On Tue, Jan 9, 2018 at 7:48 PM, Leon Romanovsky <leon@xxxxxxxxxx> wrote:
> On Fri, Jan 05, 2018 at 06:40:31AM -0500, Devesh Sharma wrote:
>> From: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
>>
>> The device now reports firmware version thus, removing
>> the hard coded values of the FW version string and
>> redundant fw_rev hook from sysfs. Adding code to query
>> firmware version from underlying device and report it
>> through the kernel verb to get firmware version string.
>>
>> Signed-off-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
>> Signed-off-by: Devesh Sharma <devesh.sharma@xxxxxxxxxxxx>
>> ---
>> drivers/infiniband/hw/bnxt_re/ib_verbs.c | 14 ++++++++++++--
>> drivers/infiniband/hw/bnxt_re/ib_verbs.h | 1 +
>> drivers/infiniband/hw/bnxt_re/main.c | 11 +----------
>> drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 3 ++-
>> drivers/infiniband/hw/bnxt_re/qplib_sp.c | 25 ++++++++++++++++++++++++-
>> drivers/infiniband/hw/bnxt_re/qplib_sp.h | 3 ++-
>> 6 files changed, 42 insertions(+), 15 deletions(-)
>>
>> diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
>> index 6dd2fe1..8a80e95 100644
>> --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
>> +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
>> @@ -141,8 +141,9 @@ int bnxt_re_query_device(struct ib_device *ibdev,
>> struct bnxt_qplib_dev_attr *dev_attr = &rdev->dev_attr;
>>
>> memset(ib_attr, 0, sizeof(*ib_attr));
>> -
>> - ib_attr->fw_ver = (u64)(unsigned long)(dev_attr->fw_ver);
>> + memcpy(&ib_attr->fw_ver, dev_attr->fw_ver,
>> + min(sizeof(dev_attr->fw_ver),
>> + sizeof(ib_attr->fw_ver)));
>> bnxt_qplib_get_guid(rdev->netdev->dev_addr,
>> (u8 *)&ib_attr->sys_image_guid);
>> ib_attr->max_mr_size = BNXT_RE_MAX_MR_SIZE;
>> @@ -281,6 +282,15 @@ int bnxt_re_get_port_immutable(struct ib_device *ibdev, u8 port_num,
>> return 0;
>> }
>>
>> +void bnxt_re_query_fw_str(struct ib_device *ibdev, char *str)
>> +{
>> + struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
>> +
>> + snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d.%d",
>> + rdev->dev_attr.fw_ver[0], rdev->dev_attr.fw_ver[1],
>> + rdev->dev_attr.fw_ver[2], rdev->dev_attr.fw_ver[3]);
>> +}
>> +
>> int bnxt_re_query_pkey(struct ib_device *ibdev, u8 port_num,
>> u16 index, u16 *pkey)
>> {
>> diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
>> index 1df11ed2..66dd8d2 100644
>> --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
>> +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
>> @@ -143,6 +143,7 @@ int bnxt_re_query_port(struct ib_device *ibdev, u8 port_num,
>> struct ib_port_attr *port_attr);
>> int bnxt_re_get_port_immutable(struct ib_device *ibdev, u8 port_num,
>> struct ib_port_immutable *immutable);
>> +void bnxt_re_query_fw_str(struct ib_device *ibdev, char *str);
>> int bnxt_re_query_pkey(struct ib_device *ibdev, u8 port_num,
>> u16 index, u16 *pkey);
>> int bnxt_re_del_gid(struct ib_device *ibdev, u8 port_num,
>> diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
>> index d825df0..38a5d4b 100644
>> --- a/drivers/infiniband/hw/bnxt_re/main.c
>> +++ b/drivers/infiniband/hw/bnxt_re/main.c
>> @@ -572,6 +572,7 @@ static int bnxt_re_register_ib(struct bnxt_re_dev *rdev)
>>
>> ibdev->query_port = bnxt_re_query_port;
>> ibdev->get_port_immutable = bnxt_re_get_port_immutable;
>> + ibdev->get_dev_fw_str = bnxt_re_query_fw_str;
>> ibdev->query_pkey = bnxt_re_query_pkey;
>> ibdev->query_gid = bnxt_re_query_gid;
>> ibdev->get_netdev = bnxt_re_get_netdev;
>> @@ -623,14 +624,6 @@ static ssize_t show_rev(struct device *device, struct device_attribute *attr,
>> return scnprintf(buf, PAGE_SIZE, "0x%x\n", rdev->en_dev->pdev->vendor);
>> }
>>
>> -static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
>> - char *buf)
>> -{
>> - struct bnxt_re_dev *rdev = to_bnxt_re_dev(device, ibdev.dev);
>> -
>> - return scnprintf(buf, PAGE_SIZE, "%s\n", rdev->dev_attr.fw_ver);
>> -}
>> -
>> static ssize_t show_hca(struct device *device, struct device_attribute *attr,
>> char *buf)
>> {
>> @@ -640,12 +633,10 @@ static ssize_t show_hca(struct device *device, struct device_attribute *attr,
>> }
>>
>> static DEVICE_ATTR(hw_rev, 0444, show_rev, NULL);
>> -static DEVICE_ATTR(fw_rev, 0444, show_fw_ver, NULL);
>> static DEVICE_ATTR(hca_type, 0444, show_hca, NULL);
>>
>> static struct device_attribute *bnxt_re_attributes[] = {
>> &dev_attr_hw_rev,
>> - &dev_attr_fw_rev,
>> &dev_attr_hca_type
>> };
>>
>> diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
>> index bb5574a..6a3633a 100644
>> --- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
>> +++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
>> @@ -93,7 +93,8 @@ static int __send_message(struct bnxt_qplib_rcfw *rcfw, struct cmdq_base *req,
>> opcode = req->opcode;
>> if (!test_bit(FIRMWARE_INITIALIZED_FLAG, &rcfw->flags) &&
>> (opcode != CMDQ_BASE_OPCODE_QUERY_FUNC &&
>> - opcode != CMDQ_BASE_OPCODE_INITIALIZE_FW)) {
>> + opcode != CMDQ_BASE_OPCODE_INITIALIZE_FW &&
>> + opcode != CMDQ_BASE_OPCODE_QUERY_VERSION)) {
>> dev_err(&rcfw->pdev->dev,
>> "QPLIB: RCFW not initialized, reject opcode 0x%x",
>> opcode);
>> diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
>> index f5450b7..60377a3 100644
>> --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
>> +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
>> @@ -64,6 +64,29 @@ static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw)
>> return !!(pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ);
>> }
>>
>> +static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
>> + char *fw_ver)
>> +{
>> + struct cmdq_query_version req;
>> + struct creq_query_version_resp resp;
>> + u16 cmd_flags = 0;
>> + int rc = 0;
>> +
>> + RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
>> +
>> + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
>> + (void *)&resp, NULL, 0);
>> + if (rc) {
>> + dev_err(&rcfw->pdev->dev, "QPLIB: Failed to query version");
>> + return;
>> + }
>
> What will be the result on old FW and new kernel? Will it print error and fail?
>
>> +
>> + fw_ver[0] = resp.fw_maj;
>> + fw_ver[1] = resp.fw_minor;
>> + fw_ver[2] = resp.fw_bld;
>> + fw_ver[3] = resp.fw_rsvd;
>> +}
>> +
>
> Thanks
With the older f/ws There will be an error message in the syslog and
version string will be all 0s.
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