* [PATCH net-next v3 1/7] vmxnet3: prepare for version 3 changes
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
@ 2016-06-14 1:50 ` Shrikrishna Khare
2016-06-14 1:50 ` [PATCH net-next v3 2/7] vmxnet3: introduce generic command interface to configure the device Shrikrishna Khare
` (7 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Shrikrishna Khare @ 2016-06-14 1:50 UTC (permalink / raw)
To: netdev, linux-kernel, pv-drivers; +Cc: Shrikrishna Khare
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
---
drivers/net/vmxnet3/Makefile | 4 ++--
drivers/net/vmxnet3/upt1_defs.h | 4 ++--
drivers/net/vmxnet3/vmxnet3_defs.h | 9 ++++++---
drivers/net/vmxnet3/vmxnet3_drv.c | 22 +++++++++++++---------
drivers/net/vmxnet3/vmxnet3_ethtool.c | 4 ++--
drivers/net/vmxnet3/vmxnet3_int.h | 13 +++++++++++--
6 files changed, 36 insertions(+), 20 deletions(-)
diff --git a/drivers/net/vmxnet3/Makefile b/drivers/net/vmxnet3/Makefile
index 880f509..8cdbb63 100644
--- a/drivers/net/vmxnet3/Makefile
+++ b/drivers/net/vmxnet3/Makefile
@@ -2,7 +2,7 @@
#
# Linux driver for VMware's vmxnet3 ethernet NIC.
#
-# Copyright (C) 2007-2009, VMware, Inc. All Rights Reserved.
+# Copyright (C) 2007-2016, VMware, Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
@@ -21,7 +21,7 @@
# The full GNU General Public License is included in this distribution in
# the file called "COPYING".
#
-# Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
+# Maintained by: pv-drivers@vmware.com
#
#
################################################################################
diff --git a/drivers/net/vmxnet3/upt1_defs.h b/drivers/net/vmxnet3/upt1_defs.h
index 969c751..db9f1fd 100644
--- a/drivers/net/vmxnet3/upt1_defs.h
+++ b/drivers/net/vmxnet3/upt1_defs.h
@@ -1,7 +1,7 @@
/*
* Linux driver for VMware's vmxnet3 ethernet NIC.
*
- * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
+ * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -20,7 +20,7 @@
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
- * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
+ * Maintained by: pv-drivers@vmware.com
*
*/
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index 72ba8ae..8345e0c 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -1,7 +1,7 @@
/*
* Linux driver for VMware's vmxnet3 ethernet NIC.
*
- * Copyright (C) 2008-2015, VMware, Inc. All Rights Reserved.
+ * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -20,7 +20,7 @@
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
- * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
+ * Maintained by: pv-drivers@vmware.com
*
*/
@@ -76,7 +76,9 @@ enum {
VMXNET3_CMD_UPDATE_IML,
VMXNET3_CMD_UPDATE_PMCFG,
VMXNET3_CMD_UPDATE_FEATURE,
+ VMXNET3_CMD_RESERVED1,
VMXNET3_CMD_LOAD_PLUGIN,
+ VMXNET3_CMD_RESERVED2,
VMXNET3_CMD_FIRST_GET = 0xF00D0000,
VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
@@ -87,7 +89,8 @@ enum {
VMXNET3_CMD_GET_DID_LO,
VMXNET3_CMD_GET_DID_HI,
VMXNET3_CMD_GET_DEV_EXTRA_INFO,
- VMXNET3_CMD_GET_CONF_INTR
+ VMXNET3_CMD_GET_CONF_INTR,
+ VMXNET3_CMD_GET_RESERVED1,
};
/*
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 08885bc..507c53d 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -1,7 +1,7 @@
/*
* Linux driver for VMware's vmxnet3 ethernet NIC.
*
- * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
+ * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -20,7 +20,7 @@
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
- * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
+ * Maintained by: pv-drivers@vmware.com
*
*/
@@ -1363,7 +1363,7 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
rbi->dma_addr = new_dma_addr;
rxd->addr = cpu_to_le64(rbi->dma_addr);
rxd->len = rbi->len;
- if (adapter->version == 2 &&
+ if (VMXNET3_VERSION_GE_2(adapter) &&
rcd->type == VMXNET3_CDTYPE_RXCOMP_LRO) {
struct Vmxnet3_RxCompDescExt *rcdlro;
rcdlro = (struct Vmxnet3_RxCompDescExt *)rcd;
@@ -3200,12 +3200,16 @@ vmxnet3_probe_device(struct pci_dev *pdev,
goto err_alloc_pci;
ver = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
- if (ver & 2) {
- VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_VRRS, 2);
- adapter->version = 2;
- } else if (ver & 1) {
- VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_VRRS, 1);
- adapter->version = 1;
+ if (ver & (1 << VMXNET3_REV_2)) {
+ VMXNET3_WRITE_BAR1_REG(adapter,
+ VMXNET3_REG_VRRS,
+ 1 << VMXNET3_REV_2);
+ adapter->version = VMXNET3_REV_2 + 1;
+ } else if (ver & (1 << VMXNET3_REV_1)) {
+ VMXNET3_WRITE_BAR1_REG(adapter,
+ VMXNET3_REG_VRRS,
+ 1 << VMXNET3_REV_1);
+ adapter->version = VMXNET3_REV_1 + 1;
} else {
dev_err(&pdev->dev,
"Incompatible h/w version (0x%x) for adapter\n", ver);
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 9ba11d7..163e99c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -1,7 +1,7 @@
/*
* Linux driver for VMware's vmxnet3 ethernet NIC.
*
- * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
+ * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -20,7 +20,7 @@
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
- * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
+ * Maintained by: pv-drivers@vmware.com
*
*/
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index 3d2b64e..de068e9 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -1,7 +1,7 @@
/*
* Linux driver for VMware's vmxnet3 ethernet NIC.
*
- * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
+ * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -20,7 +20,7 @@
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
- * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
+ * Maintained by: pv-drivers@vmware.com
*
*/
@@ -79,6 +79,10 @@
#define VMXNET3_RSS
#endif
+#define VMXNET3_REV_3 2 /* Vmxnet3 Rev. 3 */
+#define VMXNET3_REV_2 1 /* Vmxnet3 Rev. 2 */
+#define VMXNET3_REV_1 0 /* Vmxnet3 Rev. 1 */
+
/*
* Capabilities
*/
@@ -387,6 +391,11 @@ struct vmxnet3_adapter {
#define VMXNET3_GET_ADDR_LO(dma) ((u32)(dma))
#define VMXNET3_GET_ADDR_HI(dma) ((u32)(((u64)(dma)) >> 32))
+#define VMXNET3_VERSION_GE_2(adapter) \
+ (adapter->version >= VMXNET3_REV_2 + 1)
+#define VMXNET3_VERSION_GE_3(adapter) \
+ (adapter->version >= VMXNET3_REV_3 + 1)
+
/* must be a multiple of VMXNET3_RING_SIZE_ALIGN */
#define VMXNET3_DEF_TX_RING_SIZE 512
#define VMXNET3_DEF_RX_RING_SIZE 256
--
2.8.2
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH net-next v3 2/7] vmxnet3: introduce generic command interface to configure the device
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
2016-06-14 1:50 ` [PATCH net-next v3 1/7] vmxnet3: prepare for version 3 changes Shrikrishna Khare
@ 2016-06-14 1:50 ` Shrikrishna Khare
2016-06-14 1:50 ` [PATCH net-next v3 3/7] vmxnet3: allow variable length transmit data ring buffer Shrikrishna Khare
` (6 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Shrikrishna Khare @ 2016-06-14 1:50 UTC (permalink / raw)
To: netdev, linux-kernel, pv-drivers; +Cc: Shrikrishna Khare, Guolin Yang
Signed-off-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_defs.h | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index 8345e0c..a26a69d 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -79,6 +79,7 @@ enum {
VMXNET3_CMD_RESERVED1,
VMXNET3_CMD_LOAD_PLUGIN,
VMXNET3_CMD_RESERVED2,
+ VMXNET3_CMD_RESERVED3,
VMXNET3_CMD_FIRST_GET = 0xF00D0000,
VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
@@ -612,6 +613,18 @@ struct Vmxnet3_RxQueueDesc {
u8 __pad[88]; /* 128 aligned */
};
+struct Vmxnet3_SetPolling {
+ u8 enablePolling;
+};
+
+/* If the command data <= 16 bytes, use the shared memory directly.
+ * otherwise, use variable length configuration descriptor.
