[PATCH 0/3] be2net: patch set

[PATCH 0/3] be2net: patch set

[Sathya Perla]

Pls apply the following bug fixes to the 'net' tree. Thanks.

Suresh Reddy (2):
  be2net: increase the timeout value for loopback-test FW cmd
  be2net: fix max_evt_qs calculation for BE3 in SR-IOV config

Vasundhara Volam (1):
  be2net: disable RSS when number of RXQs is reduced to 1 via
    set-channels

 drivers/net/ethernet/emulex/benet/be.h      |    3 +-
 drivers/net/ethernet/emulex/benet/be_cmds.c |   33 ++++++++++++++++++--------
 drivers/net/ethernet/emulex/benet/be_main.c |   29 ++++++++++++++---------
 3 files changed, 43 insertions(+), 22 deletions(-)

[PATCH 1/3] be2net: disable RSS when number of RXQs is reduced to 1 via set-channels

[Sathya Perla]

From: Vasundhara Volam <vasundhara.volam@emulex.com>

When *only* the default RXQ is used, the RSS policy must be disabled so
that all IP and no-IP traffic is placed into the default RXQ. If not,
IP traffic is dropped.

Also, issue the RSS_CONFIG cmd only if FW advertises RSS capability for
the interface.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
---
 drivers/net/ethernet/emulex/benet/be_cmds.c |    3 +++
 drivers/net/ethernet/emulex/benet/be_main.c |   15 +++++++++------
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index e0e8bc1..b84902e 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -2017,6 +2017,9 @@ int be_cmd_rss_config(struct be_adapter *adapter, u8 *rsstable,
 			0x3ea83c02, 0x4a110304};
 	int status;
 
+	if (!(be_if_cap_flags(adapter) & BE_IF_FLAGS_RSS))
+		return 0;
+
 	if (mutex_lock_interruptible(&adapter->mbox_lock))
 		return -1;
 
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 0fde69d..6b774a5 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2744,13 +2744,16 @@ static int be_rx_qs_create(struct be_adapter *adapter)
 		if (!BEx_chip(adapter))
 			adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
 						RSS_ENABLE_UDP_IPV6;
+	} else {
+		/* Disable RSS, if only default RX Q is created */
+		adapter->rss_flags = RSS_ENABLE_NONE;
+	}
 
-		rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
-				       128);
-		if (rc) {
-			adapter->rss_flags = 0;
-			return rc;
-		}
+	rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
+			       128);
+	if (rc) {
+		adapter->rss_flags = RSS_ENABLE_NONE;
+		return rc;
 	}
 
 	/* First time posting */
-- 
1.7.1

[PATCH 2/3] be2net: increase the timeout value for loopback-test FW cmd

[Sathya Perla]

From: Suresh Reddy <suresh.reddy@emulex.com>

The loopback test FW cmd may need upto 15 seconds to complete on
certain PHYs. This patch also fixes the name of the completion variable
used to synchronize FW cmd completions as it not used by the flashing
cmd alone anymore.

Signed-off-by: Suresh Reddy <suresh.reddy@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
---
 drivers/net/ethernet/emulex/benet/be.h      |    2 +-
 drivers/net/ethernet/emulex/benet/be_cmds.c |   30 ++++++++++++++++++---------
 drivers/net/ethernet/emulex/benet/be_main.c |    2 +-
 3 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 5878df6..2e031f2 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -480,7 +480,7 @@ struct be_adapter {
 	struct list_head entry;
 
 	u32 flash_status;
-	struct completion flash_compl;
+	struct completion et_cmd_compl;
 
 	struct be_resources res;	/* resources available for the func */
 	u16 num_vfs;			/* Number of VFs provisioned by PF */
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index b84902e..94c35c8 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -141,11 +141,17 @@ static int be_mcc_compl_process(struct be_adapter *adapter,
 		subsystem = resp_hdr->subsystem;
 	}
 
+	if (opcode == OPCODE_LOWLEVEL_LOOPBACK_TEST &&
+	    subsystem == CMD_SUBSYSTEM_LOWLEVEL) {
+		complete(&adapter->et_cmd_compl);
+		return 0;
+	}
+
 	if (((opcode == OPCODE_COMMON_WRITE_FLASHROM) ||
 	     (opcode == OPCODE_COMMON_WRITE_OBJECT)) &&
 	    (subsystem == CMD_SUBSYSTEM_COMMON)) {
 		adapter->flash_status = compl_status;
-		complete(&adapter->flash_compl);
+		complete(&adapter->et_cmd_compl);
 	}
 
 	if (compl_status == MCC_STATUS_SUCCESS) {
@@ -2163,7 +2169,7 @@ int lancer_cmd_write_object(struct be_adapter *adapter, struct be_dma_mem *cmd,
 	be_mcc_notify(adapter);
 	spin_unlock_bh(&adapter->mcc_lock);
 
