[PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[Salil Mehta]

This patch-set introduces fix to some Bugs, potential problems
and code improvements identified during internal review and
testing of Hisilicon Network Subsystem driver.

Hi Doug,
These are few HNS patches which are not related to HNS RoCE driver but
are being sent through your repository hns-roce (as requested) to mitigate
any conflicts with HNS RoCE driver for the 4.9 merge window. In future
i.e. after 4.9 we will go by more formal git-pull request method once
HNS RoCE base driver becomes part of 4.9.


Daode Huang (6):
  net: hns: bug fix about setting coalsecs-usecs to 0
  net: hns: add fini_process for v2 napi process
  net: hns: delete repeat read fbd num after while
  net: hns: fix the bug of forwarding table
  net: hns: bug fix about broadcast/multicast packets
  net: hns: delete redundant broadcast packet filter process

Kejian Yan (1):
  net: hns: fix port not available after testing loopback

lipeng (1):
  net: hns: fix port unavailable after hnae_reserve_buffer_map fail

 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  |  11 ++-
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c  |  13 ++-
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h  |   2 +
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c |  10 --
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |   1 -
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c  |  16 ++++
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h  |   4 +
 drivers/net/ethernet/hisilicon/hns/hns_enet.c      | 106 ++++++++++++++-------
 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   |   7 ++
 9 files changed, 117 insertions(+), 53 deletions(-)

-- 
1.9.1


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[PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[Salil Mehta]

This patch-set introduces fix to some Bugs, potential problems
and code improvements identified during internal review and
testing of Hisilicon Network Subsystem driver.

Hi Doug,
These are few HNS patches which are not related to HNS RoCE driver but
are being sent through your repository hns-roce (as requested) to mitigate
any conflicts with HNS RoCE driver for the 4.9 merge window. In future
i.e. after 4.9 we will go by more formal git-pull request method once
HNS RoCE base driver becomes part of 4.9.


Daode Huang (6):
  net: hns: bug fix about setting coalsecs-usecs to 0
  net: hns: add fini_process for v2 napi process
  net: hns: delete repeat read fbd num after while
  net: hns: fix the bug of forwarding table
  net: hns: bug fix about broadcast/multicast packets
  net: hns: delete redundant broadcast packet filter process

Kejian Yan (1):
  net: hns: fix port not available after testing loopback

lipeng (1):
  net: hns: fix port unavailable after hnae_reserve_buffer_map fail

 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  |  11 ++-
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c  |  13 ++-
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h  |   2 +
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c |  10 --
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |   1 -
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c  |  16 ++++
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h  |   4 +
 drivers/net/ethernet/hisilicon/hns/hns_enet.c      | 106 ++++++++++++++-------
 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   |   7 ++
 9 files changed, 117 insertions(+), 53 deletions(-)

-- 
1.9.1

[PATCH for-next 1/8] net: hns: fix port unavailable after hnae_reserve_buffer_map fail

[Salil Mehta]

From: lipeng <lipeng321@huawei.com>

When hnae_reserve_buffer_map fail, it will break cycle and some
buffer description has no available memory, therefore the port will
be unavailable.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index d7e1f8c..32ff270 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -747,6 +747,14 @@ static void hns_nic_rx_up_pro(struct hns_nic_ring_data *ring_data,
 	ndev->last_rx = jiffies;
 }
 
+static int hns_desc_unused(struct hnae_ring *ring)
+{
+	int ntc = ring->next_to_clean;
+	int ntu = ring->next_to_use;
+
+	return ((ntc >= ntu) ? 0 : ring->desc_num) + ntc - ntu;
+}
+
 static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data,
 			       int budget, void *v)
 {
@@ -755,17 +763,21 @@ static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data,
 	int num, bnum, ex_num;
 #define RCB_NOF_ALLOC_RX_BUFF_ONCE 16
 	int recv_pkts, recv_bds, clean_count, err;
+	int unused_count = hns_desc_unused(ring);
 
 	num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
 	rmb(); /* make sure num taken effect before the other data is touched */
 
 	recv_pkts = 0, recv_bds = 0, clean_count = 0;
+	num -= unused_count;
 recv:
 	while (recv_pkts < budget && recv_bds < num) {
 		/* reuse or realloc buffers */
-		if (clean_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) {
-			hns_nic_alloc_rx_buffers(ring_data, clean_count);
+		if (clean_count + unused_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) {
+			hns_nic_alloc_rx_buffers(ring_data,
+						 clean_count + unused_count);
 			clean_count = 0;
+			unused_count = hns_desc_unused(ring);
 		}
 
 		/* poll one pkt */
@@ -789,7 +801,7 @@ recv:
 	/* make all data has been write before submit */
 	if (recv_pkts < budget) {
 		ex_num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
-
+		ex_num -= unused_count;
 		if (ex_num > clean_count) {
 			num += ex_num - clean_count;
 			rmb(); /*complete read rx ring bd number*/
@@ -799,8 +811,9 @@ recv:
 
 out:
 	/* make all data has been write before submit */
-	if (clean_count > 0)
-		hns_nic_alloc_rx_buffers(ring_data, clean_count);
+	if (clean_count + unused_count > 0)
+		hns_nic_alloc_rx_buffers(ring_data,
+					 clean_count + unused_count);
 
 	return recv_pkts;
 }
-- 
1.9.1

[PATCH for-next 1/8] net: hns: fix port unavailable after hnae_reserve_buffer_map fail