+ */
+union Vmxnet3_CmdInfo {
+ struct Vmxnet3_VariableLenConfDesc varConf;
+ struct Vmxnet3_SetPolling setPolling;
+ __le64 data[2];
+};
struct Vmxnet3_DSDevRead {
/* read-only region for device, read by dev in response to a SET cmd */
@@ -630,7 +643,14 @@ struct Vmxnet3_DriverShared {
__le32 pad;
struct Vmxnet3_DSDevRead devRead;
__le32 ecr;
- __le32 reserved[5];
+ __le32 reserved;
+ union {
+ __le32 reserved1[4];
+ union Vmxnet3_CmdInfo cmdInfo; /* only valid in the context of
+ * executing the relevant
+ * command
+ */
+ } cu;
};
--
2.8.2
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH net-next v3 3/7] vmxnet3: allow variable length transmit data ring buffer
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
2016-06-14 1:50 ` [PATCH net-next v3 1/7] vmxnet3: prepare for version 3 changes Shrikrishna Khare
2016-06-14 1:50 ` [PATCH net-next v3 2/7] vmxnet3: introduce generic command interface to configure the device Shrikrishna Khare
@ 2016-06-14 1:50 ` Shrikrishna Khare
2016-06-14 1:50 ` [PATCH net-next v3 4/7] vmxnet3: add receive data ring support Shrikrishna Khare
` (5 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Shrikrishna Khare @ 2016-06-14 1:50 UTC (permalink / raw)
To: netdev, linux-kernel, pv-drivers; +Cc: Shrikrishna Khare, Sriram Rangarajan
Signed-off-by: Sriram Rangarajan <rangarajans@vmware.com>
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_defs.h | 12 +++++++-
drivers/net/vmxnet3/vmxnet3_drv.c | 55 ++++++++++++++++++++++++++---------
drivers/net/vmxnet3/vmxnet3_ethtool.c | 9 +++---
drivers/net/vmxnet3/vmxnet3_int.h | 7 ++++-
4 files changed, 64 insertions(+), 19 deletions(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index a26a69d..701d989 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -92,6 +92,7 @@ enum {
VMXNET3_CMD_GET_DEV_EXTRA_INFO,
VMXNET3_CMD_GET_CONF_INTR,
VMXNET3_CMD_GET_RESERVED1,
+ VMXNET3_CMD_GET_TXDATA_DESC_SIZE
};
/*
@@ -377,6 +378,10 @@ union Vmxnet3_GenericDesc {
#define VMXNET3_RING_SIZE_ALIGN 32
#define VMXNET3_RING_SIZE_MASK (VMXNET3_RING_SIZE_ALIGN - 1)
+/* Tx Data Ring buffer size must be a multiple of 64 */
+#define VMXNET3_TXDATA_DESC_SIZE_ALIGN 64
+#define VMXNET3_TXDATA_DESC_SIZE_MASK (VMXNET3_TXDATA_DESC_SIZE_ALIGN - 1)
+
/* Max ring size */
#define VMXNET3_TX_RING_MAX_SIZE 4096
#define VMXNET3_TC_RING_MAX_SIZE 4096
@@ -384,6 +389,9 @@ union Vmxnet3_GenericDesc {
#define VMXNET3_RX_RING2_MAX_SIZE 4096
#define VMXNET3_RC_RING_MAX_SIZE 8192
+#define VMXNET3_TXDATA_DESC_MIN_SIZE 128
+#define VMXNET3_TXDATA_DESC_MAX_SIZE 2048
+
/* a list of reasons for queue stop */
enum {
@@ -470,7 +478,9 @@ struct Vmxnet3_TxQueueConf {
__le32 compRingSize; /* # of comp desc */
__le32 ddLen; /* size of driver data */
u8 intrIdx;
- u8 _pad[7];
+ u8 _pad1[1];
+ __le16 txDataRingDescSize;
+ u8 _pad2[4];
};
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 507c53d..4e42eb0 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -435,8 +435,8 @@ vmxnet3_tq_destroy(struct vmxnet3_tx_queue *tq,
tq->tx_ring.base = NULL;
}
if (tq->data_ring.base) {
- dma_free_coherent(&adapter->pdev->dev, tq->data_ring.size *
- sizeof(struct Vmxnet3_TxDataDesc),
+ dma_free_coherent(&adapter->pdev->dev,
+ tq->data_ring.size * tq->txdata_desc_size,
tq->data_ring.base, tq->data_ring.basePA);
tq->data_ring.base = NULL;
}
@@ -478,8 +478,8 @@ vmxnet3_tq_init(struct vmxnet3_tx_queue *tq,
tq->tx_ring.next2fill = tq->tx_ring.next2comp = 0;
tq->tx_ring.gen = VMXNET3_INIT_GEN;
- memset(tq->data_ring.base, 0, tq->data_ring.size *
- sizeof(struct Vmxnet3_TxDataDesc));
+ memset(tq->data_ring.base, 0,
+ tq->data_ring.size * tq->txdata_desc_size);
/* reset the tx comp ring contents to 0 and reset comp ring states */
memset(tq->comp_ring.base, 0, tq->comp_ring.size *
@@ -514,10 +514,10 @@ vmxnet3_tq_create(struct vmxnet3_tx_queue *tq,
}
tq->data_ring.base = dma_alloc_coherent(&adapter->pdev->dev,
- tq->data_ring.size * sizeof(struct Vmxnet3_TxDataDesc),
+ tq->data_ring.size * tq->txdata_desc_size,
&tq->data_ring.basePA, GFP_KERNEL);
if (!tq->data_ring.base) {
- netdev_err(adapter->netdev, "failed to allocate data ring\n");
+ netdev_err(adapter->netdev, "failed to allocate tx data ring\n");
goto err;
}
@@ -689,7 +689,7 @@ vmxnet3_map_pkt(struct sk_buff *skb, struct vmxnet3_tx_ctx *ctx,
if (ctx->copy_size) {
ctx->sop_txd->txd.addr = cpu_to_le64(tq->data_ring.basePA +
tq->tx_ring.next2fill *
- sizeof(struct Vmxnet3_TxDataDesc));
+ tq->txdata_desc_size);
ctx->sop_txd->dword[2] = cpu_to_le32(dw2 | ctx->copy_size);
ctx->sop_txd->dword[3] = 0;
@@ -873,8 +873,9 @@ vmxnet3_parse_hdr(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
ctx->eth_ip_hdr_size = 0;
ctx->l4_hdr_size = 0;
/* copy as much as allowed */
- ctx->copy_size = min((unsigned int)VMXNET3_HDR_COPY_SIZE
- , skb_headlen(skb));
+ ctx->copy_size = min_t(unsigned int,
+ tq->txdata_desc_size,
+ skb_headlen(skb));
}
if (skb->len <= VMXNET3_HDR_COPY_SIZE)
@@ -885,7 +886,7 @@ vmxnet3_parse_hdr(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
goto err;
}
- if (unlikely(ctx->copy_size > VMXNET3_HDR_COPY_SIZE)) {
+ if (unlikely(ctx->copy_size > tq->txdata_desc_size)) {
tq->stats.oversized_hdr++;
ctx->copy_size = 0;
return 0;
@@ -2336,6 +2337,7 @@ vmxnet3_setup_driver_shared(struct vmxnet3_adapter *adapter)
tqc->ddPA = cpu_to_le64(tq->buf_info_pa);
tqc->txRingSize = cpu_to_le32(tq->tx_ring.size);
tqc->dataRingSize = cpu_to_le32(tq->data_ring.size);
+ tqc->txDataRingDescSize = cpu_to_le32(tq->txdata_desc_size);
tqc->compRingSize = cpu_to_le32(tq->comp_ring.size);
tqc->ddLen = cpu_to_le32(
sizeof(struct vmxnet3_tx_buf_info) *
@@ -2689,7 +2691,8 @@ vmxnet3_adjust_rx_ring_size(struct vmxnet3_adapter *adapter)
int
vmxnet3_create_queues(struct vmxnet3_adapter *adapter, u32 tx_ring_size,
- u32 rx_ring_size, u32 rx_ring2_size)
+ u32 rx_ring_size, u32 rx_ring2_size,
+ u16 txdata_desc_size)
{
int err = 0, i;
@@ -2698,6 +2701,7 @@ vmxnet3_create_queues(struct vmxnet3_adapter *adapter, u32 tx_ring_size,
tq->tx_ring.size = tx_ring_size;
tq->data_ring.size = tx_ring_size;
tq->comp_ring.size = tx_ring_size;
+ tq->txdata_desc_size = txdata_desc_size;
tq->shared = &adapter->tqd_start[i].ctrl;
tq->stopped = true;
tq->adapter = adapter;
@@ -2754,9 +2758,34 @@ vmxnet3_open(struct net_device *netdev)
for (i = 0; i < adapter->num_tx_queues; i++)
spin_lock_init(&adapter->tx_queue[i].tx_lock);
- err = vmxnet3_create_queues(adapter, adapter->tx_ring_size,
+ if (VMXNET3_VERSION_GE_3(adapter)) {
+ unsigned long flags;
+ u16 txdata_desc_size;
+
+ spin_lock_irqsave(&adapter->cmd_lock, flags);
+ VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
+ VMXNET3_CMD_GET_TXDATA_DESC_SIZE);
+ txdata_desc_size = VMXNET3_READ_BAR1_REG(adapter,
+ VMXNET3_REG_CMD);
+ spin_unlock_irqrestore(&adapter->cmd_lock, flags);
+
+ if ((txdata_desc_size < VMXNET3_TXDATA_DESC_MIN_SIZE) ||
+ (txdata_desc_size > VMXNET3_TXDATA_DESC_MAX_SIZE) ||
+ (txdata_desc_size & VMXNET3_TXDATA_DESC_SIZE_MASK)) {
+ adapter->txdata_desc_size =
+ sizeof(struct Vmxnet3_TxDataDesc);
+ } else {
+ adapter->txdata_desc_size = txdata_desc_size;
+ }
+ } else {
+ adapter->txdata_desc_size = sizeof(struct Vmxnet3_TxDataDesc);
+ }
+
+ err = vmxnet3_create_queues(adapter,
+ adapter->tx_ring_size,
