From: Coiby Xu <coxu@redhat.com>
To: netdev@vger.kernel.org
Cc: kexec@lists.infradead.org, intel-wired-lan@lists.osuosl.org,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Tony Nguyen <anthony.l.nguyen@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
linux-kernel@vger.kernel.org (open list)
Subject: [RFC PATCH 3/4] i40e: use minimal admin queue for kdump
Date: Mon, 22 Feb 2021 15:07:00 +0800 [thread overview]
Message-ID: <20210222070701.16416-4-coxu@redhat.com> (raw)
In-Reply-To: <20210222070701.16416-1-coxu@redhat.com>
The minimum size of admin send/receive queue is 1 and 2 respectively.
The admin send queue can't be set to 1 because in that case, the
firmware would fail to init.
Signed-off-by: Coiby Xu <coxu@redhat.com>
---
drivers/net/ethernet/intel/i40e/i40e.h | 2 ++
drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +++++++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 118473dfdcbd..e106c33ff958 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -66,6 +66,8 @@
#define I40E_FDIR_RING_COUNT 32
#define I40E_MAX_AQ_BUF_SIZE 4096
#define I40E_AQ_LEN 256
+#define I40E_MIN_ARQ_LEN 1
+#define I40E_MIN_ASQ_LEN 2
#define I40E_AQ_WORK_LIMIT 66 /* max number of VFs + a little */
#define I40E_MAX_USER_PRIORITY 8
#define I40E_DEFAULT_TRAFFIC_CLASS BIT(0)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 5307f1744766..2fd8db80b585 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -14847,8 +14847,13 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
i40e_check_recovery_mode(pf);
- hw->aq.num_arq_entries = I40E_AQ_LEN;
- hw->aq.num_asq_entries = I40E_AQ_LEN;
+ if (is_kdump_kernel()) {
+ hw->aq.num_arq_entries = I40E_MIN_ARQ_LEN;
+ hw->aq.num_asq_entries = I40E_MIN_ASQ_LEN;
+ } else {
+ hw->aq.num_arq_entries = I40E_AQ_LEN;
+ hw->aq.num_asq_entries = I40E_AQ_LEN;
+ }
hw->aq.arq_buf_size = I40E_MAX_AQ_BUF_SIZE;
hw->aq.asq_buf_size = I40E_MAX_AQ_BUF_SIZE;
pf->adminq_work_limit = I40E_AQ_WORK_LIMIT;
--
2.30.0
next prev parent reply other threads:[~2021-02-22 7:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210222070701.16416-1-coxu@redhat.com>
2021-02-22 7:06 ` [RFC PATCH 1/4] i40e: use minimal tx and rx pairs for kdump Coiby Xu
2021-02-22 7:06 ` [RFC PATCH 2/4] i40e: use minimal rx and tx ring buffers " Coiby Xu
2021-02-22 7:07 ` Coiby Xu [this message]
2021-02-22 7:07 ` [RFC PATCH 4/4] i40e: don't open i40iw client " Coiby Xu
2021-02-23 20:22 ` Jakub Kicinski
2021-02-24 11:41 ` Coiby Xu
2021-02-24 16:48 ` Jakub Kicinski
2021-02-25 0:21 ` Coiby Xu
2021-02-25 0:47 ` Jakub Kicinski
2021-02-25 10:11 ` Bhupesh SHARMA
2021-03-03 9:44 ` Coiby Xu
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