[Salil Mehta]

From: lipeng <lipeng321@huawei.com>

When hnae_reserve_buffer_map fail, it will break cycle and some
buffer description has no available memory, therefore the port will
be unavailable.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index d7e1f8c..32ff270 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -747,6 +747,14 @@ static void hns_nic_rx_up_pro(struct hns_nic_ring_data *ring_data,
 	ndev->last_rx = jiffies;
 }
 
+static int hns_desc_unused(struct hnae_ring *ring)
+{
+	int ntc = ring->next_to_clean;
+	int ntu = ring->next_to_use;
+
+	return ((ntc >= ntu) ? 0 : ring->desc_num) + ntc - ntu;
+}
+
 static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data,
 			       int budget, void *v)
 {
@@ -755,17 +763,21 @@ static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data,
 	int num, bnum, ex_num;
 #define RCB_NOF_ALLOC_RX_BUFF_ONCE 16
 	int recv_pkts, recv_bds, clean_count, err;
+	int unused_count = hns_desc_unused(ring);
 
 	num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
 	rmb(); /* make sure num taken effect before the other data is touched */
 
 	recv_pkts = 0, recv_bds = 0, clean_count = 0;
+	num -= unused_count;
 recv:
 	while (recv_pkts < budget && recv_bds < num) {
 		/* reuse or realloc buffers */
-		if (clean_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) {
-			hns_nic_alloc_rx_buffers(ring_data, clean_count);
+		if (clean_count + unused_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) {
+			hns_nic_alloc_rx_buffers(ring_data,
+						 clean_count + unused_count);
 			clean_count = 0;
+			unused_count = hns_desc_unused(ring);
 		}
 
 		/* poll one pkt */
@@ -789,7 +801,7 @@ recv:
 	/* make all data has been write before submit */
 	if (recv_pkts < budget) {
 		ex_num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
-
+		ex_num -= unused_count;
 		if (ex_num > clean_count) {
 			num += ex_num - clean_count;
 			rmb(); /*complete read rx ring bd number*/
@@ -799,8 +811,9 @@ recv:
 
 out:
 	/* make all data has been write before submit */
-	if (clean_count > 0)
-		hns_nic_alloc_rx_buffers(ring_data, clean_count);
+	if (clean_count + unused_count > 0)
+		hns_nic_alloc_rx_buffers(ring_data,
+					 clean_count + unused_count);
 
 	return recv_pkts;
 }
-- 
1.9.1

[PATCH for-next 2/8] net: hns: bug fix about setting coalsecs-usecs to 0

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

When set rx/tx coalesce usecs to 0, the interrupt coalesce will be
disabled, but there is a interrupt rate limit which set to 1us, it
will cause no interrupt occurs. This patch disable interrupt limit
when sets coalsecs usecs to 0, and restores it to 1 in other case.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c | 16 ++++++++++++++++
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
index ef11077..f0ed80d6 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -543,6 +543,22 @@ int hns_rcb_set_coalesce_usecs(
 			"error: coalesce_usecs setting supports 0~1023us\n");
 		return -EINVAL;
 	}
+
+	if (!AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
+		if (timeout == 0)
+			/* set timeout to 0, Disable gap time */
+			dsaf_set_reg_field(rcb_common->io_base,
+					   RCB_INT_GAP_TIME_REG + port_idx * 4,
+					   PPE_INT_GAPTIME_M, PPE_INT_GAPTIME_B,
+					   0);
+		else
+			/* set timeout non 0, restore gap time to 1 */
+			dsaf_set_reg_field(rcb_common->io_base,
+					   RCB_INT_GAP_TIME_REG + port_idx * 4,
+					   PPE_INT_GAPTIME_M, PPE_INT_GAPTIME_B,
+					   1);
+	}
+
 	hns_rcb_set_port_timeout(rcb_common, port_idx, timeout);
 	return 0;
 }
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
index 4b8b803..878950a 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
@@ -417,6 +417,7 @@
 #define RCB_CFG_OVERTIME_REG			0x9300
 #define RCB_CFG_PKTLINE_INT_NUM_REG		0x9304
 #define RCB_CFG_OVERTIME_INT_NUM_REG		0x9308
+#define RCB_INT_GAP_TIME_REG			0x9400
 #define RCB_PORT_CFG_OVERTIME_REG		0x9430
 
 #define RCB_RING_RX_RING_BASEADDR_L_REG		0x00000
@@ -898,6 +899,9 @@
 #define PPE_CNT_CLR_CE_B	0
 #define PPE_CNT_CLR_SNAP_EN_B	1
 