adapter->rx_ring_size,
- adapter->rx_ring2_size);
+ adapter->rx_ring2_size,
+ adapter->txdata_desc_size);
if (err)
goto queue_err;
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 163e99c..3b70cfe 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -396,8 +396,7 @@ vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA);
buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA);
buf[j++] = tq->data_ring.size;
- /* transmit data ring buffer size */
- buf[j++] = VMXNET3_HDR_COPY_SIZE;
+ buf[j++] = tq->txdata_desc_size;
buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA);
buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA);
@@ -591,7 +590,8 @@ vmxnet3_set_ringparam(struct net_device *netdev,
vmxnet3_rq_destroy_all(adapter);
err = vmxnet3_create_queues(adapter, new_tx_ring_size,
- new_rx_ring_size, new_rx_ring2_size);
+ new_rx_ring_size, new_rx_ring2_size,
+ adapter->txdata_desc_size);
if (err) {
/* failed, most likely because of OOM, try default
@@ -604,7 +604,8 @@ vmxnet3_set_ringparam(struct net_device *netdev,
err = vmxnet3_create_queues(adapter,
new_tx_ring_size,
new_rx_ring_size,
- new_rx_ring2_size);
+ new_rx_ring2_size,
+ adapter->txdata_desc_size);
if (err) {
netdev_err(netdev, "failed to create queues "
"with default sizes. Closing it\n");
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index de068e9..94010de 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -241,6 +241,7 @@ struct vmxnet3_tx_queue {
int num_stop; /* # of times the queue is
* stopped */
int qid;
+ u16 txdata_desc_size;
} __attribute__((__aligned__(SMP_CACHE_BYTES)));
enum vmxnet3_rx_buf_type {
@@ -363,6 +364,9 @@ struct vmxnet3_adapter {
u32 rx_ring_size;
u32 rx_ring2_size;
+ /* Size of buffer in the data ring */
+ u16 txdata_desc_size;
+
struct work_struct work;
unsigned long state; /* VMXNET3_STATE_BIT_xxx */
@@ -427,7 +431,8 @@ vmxnet3_set_features(struct net_device *netdev, netdev_features_t features);
int
vmxnet3_create_queues(struct vmxnet3_adapter *adapter,
- u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size);
+ u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size,
+ u16 txdata_desc_size);
void vmxnet3_set_ethtool_ops(struct net_device *netdev);
--
2.8.2
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH net-next v3 4/7] vmxnet3: add receive data ring support
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
` (2 preceding siblings ...)
2016-06-14 1:50 ` [PATCH net-next v3 3/7] vmxnet3: allow variable length transmit data ring buffer Shrikrishna Khare
@ 2016-06-14 1:50 ` Shrikrishna Khare
2016-06-14 1:50 ` [PATCH net-next v3 5/7] vmxnet3: add support for get_coalesce, set_coalesce ethtool operations Shrikrishna Khare
` (4 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Shrikrishna Khare @ 2016-06-14 1:50 UTC (permalink / raw)
To: netdev, linux-kernel, pv-drivers; +Cc: Shrikrishna Khare
Receive Data Ring buffer length is configurable via ethtool -G ethX rx-mini
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_defs.h | 14 +++-
drivers/net/vmxnet3/vmxnet3_drv.c | 153 +++++++++++++++++++++++++++-------
drivers/net/vmxnet3/vmxnet3_ethtool.c | 48 ++++++++---
drivers/net/vmxnet3/vmxnet3_int.h | 23 ++++-
4 files changed, 193 insertions(+), 45 deletions(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index 701d989..f3b31c2 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -174,6 +174,8 @@ struct Vmxnet3_TxDataDesc {
u8 data[VMXNET3_HDR_COPY_SIZE];
};
+typedef u8 Vmxnet3_RxDataDesc;
+
#define VMXNET3_TCD_GEN_SHIFT 31
#define VMXNET3_TCD_GEN_SIZE 1
#define VMXNET3_TCD_TXIDX_SHIFT 0
@@ -382,6 +384,10 @@ union Vmxnet3_GenericDesc {
#define VMXNET3_TXDATA_DESC_SIZE_ALIGN 64
#define VMXNET3_TXDATA_DESC_SIZE_MASK (VMXNET3_TXDATA_DESC_SIZE_ALIGN - 1)
+/* Rx Data Ring buffer size must be a multiple of 64 */
+#define VMXNET3_RXDATA_DESC_SIZE_ALIGN 64
+#define VMXNET3_RXDATA_DESC_SIZE_MASK (VMXNET3_RXDATA_DESC_SIZE_ALIGN - 1)
+
/* Max ring size */
#define VMXNET3_TX_RING_MAX_SIZE 4096
#define VMXNET3_TC_RING_MAX_SIZE 4096
@@ -392,6 +398,8 @@ union Vmxnet3_GenericDesc {
#define VMXNET3_TXDATA_DESC_MIN_SIZE 128
#define VMXNET3_TXDATA_DESC_MAX_SIZE 2048
+#define VMXNET3_RXDATA_DESC_MAX_SIZE 2048
+
/* a list of reasons for queue stop */
enum {
@@ -488,12 +496,14 @@ struct Vmxnet3_RxQueueConf {
__le64 rxRingBasePA[2];
__le64 compRingBasePA;
__le64 ddPA; /* driver data */
- __le64 reserved;
+ __le64 rxDataRingBasePA;
__le32 rxRingSize[2]; /* # of rx desc */
__le32 compRingSize; /* # of rx comp desc */
__le32 ddLen; /* size of driver data */
u8 intrIdx;
- u8 _pad[7];
+ u8 _pad1[1];
+ __le16 rxDataRingDescSize; /* size of rx data ring buffer */
+ u8 _pad2[4];
};
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 4e42eb0..6449d2e 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -1284,9 +1284,10 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
*/
break;
}
- BUG_ON(rcd->rqID != rq->qid && rcd->rqID != rq->qid2);
+ BUG_ON(rcd->rqID != rq->qid && rcd->rqID != rq->qid2 &&
+ rcd->rqID != rq->dataRingQid);
idx = rcd->rxdIdx;
- ring_idx = rcd->rqID < adapter->num_rx_queues ? 0 : 1;
+ ring_idx = VMXNET3_GET_RING_IDX(adapter, rcd->rqID);
ring = rq->rx_ring + ring_idx;
vmxnet3_getRxDesc(rxd, &rq->rx_ring[ring_idx].base[idx].rxd,
&rxCmdDesc);
@@ -1301,8 +1302,12 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
}
if (rcd->sop) { /* first buf of the pkt */
+ bool rxDataRingUsed;
+ u16 len;
+
BUG_ON(rxd->btype != VMXNET3_RXD_BTYPE_HEAD ||
- rcd->rqID != rq->qid);
+ (rcd->rqID != rq->qid &&
+ rcd->rqID != rq->dataRingQid));
BUG_ON(rbi->buf_type != VMXNET3_RX_BUF_SKB);
BUG_ON(ctx->skb != NULL || rbi->skb == NULL);
@@ -1318,8 +1323,12 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
skip_page_frags = false;
ctx->skb = rbi->skb;
+
+ rxDataRingUsed =
+ VMXNET3_RX_DATA_RING(adapter, rcd->rqID);
+ len = rxDataRingUsed ? rcd->len : rbi->len;
new_skb = netdev_alloc_skb_ip_align(adapter->netdev,
- rbi->len);
+ len);
if (new_skb == NULL) {
/* Skb allocation failed, do not handover this
* skb to stack. Reuse it. Drop the existing pkt
@@ -1330,25 +1339,48 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
skip_page_frags = true;
goto rcd_done;
}
- new_dma_addr = dma_map_single(&adapter->pdev->dev,
- new_skb->data, rbi->len,
- PCI_DMA_FROMDEVICE);
- if (dma_mapping_error(&adapter->pdev->dev,
- new_dma_addr)) {
- dev_kfree_skb(new_skb);
- /* Skb allocation failed, do not handover this
- * skb to stack. Reuse it. Drop the existing pkt
- */
- rq->stats.rx_buf_alloc_failure++;
- ctx->skb = NULL;
- rq->stats.drop_total++;
- skip_page_frags = true;
- goto rcd_done;
- }
- dma_unmap_single(&adapter->pdev->dev, rbi->dma_addr,
- rbi->len,
- PCI_DMA_FROMDEVICE);
+ if (rxDataRingUsed) {
+ size_t sz;
+
+ BUG_ON(rcd->len > rq->data_ring.desc_size);
+
+ ctx->skb = new_skb;
+ sz = rcd->rxdIdx * rq->data_ring.desc_size;
+ memcpy(new_skb->data,
+ &rq->data_ring.base[sz], rcd->len);
+ } else {
+ ctx->skb = rbi->skb;
+
+ new_dma_addr =
+ dma_map_single(&adapter->pdev->dev,
+ new_skb->data, rbi->len,
+ PCI_DMA_FROMDEVICE);
+ if (dma_mapping_error(&adapter->pdev->dev,
+ new_dma_addr)) {
+ dev_kfree_skb(new_skb);
+ /* Skb allocation failed, do not
+ * handover this skb to stack. Reuse
+ * it. Drop the existing pkt.
