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ice: Add support for VIRTCHNL_VF_OFFLOAD_VLAN_V2 

Add support for the VF driver to be able to request
VIRTCHNL_VF_OFFLOAD_VLAN_V2, negotiate its VLAN capabilities via
VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS, add/delete VLAN filters, and
enable/disable VLAN offloads.

VFs supporting VIRTCHNL_OFFLOAD_VLAN_V2 will be able to use the
following virtchnl opcodes:

VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS
VIRTCHNL_OP_ADD_VLAN_V2
VIRTCHNL_OP_DEL_VLAN_V2
VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2
VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2
VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2
VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2

Legacy VF drivers may expect the initial VLAN stripping settings to be
configured by the PF, so the PF initializes VLAN stripping based on the
VIRTCHNL_OP_GET_VF_RESOURCES opcode. However, with VLAN support via
VIRTCHNL_VF_OFFLOAD_VLAN_V2, this function is only expected to be used
for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN, which will only
be supported when a port VLAN is configured. Update the function
based on the new expectations. Also, change the message when the PF
can't enable/disable VLAN stripping to a dev_dbg() as this isn't fatal.

When a VF isn't in a port VLAN and it only supports
VIRTCHNL_VF_OFFLOAD_VLAN when Double VLAN Mode (DVM) is enabled, then
the PF needs to reject the VIRTCHNL_VF_OFFLOAD_VLAN capability and
configure the VF in software only VLAN mode. To do this add the new
function ice_vf_vsi_cfg_legacy_vlan_mode(), which updates the VF's
inner and outer ice_vsi_vlan_ops functions and sets up software only
VLAN mode.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Brett Creeley 2021-12-02 08:38:48 -08:00 committed by Tony Nguyen
parent 0d54d8f7a1
commit cc71de8fa1
6 changed files with 1226 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/intel/ice/ice_base.c
View File

@ -5,6 +5,7 @@
#include "ice_base.h"
#include "ice_lib.h"
#include "ice_dcb_lib.h"
#include "ice_virtchnl_pf.h"
static bool ice_alloc_rx_buf_zc(struct ice_rx_ring *rx_ring)
{

115
drivers/net/ethernet/intel/ice/ice_vf_vsi_vlan_ops.c
View File

@ -14,9 +14,20 @@ noop_vlan_arg(struct ice_vsi __always_unused *vsi,
return 0;
}
static int
noop_vlan(struct ice_vsi __always_unused *vsi)
{
return 0;
}
/**
* ice_vf_vsi_init_vlan_ops - Initialize default VSI VLAN ops for VF VSI
* @vsi: VF's VSI being configured
*
* If Double VLAN Mode (DVM) is enabled, assume that the VF supports the new
* VIRTCHNL_VF_VLAN_OFFLOAD_V2 capability and set up the VLAN ops accordingly.
* If SVM is enabled maintain the same level of VLAN support previous to
* VIRTCHNL_VF_VLAN_OFFLOAD_V2.
*/
void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi)
{
@ -44,6 +55,20 @@ void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi)
vlan_ops = &vsi->inner_vlan_ops;
vlan_ops->add_vlan = noop_vlan_arg;
vlan_ops->del_vlan = noop_vlan_arg;
vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
} else {
vlan_ops->del_vlan = ice_vsi_del_vlan;
vlan_ops->ena_stripping = ice_vsi_ena_outer_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_outer_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion;
/* setup inner VLAN ops */
vlan_ops = &vsi->inner_vlan_ops;
vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
@ -70,3 +95,93 @@ void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi)
}
}
}
/**
* ice_vf_vsi_cfg_dvm_legacy_vlan_mode - Config VLAN mode for old VFs in DVM
* @vsi: VF's VSI being configured
*
* This should only be called when Double VLAN Mode (DVM) is enabled, there
* is not a port VLAN enabled on this VF, and the VF negotiates
* VIRTCHNL_VF_OFFLOAD_VLAN.
*
* This function sets up the VF VSI's inner and outer ice_vsi_vlan_ops and also
* initializes software only VLAN mode (i.e. allow all VLANs). Also, use no-op
* implementations for any functions that may be called during the lifetime of
* the VF so these methods do nothing and succeed.
*/
void ice_vf_vsi_cfg_dvm_legacy_vlan_mode(struct ice_vsi *vsi)
{
struct ice_vf *vf = &vsi->back->vf[vsi->vf_id];
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_vsi_vlan_ops *vlan_ops;
if (!ice_is_dvm_ena(&vsi->back->hw) || ice_vf_is_port_vlan_ena(vf))
return;
vlan_ops = &vsi->outer_vlan_ops;
/* Rx VLAN filtering always disabled to allow software offloaded VLANs
* for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a
* port VLAN configured
*/
vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering;
/* Don't fail when attempting to enable Rx VLAN filtering */
vlan_ops->ena_rx_filtering = noop_vlan;
/* Tx VLAN filtering always disabled to allow software offloaded VLANs
* for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a
* port VLAN configured
*/
vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering;
/* Don't fail when attempting to enable Tx VLAN filtering */
vlan_ops->ena_tx_filtering = noop_vlan;
if (vlan_ops->dis_rx_filtering(vsi))
dev_dbg(dev, "Failed to disable Rx VLAN filtering for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
if (vlan_ops->dis_tx_filtering(vsi))
dev_dbg(dev, "Failed to disable Tx VLAN filtering for old VF without VIRTHCNL_VF_OFFLOAD_VLAN_V2 support\n");
/* All outer VLAN offloads must be disabled */
vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping;
vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion;
if (vlan_ops->dis_stripping(vsi))
dev_dbg(dev, "Failed to disable outer VLAN stripping for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
if (vlan_ops->dis_insertion(vsi))
dev_dbg(dev, "Failed to disable outer VLAN insertion for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
/* All inner VLAN offloads must be disabled */
vlan_ops = &vsi->inner_vlan_ops;
vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping;
vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion;
if (vlan_ops->dis_stripping(vsi))
dev_dbg(dev, "Failed to disable inner VLAN stripping for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
if (vlan_ops->dis_insertion(vsi))
dev_dbg(dev, "Failed to disable inner VLAN insertion for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
}
/**
* ice_vf_vsi_cfg_svm_legacy_vlan_mode - Config VLAN mode for old VFs in SVM
* @vsi: VF's VSI being configured
*
* This should only be called when Single VLAN Mode (SVM) is enabled, there is
* not a port VLAN enabled on this VF, and the VF negotiates
* VIRTCHNL_VF_OFFLOAD_VLAN.
*
* All of the normal SVM VLAN ops are identical for this case. However, by
* default Rx VLAN filtering should be turned off by default in this case.
*/
void ice_vf_vsi_cfg_svm_legacy_vlan_mode(struct ice_vsi *vsi)
{
struct ice_vf *vf = &vsi->back->vf[vsi->vf_id];
if (ice_is_dvm_ena(&vsi->back->hw) || ice_vf_is_port_vlan_ena(vf))
return;
if (vsi->inner_vlan_ops.dis_rx_filtering(vsi))
dev_dbg(ice_pf_to_dev(vf->pf), "Failed to disable Rx VLAN filtering for old VF with VIRTCHNL_VF_OFFLOAD_VLAN support\n");
}

