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Message-Id: <1508273069-40461-8-git-send-email-steven.lin1@broadcom.com>
Date: Tue, 17 Oct 2017 16:44:29 -0400
From: Steve Lin <steven.lin1@...adcom.com>
To: netdev@...r.kernel.org
Cc: jiri@...lanox.com, davem@...emloft.net, michael.chan@...adcom.com,
linville@...driver.com, gospo@...adcom.com,
steven.lin1@...adcom.com
Subject: [PATCH 7/7] bnxt: Add devlink support for config get/set
Implements get and set of configuration parameters using new devlink
config get/set API.
Signed-off-by: Steve Lin <steven.lin1@...adcom.com>
Acked-by: Andy Gospodarek <gospo@...adcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 310 +++++++++++++++++++++-
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h | 17 ++
drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h | 100 +++++++
3 files changed, 421 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index f3f6aa8..e247cae 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -14,11 +14,309 @@
#include "bnxt_vfr.h"
#include "bnxt_devlink.h"
-static const struct devlink_ops bnxt_dl_ops = {
+struct bnxt_drv_cfgparam bnxt_drv_cfgparam_list[] = {
+ {DEVLINK_ATTR_PERM_CFG_MAX_NUM_PF_MSIX_VECT, BNXT_DRV_PF,
+ BNXT_DRV_APPL_SHARED, 10, 108},
+ {DEVLINK_ATTR_PERM_CFG_IGNORE_ARI_CAPABILITY, BNXT_DRV_PF,
+ BNXT_DRV_APPL_SHARED, 1, 164},
+ {DEVLINK_ATTR_PERM_CFG_PME_CAPABILITY_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_SHARED, 1, 166},
+ {DEVLINK_ATTR_PERM_CFG_LLDP_NEAREST_BRIDGE_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_SHARED, 1, 269},
+ {DEVLINK_ATTR_PERM_CFG_LLDP_NEAREST_NONTPMR_BRIDGE_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_SHARED, 1, 270},
+ {DEVLINK_ATTR_PERM_CFG_SECURE_NIC_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_SHARED, 1, 162},
+ {DEVLINK_ATTR_PERM_CFG_PHY_SELECT, BNXT_DRV_PF,
+ BNXT_DRV_APPL_SHARED, 1, 329},
+ {DEVLINK_ATTR_PERM_CFG_SRIOV_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_SHARED, 1, 401},
+
+ {DEVLINK_ATTR_PERM_CFG_MBA_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 1, 351},
+ {DEVLINK_ATTR_PERM_CFG_MBA_BOOT_TYPE, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 2, 352},
+ {DEVLINK_ATTR_PERM_CFG_MBA_DELAY_TIME, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 4, 353},
+ {DEVLINK_ATTR_PERM_CFG_MBA_SETUP_HOT_KEY, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 1, 354},
+ {DEVLINK_ATTR_PERM_CFG_MBA_HIDE_SETUP_PROMPT, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 1, 355},
+ {DEVLINK_ATTR_PERM_CFG_MBA_VLAN_TAG, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 16, 357},
+ {DEVLINK_ATTR_PERM_CFG_MBA_VLAN_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 1, 358},
+ {DEVLINK_ATTR_PERM_CFG_MBA_LINK_SPEED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 4, 359},
+ {DEVLINK_ATTR_PERM_CFG_MBA_BOOT_RETRY_COUNT, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 3, 360},
+ {DEVLINK_ATTR_PERM_CFG_MBA_BOOT_PROTOCOL, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 3, 361},