+ */
+ rq->stats.rx_buf_alloc_failure++;
+ ctx->skb = NULL;
+ rq->stats.drop_total++;
+ skip_page_frags = true;
+ goto rcd_done;
+ }
+
+ dma_unmap_single(&adapter->pdev->dev,
+ rbi->dma_addr,
+ rbi->len,
+ PCI_DMA_FROMDEVICE);
+
+ /* Immediate refill */
+ rbi->skb = new_skb;
+ rbi->dma_addr = new_dma_addr;
+ rxd->addr = cpu_to_le64(rbi->dma_addr);
+ rxd->len = rbi->len;
+ }
#ifdef VMXNET3_RSS
if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE &&
@@ -1359,11 +1391,6 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
#endif
skb_put(ctx->skb, rcd->len);
- /* Immediate refill */
- rbi->skb = new_skb;
- rbi->dma_addr = new_dma_addr;
- rxd->addr = cpu_to_le64(rbi->dma_addr);
- rxd->len = rbi->len;
if (VMXNET3_VERSION_GE_2(adapter) &&
rcd->type == VMXNET3_CDTYPE_RXCOMP_LRO) {
struct Vmxnet3_RxCompDescExt *rcdlro;
@@ -1590,6 +1617,13 @@ static void vmxnet3_rq_destroy(struct vmxnet3_rx_queue *rq,
rq->buf_info[i] = NULL;
}
+ if (rq->data_ring.base) {
+ dma_free_coherent(&adapter->pdev->dev,
+ rq->rx_ring[0].size * rq->data_ring.desc_size,
+ rq->data_ring.base, rq->data_ring.basePA);
+ rq->data_ring.base = NULL;
+ }
+
if (rq->comp_ring.base) {
dma_free_coherent(&adapter->pdev->dev, rq->comp_ring.size
* sizeof(struct Vmxnet3_RxCompDesc),
@@ -1605,6 +1639,25 @@ static void vmxnet3_rq_destroy(struct vmxnet3_rx_queue *rq,
}
}
+void
+vmxnet3_rq_destroy_all_rxdataring(struct vmxnet3_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
+
+ if (rq->data_ring.base) {
+ dma_free_coherent(&adapter->pdev->dev,
+ (rq->rx_ring[0].size *
+ rq->data_ring.desc_size),
+ rq->data_ring.base,
+ rq->data_ring.basePA);
+ rq->data_ring.base = NULL;
+ rq->data_ring.desc_size = 0;
+ }
+ }
+}
static int
vmxnet3_rq_init(struct vmxnet3_rx_queue *rq,
@@ -1698,6 +1751,22 @@ vmxnet3_rq_create(struct vmxnet3_rx_queue *rq, struct vmxnet3_adapter *adapter)
}
}
+ if ((adapter->rxdataring_enabled) && (rq->data_ring.desc_size != 0)) {
+ sz = rq->rx_ring[0].size * rq->data_ring.desc_size;
+ rq->data_ring.base =
+ dma_alloc_coherent(&adapter->pdev->dev, sz,
+ &rq->data_ring.basePA,
+ GFP_KERNEL);
+ if (!rq->data_ring.base) {
+ netdev_err(adapter->netdev,
+ "rx data ring will be disabled\n");
+ adapter->rxdataring_enabled = false;
+ }
+ } else {
+ rq->data_ring.base = NULL;
+ rq->data_ring.desc_size = 0;
+ }
+
sz = rq->comp_ring.size * sizeof(struct Vmxnet3_RxCompDesc);
rq->comp_ring.base = dma_alloc_coherent(&adapter->pdev->dev, sz,
&rq->comp_ring.basePA,
@@ -1730,6 +1799,8 @@ vmxnet3_rq_create_all(struct vmxnet3_adapter *adapter)
{
int i, err = 0;
+ adapter->rxdataring_enabled = VMXNET3_VERSION_GE_3(adapter);
+
for (i = 0; i < adapter->num_rx_queues; i++) {
err = vmxnet3_rq_create(&adapter->rx_queue[i], adapter);
if (unlikely(err)) {
@@ -1739,6 +1810,10 @@ vmxnet3_rq_create_all(struct vmxnet3_adapter *adapter)
goto err_out;
}
}
+
+ if (!adapter->rxdataring_enabled)
+ vmxnet3_rq_destroy_all_rxdataring(adapter);
+
return err;
err_out:
vmxnet3_rq_destroy_all(adapter);
@@ -2046,10 +2121,9 @@ vmxnet3_request_irqs(struct vmxnet3_adapter *adapter)
struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
rq->qid = i;
rq->qid2 = i + adapter->num_rx_queues;
+ rq->dataRingQid = i + 2 * adapter->num_rx_queues;
}
-
-
/* init our intr settings */
for (i = 0; i < intr->num_intrs; i++)
intr->mod_levels[i] = UPT1_IML_ADAPTIVE;
@@ -2362,6 +2436,12 @@ vmxnet3_setup_driver_shared(struct vmxnet3_adapter *adapter)
(rqc->rxRingSize[0] +
rqc->rxRingSize[1]));
rqc->intrIdx = rq->comp_ring.intr_idx;
+ if (VMXNET3_VERSION_GE_3(adapter)) {
+ rqc->rxDataRingBasePA =
+ cpu_to_le64(rq->data_ring.basePA);
+ rqc->rxDataRingDescSize =
+ cpu_to_le16(rq->data_ring.desc_size);
+ }
}
#ifdef VMXNET3_RSS
@@ -2692,7 +2772,7 @@ vmxnet3_adjust_rx_ring_size(struct vmxnet3_adapter *adapter)
int
vmxnet3_create_queues(struct vmxnet3_adapter *adapter, u32 tx_ring_size,
u32 rx_ring_size, u32 rx_ring2_size,
- u16 txdata_desc_size)
+ u16 txdata_desc_size, u16 rxdata_desc_size)
{
int err = 0, i;
@@ -2718,12 +2798,15 @@ vmxnet3_create_queues(struct vmxnet3_adapter *adapter, u32 tx_ring_size,
adapter->rx_queue[0].rx_ring[0].size = rx_ring_size;
adapter->rx_queue[0].rx_ring[1].size = rx_ring2_size;
vmxnet3_adjust_rx_ring_size(adapter);
+
+ adapter->rxdataring_enabled = VMXNET3_VERSION_GE_3(adapter);
for (i = 0; i < adapter->num_rx_queues; i++) {
struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
/* qid and qid2 for rx queues will be assigned later when num
* of rx queues is finalized after allocating intrs */
rq->shared = &adapter->rqd_start[i].ctrl;
rq->adapter = adapter;
+ rq->data_ring.desc_size = rxdata_desc_size;
err = vmxnet3_rq_create(rq, adapter);
if (err) {
if (i == 0) {
@@ -2741,6 +2824,10 @@ vmxnet3_create_queues(struct vmxnet3_adapter *adapter, u32 tx_ring_size,
}
}
}
+
+ if (!adapter->rxdataring_enabled)
+ vmxnet3_rq_destroy_all_rxdataring(adapter);
+
return err;
queue_err:
vmxnet3_tq_destroy_all(adapter);
@@ -2785,7 +2872,8 @@ vmxnet3_open(struct net_device *netdev)
adapter->tx_ring_size,
adapter->rx_ring_size,
adapter->rx_ring2_size,
- adapter->txdata_desc_size);
+ adapter->txdata_desc_size,
+ adapter->rxdata_desc_size);
if (err)
goto queue_err;
@@ -3260,6 +3348,9 @@ vmxnet3_probe_device(struct pci_dev *pdev,
SET_NETDEV_DEV(netdev, &pdev->dev);
vmxnet3_declare_features(adapter, dma64);
+ adapter->rxdata_desc_size = VMXNET3_VERSION_GE_3(adapter) ?