+#define PPE_INT_GAPTIME_B	0
+#define PPE_INT_GAPTIME_M	0x3ff
+
 #define PPE_COMMON_CNT_CLR_CE_B	0
 #define PPE_COMMON_CNT_CLR_SNAP_EN_B	1
 #define RCB_COM_TSO_MODE_B	0
-- 
1.9.1

[PATCH for-next 2/8] net: hns: bug fix about setting coalsecs-usecs to 0

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

When set rx/tx coalesce usecs to 0, the interrupt coalesce will be
disabled, but there is a interrupt rate limit which set to 1us, it
will cause no interrupt occurs. This patch disable interrupt limit
when sets coalsecs usecs to 0, and restores it to 1 in other case.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c | 16 ++++++++++++++++
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
index ef11077..f0ed80d6 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -543,6 +543,22 @@ int hns_rcb_set_coalesce_usecs(
 			"error: coalesce_usecs setting supports 0~1023us\n");
 		return -EINVAL;
 	}
+
+	if (!AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
+		if (timeout == 0)
+			/* set timeout to 0, Disable gap time */
+			dsaf_set_reg_field(rcb_common->io_base,
+					   RCB_INT_GAP_TIME_REG + port_idx * 4,
+					   PPE_INT_GAPTIME_M, PPE_INT_GAPTIME_B,
+					   0);
+		else
+			/* set timeout non 0, restore gap time to 1 */
+			dsaf_set_reg_field(rcb_common->io_base,
+					   RCB_INT_GAP_TIME_REG + port_idx * 4,
+					   PPE_INT_GAPTIME_M, PPE_INT_GAPTIME_B,
+					   1);
+	}
+
 	hns_rcb_set_port_timeout(rcb_common, port_idx, timeout);
 	return 0;
 }
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
index 4b8b803..878950a 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
@@ -417,6 +417,7 @@
 #define RCB_CFG_OVERTIME_REG			0x9300
 #define RCB_CFG_PKTLINE_INT_NUM_REG		0x9304
 #define RCB_CFG_OVERTIME_INT_NUM_REG		0x9308
+#define RCB_INT_GAP_TIME_REG			0x9400
 #define RCB_PORT_CFG_OVERTIME_REG		0x9430
 
 #define RCB_RING_RX_RING_BASEADDR_L_REG		0x00000
@@ -898,6 +899,9 @@
 #define PPE_CNT_CLR_CE_B	0
 #define PPE_CNT_CLR_SNAP_EN_B	1
 
+#define PPE_INT_GAPTIME_B	0
+#define PPE_INT_GAPTIME_M	0x3ff
+
 #define PPE_COMMON_CNT_CLR_CE_B	0
 #define PPE_COMMON_CNT_CLR_SNAP_EN_B	1
 #define RCB_COM_TSO_MODE_B	0
-- 
1.9.1

[PATCH for-next 3/8] net: hns: add fini_process for v2 napi process

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

This patch adds fini_process for v2, it handles the packets recevied
by the hardware in the napi porcess. With this patch, the hardware irq
numbers will drop 50% per sec.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 45 ++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 32ff270..e6bfc51 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -823,6 +823,8 @@ static void hns_nic_rx_fini_pro(struct hns_nic_ring_data *ring_data)
 	struct hnae_ring *ring = ring_data->ring;
 	int num = 0;
 
+	ring_data->ring->q->handle->dev->ops->toggle_ring_irq(ring, 0);
+
 	/* for hardware bug fixed */
 	num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
 
@@ -834,6 +836,20 @@ static void hns_nic_rx_fini_pro(struct hns_nic_ring_data *ring_data)
 	}
 }
 
+static void hns_nic_rx_fini_pro_v2(struct hns_nic_ring_data *ring_data)
+{
+	struct hnae_ring *ring = ring_data->ring;
+	int num = 0;
+
+	num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
+
+	if (num == 0)
+		ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
+			ring, 0);
+	else
+		napi_schedule(&ring_data->napi);
+}
+
 static inline void hns_nic_reclaim_one_desc(struct hnae_ring *ring,
 					    int *bytes, int *pkts)
 {
@@ -935,7 +951,11 @@ static int hns_nic_tx_poll_one(struct hns_nic_ring_data *ring_data,
 static void hns_nic_tx_fini_pro(struct hns_nic_ring_data *ring_data)
 {
 	struct hnae_ring *ring = ring_data->ring;
-	int head = readl_relaxed(ring->io_base + RCB_REG_HEAD);
+	int head;
+
+	ring_data->ring->q->handle->dev->ops->toggle_ring_irq(ring, 0);
+
+	head = readl_relaxed(ring->io_base + RCB_REG_HEAD);
 
 	if (head != ring->next_to_clean) {
 		ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
@@ -945,6 +965,18 @@ static void hns_nic_tx_fini_pro(struct hns_nic_ring_data *ring_data)
 	}
 }
 
