I ran this driver through the evaluation copy of PVS studio and it reported many warnings you should address.
Not all of them are valid, the tool seems to have a lot of false positives.

MESSAGES
LocationCodeMessage
Fails/Info
rnp_mac.c (258)
V610Undefined behavior. Check the shift operator '>>'. The right operand ('....' = [0x0..0xFFFFFFFFFFFFFFFF]) is greater than or equal to the length in bits of the promoted left operand.
rnp_mac.c (81)
V1037Two or more case-branches perform the same actions. Check lines: 81, 84
rnp_mac.c (205)
V525The code contains the collection of similar blocks. Check items 'flt_reg', 'vlan_reg', 'vlan_reg' in lines 205, 206, 207.
rnp_mac.c (209)
V525The code contains the collection of similar blocks. Check items 'flt_reg', 'vlan_reg', 'vlan_reg' in lines 209, 210, 211.
rnp_mbx.c (398)
V547Expression '!ret_val' is always true.
rnp_mbx_fw.c (259)
V530The return value of function 'rte_fls_u32' is required to be utilized.
rnp_mbx_fw.c (256)
V519The 'is_sgmii_bits' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 255, 256.
rnp_mbx_fw.c (177)
V1086A call of the 'memcpy' function will lead to underflow of the buffer 'cookie->priv'.
rnp_mbx_fw.c (332)
V1086A call of the 'memcpy' function will lead to underflow of the buffer 'mac->addrs[nr_lane].mac'.
rnp_mbx_fw.c (271)
V576Incorrect format. Consider checking the 15th actual argument of the 'rte_log' function. The SIGNED integer type argument is expected.
rnp_mbx_fw.c (389)
V1048The 'phy_meta->link_autoneg' variable was assigned the same value.
rnp_osdep.h (126)
V576Incorrect format. Consider checking the fourth actual argument of the 'snprintf' function. The memsize type argument is expected.
rnp_osdep.h (32)
V677Custom declaration of a standard 'dma_addr_t' type. The declaration from system header files should be used instead.
rnp_ethdev.c (750)
V530The return value of function 'rte_fls_u32' is required to be utilized.
rnp_ethdev.c (1386)
V519The 'reg' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 1381, 1386.
rnp_ethdev.c (1003)
V547Expression 'frame_size < 64' is always false.
rnp_ethdev.c (1003)
V649There are two 'if' statements with identical conditional expressions. The first 'if' statement contains function return. This means that the second 'if' statement is senseless. Check lines: 988, 1003.
rnp_ethdev.c (583)
V684A value of the variable 'cvlan_ctrl' is not modified. Consider inspecting the expression. It is possible that '1' should be present instead of '0'.
rnp_ethdev.c (598)
V684A value of the variable 'svlan_ctrl' is not modified. Consider inspecting the expression. It is possible that '1' should be present instead of '0'.
rnp_ethdev.c (618)
V684A value of the variable 'ctrl' is not modified. Consider inspecting the expression. It is possible that '1' should be present instead of '0'.
rnp_ethdev.c (106)
V1032The pointer 'msgbuf' is cast to a more strictly aligned pointer type.
rnp_ethdev.c (254)
V1051Consider checking for misprints. It's possible that the 'dma_ctrl' should be checked here.
rnp_ethdev.c (1348)
V525The code contains the collection of similar blocks. Check items 'mac_stats', 'mac_stats', 'eth_stats' in lines 1348, 1354, 1360.
rnp_ethdev.c (1444)
V576Incorrect format. Consider checking the fifth actual argument of the 'rte_log' function. The SIGNED integer type argument is expected.
rnp_ethdev.c (1458)
V576Incorrect format. Consider checking the fifth actual argument of the 'rte_log' function. The SIGNED integer type argument is expected.
rnp_ethdev.c (110)
V641The size of the 'msgbuf' buffer is not a multiple of the element size of the type 'struct rnp_mbx_fw_cmd_reply'.
rnp_ethdev.c (113)
V641The size of the 'msgbuf' buffer is not a multiple of the element size of the type 'struct rnp_mbx_fw_cmd_req'.
rnp_ethdev.c (718)
V1027Pointer to an object of the 'rte_device' class is cast to unrelated 'rte_pci_device' class.
rnp_ethdev.c (1637)
V1027Pointer to an object of the 'rte_device' class is cast to unrelated 'rte_pci_device' class.
rnp_ethdev.c (1766)
V1027Pointer to an object of the 'rte_device' class is cast to unrelated 'rte_pci_device' class.
rnp_link.c (192)
V519The 'link.link_autoneg' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 186, 192.
rnp_link.c (359)
V547Expression '!port->attr.link_ready' is always true.
rnp_link.c (113)
V1048The 'lane' variable was assigned the same value.
rnp_rss.c (218)
V547Expression 'rss_hash_level == (2UL << 50)' is always false.
rnp_rxtx.c (1409)
V684A value of the variable 'txbd->d.cmd' is not modified. Consider inspecting the expression. It is possible that '1' should be present instead of '0'.
rnp_rxtx.c (253)
V576Incorrect format. Consider checking the tenth actual argument of the 'rte_log' function. The SIGNED integer type argument is expected.
rnp_rxtx.c (461)
V576Incorrect format. Consider checking the tenth actual argument of the 'rte_log' function. The SIGNED integer type argument is expected.
rnp_rxtx.c (1224)
V1027Pointer to an object of the 'rte_ether_hdr' class is cast to unrelated 'rte_vlan_hdr' class.