+ VMXNET3_DEF_RXDATA_DESC_SIZE : 0;
+
if (adapter->num_tx_queues == adapter->num_rx_queues)
adapter->share_intr = VMXNET3_INTR_BUDDYSHARE;
else
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 3b70cfe..38f7c79 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -430,11 +430,10 @@ vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
buf[j++] = rq->rx_ring[1].next2comp;
buf[j++] = rq->rx_ring[1].gen;
- /* receive data ring */
- buf[j++] = 0;
- buf[j++] = 0;
- buf[j++] = 0;
- buf[j++] = 0;
+ buf[j++] = VMXNET3_GET_ADDR_LO(rq->data_ring.basePA);
+ buf[j++] = VMXNET3_GET_ADDR_HI(rq->data_ring.basePA);
+ buf[j++] = rq->rx_ring[0].size;
+ buf[j++] = rq->data_ring.desc_size;
buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA);
buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA);
@@ -503,12 +502,14 @@ vmxnet3_get_ringparam(struct net_device *netdev,
param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
- param->rx_mini_max_pending = 0;
+ param->rx_mini_max_pending = VMXNET3_VERSION_GE_3(adapter) ?
+ VMXNET3_RXDATA_DESC_MAX_SIZE : 0;
param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE;
param->rx_pending = adapter->rx_ring_size;
param->tx_pending = adapter->tx_ring_size;
- param->rx_mini_pending = 0;
+ param->rx_mini_pending = VMXNET3_VERSION_GE_3(adapter) ?
+ adapter->rxdata_desc_size : 0;
param->rx_jumbo_pending = adapter->rx_ring2_size;
}
@@ -519,6 +520,7 @@ vmxnet3_set_ringparam(struct net_device *netdev,
{
struct vmxnet3_adapter *adapter = netdev_priv(netdev);
u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size;
+ u16 new_rxdata_desc_size;
u32 sz;
int err = 0;
@@ -541,6 +543,15 @@ vmxnet3_set_ringparam(struct net_device *netdev,
return -EOPNOTSUPP;
}
+ if (VMXNET3_VERSION_GE_3(adapter)) {
+ if (param->rx_mini_pending < 0 ||
+ param->rx_mini_pending > VMXNET3_RXDATA_DESC_MAX_SIZE) {
+ return -EINVAL;
+ }
+ } else if (param->rx_mini_pending != 0) {
+ return -EINVAL;
+ }
+
/* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
~VMXNET3_RING_SIZE_MASK;
@@ -567,9 +578,19 @@ vmxnet3_set_ringparam(struct net_device *netdev,
new_rx_ring2_size = min_t(u32, new_rx_ring2_size,
VMXNET3_RX_RING2_MAX_SIZE);
+ /* rx data ring buffer size has to be a multiple of
+ * VMXNET3_RXDATA_DESC_SIZE_ALIGN
+ */
+ new_rxdata_desc_size =
+ (param->rx_mini_pending + VMXNET3_RXDATA_DESC_SIZE_MASK) &
+ ~VMXNET3_RXDATA_DESC_SIZE_MASK;
+ new_rxdata_desc_size = min_t(u16, new_rxdata_desc_size,
+ VMXNET3_RXDATA_DESC_MAX_SIZE);
+
if (new_tx_ring_size == adapter->tx_ring_size &&
new_rx_ring_size == adapter->rx_ring_size &&
- new_rx_ring2_size == adapter->rx_ring2_size) {
+ new_rx_ring2_size == adapter->rx_ring2_size &&
+ new_rxdata_desc_size == adapter->rxdata_desc_size) {
return 0;
}
@@ -591,8 +612,8 @@ vmxnet3_set_ringparam(struct net_device *netdev,
err = vmxnet3_create_queues(adapter, new_tx_ring_size,
new_rx_ring_size, new_rx_ring2_size,
- adapter->txdata_desc_size);
-
+ adapter->txdata_desc_size,
+ new_rxdata_desc_size);
if (err) {
/* failed, most likely because of OOM, try default
* size */
@@ -601,11 +622,15 @@ vmxnet3_set_ringparam(struct net_device *netdev,
new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE;
new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
+ new_rxdata_desc_size = VMXNET3_VERSION_GE_3(adapter) ?
+ VMXNET3_DEF_RXDATA_DESC_SIZE : 0;
+
err = vmxnet3_create_queues(adapter,
new_tx_ring_size,
new_rx_ring_size,
new_rx_ring2_size,
- adapter->txdata_desc_size);
+ adapter->txdata_desc_size,
+ new_rxdata_desc_size);
if (err) {
netdev_err(netdev, "failed to create queues "
"with default sizes. Closing it\n");
@@ -621,6 +646,7 @@ vmxnet3_set_ringparam(struct net_device *netdev,
adapter->tx_ring_size = new_tx_ring_size;
adapter->rx_ring_size = new_rx_ring_size;
adapter->rx_ring2_size = new_rx_ring2_size;
+ adapter->rxdata_desc_size = new_rxdata_desc_size;
out:
clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index 94010de..c46bf09 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -272,15 +272,23 @@ struct vmxnet3_rq_driver_stats {
u64 rx_buf_alloc_failure;
};
+struct vmxnet3_rx_data_ring {
+ Vmxnet3_RxDataDesc *base;
+ dma_addr_t basePA;
+ u16 desc_size;
+};
+
struct vmxnet3_rx_queue {
char name[IFNAMSIZ + 8]; /* To identify interrupt */
struct vmxnet3_adapter *adapter;
struct napi_struct napi;
struct vmxnet3_cmd_ring rx_ring[2];
+ struct vmxnet3_rx_data_ring data_ring;
struct vmxnet3_comp_ring comp_ring;
struct vmxnet3_rx_ctx rx_ctx;
u32 qid; /* rqID in RCD for buffer from 1st ring */
u32 qid2; /* rqID in RCD for buffer from 2nd ring */
+ u32 dataRingQid; /* rqID in RCD for buffer from data ring */
struct vmxnet3_rx_buf_info *buf_info[2];
dma_addr_t buf_info_pa;
struct Vmxnet3_RxQueueCtrl *shared;
@@ -366,6 +374,9 @@ struct vmxnet3_adapter {
/* Size of buffer in the data ring */
u16 txdata_desc_size;
+ u16 rxdata_desc_size;
+
+ bool rxdataring_enabled;
struct work_struct work;
@@ -405,9 +416,19 @@ struct vmxnet3_adapter {
#define VMXNET3_DEF_RX_RING_SIZE 256
#define VMXNET3_DEF_RX_RING2_SIZE 128
+#define VMXNET3_DEF_RXDATA_DESC_SIZE 128
+
#define VMXNET3_MAX_ETH_HDR_SIZE 22
#define VMXNET3_MAX_SKB_BUF_SIZE (3*1024)
+#define VMXNET3_GET_RING_IDX(adapter, rqID) \
+ ((rqID >= adapter->num_rx_queues && \
+ rqID < 2 * adapter->num_rx_queues) ? 1 : 0) \
+
+#define VMXNET3_RX_DATA_RING(adapter, rqID) \
+ (rqID >= 2 * adapter->num_rx_queues && \
+ rqID < 3 * adapter->num_rx_queues) \
+
int
vmxnet3_quiesce_dev(struct vmxnet3_adapter *adapter);
@@ -432,7 +453,7 @@ vmxnet3_set_features(struct net_device *netdev, netdev_features_t features);
int
vmxnet3_create_queues(struct vmxnet3_adapter *adapter,
u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size,
- u16 txdata_desc_size);
+ u16 txdata_desc_size, u16 rxdata_desc_size);
void vmxnet3_set_ethtool_ops(struct net_device *netdev);
--
2.8.2
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH net-next v3 5/7] vmxnet3: add support for get_coalesce, set_coalesce ethtool operations
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
` (3 preceding siblings ...)