+static void hns_nic_tx_fini_pro_v2(struct hns_nic_ring_data *ring_data)
+{
+	struct hnae_ring *ring = ring_data->ring;
+	int head = readl_relaxed(ring->io_base + RCB_REG_HEAD);
+
+	if (head == ring->next_to_clean)
+		ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
+			ring, 0);
+	else
+		napi_schedule(&ring_data->napi);
+}
+
 static void hns_nic_tx_clr_all_bufs(struct hns_nic_ring_data *ring_data)
 {
 	struct hnae_ring *ring = ring_data->ring;
@@ -976,10 +1008,7 @@ static int hns_nic_common_poll(struct napi_struct *napi, int budget)
 
 	if (clean_complete >= 0 && clean_complete < budget) {
 		napi_complete(napi);
-		ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
-			ring_data->ring, 0);
-		if (ring_data->fini_process)
-			ring_data->fini_process(ring_data);
+		ring_data->fini_process(ring_data);
 		return 0;
 	}
 
@@ -1755,7 +1784,8 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
 		rd->queue_index = i;
 		rd->ring = &h->qs[i]->tx_ring;
 		rd->poll_one = hns_nic_tx_poll_one;
-		rd->fini_process = is_ver1 ? hns_nic_tx_fini_pro : NULL;
+		rd->fini_process = is_ver1 ? hns_nic_tx_fini_pro :
+			hns_nic_tx_fini_pro_v2;
 
 		netif_napi_add(priv->netdev, &rd->napi,
 			       hns_nic_common_poll, NIC_TX_CLEAN_MAX_NUM);
@@ -1767,7 +1797,8 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
 		rd->ring = &h->qs[i - h->q_num]->rx_ring;
 		rd->poll_one = hns_nic_rx_poll_one;
 		rd->ex_process = hns_nic_rx_up_pro;
-		rd->fini_process = is_ver1 ? hns_nic_rx_fini_pro : NULL;
+		rd->fini_process = is_ver1 ? hns_nic_rx_fini_pro :
+			hns_nic_rx_fini_pro_v2;
 
 		netif_napi_add(priv->netdev, &rd->napi,
 			       hns_nic_common_poll, NIC_RX_CLEAN_MAX_NUM);
-- 
1.9.1

[PATCH for-next 3/8] net: hns: add fini_process for v2 napi process

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

This patch adds fini_process for v2, it handles the packets recevied
by the hardware in the napi porcess. With this patch, the hardware irq
numbers will drop 50% per sec.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 45 ++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 32ff270..e6bfc51 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -823,6 +823,8 @@ static void hns_nic_rx_fini_pro(struct hns_nic_ring_data *ring_data)
 	struct hnae_ring *ring = ring_data->ring;
 	int num = 0;
 
+	ring_data->ring->q->handle->dev->ops->toggle_ring_irq(ring, 0);
+
 	/* for hardware bug fixed */
 	num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
 
@@ -834,6 +836,20 @@ static void hns_nic_rx_fini_pro(struct hns_nic_ring_data *ring_data)
 	}
 }
 
+static void hns_nic_rx_fini_pro_v2(struct hns_nic_ring_data *ring_data)
+{
+	struct hnae_ring *ring = ring_data->ring;
+	int num = 0;
+
+	num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
+
+	if (num == 0)
+		ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
+			ring, 0);
+	else
+		napi_schedule(&ring_data->napi);
+}
+
 static inline void hns_nic_reclaim_one_desc(struct hnae_ring *ring,
 					    int *bytes, int *pkts)
 {
@@ -935,7 +951,11 @@ static int hns_nic_tx_poll_one(struct hns_nic_ring_data *ring_data,
 static void hns_nic_tx_fini_pro(struct hns_nic_ring_data *ring_data)
 {
 	struct hnae_ring *ring = ring_data->ring;
-	int head = readl_relaxed(ring->io_base + RCB_REG_HEAD);
+	int head;
+
+	ring_data->ring->q->handle->dev->ops->toggle_ring_irq(ring, 0);
+
+	head = readl_relaxed(ring->io_base + RCB_REG_HEAD);
 
 	if (head != ring->next_to_clean) {
 		ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
@@ -945,6 +965,18 @@ static void hns_nic_tx_fini_pro(struct hns_nic_ring_data *ring_data)
 	}
 }
 
+static void hns_nic_tx_fini_pro_v2(struct hns_nic_ring_data *ring_data)
+{
+	struct hnae_ring *ring = ring_data->ring;
+	int head = readl_relaxed(ring->io_base + RCB_REG_HEAD);
+
+	if (head == ring->next_to_clean)
+		ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
+			ring, 0);
+	else
+		napi_schedule(&ring_data->napi);
+}
+
 static void hns_nic_tx_clr_all_bufs(struct hns_nic_ring_data *ring_data)
 {
 	struct hnae_ring *ring = ring_data->ring;
@@ -976,10 +1008,7 @@ static int hns_nic_common_poll(struct napi_struct *napi, int budget)
 
 	if (clean_complete >= 0 && clean_complete < budget) {
 		napi_complete(napi);
-		ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
-			ring_data->ring, 0);
-		if (ring_data->fini_process)
-			ring_data->fini_process(ring_data);
+		ring_data->fini_process(ring_data);
 		return 0;
 	}
 
