i40e: Enable cloud filters via tc-flower
This patch enables tc-flower based hardware offloads. tc flower
filter provided by the kernel is configured as driver specific
cloud filter. The patch implements functions and admin queue
commands needed to support cloud filters in the driver and
adds cloud filters to configure these tc-flower filters.
The classification function of the filter is to direct matched
packets to a traffic class. The hardware traffic class is set
based on the the classid reserved in the range :ffe0 - :ffef.
Match Dst MAC and route to TC0:
prio 1 flower dst_mac 3c:fd:fe:a0:d6:70 skip_sw\
hw_tc 1
Match Dst IPv4,Dst Port and route to TC1:
prio 2 flower dst_ip 192.168.3.5/32\
ip_proto udp dst_port 25 skip_sw\
hw_tc 2
Match Dst IPv6,Dst Port and route to TC1:
prio 3 flower dst_ip fe8::200:1\
ip_proto udp dst_port 66 skip_sw\
hw_tc 2
Delete tc flower filter:
Example:
Flow Director Sideband is disabled while configuring cloud filters
via tc-flower and until any cloud filter exists.
Unsupported matches when cloud filters are added using enhanced
big buffer cloud filter mode of underlying switch include:
1. source port and source IP
2. Combined MAC address and IP fields.
3. Not specifying L4 port
These filter matches can however be used to redirect traffic to
the main VSI (tc 0) which does not require the enhanced big buffer
cloud filter support.
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@oracle.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/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index a9460e0..0203665 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -5436,5 +5436,194 @@ i40e_add_pinfo_to_list(struct i40e_hw *hw,
status = i40e_aq_write_ppp(hw, (void *)sec, sec->data_end,
track_id, &offset, &info, NULL);
+
+ return status;
+}
+
+/**
+ * i40e_aq_add_cloud_filters
+ * @hw: pointer to the hardware structure
+ * @seid: VSI seid to add cloud filters from
+ * @filters: Buffer which contains the filters to be added
+ * @filter_count: number of filters contained in the buffer
+ *
+ * Set the cloud filters for a given VSI. The contents of the
+ * i40e_aqc_cloud_filters_element_data are filled in by the caller
+ * of the function.
+ *
+ **/
+enum i40e_status_code
+i40e_aq_add_cloud_filters(struct i40e_hw *hw, u16 seid,
+ struct i40e_aqc_cloud_filters_element_data *filters,
+ u8 filter_count)
+{
+ struct i40e_aq_desc desc;
+ struct i40e_aqc_add_remove_cloud_filters *cmd =
+ (struct i40e_aqc_add_remove_cloud_filters *)&desc.params.raw;
+ enum i40e_status_code status;
+ u16 buff_len;
+
+ i40e_fill_default_direct_cmd_desc(&desc,
+ i40e_aqc_opc_add_cloud_filters);
+
+ buff_len = filter_count * sizeof(*filters);
+ desc.datalen = cpu_to_le16(buff_len);
+ desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
+ cmd->num_filters = filter_count;
+ cmd->seid = cpu_to_le16(seid);
+
+ status = i40e_asq_send_command(hw, &desc, filters, buff_len, NULL);
+
+ return status;
+}
+
+/**
+ * i40e_aq_add_cloud_filters_bb
+ * @hw: pointer to the hardware structure
+ * @seid: VSI seid to add cloud filters from
+ * @filters: Buffer which contains the filters in big buffer to be added
+ * @filter_count: number of filters contained in the buffer
+ *
+ * Set the big buffer cloud filters for a given VSI. The contents of the
+ * i40e_aqc_cloud_filters_element_bb are filled in by the caller of the
+ * function.
+ *
+ **/
+i40e_status
+i40e_aq_add_cloud_filters_bb(struct i40e_hw *hw, u16 seid,
+ struct i40e_aqc_cloud_filters_element_bb *filters,
+ u8 filter_count)
+{
+ struct i40e_aq_desc desc;
+ struct i40e_aqc_add_remove_cloud_filters *cmd =
+ (struct i40e_aqc_add_remove_cloud_filters *)&desc.params.raw;
+ i40e_status status;
+ u16 buff_len;
+ int i;
+
+ i40e_fill_default_direct_cmd_desc(&desc,
+ i40e_aqc_opc_add_cloud_filters);
+
+ buff_len = filter_count * sizeof(*filters);
+ desc.datalen = cpu_to_le16(buff_len);
+ desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
+ cmd->num_filters = filter_count;
+ cmd->seid = cpu_to_le16(seid);
+ cmd->big_buffer_flag = I40E_AQC_ADD_CLOUD_CMD_BB;
+
+ for (i = 0; i < filter_count; i++) {
+ u16 tnl_type;
+ u32 ti;
+
+ tnl_type = (le16_to_cpu(filters[i].element.flags) &
+ I40E_AQC_ADD_CLOUD_TNL_TYPE_MASK) >>
+ I40E_AQC_ADD_CLOUD_TNL_TYPE_SHIFT;
+
+ /* Due to hardware eccentricities, the VNI for Geneve is shifted
+ * one more byte further than normally used for Tenant ID in
+ * other tunnel types.