2016-06-14 1:50 ` [PATCH net-next v3 4/7] vmxnet3: add receive data ring support Shrikrishna Khare
@ 2016-06-14 1:50 ` Shrikrishna Khare
2016-06-14 15:04 ` Ben Hutchings
2016-06-14 1:50 ` [PATCH net-next v3 6/7] vmxnet3: introduce command to register memory region Shrikrishna Khare
` (3 subsequent siblings)
8 siblings, 1 reply; 12+ messages in thread
From: Shrikrishna Khare @ 2016-06-14 1:50 UTC (permalink / raw)
To: netdev, linux-kernel, pv-drivers
Cc: Shrikrishna Khare, Keyong Sun, Manoj Tammali
Signed-off-by: Keyong Sun <sunk@vmware.com>
Signed-off-by: Manoj Tammali <tammalim@vmware.com>
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_defs.h | 33 ++++++-
drivers/net/vmxnet3/vmxnet3_drv.c | 54 ++++++++++++
drivers/net/vmxnet3/vmxnet3_ethtool.c | 160 ++++++++++++++++++++++++++++++++++
drivers/net/vmxnet3/vmxnet3_int.h | 9 ++
4 files changed, 255 insertions(+), 1 deletion(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index f3b31c2..274e145 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -80,6 +80,7 @@ enum {
VMXNET3_CMD_LOAD_PLUGIN,
VMXNET3_CMD_RESERVED2,
VMXNET3_CMD_RESERVED3,
+ VMXNET3_CMD_SET_COALESCE,
VMXNET3_CMD_FIRST_GET = 0xF00D0000,
VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
@@ -92,7 +93,8 @@ enum {
VMXNET3_CMD_GET_DEV_EXTRA_INFO,
VMXNET3_CMD_GET_CONF_INTR,
VMXNET3_CMD_GET_RESERVED1,
- VMXNET3_CMD_GET_TXDATA_DESC_SIZE
+ VMXNET3_CMD_GET_TXDATA_DESC_SIZE,
+ VMXNET3_CMD_GET_COALESCE,
};
/*
@@ -637,6 +639,35 @@ struct Vmxnet3_SetPolling {
u8 enablePolling;
};
+#define VMXNET3_COAL_STATIC_MAX_DEPTH 128
+#define VMXNET3_COAL_RBC_MIN_RATE 100
+#define VMXNET3_COAL_RBC_MAX_RATE 100000
+
+enum Vmxnet3_CoalesceMode {
+ VMXNET3_COALESCE_DISABLED = 0,
+ VMXNET3_COALESCE_ADAPT = 1,
+ VMXNET3_COALESCE_STATIC = 2,
+ VMXNET3_COALESCE_RBC = 3
+};
+
+struct Vmxnet3_CoalesceRbc {
+ u32 rbc_rate;
+};
+
+struct Vmxnet3_CoalesceStatic {
+ u32 tx_depth;
+ u32 tx_comp_depth;
+ u32 rx_depth;
+};
+
+struct Vmxnet3_CoalesceScheme {
+ enum Vmxnet3_CoalesceMode coalMode;
+ union {
+ struct Vmxnet3_CoalesceRbc coalRbc;
+ struct Vmxnet3_CoalesceStatic coalStatic;
+ } coalPara;
+};
+
/* If the command data <= 16 bytes, use the shared memory directly.
* otherwise, use variable length configuration descriptor.
*/
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 6449d2e..d0bcc1d9 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -2491,6 +2491,32 @@ vmxnet3_setup_driver_shared(struct vmxnet3_adapter *adapter)
/* the rest are already zeroed */
}
+static void
+vmxnet3_init_coalesce(struct vmxnet3_adapter *adapter)
+{
+ struct Vmxnet3_DriverShared *shared = adapter->shared;
+ union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo;
+ unsigned long flags;
+
+ if (!VMXNET3_VERSION_GE_3(adapter))
+ return;
+
+ spin_lock_irqsave(&adapter->cmd_lock, flags);
+ cmdInfo->varConf.confVer = 1;
+ cmdInfo->varConf.confLen =
+ cpu_to_le32(sizeof(*adapter->coal_conf));
+ cmdInfo->varConf.confPA = cpu_to_le64(adapter->coal_conf_pa);
+
+ if (adapter->default_coal_mode) {
+ VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
+ VMXNET3_CMD_GET_COALESCE);
+ } else {
+ VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
+ VMXNET3_CMD_SET_COALESCE);
+ }
+
+ spin_unlock_irqrestore(&adapter->cmd_lock, flags);
+}
int
vmxnet3_activate_dev(struct vmxnet3_adapter *adapter)
@@ -2540,6 +2566,8 @@ vmxnet3_activate_dev(struct vmxnet3_adapter *adapter)
goto activate_err;
}
+ vmxnet3_init_coalesce(adapter);
+
for (i = 0; i < adapter->num_rx_queues; i++) {
VMXNET3_WRITE_BAR0_REG(adapter,
VMXNET3_REG_RXPROD + i * VMXNET3_REG_ALIGN,
@@ -3345,6 +3373,22 @@ vmxnet3_probe_device(struct pci_dev *pdev,
goto err_ver;
}
+ if (VMXNET3_VERSION_GE_3(adapter)) {
+ adapter->coal_conf =
+ dma_alloc_coherent(&adapter->pdev->dev,
+ sizeof(struct Vmxnet3_CoalesceScheme)
+ ,
+ &adapter->coal_conf_pa,
+ GFP_KERNEL);
+ if (!adapter->coal_conf) {
+ err = -ENOMEM;
+ goto err_ver;
+ }
+ memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
+ adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED;
+ adapter->default_coal_mode = true;
+ }
+
SET_NETDEV_DEV(netdev, &pdev->dev);
vmxnet3_declare_features(adapter, dma64);
@@ -3407,6 +3451,11 @@ vmxnet3_probe_device(struct pci_dev *pdev,
return 0;
err_register:
+ if (VMXNET3_VERSION_GE_3(adapter)) {
+ dma_free_coherent(&adapter->pdev->dev,
+ sizeof(struct Vmxnet3_CoalesceScheme),
+ adapter->coal_conf, adapter->coal_conf_pa);
+ }
vmxnet3_free_intr_resources(adapter);
err_ver:
vmxnet3_free_pci_resources(adapter);
@@ -3457,6 +3506,11 @@ vmxnet3_remove_device(struct pci_dev *pdev)
vmxnet3_free_intr_resources(adapter);
vmxnet3_free_pci_resources(adapter);
+ if (VMXNET3_VERSION_GE_3(adapter)) {
+ dma_free_coherent(&adapter->pdev->dev,
+ sizeof(struct Vmxnet3_CoalesceScheme),
+ adapter->coal_conf, adapter->coal_conf_pa);
+ }
#ifdef VMXNET3_RSS
dma_free_coherent(&adapter->pdev->dev, sizeof(struct UPT1_RSSConf),
adapter->rss_conf, adapter->rss_conf_pa);
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 38f7c79..3a0ada6 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -725,6 +725,164 @@ vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
}
#endif
+static int
+vmxnet3_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
+{
+ struct vmxnet3_adapter *adapter = netdev_priv(netdev);
+
+ if (!VMXNET3_VERSION_GE_3(adapter))
+ return -EOPNOTSUPP;
+
+ memset(ec, 0, sizeof(struct ethtool_coalesce));
+
+ switch (adapter->coal_conf->coalMode) {
+ case VMXNET3_COALESCE_DISABLED:
+ /* struct ethtool_coalesce is already initialized to 0 */
+ break;
+ case VMXNET3_COALESCE_ADAPT:
+ ec->use_adaptive_rx_coalesce = true;
+ break;
+ case VMXNET3_COALESCE_STATIC:
+ ec->tx_max_coalesced_frames =
+ adapter->coal_conf->coalPara.coalStatic.tx_comp_depth;
+ ec->rx_max_coalesced_frames =
