netdev - [net-next 09/11] ice: Get resources per function

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190320005227.28907-10-jeffrey.t.kirsher@intel.com>
Date:   Tue, 19 Mar 2019 17:52:25 -0700
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Brett Creeley <brett.creeley@...el.com>, netdev@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com,
        Bruce Allan <bruce.w.allan@...el.com>,
        Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>,
        Andrew Bowers <andrewx.bowers@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 09/11] ice: Get resources per function

From: Brett Creeley <brett.creeley@...el.com>

ice_get_guar_num_vsi currently calculates the number of VSIs per PF.
Rework this into a general function ice_get_num_per_func, that can
calculate per PF allocations for not just VSIs but across multiple
resource types.

Signed-off-by: Brett Creeley <brett.creeley@...el.com>
Reviewed-by: Bruce Allan <bruce.w.allan@...el.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_common.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 2dc5c3249e12..d2e1e6f440b8 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -1415,13 +1415,15 @@ void ice_release_res(struct ice_hw *hw, enum ice_aq_res_ids res)
 }
 
 /**
- * ice_get_guar_num_vsi - determine number of guar VSI for a PF
+ * ice_get_num_per_func - determine number of resources per PF
  * @hw: pointer to the hw structure
+ * @max: value to be evenly split between each PF
  *
  * Determine the number of valid functions by going through the bitmap returned
- * from parsing capabilities and use this to calculate the number of VSI per PF.
+ * from parsing capabilities and use this to calculate the number of resources
+ * per PF based on the max value passed in.
  */
-static u32 ice_get_guar_num_vsi(struct ice_hw *hw)
+static u32 ice_get_num_per_func(struct ice_hw *hw, u32 max)
 {
 	u8 funcs;
 
@@ -1432,7 +1434,7 @@ static u32 ice_get_guar_num_vsi(struct ice_hw *hw)
 	if (!funcs)
 		return 0;
 
-	return ICE_MAX_VSI / funcs;
+	return max / funcs;
 }
 
 /**
@@ -1512,7 +1514,8 @@ ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count,
 					  "HW caps: Dev.VSI cnt = %d\n",
 					  dev_p->num_vsi_allocd_to_host);
 			} else if (func_p) {
-				func_p->guar_num_vsi = ice_get_guar_num_vsi(hw);
+				func_p->guar_num_vsi =
+					ice_get_num_per_func(hw, ICE_MAX_VSI);
 				ice_debug(hw, ICE_DBG_INIT,
 					  "HW caps: Func.VSI cnt = %d\n",
 					  number);
-- 
2.20.1