
View File

@ -54,6 +54,7 @@ int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, void *fwd_cmd);
int bnxt_hwrm_func_driver_register(struct bnxt *bp, uint32_t flags,
uint32_t *vf_req_fwd);
int bnxt_hwrm_func_qcaps(struct bnxt *bp);
int bnxt_hwrm_func_reset(struct bnxt *bp);
int bnxt_hwrm_func_driver_unregister(struct bnxt *bp, uint32_t flags);
int bnxt_hwrm_queue_qportcfg(struct bnxt *bp);

129
drivers/net/bnxt/hsi_struct_def_dpdk.h
View File

@ -83,6 +83,7 @@ struct ctx_hw_stats64 {
* Request types
*/
#define HWRM_VER_GET (UINT32_C(0x0))
#define HWRM_FUNC_RESET (UINT32_C(0x11))
#define HWRM_FUNC_QCAPS (UINT32_C(0x15))
#define HWRM_FUNC_DRV_UNRGTR (UINT32_C(0x1a))
#define HWRM_FUNC_DRV_RGTR (UINT32_C(0x1d))
@ -2048,6 +2049,134 @@ struct hwrm_func_qcaps_output {
uint8_t valid;
} __attribute__((packed));
/* hwrm_func_reset */
/*
* Description: This command resets a hardware function (PCIe function) and
* frees any resources used by the function. This command shall be initiated by
* the driver after an FLR has occurred to prepare the function for re-use. This
* command may also be initiated by a driver prior to doing it's own
* configuration. This command puts the function into the reset state. In the
* reset state, global and port related features of the chip are not available.
*/
/*
* Note: This command will reset a function that has already been disabled or
* idled. The command returns all the resources owned by the function so a new
* driver may allocate and configure resources normally.
*/
/* Input (24 bytes) */
struct hwrm_func_reset_input {
/*
* This value indicates what type of request this is. The format for the
* rest of the command is determined by this field.
*/
uint16_t req_type;
/*
* This value indicates the what completion ring the request will be
* optionally completed on. If the value is -1, then no CR completion
* will be generated. Any other value must be a valid CR ring_id value
* for this function.
*/
uint16_t cmpl_ring;
/* This value indicates the command sequence number. */
uint16_t seq_id;
/*
* Target ID of this command. 0x0 - 0xFFF8 - Used for function ids
* 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF - HWRM
*/
uint16_t target_id;
/*
* This is the host address where the response will be written when the
* request is complete. This area must be 16B aligned and must be
* cleared to zero before the request is made.
*/
uint64_t resp_addr;
/* This bit must be '1' for the vf_id_valid field to be configured. */
#define HWRM_FUNC_RESET_INPUT_ENABLES_VF_ID_VALID \
UINT32_C(0x1)
uint32_t enables;
/*
* The ID of the VF that this PF is trying to reset. Only the parent PF
* shall be allowed to reset a child VF. A parent PF driver shall use
* this field only when a specific child VF is requested to be reset.
*/
uint16_t vf_id;
/* This value indicates the level of a function reset. */
/*
* Reset the caller function and its children VFs (if any). If
* no children functions exist, then reset the caller function
* only.
*/
#define HWRM_FUNC_RESET_INPUT_FUNC_RESET_LEVEL_RESETALL \
(UINT32_C(0x0) << 0)
/* Reset the caller function only */
#define HWRM_FUNC_RESET_INPUT_FUNC_RESET_LEVEL_RESETME \
(UINT32_C(0x1) << 0)
/*
* Reset all children VFs of the caller function driver if the
* caller is a PF driver. It is an error to specify this level
* by a VF driver. It is an error to specify this level by a PF
* driver with no children VFs.
*/
#define HWRM_FUNC_RESET_INPUT_FUNC_RESET_LEVEL_RESETCHILDREN \
(UINT32_C(0x2) << 0)
/*
* Reset a specific VF of the caller function driver if the
* caller is the parent PF driver. It is an error to specify
* this level by a VF driver. It is an error to specify this
* level by a PF driver that is not the parent of the VF that is
* being requested to reset.
*/
#define HWRM_FUNC_RESET_INPUT_FUNC_RESET_LEVEL_RESETVF \
(UINT32_C(0x3) << 0)
uint8_t func_reset_level;
uint8_t unused_0;
} __attribute__((packed));
/* Output (16 bytes) */
struct hwrm_func_reset_output {
/*
* Pass/Fail or error type Note: receiver to verify the in parameters,
* and fail the call with an error when appropriate
*/
uint16_t error_code;
/* This field returns the type of original request. */
uint16_t req_type;
/* This field provides original sequence number of the command. */
uint16_t seq_id;
/*
* This field is the length of the response in bytes. The last byte of
* the response is a valid flag that will read as '1' when the command
* has been completely written to memory.
*/
uint16_t resp_len;
uint32_t unused_0;
uint8_t unused_1;
uint8_t unused_2;
uint8_t unused_3;
/*
* This field is used in Output records to indicate that the output is
* completely written to RAM. This field should be read as '1' to
* indicate that the output has been completely written. When writing a
* command completion or response to an internal processor, the order of
* writes has to be such that this field is written last.
*/
uint8_t valid;
} __attribute__((packed));
/* hwrm_port_phy_cfg */
/*
* Description: This command configures the PHY device for the port. It allows