Program: add a tier string in banks (not used program side)

programs/mango-v4/src/instructions/token_edit.rs

@@ -56,6 +56,7 @@ pub fn token_edit(
     disable_asset_liquidation_opt: Option<bool>,
     collateral_fee_per_day: Option<f32>,
     force_withdraw_opt: Option<bool>,
+    tier_opt: Option<String>,
 ) -> Result<()> {
     let group = ctx.accounts.group.load()?;
 
@@ -323,6 +324,12 @@ pub fn token_edit(
             require_group_admin = true;
         };
 
+        if let Some(tier) = tier_opt.as_ref() {
+            msg!("Tier: old - {:?}, new - {:?}", bank.tier, tier);
+            bank.tier = fill_from_str(&tier)?;
+            require_group_admin = true;
+        };
+
         if let Some(force_close) = force_close_opt {
             if force_close {
                 require!(bank.reduce_only > 0, MangoError::SomeError);

programs/mango-v4/src/instructions/token_register.rs

@@ -46,6 +46,7 @@ pub fn token_register(
     platform_liquidation_fee: f32,
     disable_asset_liquidation: bool,
     collateral_fee_per_day: f32,
+    tier: String,
 ) -> Result<()> {
     require_neq!(token_index, TokenIndex::MAX);
 
@@ -127,7 +128,7 @@ pub fn token_register(
         collected_liquidation_fees: I80F48::ZERO,
         collected_collateral_fees: I80F48::ZERO,
         collateral_fee_per_day,
-        padding2: [0; 4],
+        tier: fill_from_str(&tier)?,
         reserved: [0; 1888],
     };
 

programs/mango-v4/src/instructions/token_register_trustless.rs

@@ -112,7 +112,7 @@ pub fn token_register_trustless(
         collected_liquidation_fees: I80F48::ZERO,
         collected_collateral_fees: I80F48::ZERO,
         collateral_fee_per_day: 0.0, // TODO
-        padding2: [0; 4],
+        tier: fill_from_str("C")?,
         reserved: [0; 1888],
     };
     let oracle_ref = &AccountInfoRef::borrow(ctx.accounts.oracle.as_ref())?;

programs/mango-v4/src/lib.rs

@@ -167,6 +167,7 @@ pub mod mango_v4 {
         platform_liquidation_fee: f32,
         disable_asset_liquidation: bool,
         collateral_fee_per_day: f32,
+        tier: String,
     ) -> Result<()> {
         #[cfg(feature = "enable-gpl")]
         instructions::token_register(
@@ -202,6 +203,7 @@ pub mod mango_v4 {
             platform_liquidation_fee,
             disable_asset_liquidation,
             collateral_fee_per_day,
+            tier,
         )?;
         Ok(())
     }
@@ -260,6 +262,7 @@ pub mod mango_v4 {
         disable_asset_liquidation_opt: Option<bool>,
         collateral_fee_per_day_opt: Option<f32>,
         force_withdraw_opt: Option<bool>,
+        tier_opt: Option<String>,
     ) -> Result<()> {
         #[cfg(feature = "enable-gpl")]
         instructions::token_edit(
@@ -305,6 +308,7 @@ pub mod mango_v4 {
             disable_asset_liquidation_opt,
             collateral_fee_per_day_opt,
             force_withdraw_opt,
+            tier_opt,
         )?;
         Ok(())
     }

programs/mango-v4/src/state/bank.rs

@@ -231,8 +231,8 @@ pub struct Bank {
     /// The daily collateral fees rate for fully utilized collateral.
     pub collateral_fee_per_day: f32,
 
-    #[derivative(Debug = "ignore")]
-    pub padding2: [u8; 4],
+    #[derivative(Debug(format_with = "util::format_zero_terminated_utf8_bytes"))]
+    pub tier: [u8; 4],
 
     /// Largest amount of tokens that might be added the bank based on
     /// oenbook open order execution.
@@ -391,7 +391,7 @@ impl Bank {
             zero_util_rate: existing_bank.zero_util_rate,
             platform_liquidation_fee: existing_bank.platform_liquidation_fee,
             collateral_fee_per_day: existing_bank.collateral_fee_per_day,
-            padding2: [0; 4],
+            tier: existing_bank.tier,
             reserved: [0; 1888],
         }
     }
@@ -450,6 +450,12 @@ impl Bank {
             .trim_matches(char::from(0))
     }
 
+    pub fn tier(&self) -> &str {
+        std::str::from_utf8(&self.tier)
+            .unwrap()
+            .trim_matches(char::from(0))
+    }
+
     pub fn are_deposits_reduce_only(&self) -> bool {
         self.reduce_only == 1
     }

programs/mango-v4/tests/program_test/mango_client.rs

@@ -1077,6 +1077,7 @@ impl ClientInstruction for TokenRegisterInstruction {
             platform_liquidation_fee: self.platform_liquidation_fee,
             disable_asset_liquidation: false,
             collateral_fee_per_day: 0.0,
+            tier: "A".to_string(),
         };
 
         let bank = Pubkey::find_program_address(
@@ -1327,6 +1328,7 @@ pub fn token_edit_instruction_default() -> mango_v4::instruction::TokenEdit {
         disable_asset_liquidation_opt: None,
         collateral_fee_per_day_opt: None,
         force_withdraw_opt: None,
+        tier_opt: None,
     }
 }