@@ -1755,7 +1784,8 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
 		rd->queue_index = i;
 		rd->ring = &h->qs[i]->tx_ring;
 		rd->poll_one = hns_nic_tx_poll_one;
-		rd->fini_process = is_ver1 ? hns_nic_tx_fini_pro : NULL;
+		rd->fini_process = is_ver1 ? hns_nic_tx_fini_pro :
+			hns_nic_tx_fini_pro_v2;
 
 		netif_napi_add(priv->netdev, &rd->napi,
 			       hns_nic_common_poll, NIC_TX_CLEAN_MAX_NUM);
@@ -1767,7 +1797,8 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
 		rd->ring = &h->qs[i - h->q_num]->rx_ring;
 		rd->poll_one = hns_nic_rx_poll_one;
 		rd->ex_process = hns_nic_rx_up_pro;
-		rd->fini_process = is_ver1 ? hns_nic_rx_fini_pro : NULL;
+		rd->fini_process = is_ver1 ? hns_nic_rx_fini_pro :
+			hns_nic_rx_fini_pro_v2;
 
 		netif_napi_add(priv->netdev, &rd->napi,
 			       hns_nic_common_poll, NIC_RX_CLEAN_MAX_NUM);
-- 
1.9.1

[PATCH for-next 4/8] net: hns: delete repeat read fbd num after while

[Salil Mehta]

From: Daode Huang <huangdaode-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>

Because we handle the received packets after napi, so delete the checking
before submitting. It delete the code of read the fbd number register,
which reduces the cpu usages while receiving packets

Signed-off-by: Daode Huang <huangdaode-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>
Reviewed-by: Yisen Zhuang <yisen.zhuang-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Signed-off-by: Salil Mehta <salil.mehta-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index e6bfc51..09ed237 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -760,7 +760,7 @@ static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data,
 {
 	struct hnae_ring *ring = ring_data->ring;
 	struct sk_buff *skb;
-	int num, bnum, ex_num;
+	int num, bnum;
 #define RCB_NOF_ALLOC_RX_BUFF_ONCE 16
 	int recv_pkts, recv_bds, clean_count, err;
 	int unused_count = hns_desc_unused(ring);
@@ -770,7 +770,7 @@ static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data,
 
 	recv_pkts = 0, recv_bds = 0, clean_count = 0;
 	num -= unused_count;
-recv:
+
 	while (recv_pkts < budget && recv_bds < num) {
 		/* reuse or realloc buffers */
 		if (clean_count + unused_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) {
@@ -798,17 +798,6 @@ recv:
 		recv_pkts++;
 	}
 
-	/* make all data has been write before submit */
-	if (recv_pkts < budget) {
-		ex_num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
-		ex_num -= unused_count;
-		if (ex_num > clean_count) {
-			num += ex_num - clean_count;
-			rmb(); /*complete read rx ring bd number*/
-			goto recv;
-		}
-	}
-
 out:
 	/* make all data has been write before submit */
 	if (clean_count + unused_count > 0)
-- 
1.9.1


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[PATCH for-next 4/8] net: hns: delete repeat read fbd num after while

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

Because we handle the received packets after napi, so delete the checking
before submitting. It delete the code of read the fbd number register,
which reduces the cpu usages while receiving packets

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index e6bfc51..09ed237 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -760,7 +760,7 @@ static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data,
 {
 	struct hnae_ring *ring = ring_data->ring;
 	struct sk_buff *skb;
-	int num, bnum, ex_num;
+	int num, bnum;
 #define RCB_NOF_ALLOC_RX_BUFF_ONCE 16
 	int recv_pkts, recv_bds, clean_count, err;
 	int unused_count = hns_desc_unused(ring);
@@ -770,7 +770,7 @@ static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data,
 
 	recv_pkts = 0, recv_bds = 0, clean_count = 0;
 	num -= unused_count;
-recv:
+
 	while (recv_pkts < budget && recv_bds < num) {
 		/* reuse or realloc buffers */
 		if (clean_count + unused_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) {
@@ -798,17 +798,6 @@ recv:
 		recv_pkts++;
 	}
 
-	/* make all data has been write before submit */
-	if (recv_pkts < budget) {
-		ex_num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM);
-		ex_num -= unused_count;
-		if (ex_num > clean_count) {
-			num += ex_num - clean_count;
-			rmb(); /*complete read rx ring bd number*/
-			goto recv;
-		}
-	}
-
 out:
 	/* make all data has been write before submit */
 	if (clean_count + unused_count > 0)
-- 
1.9.1

[PATCH for-next 5/8] net: hns: fix port not available after testing loopback

[Salil Mehta]

From: Kejian Yan <yankejian@huawei.com>

After running command "ethtool -t eth0", eth0 can not be connected to
network. It is caused by the changing the inner loopback register and
this register cannot be changed when hns connected to network. The
routine of setting this register needs to be removed and using promisc
mode to let the packet looped back pass by dsaf mode.