3
drivers/net/ethernet/intel/ice/ice_vf_vsi_vlan_ops.h
View File

@ -8,6 +8,9 @@
struct ice_vsi;
void ice_vf_vsi_cfg_dvm_legacy_vlan_mode(struct ice_vsi *vsi);
void ice_vf_vsi_cfg_svm_legacy_vlan_mode(struct ice_vsi *vsi);
#ifdef CONFIG_PCI_IOV
void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi);
#else

10
drivers/net/ethernet/intel/ice/ice_virtchnl_allowlist.c
View File

@ -55,6 +55,15 @@ static const u32 vlan_allowlist_opcodes[] = {
VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
};
/* VIRTCHNL_VF_OFFLOAD_VLAN_V2 */
static const u32 vlan_v2_allowlist_opcodes[] = {
VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS, VIRTCHNL_OP_ADD_VLAN_V2,
VIRTCHNL_OP_DEL_VLAN_V2, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2,
VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2,
VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2,
VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2,
};
/* VIRTCHNL_VF_OFFLOAD_RSS_PF */
static const u32 rss_pf_allowlist_opcodes[] = {
VIRTCHNL_OP_CONFIG_RSS_KEY, VIRTCHNL_OP_CONFIG_RSS_LUT,
@ -89,6 +98,7 @@ static const struct allowlist_opcode_info allowlist_opcodes[] = {
ALLOW_ITEM(VIRTCHNL_VF_OFFLOAD_RSS_PF, rss_pf_allowlist_opcodes),
ALLOW_ITEM(VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF, adv_rss_pf_allowlist_opcodes),
ALLOW_ITEM(VIRTCHNL_VF_OFFLOAD_FDIR_PF, fdir_pf_allowlist_opcodes),
ALLOW_ITEM(VIRTCHNL_VF_OFFLOAD_VLAN_V2, vlan_v2_allowlist_opcodes),
};
/**

1132
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
View File

File diff suppressed because it is too large Load Diff

8
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h
View File

@ -95,6 +95,13 @@ struct ice_vc_vf_ops {
int (*handle_rss_cfg_msg)(struct ice_vf *vf, u8 *msg, bool add);
int (*add_fdir_fltr_msg)(struct ice_vf *vf, u8 *msg);
int (*del_fdir_fltr_msg)(struct ice_vf *vf, u8 *msg);
int (*get_offload_vlan_v2_caps)(struct ice_vf *vf);
int (*add_vlan_v2_msg)(struct ice_vf *vf, u8 *msg);
int (*remove_vlan_v2_msg)(struct ice_vf *vf, u8 *msg);
int (*ena_vlan_stripping_v2_msg)(struct ice_vf *vf, u8 *msg);
int (*dis_vlan_stripping_v2_msg)(struct ice_vf *vf, u8 *msg);
int (*ena_vlan_insertion_v2_msg)(struct ice_vf *vf, u8 *msg);
int (*dis_vlan_insertion_v2_msg)(struct ice_vf *vf, u8 *msg);
};
/* VF information structure */
@ -121,6 +128,7 @@ struct ice_vf {
DECLARE_BITMAP(txq_ena, ICE_MAX_RSS_QS_PER_VF);
DECLARE_BITMAP(rxq_ena, ICE_MAX_RSS_QS_PER_VF);
struct ice_vlan port_vlan_info; /* Port VLAN ID, QoS, and TPID */
struct virtchnl_vlan_caps vlan_v2_caps;
u8 pf_set_mac:1; /* VF MAC address set by VMM admin */
u8 trusted:1;
u8 spoofchk:1;