ice: manage profiles and field vectors

Implement functions to manage profiles and field vectors in hardware.

In hardware, there are up to 256 profiles and each of these profiles can
have 48 field vector words. Each field vector word is described by
protocol id and offset in the packet. To add a new recipe all used
profiles need to be searched. If the profile contains all required
protocol ids and offsets from the recipe it can be used. The driver has
to add this profile to recipe association to tell hardware that newly
added recipe is going to be associated with this profile.

The amount of used profiles depend on the package. To avoid searching
across not used profile, max profile id value is calculated at init flow.
The profile is considered as unused when all field vector words in the
profile are invalid (protocol id 0xff and offset 0x1ff).

Profiles are read from the package section ICE_SID_FLD_VEC_SW. Empty
field vector words can be used for recipe results. Store all unused field
vector words in prof_res_bm. It is a 256 elements array (max number of
profiles) each element is a 48 bit bitmap (max number of field vector
words).

For now, support only non-tunnel profiles type.

Co-developed-by: Grishma Kotecha <grishma.kotecha@intel.com>
Signed-off-by: Grishma Kotecha <grishma.kotecha@intel.com>
Signed-off-by: Dan Nowlin <dan.nowlin@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_flex_type.h b/drivers/net/ethernet/intel/ice/ice_flex_type.h
index 7d8b517a63c9..120bcebaa080 100644
--- a/drivers/net/ethernet/intel/ice/ice_flex_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_flex_type.h
@@ -13,6 +13,8 @@ struct ice_fv_word {
 	u8 resvrd;
 } __packed;
 
+#define ICE_MAX_NUM_PROFILES 256
+
 #define ICE_MAX_FV_WORDS 48
 struct ice_fv {
 	struct ice_fv_word ew[ICE_MAX_FV_WORDS];
@@ -279,6 +281,12 @@ struct ice_sw_fv_section {
 	struct ice_fv fv[];
 };
 
+struct ice_sw_fv_list_entry {
+	struct list_head list_entry;
+	u32 profile_id;
+	struct ice_fv *fv_ptr;
+};
+
 /* The BOOST TCAM stores the match packet header in reverse order, meaning
  * the fields are reversed; in addition, this means that the normally big endian
  * fields of the packet are now little endian.
@@ -603,4 +611,9 @@ struct ice_chs_chg {
 };
 
 #define ICE_FLOW_PTYPE_MAX		ICE_XLT1_CNT
+
+enum ice_prof_type {
+	ICE_PROF_NON_TUN = 0x1,
+	ICE_PROF_ALL = 0xFF,
+};
 #endif /* _ICE_FLEX_TYPE_H_ */