Reported-by: Jun He <hjat2005@huawei.com>
Signed-off-by: Kejian Yan <yankejian@huawei.com>
Reviewed-by: Yisen Zhaung <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  |  3 ---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 10 ----------
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |  1 -
 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   |  7 +++++++
 4 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index e28d960..e0f9cdc 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -678,9 +678,6 @@ static int hns_ae_config_loopback(struct hnae_handle *handle,
 		ret = -EINVAL;
 	}
 
-	if (!ret)
-		hns_dsaf_set_inner_lb(mac_cb->dsaf_dev, mac_cb->mac_id, en);
-
 	return ret;
 }
 
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index 9283bc6..827d8fb 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -768,16 +768,6 @@ void hns_dsaf_set_promisc_mode(struct dsaf_device *dsaf_dev, u32 en)
 				 DSAF_CFG_MIX_MODE_S, !!en);
 }
 
-void hns_dsaf_set_inner_lb(struct dsaf_device *dsaf_dev, u32 mac_id, u32 en)
-{
-	if (AE_IS_VER1(dsaf_dev->dsaf_ver) ||
-	    dsaf_dev->mac_cb[mac_id]->mac_type == HNAE_PORT_DEBUG)
-		return;
-
-	dsaf_set_dev_bit(dsaf_dev, DSAFV2_SERDES_LBK_0_REG + 4 * mac_id,
-			 DSAFV2_SERDES_LBK_EN_B, !!en);
-}
-
 /**
  * hns_dsaf_tbl_stat_en - tbl
  * @dsaf_id: dsa fabric id
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
index 35df187..c494fc5 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
@@ -466,6 +466,5 @@ void hns_dsaf_get_rx_mac_pause_en(struct dsaf_device *dsaf_dev, int mac_id,
 				  u32 *en);
 int hns_dsaf_set_rx_mac_pause_en(struct dsaf_device *dsaf_dev, int mac_id,
 				 u32 en);
-void hns_dsaf_set_inner_lb(struct dsaf_device *dsaf_dev, u32 mac_id, u32 en);
 
 #endif /* __HNS_DSAF_MAIN_H__ */
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index ab33487..fa91ce3 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -342,6 +342,13 @@ static int __lb_setup(struct net_device *ndev,
 		break;
 	}
 
+	if (!ret) {
+		if (loop == MAC_LOOP_NONE)
+			h->dev->ops->set_promisc_mode(
+				h, ndev->flags & IFF_PROMISC);
+		else
+			h->dev->ops->set_promisc_mode(h, 1);
+	}
 	return ret;
 }
 
-- 
1.9.1

[PATCH for-next 5/8] net: hns: fix port not available after testing loopback

[Salil Mehta]

From: Kejian Yan <yankejian@huawei.com>

After running command "ethtool -t eth0", eth0 can not be connected to
network. It is caused by the changing the inner loopback register and
this register cannot be changed when hns connected to network. The
routine of setting this register needs to be removed and using promisc
mode to let the packet looped back pass by dsaf mode.

Reported-by: Jun He <hjat2005@huawei.com>
Signed-off-by: Kejian Yan <yankejian@huawei.com>
Reviewed-by: Yisen Zhaung <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  |  3 ---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 10 ----------
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |  1 -
 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   |  7 +++++++
 4 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index e28d960..e0f9cdc 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -678,9 +678,6 @@ static int hns_ae_config_loopback(struct hnae_handle *handle,
 		ret = -EINVAL;
 	}
 
-	if (!ret)
-		hns_dsaf_set_inner_lb(mac_cb->dsaf_dev, mac_cb->mac_id, en);
-
 	return ret;
 }
 
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index 9283bc6..827d8fb 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -768,16 +768,6 @@ void hns_dsaf_set_promisc_mode(struct dsaf_device *dsaf_dev, u32 en)
 				 DSAF_CFG_MIX_MODE_S, !!en);
 }
 
-void hns_dsaf_set_inner_lb(struct dsaf_device *dsaf_dev, u32 mac_id, u32 en)
-{
-	if (AE_IS_VER1(dsaf_dev->dsaf_ver) ||
-	    dsaf_dev->mac_cb[mac_id]->mac_type == HNAE_PORT_DEBUG)
-		return;
-
-	dsaf_set_dev_bit(dsaf_dev, DSAFV2_SERDES_LBK_0_REG + 4 * mac_id,
-			 DSAFV2_SERDES_LBK_EN_B, !!en);
-}
-
 /**
  * hns_dsaf_tbl_stat_en - tbl
  * @dsaf_id: dsa fabric id
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
index 35df187..c494fc5 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
@@ -466,6 +466,5 @@ void hns_dsaf_get_rx_mac_pause_en(struct dsaf_device *dsaf_dev, int mac_id,
 				  u32 *en);
 int hns_dsaf_set_rx_mac_pause_en(struct dsaf_device *dsaf_dev, int mac_id,
 				 u32 en);
-void hns_dsaf_set_inner_lb(struct dsaf_device *dsaf_dev, u32 mac_id, u32 en);
 
