ice : Ensure only valid bits are set in ice_aq_set_phy_cfg

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.cao@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
index 242c784..8ff4389 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
@@ -953,8 +953,9 @@ 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_TX_PAUSE_ABILITY                BIT(0)
-#define ICE_AQ_PHY_ENA_RX_PAUSE_ABILITY                BIT(1)
+#define ICE_AQ_PHY_ENA_VALID_MASK      ICE_M(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)
 #define ICE_AQ_PHY_ENA_LINK            BIT(3)
 #define ICE_AQ_PHY_ENA_AUTO_LINK_UPDT  BIT(5)

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 63f0034..2dc5c32 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -1929,6 +1929,15 @@ 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);
@@ -2027,8 +2036,10 @@ ice_set_fc(struct ice_port_info *pi, u8 *aq_failures, bool ena_auto_link_update)
        /* clear the old pause settings */
        cfg.caps = pcaps->caps & ~(ICE_AQC_PHY_EN_TX_LINK_PAUSE |
                                   ICE_AQC_PHY_EN_RX_LINK_PAUSE);
+
        /* set the new capabilities */
        cfg.caps |= pause_mask;
+
        /* If the capabilities have changed, then set the new config */
        if (cfg.caps != pcaps->caps) {
                int retry_count, retry_max = 10;

diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index 17086d5..560b0d2 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -24,6 +24,7 @@ static inline bool ice_is_tc_ena(u8 bitmap, u8 tc)
 /* debug masks - set these bits in hw->debug_mask to control output */
 #define ICE_DBG_INIT           BIT_ULL(1)
 #define ICE_DBG_LINK           BIT_ULL(4)
+#define ICE_DBG_PHY            BIT_ULL(5)
 #define ICE_DBG_QCTX           BIT_ULL(6)
 #define ICE_DBG_NVM            BIT_ULL(7)
 #define ICE_DBG_LAN            BIT_ULL(8)