+ {DEVLINK_ATTR_PERM_CFG_NUM_VF_PER_PF, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 8, 404},
+ {DEVLINK_ATTR_PERM_CFG_MSIX_VECTORS_PER_VF, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 10, 406},
+ {DEVLINK_ATTR_PERM_CFG_NPAR_BW_RESERVATION, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 10, 501},
+ {DEVLINK_ATTR_PERM_CFG_NPAR_BW_LIMIT, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 10, 502},
+ {DEVLINK_ATTR_PERM_CFG_RDMA_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 1, 506},
+ {DEVLINK_ATTR_PERM_CFG_NPAR_BW_IN_PERCENT, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 1, 507},
+ {DEVLINK_ATTR_PERM_CFG_NPAR_BW_RESERVATION_VALID, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 1, 508},
+ {DEVLINK_ATTR_PERM_CFG_NPAR_BW_LIMIT_VALID, BNXT_DRV_PF,
+ BNXT_DRV_APPL_FUNCTION, 1, 509},
+
+ {DEVLINK_ATTR_PERM_CFG_MAGIC_PACKET_WOL_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 1, 152},
+ {DEVLINK_ATTR_PERM_CFG_DCBX_MODE, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 4, 155},
+ {DEVLINK_ATTR_PERM_CFG_MULTIFUNC_MODE, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 5, 157},
+ {DEVLINK_ATTR_PERM_CFG_PRE_OS_LINK_SPEED_D0, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 4, 205},
+ {DEVLINK_ATTR_PERM_CFG_EEE_PWR_SAVE_ENABLED, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 1, 208},
+ {DEVLINK_ATTR_PERM_CFG_PRE_OS_LINK_SPEED_D3, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 4, 210},
+ {DEVLINK_ATTR_PERM_CFG_MEDIA_AUTO_DETECT, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 1, 213},
+ {DEVLINK_ATTR_PERM_CFG_AUTONEG_PROTOCOL, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 8, 312},
+ {DEVLINK_ATTR_PERM_CFG_NPAR_NUM_PARTITIONS_PER_PORT, BNXT_DRV_PF,
+ BNXT_DRV_APPL_PORT, 8, 503},
+};
+
+#define BNXT_NUM_DRV_CFGPARAM ARRAY_SIZE(bnxt_drv_cfgparam_list)
+
+static int bnxt_nvm_read(struct bnxt *bp, int nvm_param, int idx,
+ void *buf, int size)
+{
+ struct hwrm_nvm_get_variable_input req = {0};
+ void *dest_data_addr = NULL;
+ dma_addr_t dest_data_dma_addr;
+ int rc;
+ int bytesize;
+
+ bytesize = (size + 7) / 8;
+ dest_data_addr = dma_alloc_coherent(&bp->pdev->dev, bytesize,
+ &dest_data_dma_addr, GFP_KERNEL);
+ if (!dest_data_addr) {
+ netdev_err(bp->dev, "dma_alloc_coherent failure\n");
+ return -ENOMEM;
+ }
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_VARIABLE, -1, -1);
+ req.dest_data_addr = cpu_to_le64(dest_data_dma_addr);
+ req.data_len = cpu_to_le16(size);
+ req.option_num = cpu_to_le16(nvm_param);
+ req.index_0 = cpu_to_le16(idx);
+ if (idx != 0)
+ req.dimensions = cpu_to_le16(1);
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+
+ memcpy(buf, dest_data_addr, bytesize);
+
+ dma_free_coherent(&bp->pdev->dev, bytesize, dest_data_addr,
+ dest_data_dma_addr);
+
+ return rc;
+}
+
+static int bnxt_nvm_write(struct bnxt *bp, int nvm_param, int idx,
+ const void *buf, int size)
+{
+ struct hwrm_nvm_set_variable_input req = {0};