 #endif /* __HNS_DSAF_MAIN_H__ */
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index ab33487..fa91ce3 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -342,6 +342,13 @@ static int __lb_setup(struct net_device *ndev,
 		break;
 	}
 
+	if (!ret) {
+		if (loop == MAC_LOOP_NONE)
+			h->dev->ops->set_promisc_mode(
+				h, ndev->flags & IFF_PROMISC);
+		else
+			h->dev->ops->set_promisc_mode(h, 1);
+	}
 	return ret;
 }
 
-- 
1.9.1

[PATCH for-next 6/8] net: hns: fix the bug of forwarding table

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

As the sub queue id in the broadcast forwarding table is always
set to absolute queue 0 rather than the interface's relative queue 0,
this will cause the received broadcast packets loopback to rcb.
This patch sets the sub queue id to relative queue 0 of each port.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c |  8 ++++++--
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 13 ++++++++++---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h |  2 ++
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index e0f9cdc..2d0cb60 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -207,6 +207,7 @@ static int hns_ae_set_multicast_one(struct hnae_handle *handle, void *addr)
 	int ret;
 	char *mac_addr = (char *)addr;
 	struct hns_mac_cb *mac_cb = hns_get_mac_cb(handle);
+	u8 port_num;
 
 	assert(mac_cb);
 
@@ -221,8 +222,11 @@ static int hns_ae_set_multicast_one(struct hnae_handle *handle, void *addr)
 		return ret;
 	}
 
-	ret = hns_mac_set_multi(mac_cb, DSAF_BASE_INNER_PORT_NUM,
-				mac_addr, true);
+	ret = hns_mac_get_inner_port_num(mac_cb, handle->vf_id, &port_num);
+	if (ret)
+		return ret;
+
+	ret = hns_mac_set_multi(mac_cb, port_num, mac_addr, true);
 	if (ret)
 		dev_err(handle->owner_dev,
 			"mac add mul_mac:%pM port%d  fail, ret = %#x!\n",
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index a68eef0..5313ed6 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -141,10 +141,11 @@ void hns_mac_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex)
  *@port_num:port number
  *
  */
-static int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
-				      u8 vmid, u8 *port_num)
+int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb, u8 vmid, u8 *port_num)
 {
 	u8 tmp_port;
+	int vm_queue_id;
+	int q_num_per_vf, vf_num_per_port;
 
 	if (mac_cb->dsaf_dev->dsaf_mode <= DSAF_MODE_ENABLE) {
 		if (mac_cb->mac_id != DSAF_MAX_PORT_NUM) {
@@ -174,6 +175,12 @@ static int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
 		return -EINVAL;
 	}
 
+	q_num_per_vf = mac_cb->dsaf_dev->rcb_common[0]->max_q_per_vf;
+	vf_num_per_port = mac_cb->dsaf_dev->rcb_common[0]->max_vfn;
+
+	vm_queue_id = vmid * q_num_per_vf +
+			vf_num_per_port * q_num_per_vf * mac_cb->mac_id;
+
 	switch (mac_cb->dsaf_dev->dsaf_mode) {
 	case DSAF_MODE_ENABLE_FIX:
 		tmp_port = 0;
@@ -193,7 +200,7 @@ static int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
 	case DSAF_MODE_DISABLE_6PORT_2VM:
 	case DSAF_MODE_DISABLE_6PORT_4VM:
 	case DSAF_MODE_DISABLE_6PORT_16VM:
-		tmp_port = vmid;
+		tmp_port = vm_queue_id;
 		break;
 	default:
 		dev_err(mac_cb->dev, "dsaf mode invalid,%s mac%d!\n",
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
index 4cbdf14..d3a1f72 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
@@ -461,5 +461,7 @@ void hns_set_led_opt(struct hns_mac_cb *mac_cb);
 int hns_cpld_led_set_id(struct hns_mac_cb *mac_cb,
 			enum hnae_led_state status);
 void hns_mac_set_promisc(struct hns_mac_cb *mac_cb, u8 en);
+int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
+			       u8 vmid, u8 *port_num);
 
 #endif /* _HNS_DSAF_MAC_H */
-- 
1.9.1

[PATCH for-next 6/8] net: hns: fix the bug of forwarding table

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

As the sub queue id in the broadcast forwarding table is always
set to absolute queue 0 rather than the interface's relative queue 0,
this will cause the received broadcast packets loopback to rcb.
This patch sets the sub queue id to relative queue 0 of each port.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c |  8 ++++++--
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 13 ++++++++++---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h |  2 ++
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index e0f9cdc..2d0cb60 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -207,6 +207,7 @@ static int hns_ae_set_multicast_one(struct hnae_handle *handle, void *addr)
 	int ret;
 	char *mac_addr = (char *)addr;
 	struct hns_mac_cb *mac_cb = hns_get_mac_cb(handle);
+	u8 port_num;
 
 	assert(mac_cb);
 