On Wed, Feb 12, 2025 at 7:34 AM Wenbo Cao <caowenbo@mucse.com> wrote:
For This patchset just to support the basic chip init work
and user can just found the eth_dev, but can't control more.
For Now just support 2*10g nic,the chip can support
2*10g,4*10g,4*1g,8*1g,8*10g.
The Feature rx side can support rx-cksum-offload,rss,vlan-filter
flow_clow,uncast_filter,mcast_filter,1588,Jumbo-frame
The Feature tx side can support tx-cksum-offload,tso,vxlan-tso
flow director base on ntuple pattern of tcp/udp/ip/ eth_hdr->type
for sriov is also support.

Because of the chip design defect, for multiple-port mode
one pci-bdf will have multiple-port (max can have four ports)
so this code must be care of one bdf init multiple-port.
v12:
  * fixed __rte_packed __deprecated__ compile issue.

v11:
  * fixed array-bounds issue when used rte_memcpy src addr is
  * not enough to hold align dst.
  * improve efficient_code advised by Stephen

v10:
  * fixed mingw windows meson issue
  * rnp not support windows for now.

v9:
  * fixed commit log format check by devtools.
  * fixed code compile issue.

v8:
  * fixed codespell issue.
  * fixed MAINTAINERS file

v7:
  * add support nic basic feature such as rss vlan strip/filter,
  * mtu-change recv/send scater-recv/mutltiple-send.
  * fixed code rationality, advised by Ferruh Yigit.
v6:
  * fixed the doc(rst) format problem advise by Thomas Monjalon

v5:
  * fixed the symbol name require by the style documentation

v4:
  * one patch has been forgot to upload :(

v3:
  * fixed http://dpdk.org/patch/129830 FreeBSD 13 compile Issue
  * change iobar type to void suggest by Stephen Hemminger
  * add KMOD_DEP support for vfio-pci
  * change run-cmd argument parse check for invalid extra_args

v2:
  * fixed MAINTAIN maillist fullname format
  * fixed driver/net/meson the order issue of new driver to driver list
  * improve virtual point function usage suggest by Stephen Hemminger

Wenbo Cao (28):
  net/rnp: add skeleton
  net/rnp: add ethdev probe and remove
  net/rnp: add log
  net/rnp: support mailbox basic operate
  net/rnp: add device init and uninit
  net/rnp: add get device information operation
  net/rnp: add support MAC promisc mode
  net/rnp: add queue setup and release operations
  net/rnp: add queue stop and start operations
  net/rnp: add support device start stop operations
  net/rnp: add RSS support operations
  net/rnp: add support link update operations
  net/rnp: add support link setup operations
  net/rnp: add Rx burst simple support
  net/rnp: add Tx burst simple support
  net/rnp: add MTU set operation
  net/rnp: add Rx scatter segment version
  net/rnp: add Tx multiple segment version
  net/rnp: add support basic stats operation
  net/rnp: add support xstats operation
  net/rnp: add unicast MAC filter operation
  net/rnp: add supported packet types
  net/rnp: add support Rx checksum offload
  net/rnp: add support Tx TSO offload
  net/rnp: support VLAN offloads
  net/rnp: add support VLAN filters operations
  net/rnp: add queue info operation
  net/rnp: support Rx/Tx burst mode info

