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From: Coiby Xu <coxu@redhat.com>
To: netdev@vger.kernel.org
Cc: kexec@lists.infradead.org, intel-wired-lan@lists.osuosl.org,
	Jakub Kicinski <kuba@kernel.org>,
	Jesse Brandeburg <jesse.brandeburg@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	"David S. Miller" <davem@davemloft.net>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v1 3/3] i40e: use minimal admin queue for kdump
Date: Thu,  4 Mar 2021 10:55:43 +0800	[thread overview]
Message-ID: <20210304025543.334912-4-coxu@redhat.com> (raw)
In-Reply-To: <20210304025543.334912-1-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 cd53981fa5e0..09217944baa4 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 d6868c7aee05..5d67fb12e576 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -15327,8 +15327,13 @@ 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;
-- 
2.30.1


WARNING: multiple messages have this Message-ID (diff)
From: Coiby Xu <coxu@redhat.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [PATCH v1 3/3] i40e: use minimal admin queue for kdump
Date: Thu,  4 Mar 2021 10:55:43 +0800	[thread overview]
Message-ID: <20210304025543.334912-4-coxu@redhat.com> (raw)
In-Reply-To: <20210304025543.334912-1-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 cd53981fa5e0..09217944baa4 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 d6868c7aee05..5d67fb12e576 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -15327,8 +15327,13 @@ 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;
-- 
2.30.1


WARNING: multiple messages have this Message-ID (diff)
From: Coiby Xu <coxu@redhat.com>
To: netdev@vger.kernel.org
Cc: kexec@lists.infradead.org, intel-wired-lan@lists.osuosl.org,
	Jakub Kicinski <kuba@kernel.org>,
	Jesse Brandeburg <jesse.brandeburg@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	"David S. Miller" <davem@davemloft.net>,
	open list <linux-kernel@vger.kernel.org>
Subject: [PATCH v1 3/3] i40e: use minimal admin queue for kdump
Date: Thu,  4 Mar 2021 10:55:43 +0800	[thread overview]
Message-ID: <20210304025543.334912-4-coxu@redhat.com> (raw)
In-Reply-To: <20210304025543.334912-1-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 cd53981fa5e0..09217944baa4 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 d6868c7aee05..5d67fb12e576 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -15327,8 +15327,13 @@ 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;
-- 
2.30.1


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  parent reply	other threads:[~2021-03-04  2:58 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-04  2:55 [PATCH v1 0/3] Reducing memory usage of i40e for kdump Coiby Xu
2021-03-04  2:55 ` Coiby Xu
2021-03-04  2:55 ` [Intel-wired-lan] " Coiby Xu
2021-03-04  2:55 ` [PATCH v1 1/3] i40e: use minimal tx and rx pairs " Coiby Xu
2021-03-04  2:55   ` Coiby Xu
2021-03-04  2:55   ` [Intel-wired-lan] " Coiby Xu
2021-04-22 21:00   ` Switzer, David
2021-04-22 21:00     ` Switzer, David
2021-04-22 21:00     ` [Intel-wired-lan] " Switzer, David
2021-03-04  2:55 ` [PATCH v1 2/3] i40e: use minimal rx and tx ring buffers " Coiby Xu
2021-03-04  2:55   ` Coiby Xu
2021-03-04  2:55   ` [Intel-wired-lan] " Coiby Xu
2021-04-22 20:59   ` Switzer, David
2021-04-22 20:59     ` Switzer, David
2021-04-22 20:59     ` [Intel-wired-lan] " Switzer, David
2021-03-04  2:55 ` Coiby Xu [this message]
2021-03-04  2:55   ` [PATCH v1 3/3] i40e: use minimal admin queue " Coiby Xu
2021-03-04  2:55   ` [Intel-wired-lan] " Coiby Xu
2021-04-22 21:00   ` Switzer, David
2021-04-22 21:00     ` Switzer, David
2021-04-22 21:00     ` [Intel-wired-lan] " Switzer, David

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