+ void *src_data_addr = NULL;
+ dma_addr_t src_data_dma_addr;
+ int rc;
+ int bytesize;
+
+ bytesize = (size + 7) / 8;
+
+ src_data_addr = dma_alloc_coherent(&bp->pdev->dev, bytesize,
+ &src_data_dma_addr, GFP_KERNEL);
+ if (!src_data_addr) {
+ netdev_err(bp->dev, "dma_alloc_coherent failure\n");
+ return -ENOMEM;
+ }
+
+ memcpy(src_data_addr, buf, bytesize);
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_SET_VARIABLE, -1, -1);
+ req.src_data_addr = cpu_to_le64(src_data_dma_addr);
+ req.data_len = cpu_to_le16(size);
+ req.option_num = cpu_to_le16(nvm_param);
+ req.index_0 = cpu_to_le16(idx);
+ if (idx != 0)
+ req.dimensions = cpu_to_le16(1);
+
+ rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+
+ dma_free_coherent(&bp->pdev->dev, bytesize, src_data_addr,
+ src_data_dma_addr);
+
+ return 0;
+}
+
+static int bnxt_dl_config_set(struct devlink *devlink,
+ enum devlink_attr attr, u32 value,
+ u8 *restart_reqd)
+{
+ struct bnxt *bp = bnxt_get_bp_from_dl(devlink);
+ int i;
+ int idx = 0;
+ void *data;
+ int ret = 0;
+ u32 bytesize;
+ struct bnxt_drv_cfgparam *entry;
+
+ *restart_reqd = 0;
+
+ /* Find parameter in table */
+ for (i = 0; i < BNXT_NUM_DRV_CFGPARAM; i++) {
+ if (attr == bnxt_drv_cfgparam_list[i].attr) {
+ entry = &bnxt_drv_cfgparam_list[i];
+ break;
+ }
+ }
+
+ /* Not found */
+ if (i == BNXT_NUM_DRV_CFGPARAM)
+ return -EINVAL;
+
+ /* Check to see if this func type can access variable */
+ if (BNXT_PF(bp) && !(entry->func & BNXT_DRV_PF))
+ return -EOPNOTSUPP;
+ if (BNXT_VF(bp) && !(entry->func & BNXT_DRV_VF))
+ return -EOPNOTSUPP;
+
+ /* If parameter is per port or function, compute index */
+ if (entry->appl == BNXT_DRV_APPL_PORT) {
+ idx = bp->pf.port_id;
+ } else if (entry->appl == BNXT_DRV_APPL_FUNCTION) {
+ if (BNXT_PF(bp))
+ idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
+#ifdef CONFIG_BNXT_SRIOV
+ else
+ idx = bp->vf.fw_fid - BNXT_FIRST_VF_FID;
+#endif /* CONFIG_BNXT_SRIOV */
+ }
+
+ bytesize = (entry->bitlength + 7) / 8;
+ data = kmalloc(bytesize, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ if (bytesize == 1) {
+ u8 val8 = (value & 0xff);
+
+ memcpy(data, &val8, sizeof(u8));
+ } else if (bytesize == 2) {
+ u16 val16 = (value & 0xffff);
+
+ memcpy(data, &val16, sizeof(u16));
+ } else {
+ memcpy(data, &value, sizeof(u32));
+ }
+
+ ret = bnxt_nvm_write(bp, entry->nvm_param, idx, data,
+ entry->bitlength);
+
+ /* Restart required for all nvm parameter writes */
+ *restart_reqd = 1;
+
+ kfree(data);
+
+ return ret;
+}
+
+static int bnxt_dl_config_get(struct devlink *devlink,
+ enum devlink_attr attr, u32 *value)
+{
+ struct bnxt *bp = bnxt_get_bp_from_dl(devlink);
+
+ int i;
+ int idx = 0;
+ void *data;
+ int ret = 0;
+ u32 bytesize;
+ struct bnxt_drv_cfgparam *entry;
+
+ /* Find parameter in table */
+ for (i = 0; i < BNXT_NUM_DRV_CFGPARAM; i++) {
+ if (attr == bnxt_drv_cfgparam_list[i].attr) {
+ entry = &bnxt_drv_cfgparam_list[i];
+ break;
+ }
+ }
+
+ /* Not found */
+ if (i == BNXT_NUM_DRV_CFGPARAM)