+ adapter->coal_conf->coalPara.coalStatic.rx_depth;
+ break;
+ case VMXNET3_COALESCE_RBC: {
+ u32 rbc_rate;
+
+ rbc_rate = adapter->coal_conf->coalPara.coalRbc.rbc_rate;
+ ec->rx_coalesce_usecs = VMXNET3_COAL_RBC_USECS(rbc_rate);
+ }
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int
+vmxnet3_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
+{
+ struct vmxnet3_adapter *adapter = netdev_priv(netdev);
+ struct Vmxnet3_DriverShared *shared = adapter->shared;
+ union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo;
+ unsigned long flags;
+
+ if (!VMXNET3_VERSION_GE_3(adapter))
+ return -EOPNOTSUPP;
+
+ if (ec->rx_coalesce_usecs_irq ||
+ ec->rx_max_coalesced_frames_irq ||
+ ec->tx_coalesce_usecs ||
+ ec->tx_coalesce_usecs_irq ||
+ ec->tx_max_coalesced_frames_irq ||
+ ec->stats_block_coalesce_usecs ||
+ ec->use_adaptive_tx_coalesce ||
+ ec->pkt_rate_low ||
+ ec->rx_coalesce_usecs_low ||
+ ec->rx_max_coalesced_frames_low ||
+ ec->tx_coalesce_usecs_low ||
+ ec->tx_max_coalesced_frames_low ||
+ ec->pkt_rate_high ||
+ ec->rx_coalesce_usecs_high ||
+ ec->rx_max_coalesced_frames_high ||
+ ec->tx_coalesce_usecs_high ||
+ ec->tx_max_coalesced_frames_high ||
+ ec->rate_sample_interval) {
+ return -EINVAL;
+ }
+
+ if ((ec->rx_coalesce_usecs == 0) &&
+ (ec->use_adaptive_rx_coalesce == 0) &&
+ (ec->tx_max_coalesced_frames == 0) &&
+ (ec->rx_max_coalesced_frames == 0)) {
+ memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
+ adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED;
+ goto done;
+ }
+
+ if (ec->rx_coalesce_usecs != 0) {
+ u32 rbc_rate;
+
+ if ((ec->use_adaptive_rx_coalesce != 0) ||
+ (ec->tx_max_coalesced_frames != 0) ||
+ (ec->rx_max_coalesced_frames != 0)) {
+ return -EINVAL;
+ }
+
+ rbc_rate = VMXNET3_COAL_RBC_RATE(ec->rx_coalesce_usecs);
+ if (rbc_rate < VMXNET3_COAL_RBC_MIN_RATE ||
+ rbc_rate > VMXNET3_COAL_RBC_MAX_RATE) {
+ return -EINVAL;
+ }
+
+ memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
+ adapter->coal_conf->coalMode = VMXNET3_COALESCE_RBC;
+ adapter->coal_conf->coalPara.coalRbc.rbc_rate = rbc_rate;
+ goto done;
+ }
+
+ if (ec->use_adaptive_rx_coalesce != 0) {
+ if ((ec->rx_coalesce_usecs != 0) ||
+ (ec->tx_max_coalesced_frames != 0) ||
+ (ec->rx_max_coalesced_frames != 0)) {
+ return -EINVAL;
+ }
+ memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
+ adapter->coal_conf->coalMode = VMXNET3_COALESCE_ADAPT;
+ goto done;
+ }
+
+ if ((ec->tx_max_coalesced_frames != 0) ||
+ (ec->rx_max_coalesced_frames != 0)) {
+ if ((ec->rx_coalesce_usecs != 0) ||
+ (ec->use_adaptive_rx_coalesce != 0)) {
+ return -EINVAL;
+ }
+
+ if ((ec->tx_max_coalesced_frames >
+ VMXNET3_COAL_STATIC_MAX_DEPTH) ||
+ (ec->rx_max_coalesced_frames >
+ VMXNET3_COAL_STATIC_MAX_DEPTH)) {
+ return -EINVAL;
+ }
+
+ memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
+ adapter->coal_conf->coalMode = VMXNET3_COALESCE_STATIC;
+
+ adapter->coal_conf->coalPara.coalStatic.tx_comp_depth =
+ (ec->tx_max_coalesced_frames ?
+ ec->tx_max_coalesced_frames :
+ VMXNET3_COAL_STATIC_DEFAULT_DEPTH);
+
+ adapter->coal_conf->coalPara.coalStatic.rx_depth =
+ (ec->rx_max_coalesced_frames ?
+ ec->rx_max_coalesced_frames :
+ VMXNET3_COAL_STATIC_DEFAULT_DEPTH);
+
+ adapter->coal_conf->coalPara.coalStatic.tx_depth =
+ VMXNET3_COAL_STATIC_DEFAULT_DEPTH;
+ goto done;
+ }
+
+done:
+ adapter->default_coal_mode = false;
+ if (netif_running(netdev)) {
+ spin_lock_irqsave(&adapter->cmd_lock, flags);
+ cmdInfo->varConf.confVer = 1;
+ cmdInfo->varConf.confLen =
+ cpu_to_le32(sizeof(*adapter->coal_conf));
+ cmdInfo->varConf.confPA = cpu_to_le64(adapter->coal_conf_pa);
+ VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
+ VMXNET3_CMD_SET_COALESCE);
+ spin_unlock_irqrestore(&adapter->cmd_lock, flags);
+ }
+
+ return 0;
+}
+
static const struct ethtool_ops vmxnet3_ethtool_ops = {
.get_settings = vmxnet3_get_settings,
.get_drvinfo = vmxnet3_get_drvinfo,
@@ -733,6 +891,8 @@ static const struct ethtool_ops vmxnet3_ethtool_ops = {
.get_wol = vmxnet3_get_wol,
.set_wol = vmxnet3_set_wol,
.get_link = ethtool_op_get_link,
+ .get_coalesce = vmxnet3_get_coalesce,
+ .set_coalesce = vmxnet3_set_coalesce,
.get_strings = vmxnet3_get_strings,
.get_sset_count = vmxnet3_get_sset_count,
.get_ethtool_stats = vmxnet3_get_ethtool_stats,
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index c46bf09..63df4f2 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -358,6 +358,7 @@ struct vmxnet3_adapter {
int rx_buf_per_pkt; /* only apply to the 1st ring */
dma_addr_t shared_pa;
dma_addr_t queue_desc_pa;
+ dma_addr_t coal_conf_pa;
/* Wake-on-LAN */
u32 wol;
@@ -384,6 +385,9 @@ struct vmxnet3_adapter {
int share_intr;
+ struct Vmxnet3_CoalesceScheme *coal_conf;
+ bool default_coal_mode;
+
dma_addr_t adapter_pa;
dma_addr_t pm_conf_pa;
dma_addr_t rss_conf_pa;
@@ -429,6 +433,11 @@ struct vmxnet3_adapter {
(rqID >= 2 * adapter->num_rx_queues && \
rqID < 3 * adapter->num_rx_queues) \
+#define VMXNET3_COAL_STATIC_DEFAULT_DEPTH 64
+
+#define VMXNET3_COAL_RBC_RATE(usecs) (1000000 / usecs)
+#define VMXNET3_COAL_RBC_USECS(rbc_rate) (1000000 / rbc_rate)
+
int
vmxnet3_quiesce_dev(struct vmxnet3_adapter *adapter);
--
2.8.2
^ permalink raw reply related [flat|nested] 12+ messages in thread* Re: [PATCH net-next v3 5/7] vmxnet3: add support for get_coalesce, set_coalesce ethtool operations
2016-06-14 1:50 ` [PATCH net-next v3 5/7] vmxnet3: add support for get_coalesce, set_coalesce ethtool operations Shrikrishna Khare
@ 2016-06-14 15:04 ` Ben Hutchings
0 siblings, 0 replies; 12+ messages in thread
From: Ben Hutchings @ 2016-06-14 15:04 UTC (permalink / raw)
To: Shrikrishna Khare, netdev, linux-kernel, pv-drivers
Cc: Keyong Sun, Manoj Tammali
[-- Attachment #1: Type: text/plain, Size: 986 bytes --]
On Mon, 2016-06-13 at 18:50 -0700, Shrikrishna Khare wrote:
[...]
