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Message-ID: <20231218194833.3397815-8-anthony.l.nguyen@intel.com>
Date: Mon, 18 Dec 2023 11:48:22 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
kuba@...nel.org,
pabeni@...hat.com,
edumazet@...gle.com,
netdev@...r.kernel.org
Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>,
anthony.l.nguyen@...el.com,
Marcin Szycik <marcin.szycik@...ux.intel.com>,
Simon Horman <horms@...nel.org>,
Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com>
Subject: [PATCH net-next 07/15] ice: fix pre-shifted bit usage
From: Jesse Brandeburg <jesse.brandeburg@...el.com>
While converting to FIELD_PREP() and FIELD_GET(), it was noticed that
some of the RSS defines had *included* the shift in their definitions.
This is completely outside of normal, such that a developer could easily
make a mistake and shift at the usage site (like when using
FIELD_PREP()).
Rename the defines and set them to the "pre-shifted values" so they
match the template the driver normally uses for masks and the member
bits of the mask, which also allows the driver to use FIELD_PREP
correctly with these values. Use GENMASK() for this changed MASK value.
Do the same for the VLAN EMODE defines as well.
Reviewed-by: Marcin Szycik <marcin.szycik@...ux.intel.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
drivers/net/ethernet/intel/ice/ice_adminq_cmd.h | 10 +++++-----
drivers/net/ethernet/intel/ice/ice_lib.c | 3 ++-
.../net/ethernet/intel/ice/ice_vsi_vlan_lib.c | 16 +++++++++++-----
3 files changed, 18 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
index 12c510bb1d9b..6a5e974a1776 100644
--- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
@@ -422,10 +422,10 @@ struct ice_aqc_vsi_props {
#define ICE_AQ_VSI_INNER_VLAN_INSERT_PVID BIT(2)
#define ICE_AQ_VSI_INNER_VLAN_EMODE_S 3
#define ICE_AQ_VSI_INNER_VLAN_EMODE_M (0x3 << ICE_AQ_VSI_INNER_VLAN_EMODE_S)
-#define ICE_AQ_VSI_INNER_VLAN_EMODE_STR_BOTH (0x0 << ICE_AQ_VSI_INNER_VLAN_EMODE_S)
-#define ICE_AQ_VSI_INNER_VLAN_EMODE_STR_UP (0x1 << ICE_AQ_VSI_INNER_VLAN_EMODE_S)
-#define ICE_AQ_VSI_INNER_VLAN_EMODE_STR (0x2 << ICE_AQ_VSI_INNER_VLAN_EMODE_S)
-#define ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING (0x3 << ICE_AQ_VSI_INNER_VLAN_EMODE_S)
+#define ICE_AQ_VSI_INNER_VLAN_EMODE_STR_BOTH 0x0U
+#define ICE_AQ_VSI_INNER_VLAN_EMODE_STR_UP 0x1U
+#define ICE_AQ_VSI_INNER_VLAN_EMODE_STR 0x2U
+#define ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING 0x3U
u8 inner_vlan_reserved2[3];
/* ingress egress up sections */
__le32 ingress_table; /* bitmap, 3 bits per up */
@@ -491,7 +491,7 @@ struct ice_aqc_vsi_props {
#define ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_S 2
#define ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_M (0xF << ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_S)
#define ICE_AQ_VSI_Q_OPT_RSS_HASH_S 6
-#define ICE_AQ_VSI_Q_OPT_RSS_HASH_M (0x3 << ICE_AQ_VSI_Q_OPT_RSS_HASH_S)
+#define ICE_AQ_VSI_Q_OPT_RSS_HASH_M GENMASK(7, 6)
#define ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ 0x0U
#define ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ 0x1U
#define ICE_AQ_VSI_Q_OPT_RSS_HASH_XOR 0x2U
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index bbd639186b82..ca6fdc1269ae 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -984,7 +984,8 @@ static void ice_set_dflt_vsi_ctx(struct ice_hw *hw, struct ice_vsi_ctx *ctxt)
*/
if (ice_is_dvm_ena(hw)) {
ctxt->info.inner_vlan_flags |=
- ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING;
+ FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M,
+ ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING);
ctxt->info.outer_vlan_flags =
FIELD_PREP(ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M,
ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL);
diff --git a/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c b/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c
index 699bcb1e2f3a..2e9ad27cb9d1 100644
--- a/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c
@@ -131,6 +131,7 @@ static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena)
{
struct ice_hw *hw = &vsi->back->hw;
struct ice_vsi_ctx *ctxt;
+ u8 *ivf;
int err;
/* do not allow modifying VLAN stripping when a port VLAN is configured
@@ -143,19 +144,24 @@ static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena)
if (!ctxt)
return -ENOMEM;
+ ivf = &ctxt->info.inner_vlan_flags;
+
/* Here we are configuring what the VSI should do with the VLAN tag in
* the Rx packet. We can either leave the tag in the packet or put it in
* the Rx descriptor.
*/
- if (ena)
+ if (ena) {
/* Strip VLAN tag from Rx packet and put it in the desc */
- ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_EMODE_STR_BOTH;
- else
+ *ivf = FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M,
+ ICE_AQ_VSI_INNER_VLAN_EMODE_STR_BOTH);
+ } else {
/* Disable stripping. Leave tag in packet */
- ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING;
+ *ivf = FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M,
+ ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING);
+ }
/* Allow all packets untagged/tagged */
- ctxt->info.inner_vlan_flags |= ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL;
+ *ivf |= ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL;
ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
--
2.41.0
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