+ return -EINVAL;
+
+ /* Check to see if this func type can access variable */
+ if (BNXT_PF(bp) && !(entry->func & BNXT_DRV_PF))
+ return -EOPNOTSUPP;
+ if (BNXT_VF(bp) && !(entry->func & BNXT_DRV_VF))
+ return -EOPNOTSUPP;
+
+ /* If parameter is per port or function, compute index */
+ if (entry->appl == BNXT_DRV_APPL_PORT) {
+ idx = bp->pf.port_id;
+ } else if (entry->appl == BNXT_DRV_APPL_FUNCTION) {
+ if (BNXT_PF(bp))
+ idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
+#ifdef CONFIG_BNXT_SRIOV
+ else
+ idx = bp->vf.fw_fid - BNXT_FIRST_VF_FID;
+#endif /* CONFIG_BNXT_SRIOV */
+ }
+
+ /* Allocate space, retrieve value, and copy to result */
+ bytesize = (entry->bitlength + 7) / 8;
+ data = kmalloc(bytesize, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ ret = bnxt_nvm_read(bp, entry->nvm_param, idx, data, entry->bitlength);
+
+ if (ret) {
+ kfree(data);
+ return ret;
+ }
+
+ if (bytesize == 1) {
+ u8 val;
+
+ memcpy(&val, data, sizeof(u8));
+ *value = val;
+ } else if (bytesize == 2) {
+ u16 val;
+
+ memcpy(&val, data, sizeof(u16));
+ *value = val;
+ } else {
+ u32 val;
+
+ memcpy(&val, data, sizeof(u32));
+ *value = val;
+ }
+
+ kfree(data);
+
+ return 0;
+}
+
+static struct devlink_ops bnxt_dl_ops = {
#ifdef CONFIG_BNXT_SRIOV
.eswitch_mode_set = bnxt_dl_eswitch_mode_set,
.eswitch_mode_get = bnxt_dl_eswitch_mode_get,
#endif /* CONFIG_BNXT_SRIOV */
+ .config_get = bnxt_dl_config_get,
+ .config_set = bnxt_dl_config_set,
};
int bnxt_dl_register(struct bnxt *bp)
@@ -26,12 +324,12 @@ int bnxt_dl_register(struct bnxt *bp)
struct devlink *dl;
int rc;
- if (!pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV))
- return 0;
-
- if (bp->hwrm_spec_code < 0x10800) {
+ if ((!pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV)) ||
+ bp->hwrm_spec_code < 0x10800) {
+ /* eswitch switchdev mode not supported */
+ bnxt_dl_ops.eswitch_mode_set = NULL;
+ bnxt_dl_ops.eswitch_mode_get = NULL;
netdev_warn(bp->dev, "Firmware does not support SR-IOV E-Switch SWITCHDEV mode.\n");
- return -ENOTSUPP;
}
dl = devlink_alloc(&bnxt_dl_ops, sizeof(struct bnxt_dl));
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
index e92a35d..ee28890 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
@@ -10,6 +10,23 @@
#ifndef BNXT_DEVLINK_H
#define BNXT_DEVLINK_H
+#define BNXT_DRV_PF 1
+#define BNXT_DRV_VF 2
+
+enum bnxt_drv_appl {
+ BNXT_DRV_APPL_SHARED,
+ BNXT_DRV_APPL_PORT,
+ BNXT_DRV_APPL_FUNCTION
+};
+
+struct bnxt_drv_cfgparam {
+ enum devlink_attr attr;
+ u8 func; /* BNXT_DRV_PF | BNXT_DRV_VF */
+ enum bnxt_drv_appl appl; /* applicability (shared, func, port) */
+ u32 bitlength; /* length, in bits */
+ u32 nvm_param;
+};
+
/* Struct to hold housekeeping info needed by devlink interface */
struct bnxt_dl {
struct bnxt *bp; /* back ptr to the controlling dev */
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
index cb04cc7..8c25731 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h
@@ -5676,6 +5676,106 @@ struct hwrm_nvm_install_update_cmd_err {