> --- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
> +++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
> @@ -725,6 +725,164 @@ vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
> }
> #endif
>
> +static int
> +vmxnet3_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
> +{
> + struct vmxnet3_adapter *adapter = netdev_priv(netdev);
> +
> + if (!VMXNET3_VERSION_GE_3(adapter))
> + return -EOPNOTSUPP;
> +
> + memset(ec, 0, sizeof(struct ethtool_coalesce));
[...]
The ethtool core already clears the structure, and it sets the cmd
field properly. This memset() should be removed.
Otherwise I think this is fine.
Ben.
--
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
- Albert
Camus
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH net-next v3 6/7] vmxnet3: introduce command to register memory region
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
` (4 preceding siblings ...)
2016-06-14 1:50 ` [PATCH net-next v3 5/7] vmxnet3: add support for get_coalesce, set_coalesce ethtool operations Shrikrishna Khare
@ 2016-06-14 1:50 ` Shrikrishna Khare
2016-06-14 5:54 ` Or Gerlitz
2016-06-14 1:50 ` [PATCH net-next v3 7/7] vmxnet3: update to version 3 Shrikrishna Khare
` (2 subsequent siblings)
8 siblings, 1 reply; 12+ messages in thread
From: Shrikrishna Khare @ 2016-06-14 1:50 UTC (permalink / raw)
To: netdev, linux-kernel, pv-drivers; +Cc: Shrikrishna Khare, Guolin Yang
Signed-off-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_defs.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index 274e145..c3a3164 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -81,6 +81,7 @@ enum {
VMXNET3_CMD_RESERVED2,
VMXNET3_CMD_RESERVED3,
VMXNET3_CMD_SET_COALESCE,
+ VMXNET3_CMD_REGISTER_MEMREGS,
VMXNET3_CMD_FIRST_GET = 0xF00D0000,
VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
@@ -668,6 +669,22 @@ struct Vmxnet3_CoalesceScheme {
} coalPara;
};
+struct Vmxnet3_MemoryRegion {
+ __le64 startPA;
+ __le32 length;
+ __le16 txQueueBits;
+ __le16 rxQueueBits;
+};
+
+#define MAX_MEMORY_REGION_PER_QUEUE 16
+#define MAX_MEMORY_REGION_PER_DEVICE 256
+
+struct Vmxnet3_MemRegs {
+ __le16 numRegs;
+ __le16 pad[3];
+ struct Vmxnet3_MemoryRegion memRegs[1];
+};
+
/* If the command data <= 16 bytes, use the shared memory directly.
* otherwise, use variable length configuration descriptor.
*/
--
2.8.2
^ permalink raw reply related [flat|nested] 12+ messages in thread* Re: [PATCH net-next v3 6/7] vmxnet3: introduce command to register memory region
2016-06-14 1:50 ` [PATCH net-next v3 6/7] vmxnet3: introduce command to register memory region Shrikrishna Khare
@ 2016-06-14 5:54 ` Or Gerlitz
0 siblings, 0 replies; 12+ messages in thread
From: Or Gerlitz @ 2016-06-14 5:54 UTC (permalink / raw)
To: Shrikrishna Khare
Cc: Linux Netdev List, Linux Kernel, pv-drivers, Guolin Yang
On Tue, Jun 14, 2016 at 4:50 AM, Shrikrishna Khare <skhare@vmware.com> wrote:
> +++ b/drivers/net/vmxnet3/vmxnet3_defs.h
> @@ -81,6 +81,7 @@ enum {
> VMXNET3_CMD_RESERVED2,
> VMXNET3_CMD_RESERVED3,
> VMXNET3_CMD_SET_COALESCE,
> + VMXNET3_CMD_REGISTER_MEMREGS,
>
> VMXNET3_CMD_FIRST_GET = 0xF00D0000,
> VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
> @@ -668,6 +669,22 @@ struct Vmxnet3_CoalesceScheme {
> } coalPara;
> };
>
> +struct Vmxnet3_MemoryRegion {
> + __le64 startPA;
> + __le32 length;
> + __le16 txQueueBits;
> + __le16 rxQueueBits;
> +};
What is the use case for this command?
What's the role of the tx/rx queue bits fields?
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH net-next v3 7/7] vmxnet3: update to version 3
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
` (5 preceding siblings ...)
2016-06-14 1:50 ` [PATCH net-next v3 6/7] vmxnet3: introduce command to register memory region Shrikrishna Khare
@ 2016-06-14 1:50 ` Shrikrishna Khare
2016-06-14 5:52 ` [PATCH net-next v3 0/7] vmxnet3: upgrade " Or Gerlitz
2016-06-15 7:23 ` David Miller
8 siblings, 0 replies; 12+ messages in thread
From: Shrikrishna Khare @ 2016-06-14 1:50 UTC (permalink / raw)
To: netdev, linux-kernel, pv-drivers; +Cc: Shrikrishna Khare
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_drv.c | 7 ++++++-
drivers/net/vmxnet3/vmxnet3_int.h | 4 ++--
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index d0bcc1d9..c68fe49 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -3345,7 +3345,12 @@ vmxnet3_probe_device(struct pci_dev *pdev,
goto err_alloc_pci;
ver = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
- if (ver & (1 << VMXNET3_REV_2)) {
+ if (ver & (1 << VMXNET3_REV_3)) {
+ VMXNET3_WRITE_BAR1_REG(adapter,
+ VMXNET3_REG_VRRS,
+ 1 << VMXNET3_REV_3);
+ adapter->version = VMXNET3_REV_3 + 1;
+ } else if (ver & (1 << VMXNET3_REV_2)) {
VMXNET3_WRITE_BAR1_REG(adapter,
VMXNET3_REG_VRRS,
1 << VMXNET3_REV_2);
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index 63df4f2..74fc030 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -69,10 +69,10 @@
/*
* Version numbers
*/
-#define VMXNET3_DRIVER_VERSION_STRING "1.4.8.0-k"
+#define VMXNET3_DRIVER_VERSION_STRING "1.4.9.0-k"
/* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */
-#define VMXNET3_DRIVER_VERSION_NUM 0x01040800
+#define VMXNET3_DRIVER_VERSION_NUM 0x01040900
#if defined(CONFIG_PCI_MSI)
/* RSS only makes sense if MSI-X is supported. */
--
2.8.2
^ permalink raw reply related [flat|nested] 12+ messages in thread* Re: [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
` (6 preceding siblings ...)
2016-06-14 1:50 ` [PATCH net-next v3 7/7] vmxnet3: update to version 3 Shrikrishna Khare
@ 2016-06-14 5:52 ` Or Gerlitz
2016-06-15 7:23 ` David Miller
8 siblings, 0 replies; 12+ messages in thread
From: Or Gerlitz @ 2016-06-14 5:52 UTC (permalink / raw)
To: Shrikrishna Khare; +Cc: Linux Netdev List, Linux Kernel, pv-drivers
On Tue, Jun 14, 2016 at 4:50 AM, Shrikrishna Khare <skhare@vmware.com> wrote:
> This patchset upgrades vmxnet3 to version 3.
Except for one patch, all the rest lack change-log, which makes it
somehow needlessly harder to review and maintain
> Shrikrishna Khare (7):
> vmxnet3: prepare for version 3 changes
> vmxnet3: introduce generic command interface to configure the device
> vmxnet3: allow variable length transmit data ring buffer
> vmxnet3: add receive data ring support
> vmxnet3: add support for get_coalesce, set_coalesce ethtool operations
> vmxnet3: introduce command to register memory region
> vmxnet3: update to version 3
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3
2016-06-14 1:50 [PATCH net-next v3 0/7] vmxnet3: upgrade to version 3 Shrikrishna Khare
` (7 preceding siblings ...)
2016-06-14 5:52 ` [PATCH net-next v3 0/7] vmxnet3: upgrade " Or Gerlitz
@ 2016-06-15 7:23 ` David Miller
8 siblings, 0 replies; 12+ messages in thread
From: David Miller @ 2016-06-15 7:23 UTC (permalink / raw)
To: skhare; +Cc: netdev, linux-kernel, pv-drivers
From: Shrikrishna Khare <skhare@vmware.com>
Date: Mon, 13 Jun 2016 18:50:00 -0700
> This patchset upgrades vmxnet3 to version 3.
As stated by others, it is completely unacceptable to post so many
patches with little or no commit log message.
You must describe, in full detail, what each and every patch does, why
it is doing so, and how it is doing it.
^ permalink raw reply [flat|nested] 12+ messages in thread