+ */
+ if (tnl_type == I40E_AQC_ADD_CLOUD_TNL_TYPE_GENEVE) {
+ ti = le32_to_cpu(filters[i].element.tenant_id);
+ filters[i].element.tenant_id = cpu_to_le32(ti << 8);
+ }
+ }
+
+ status = i40e_asq_send_command(hw, &desc, filters, buff_len, NULL);
+
+ return status;
+}
+
+/**
+ * i40e_aq_rem_cloud_filters
+ * @hw: pointer to the hardware structure
+ * @seid: VSI seid to remove cloud filters from
+ * @filters: Buffer which contains the filters to be removed
+ * @filter_count: number of filters contained in the buffer
+ *
+ * Remove the cloud filters for a given VSI. The contents of the
+ * i40e_aqc_cloud_filters_element_data are filled in by the caller
+ * of the function.
+ *
+ **/
+enum i40e_status_code
+i40e_aq_rem_cloud_filters(struct i40e_hw *hw, u16 seid,
+ struct i40e_aqc_cloud_filters_element_data *filters,
+ u8 filter_count)
+{
+ struct i40e_aq_desc desc;
+ struct i40e_aqc_add_remove_cloud_filters *cmd =
+ (struct i40e_aqc_add_remove_cloud_filters *)&desc.params.raw;
+ enum i40e_status_code status;
+ u16 buff_len;
+
+ i40e_fill_default_direct_cmd_desc(&desc,
+ i40e_aqc_opc_remove_cloud_filters);
+
+ buff_len = filter_count * sizeof(*filters);
+ desc.datalen = cpu_to_le16(buff_len);
+ desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
+ cmd->num_filters = filter_count;
+ cmd->seid = cpu_to_le16(seid);
+
+ status = i40e_asq_send_command(hw, &desc, filters, buff_len, NULL);
+
+ return status;
+}
+
+/**
+ * i40e_aq_rem_cloud_filters_bb
+ * @hw: pointer to the hardware structure
+ * @seid: VSI seid to remove cloud filters from
+ * @filters: Buffer which contains the filters in big buffer to be removed
+ * @filter_count: number of filters contained in the buffer
+ *
+ * Remove the big buffer cloud filters for a given VSI. The contents of the
+ * i40e_aqc_cloud_filters_element_bb are filled in by the caller of the
+ * function.
+ *
+ **/
+i40e_status
+i40e_aq_rem_cloud_filters_bb(struct i40e_hw *hw, u16 seid,
+ struct i40e_aqc_cloud_filters_element_bb *filters,
+ u8 filter_count)
+{
+ struct i40e_aq_desc desc;
+ struct i40e_aqc_add_remove_cloud_filters *cmd =
+ (struct i40e_aqc_add_remove_cloud_filters *)&desc.params.raw;
+ i40e_status status;
+ u16 buff_len;
+ int i;
+
+ i40e_fill_default_direct_cmd_desc(&desc,
+ i40e_aqc_opc_remove_cloud_filters);
+
+ buff_len = filter_count * sizeof(*filters);
+ desc.datalen = cpu_to_le16(buff_len);
+ desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
+ cmd->num_filters = filter_count;
+ cmd->seid = cpu_to_le16(seid);
+ cmd->big_buffer_flag = I40E_AQC_ADD_CLOUD_CMD_BB;
+
+ for (i = 0; i < filter_count; i++) {
+ u16 tnl_type;
+ u32 ti;
+
+ tnl_type = (le16_to_cpu(filters[i].element.flags) &
+ I40E_AQC_ADD_CLOUD_TNL_TYPE_MASK) >>
+ I40E_AQC_ADD_CLOUD_TNL_TYPE_SHIFT;
+
+ /* Due to hardware eccentricities, the VNI for Geneve is shifted
+ * one more byte further than normally used for Tenant ID in
+ * other tunnel types.
+ */
+ if (tnl_type == I40E_AQC_ADD_CLOUD_TNL_TYPE_GENEVE) {
+ ti = le32_to_cpu(filters[i].element.tenant_id);
+ filters[i].element.tenant_id = cpu_to_le32(ti << 8);
+ }
+ }
+
+ status = i40e_asq_send_command(hw, &desc, filters, buff_len, NULL);
+
return status;
}