 .mailmap                            |    1 +
 MAINTAINERS                         |    6 +
 doc/guides/nics/features/rnp.ini    |   33 +
 doc/guides/nics/index.rst           |    1 +
 doc/guides/nics/rnp.rst             |  101 ++
 drivers/net/meson.build             |    1 +
 drivers/net/rnp/base/meson.build    |   17 +
 drivers/net/rnp/base/rnp_bdq_if.c   |  398 ++++++
 drivers/net/rnp/base/rnp_bdq_if.h   |  154 +++
 drivers/net/rnp/base/rnp_bitrev.h   |   64 +
 drivers/net/rnp/base/rnp_common.c   |  103 ++
 drivers/net/rnp/base/rnp_common.h   |   17 +
 drivers/net/rnp/base/rnp_crc32.c    |   37 +
 drivers/net/rnp/base/rnp_crc32.h    |   10 +
 drivers/net/rnp/base/rnp_dma_regs.h |   68 +
 drivers/net/rnp/base/rnp_eth_regs.h |   90 ++
 drivers/net/rnp/base/rnp_fw_cmd.c   |  162 +++
 drivers/net/rnp/base/rnp_fw_cmd.h   |  357 ++++++
 drivers/net/rnp/base/rnp_hw.h       |  136 ++
 drivers/net/rnp/base/rnp_mac.c      |  366 ++++++
 drivers/net/rnp/base/rnp_mac.h      |   34 +
 drivers/net/rnp/base/rnp_mac_regs.h |  207 +++
 drivers/net/rnp/base/rnp_mbx.c      |  512 ++++++++
 drivers/net/rnp/base/rnp_mbx.h      |   58 +
 drivers/net/rnp/base/rnp_mbx_fw.c   |  499 ++++++++
 drivers/net/rnp/base/rnp_mbx_fw.h   |   24 +
 drivers/net/rnp/base/rnp_osdep.h    |  169 +++
 drivers/net/rnp/meson.build         |   27 +
 drivers/net/rnp/rnp.h               |  258 ++++
 drivers/net/rnp/rnp_ethdev.c        | 1841 +++++++++++++++++++++++++++
 drivers/net/rnp/rnp_link.c          |  439 +++++++
 drivers/net/rnp/rnp_link.h          |   38 +
 drivers/net/rnp/rnp_logs.h          |   36 +
 drivers/net/rnp/rnp_rss.c           |  367 ++++++
 drivers/net/rnp/rnp_rss.h           |   43 +
 drivers/net/rnp/rnp_rxtx.c          | 1815 ++++++++++++++++++++++++++
 drivers/net/rnp/rnp_rxtx.h          |  162 +++
 37 files changed, 8651 insertions(+)
 create mode 100644 doc/guides/nics/features/rnp.ini
 create mode 100644 doc/guides/nics/rnp.rst
 create mode 100644 drivers/net/rnp/base/meson.build
 create mode 100644 drivers/net/rnp/base/rnp_bdq_if.c
 create mode 100644 drivers/net/rnp/base/rnp_bdq_if.h
 create mode 100644 drivers/net/rnp/base/rnp_bitrev.h
 create mode 100644 drivers/net/rnp/base/rnp_common.c
 create mode 100644 drivers/net/rnp/base/rnp_common.h
 create mode 100644 drivers/net/rnp/base/rnp_crc32.c
 create mode 100644 drivers/net/rnp/base/rnp_crc32.h
 create mode 100644 drivers/net/rnp/base/rnp_dma_regs.h
 create mode 100644 drivers/net/rnp/base/rnp_eth_regs.h
 create mode 100644 drivers/net/rnp/base/rnp_fw_cmd.c
 create mode 100644 drivers/net/rnp/base/rnp_fw_cmd.h
 create mode 100644 drivers/net/rnp/base/rnp_hw.h
 create mode 100644 drivers/net/rnp/base/rnp_mac.c
 create mode 100644 drivers/net/rnp/base/rnp_mac.h
 create mode 100644 drivers/net/rnp/base/rnp_mac_regs.h
 create mode 100644 drivers/net/rnp/base/rnp_mbx.c
 create mode 100644 drivers/net/rnp/base/rnp_mbx.h
 create mode 100644 drivers/net/rnp/base/rnp_mbx_fw.c
 create mode 100644 drivers/net/rnp/base/rnp_mbx_fw.h
 create mode 100644 drivers/net/rnp/base/rnp_osdep.h
 create mode 100644 drivers/net/rnp/meson.build
 create mode 100644 drivers/net/rnp/rnp.h
 create mode 100644 drivers/net/rnp/rnp_ethdev.c
 create mode 100644 drivers/net/rnp/rnp_link.c
 create mode 100644 drivers/net/rnp/rnp_link.h
 create mode 100644 drivers/net/rnp/rnp_logs.h
 create mode 100644 drivers/net/rnp/rnp_rss.c
 create mode 100644 drivers/net/rnp/rnp_rss.h
 create mode 100644 drivers/net/rnp/rnp_rxtx.c
 create mode 100644 drivers/net/rnp/rnp_rxtx.h

--
2.48.1