u8 unused_0[7];
};
+/* hwrm_nvm_get_variable */
+/* Input (40 bytes) */
+struct hwrm_nvm_get_variable_input {
+ __le16 req_type;
+ __le16 cmpl_ring;
+ __le16 seq_id;
+ __le16 target_id;
+ __le64 resp_addr;
+ __le64 dest_data_addr;
+ __le16 data_len;
+ __le16 option_num;
+ #define NVM_GET_VARIABLE_REQ_OPTION_NUM_RSVD_0 0x0UL
+ #define NVM_GET_VARIABLE_REQ_OPTION_NUM_RSVD_FFFF 0xffffUL
+ __le16 dimensions;
+ __le16 index_0;
+ __le16 index_1;
+ __le16 index_2;
+ __le16 index_3;
+ u8 flags;
+ #define NVM_GET_VARIABLE_REQ_FLAGS_FACTORY_DFLT 0x1UL
+ u8 unused_0;
+};
+
+/* Output (16 bytes) */
+struct hwrm_nvm_get_variable_output {
+ __le16 error_code;
+ __le16 req_type;
+ __le16 seq_id;
+ __le16 resp_len;
+ __le16 data_len;
+ __le16 option_num;
+ #define NVM_GET_VARIABLE_RESP_OPTION_NUM_RSVD_0 0x0UL
+ #define NVM_GET_VARIABLE_RESP_OPTION_NUM_RSVD_FFFF 0xffffUL
+ u8 unused_0;
+ u8 unused_1;
+ u8 unused_2;
+ u8 valid;
+};
+
+/* Command specific Error Codes (8 bytes) */
+struct hwrm_nvm_get_variable_cmd_err {
+ u8 code;
+ #define NVM_GET_VARIABLE_CMD_ERR_CODE_UNKNOWN 0x0UL
+ #define NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST 0x1UL
+ #define NVM_GET_VARIABLE_CMD_ERR_CODE_CORRUPT_VAR 0x2UL
+ #define NVM_GET_VARIABLE_CMD_ERR_CODE_LEN_TOO_SHORT 0x3UL
+ u8 unused_0[7];
+};
+
+/* hwrm_nvm_set_variable */
+/* Input (40 bytes) */
+struct hwrm_nvm_set_variable_input {
+ __le16 req_type;
+ __le16 cmpl_ring;
+ __le16 seq_id;
+ __le16 target_id;
+ __le64 resp_addr;
+ __le64 src_data_addr;
+ __le16 data_len;
+ __le16 option_num;
+ #define NVM_SET_VARIABLE_REQ_OPTION_NUM_RSVD_0 0x0UL
+ #define NVM_SET_VARIABLE_REQ_OPTION_NUM_RSVD_FFFF 0xffffUL
+ __le16 dimensions;
+ __le16 index_0;
+ __le16 index_1;
+ __le16 index_2;
+ __le16 index_3;
+ u8 flags;
+ #define NVM_SET_VARIABLE_REQ_FLAGS_FORCE_FLUSH 0x1UL
+ #define NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_MASK 0xeUL
+ #define NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_SFT 1
+ #define NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_NONE (0x0UL << 1)
+ #define NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_HMAC_SHA1 (0x1UL << 1)
+ #define NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_LAST \
+ NVM_SET_VARIABLE_REQ_FLAGS_ENCRYPT_MODE_HMAC_SHA1
+ u8 unused_0;
+};
+
+/* Output (16 bytes) */
+struct hwrm_nvm_set_variable_output {
+ __le16 error_code;
+ __le16 req_type;
+ __le16 seq_id;
+ __le16 resp_len;
+ __le32 unused_0;
+ u8 unused_1;
+ u8 unused_2;
+ u8 unused_3;
+ u8 valid;
+};
+
+/* Command specific Error Codes (8 bytes) */
+struct hwrm_nvm_set_variable_cmd_err {
+ u8 code;
+ #define NVM_SET_VARIABLE_CMD_ERR_CODE_UNKNOWN 0x0UL
+ #define NVM_SET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST 0x1UL
+ #define NVM_SET_VARIABLE_CMD_ERR_CODE_CORRUPT_VAR 0x2UL
+ u8 unused_0[7];
+};
+
/* hwrm_selftest_qlist */
/* Input (16 bytes) */
struct hwrm_selftest_qlist_input {
--
2.7.4
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