[dpdk-dev] [PATCH v5 16/38] bnxt: add HWRM function reset command
Stephen Hurd
stephen.hurd at broadcom.com
Wed Jun 15 00:55:49 CEST 2016
From: Ajit Khaparde <ajit.khaparde at broadcom.com>
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 at broadcom.com>
Signed-off-by: Stephen Hurd <stephen.hurd at broadcom.com>
Reviewed-by: David Christensen <david.christensen at broadcom.com>
--
More descriptive commit log
Reorder footer
---
drivers/net/bnxt/bnxt_hwrm.c | 17 +++++
drivers/net/bnxt/bnxt_hwrm.h | 1 +
drivers/net/bnxt/hsi_struct_def_dpdk.h | 129 +++++++++++++++++++++++++++++++++
3 files changed, 147 insertions(+)
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 633683b..d1ca60a 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -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)
{
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index 75c3442..2679d09 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -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);
diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h b/drivers/net/bnxt/hsi_struct_def_dpdk.h
index 8b30787..6209368 100644
--- a/drivers/net/bnxt/hsi_struct_def_dpdk.h
+++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h
@@ -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
--
1.9.1
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