From: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Date: Wed, 14 Aug 2019 01:11:53 -0700
Subject: qed: Add driver API for flashing the config attributes.
Patch-mainline: v5.4-rc1
Git-commit: 0dabbe1bb3a4cf47d0cf52828355293f18acdae9
References: jsc#SLE-8401
The patch adds driver interface for reading the config attributes from user
provided buffer, and updates these values on nvm config flash partition.
This is basically an expansion of our existing ethtool -f implementation.
The management FW has exposed an additional method of configuring some of
the nvram options, and this makes use of that. This implementation will
come into use when newer FW files which contain configuration directives
employing this API will be provided to ethtool -f.
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/qlogic/qed/qed_main.c | 68 +++++++++++++++++++++++++++++
include/linux/qed/qed_if.h | 1
2 files changed, 69 insertions(+)
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -67,6 +67,8 @@
#define QED_ROCE_QPS (8192)
#define QED_ROCE_DPIS (8)
#define QED_RDMA_SRQS QED_ROCE_QPS
+#define QED_NVM_CFG_SET_FLAGS 0xE
+#define QED_NVM_CFG_SET_PF_FLAGS 0x1E
static char version[] =
"QLogic FastLinQ 4xxxx Core Module qed " DRV_MODULE_VERSION "\n";
@@ -2233,6 +2235,69 @@ static int qed_nvm_flash_image_validate(
return 0;
}
+/* Binary file format -
+ * /----------------------------------------------------------------------\
+ * 0B | 0x5 [command index] |
+ * 4B | Entity ID | Reserved | Number of config attributes |
+ * 8B | Config ID | Length | Value |
+ * | |
+ * \----------------------------------------------------------------------/
+ * There can be several cfg_id-Length-Value sets as specified by 'Number of...'.
+ * Entity ID - A non zero entity value for which the config need to be updated.
+ *
+ * The API parses config attributes from the user provided buffer and flashes
+ * them to the respective NVM path using Management FW inerface.
+ */
+static int qed_nvm_flash_cfg_write(struct qed_dev *cdev, const u8 **data)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ u8 entity_id, len, buf[32];
+ struct qed_ptt *ptt;
+ u16 cfg_id, count;
+ int rc = 0, i;
+ u32 flags;
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return -EAGAIN;
+
+ /* NVM CFG ID attribute header */
+ *data += 4;
+ entity_id = **data;
+ *data += 2;
+ count = *((u16 *)*data);
+ *data += 2;
+
+ DP_VERBOSE(cdev, NETIF_MSG_DRV,
+ "Read config ids: entity id %02x num _attrs = %0d\n",
+ entity_id, count);
+ /* NVM CFG ID attributes */
+ for (i = 0; i < count; i++) {
+ cfg_id = *((u16 *)*data);
+ *data += 2;
+ len = **data;
+ (*data)++;
+ memcpy(buf, *data, len);
+ *data += len;
+
+ flags = entity_id ? QED_NVM_CFG_SET_PF_FLAGS :
+ QED_NVM_CFG_SET_FLAGS;
+
+ DP_VERBOSE(cdev, NETIF_MSG_DRV,
+ "cfg_id = %d len = %d\n", cfg_id, len);
+ rc = qed_mcp_nvm_set_cfg(hwfn, ptt, cfg_id, entity_id, flags,
+ buf, len);
+ if (rc) {
+ DP_ERR(cdev, "Error %d configuring %d\n", rc, cfg_id);
+ break;
+ }
+ }
+
+ qed_ptt_release(hwfn, ptt);
+
+ return rc;
+}
+
static int qed_nvm_flash(struct qed_dev *cdev, const char *name)
{
const struct firmware *image;
@@ -2274,6 +2339,9 @@ static int qed_nvm_flash(struct qed_dev
rc = qed_nvm_flash_image_access(cdev, &data,
&check_resp);
break;
+ case QED_NVM_FLASH_CMD_NVM_CFG_ID:
+ rc = qed_nvm_flash_cfg_write(cdev, &data);
+ break;
default:
DP_ERR(cdev, "Unknown command %08x\n", cmd_type);
rc = -EINVAL;
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -804,6 +804,7 @@ enum qed_nvm_flash_cmd {
QED_NVM_FLASH_CMD_FILE_DATA = 0x2,
QED_NVM_FLASH_CMD_FILE_START = 0x3,
QED_NVM_FLASH_CMD_NVM_CHANGE = 0x4,
+ QED_NVM_FLASH_CMD_NVM_CFG_ID = 0x5,
QED_NVM_FLASH_CMD_NVM_MAX,
};