-	if (!wait_for_completion_timeout(&adapter->flash_compl,
+	if (!wait_for_completion_timeout(&adapter->et_cmd_compl,
 					 msecs_to_jiffies(60000)))
 		status = -1;
 	else
@@ -2258,8 +2264,8 @@ int be_cmd_write_flashrom(struct be_adapter *adapter, struct be_dma_mem *cmd,
 	be_mcc_notify(adapter);
 	spin_unlock_bh(&adapter->mcc_lock);
 
-	if (!wait_for_completion_timeout(&adapter->flash_compl,
-			msecs_to_jiffies(40000)))
+	if (!wait_for_completion_timeout(&adapter->et_cmd_compl,
+					 msecs_to_jiffies(40000)))
 		status = -1;
 	else
 		status = adapter->flash_status;
@@ -2370,6 +2376,7 @@ int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num,
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_loopback_test *req;
+	struct be_cmd_resp_loopback_test *resp;
 	int status;
 
 	spin_lock_bh(&adapter->mcc_lock);
@@ -2384,8 +2391,8 @@ int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num,
 
 	be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_LOWLEVEL,
 			OPCODE_LOWLEVEL_LOOPBACK_TEST, sizeof(*req), wrb, NULL);
-	req->hdr.timeout = cpu_to_le32(4);
 
+	req->hdr.timeout = cpu_to_le32(15);
 	req->pattern = cpu_to_le64(pattern);
 	req->src_port = cpu_to_le32(port_num);
 	req->dest_port = cpu_to_le32(port_num);
@@ -2393,12 +2400,15 @@ int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num,
 	req->num_pkts = cpu_to_le32(num_pkts);
 	req->loopback_type = cpu_to_le32(loopback_type);
 
-	status = be_mcc_notify_wait(adapter);
-	if (!status) {
-		struct be_cmd_resp_loopback_test *resp = embedded_payload(wrb);
-		status = le32_to_cpu(resp->status);
-	}
+	be_mcc_notify(adapter);
+
+	spin_unlock_bh(&adapter->mcc_lock);
 
+	wait_for_completion(&adapter->et_cmd_compl);
+	resp = embedded_payload(wrb);
+	status = le32_to_cpu(resp->status);
+
+	return status;
 err:
 	spin_unlock_bh(&adapter->mcc_lock);
 	return status;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 6b774a5..fa44bba 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4208,7 +4208,7 @@ static int be_ctrl_init(struct be_adapter *adapter)
 	spin_lock_init(&adapter->mcc_lock);
 	spin_lock_init(&adapter->mcc_cq_lock);
 
-	init_completion(&adapter->flash_compl);
+	init_completion(&adapter->et_cmd_compl);
 	pci_save_state(adapter->pdev);
 	return 0;
 
-- 
1.7.1

[PATCH 3/3] be2net: fix max_evt_qs calculation for BE3 in SR-IOV config

[Sathya Perla]

From: Suresh Reddy <suresh.reddy@emulex.com>

The driver wrongly assumes 16 EQs/vectors are available for each BE3 PF.
When SR-IOV is enabled, a BE3 PF can support only a max of 8 EQs.

Signed-off-by: Suresh Reddy <suresh.reddy@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
---
 drivers/net/ethernet/emulex/benet/be.h      |    1 +
 drivers/net/ethernet/emulex/benet/be_main.c |   12 ++++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 2e031f2..4ccaf9a 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -104,6 +104,7 @@ static inline char *nic_name(struct pci_dev *pdev)
 #define BE3_MAX_RSS_QS		16
 #define BE3_MAX_TX_QS		16
 #define BE3_MAX_EVT_QS		16
+#define BE3_SRIOV_MAX_EVT_QS	8
 
 #define MAX_RX_QS		32
 #define MAX_EVT_QS		32
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index fa44bba..bf40fda 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3127,11 +3127,11 @@ static void BEx_get_resources(struct be_adapter *adapter,
 {
 	struct pci_dev *pdev = adapter->pdev;
 	bool use_sriov = false;
+	int max_vfs;
 
-	if (BE3_chip(adapter) && sriov_want(adapter)) {
-		int max_vfs;
+	max_vfs = pci_sriov_get_totalvfs(pdev);
 
-		max_vfs = pci_sriov_get_totalvfs(pdev);
+	if (BE3_chip(adapter) && sriov_want(adapter)) {
 		res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
 		use_sriov = res->max_vfs;
 	}
@@ -3162,7 +3162,11 @@ static void BEx_get_resources(struct be_adapter *adapter,
 					   BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
 	res->max_rx_qs = res->max_rss_qs + 1;
 
-	res->max_evt_qs = be_physfn(adapter) ? BE3_MAX_EVT_QS : 1;
+	if (be_physfn(adapter))
+		res->max_evt_qs = (max_vfs > 0) ?
+					BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS;
+	else
+		res->max_evt_qs = 1;
 
 	res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
 	if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
-- 
1.7.1

Re: [PATCH 0/3] be2net: patch set

[David Miller]

From: Sathya Perla <sathya.perla@emulex.com>
Date: Mon, 6 Jan 2014 13:02:22 +0530

> Pls apply the following bug fixes to the 'net' tree. Thanks.

Series applied, thanks.