[dpdk-dev] [PATCH v2 20/37] net/ice/base: ensure only valid bits are set

[Qi Zhang]

In the ice_aq_set_phy_cfg AQ command, the 16.4 bit is reserved.
This patch will make sure that this bit will never be set to 1.

Signed-off-by: Chinh T Cao <chinh.t....@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell...@intel.com>
Signed-off-by: Qi Zhang <qi.z.zh...@intel.com>
---
 drivers/net/ice/base/ice_adminq_cmd.h | 1 +
 drivers/net/ice/base/ice_common.c     | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/net/ice/base/ice_adminq_cmd.h 
b/drivers/net/ice/base/ice_adminq_cmd.h
index ca3d40c8b..70cd0604b 100644
--- a/drivers/net/ice/base/ice_adminq_cmd.h
+++ b/drivers/net/ice/base/ice_adminq_cmd.h
@@ -1327,6 +1327,7 @@ struct ice_aqc_set_phy_cfg_data {
        __le64 phy_type_low; /* Use values from ICE_PHY_TYPE_LOW_* */
        __le64 phy_type_high; /* Use values from ICE_PHY_TYPE_HIGH_* */
        u8 caps;
+#define ICE_AQ_PHY_ENA_VALID_MASK      MAKEMASK(0xef, 0)
 #define ICE_AQ_PHY_ENA_TX_PAUSE_ABILITY        BIT(0)
 #define ICE_AQ_PHY_ENA_RX_PAUSE_ABILITY        BIT(1)
 #define ICE_AQ_PHY_ENA_LOW_POWER       BIT(2)
diff --git a/drivers/net/ice/base/ice_common.c 
b/drivers/net/ice/base/ice_common.c
index f5cbd47c3..1c381b5e2 100644
--- a/drivers/net/ice/base/ice_common.c
+++ b/drivers/net/ice/base/ice_common.c
@@ -2351,6 +2351,15 @@ ice_aq_set_phy_cfg(struct ice_hw *hw, u8 lport,
        if (!cfg)
                return ICE_ERR_PARAM;
 
+       /* Ensure that only valid bits of cfg->caps can be turned on. */
+       if (cfg->caps & ~ICE_AQ_PHY_ENA_VALID_MASK) {
+               ice_debug(hw, ICE_DBG_PHY,
+                         "Invalid bit is set in ice_aqc_set_phy_cfg_data->caps 
: 0x%x\n",
+                         cfg->caps);
+
+               cfg->caps &= ICE_AQ_PHY_ENA_VALID_MASK;
+       }
+
        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_phy_cfg);
        desc.params.set_phy.lport_num = lport;
        desc.flags |= CPU_TO_LE16(ICE_AQ_FLAG_RD);
-- 
2.13.6