From mboxrd@z Thu Jan 1 00:00:00 1970 From: Helin Zhang Subject: [PATCH v2 07/30] i40e/base: set aq count after memory allocation Date: Thu, 18 Feb 2016 14:29:57 +0800 Message-ID: <1455777020-12095-8-git-send-email-helin.zhang@intel.com> References: <1452825653-623-1-git-send-email-helin.zhang@intel.com> <1455777020-12095-1-git-send-email-helin.zhang@intel.com> To: dev@dpdk.org Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 8D842C386 for ; Thu, 18 Feb 2016 07:31:00 +0100 (CET) In-Reply-To: <1455777020-12095-1-git-send-email-helin.zhang@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The standard way to check if the AQ is enabled is to look at the count field. So it should only set this field after it has successfully allocated memory. To do otherwise is to incite panic among the populace. Signed-off-by: Helin Zhang --- drivers/net/i40e/base/i40e_adminq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/base/i40e_adminq.c b/drivers/net/i40e/base/i40e_adminq.c index e1a162e..ee563e4 100644 --- a/drivers/net/i40e/base/i40e_adminq.c +++ b/drivers/net/i40e/base/i40e_adminq.c @@ -431,7 +431,6 @@ enum i40e_status_code i40e_init_asq(struct i40e_hw *hw) hw->aq.asq.next_to_use = 0; hw->aq.asq.next_to_clean = 0; - hw->aq.asq.count = hw->aq.num_asq_entries; /* allocate the ring memory */ ret_code = i40e_alloc_adminq_asq_ring(hw); @@ -449,6 +448,7 @@ enum i40e_status_code i40e_init_asq(struct i40e_hw *hw) goto init_adminq_free_rings; /* success! */ + hw->aq.asq.count = hw->aq.num_asq_entries; goto init_adminq_exit; init_adminq_free_rings: @@ -490,7 +490,6 @@ enum i40e_status_code i40e_init_arq(struct i40e_hw *hw) hw->aq.arq.next_to_use = 0; hw->aq.arq.next_to_clean = 0; - hw->aq.arq.count = hw->aq.num_arq_entries; /* allocate the ring memory */ ret_code = i40e_alloc_adminq_arq_ring(hw); @@ -508,6 +507,7 @@ enum i40e_status_code i40e_init_arq(struct i40e_hw *hw) goto init_adminq_free_rings; /* success! */ + hw->aq.arq.count = hw->aq.num_arq_entries; goto init_adminq_exit; init_adminq_free_rings: -- 2.5.0