Thread (16 messages) 16 messages, 3 authors, 2014-09-04

Re: [PATCH net-next 12/12] be2net: query max_tx_qs for BE3 super-nic profile from FW

From: Jiri Pirko <jiri@resnulli.us>
Date: 2014-09-04 19:28:22

Tue, Sep 02, 2014 at 06:08:18AM CEST, Sathya.Perla@Emulex.Com wrote:
quoted
-----Original Message-----
From: Sergei Shtylyov [mailto:sergei.shtylyov@cogentembedded.com]

Hello.
quoted
In the BE3 super-nic profile, the max_tx_qs value can vary for each
function.
quoted
So the driver needs to query this value from FW instead of using the
pre-defined constant BE3_MAX_TX_QS.
quoted
Signed-off-by: Suresh Reddy <redacted>
Signed-off-by: Sathya Perla <redacted>
---
  drivers/net/ethernet/emulex/benet/be_main.c |   13 +++++++++++--
  1 files changed, 11 insertions(+), 2 deletions(-)
quoted
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c
b/drivers/net/ethernet/emulex/benet/be_main.c
quoted
index f3235d1..a30156b 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3324,10 +3324,19 @@ static void BEx_get_resources(struct
be_adapter *adapter,
quoted
  	 */
  	if (BE2_chip(adapter) || use_sriov ||  (adapter->port_num > 1) ||
  	    !be_physfn(adapter) || (be_is_mc(adapter) &&
-	    !(adapter->function_caps & BE_FUNCTION_CAPS_RSS)))
+	    !(adapter->function_caps & BE_FUNCTION_CAPS_RSS))) {
  		res->max_tx_qs = 1;
-	else
+	} else if (adapter->function_caps &
BE_FUNCTION_CAPS_SUPER_NIC) {
quoted
+		struct be_resources super_nic_res = {0};
    Empty line is needed after declaration.
Ok, will  fix it. Thks.
scripts/checkpatch.pl is your friend :)
quoted
quoted
+		/* On a SuperNIC profile, the driver needs to use the
+		 * GET_PROFILE_CONFIG cmd to query the per-function TXQ
limits
quoted
+		 */
+		be_cmd_get_profile_config(adapter, &super_nic_res, 0);
+		/* Some old versions of BE3 FW don't report max_tx_qs
value */
quoted
+		res->max_tx_qs = super_nic_res.max_tx_qs ? :
BE3_MAX_TX_QS;
quoted
+	} else {
  		res->max_tx_qs = BE3_MAX_TX_QS;
+	}
WBR, Sergei
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