@@ -221,8 +222,11 @@ static int hns_ae_set_multicast_one(struct hnae_handle *handle, void *addr)
 		return ret;
 	}
 
-	ret = hns_mac_set_multi(mac_cb, DSAF_BASE_INNER_PORT_NUM,
-				mac_addr, true);
+	ret = hns_mac_get_inner_port_num(mac_cb, handle->vf_id, &port_num);
+	if (ret)
+		return ret;
+
+	ret = hns_mac_set_multi(mac_cb, port_num, mac_addr, true);
 	if (ret)
 		dev_err(handle->owner_dev,
 			"mac add mul_mac:%pM port%d  fail, ret = %#x!\n",
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index a68eef0..5313ed6 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -141,10 +141,11 @@ void hns_mac_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex)
  *@port_num:port number
  *
  */
-static int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
-				      u8 vmid, u8 *port_num)
+int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb, u8 vmid, u8 *port_num)
 {
 	u8 tmp_port;
+	int vm_queue_id;
+	int q_num_per_vf, vf_num_per_port;
 
 	if (mac_cb->dsaf_dev->dsaf_mode <= DSAF_MODE_ENABLE) {
 		if (mac_cb->mac_id != DSAF_MAX_PORT_NUM) {
@@ -174,6 +175,12 @@ static int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
 		return -EINVAL;
 	}
 
+	q_num_per_vf = mac_cb->dsaf_dev->rcb_common[0]->max_q_per_vf;
+	vf_num_per_port = mac_cb->dsaf_dev->rcb_common[0]->max_vfn;
+
+	vm_queue_id = vmid * q_num_per_vf +
+			vf_num_per_port * q_num_per_vf * mac_cb->mac_id;
+
 	switch (mac_cb->dsaf_dev->dsaf_mode) {
 	case DSAF_MODE_ENABLE_FIX:
 		tmp_port = 0;
@@ -193,7 +200,7 @@ static int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
 	case DSAF_MODE_DISABLE_6PORT_2VM:
 	case DSAF_MODE_DISABLE_6PORT_4VM:
 	case DSAF_MODE_DISABLE_6PORT_16VM:
-		tmp_port = vmid;
+		tmp_port = vm_queue_id;
 		break;
 	default:
 		dev_err(mac_cb->dev, "dsaf mode invalid,%s mac%d!\n",
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
index 4cbdf14..d3a1f72 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
@@ -461,5 +461,7 @@ void hns_set_led_opt(struct hns_mac_cb *mac_cb);
 int hns_cpld_led_set_id(struct hns_mac_cb *mac_cb,
 			enum hnae_led_state status);
 void hns_mac_set_promisc(struct hns_mac_cb *mac_cb, u8 en);
+int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
+			       u8 vmid, u8 *port_num);
 
 #endif /* _HNS_DSAF_MAC_H */
-- 
1.9.1

[PATCH for-next 7/8] net: hns: bug fix about broadcast/multicast packets

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

When the dsaf mode receives a broadcast packet, it will filter
the packet by comparing the received queue number and destination
queue number(get from forwarding table), if they are the same,
the packet will be filtered. Otherwise, the packet will be loopback.
So this patch select queue 0 to send broadcast and multicast packets.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 09ed237..4105df8 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -1597,6 +1597,20 @@ struct rtnl_link_stats64 *hns_nic_get_stats64(struct net_device *ndev,
 	return stats;
 }
 
+static u16
+hns_nic_select_queue(struct net_device *ndev, struct sk_buff *skb,
+		     void *accel_priv, select_queue_fallback_t fallback)
+{
+	struct hns_nic_priv *priv = netdev_priv(ndev);
+	struct ethhdr *eth_hdr = (struct ethhdr *)skb->data;
+
+	/*fix hardware broadcast/multicast packets queue loopback */
+	if (!AE_IS_VER1(priv->enet_ver) &&
+	    is_multicast_ether_addr(eth_hdr->h_dest))
+		return 0;
+	else
+		return fallback(ndev, skb);
+}
 static const struct net_device_ops hns_nic_netdev_ops = {
 	.ndo_open = hns_nic_net_open,
 	.ndo_stop = hns_nic_net_stop,
@@ -1612,6 +1626,7 @@ static const struct net_device_ops hns_nic_netdev_ops = {
 	.ndo_poll_controller = hns_nic_poll_controller,
 #endif
 	.ndo_set_rx_mode = hns_nic_set_rx_mode,
+	.ndo_select_queue = hns_nic_select_queue,
 };
 
 static void hns_nic_update_link_status(struct net_device *netdev)
-- 
1.9.1

[PATCH for-next 7/8] net: hns: bug fix about broadcast/multicast packets

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

When the dsaf mode receives a broadcast packet, it will filter
the packet by comparing the received queue number and destination
queue number(get from forwarding table), if they are the same,
the packet will be filtered. Otherwise, the packet will be loopback.
So this patch select queue 0 to send broadcast and multicast packets.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 09ed237..4105df8 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -1597,6 +1597,20 @@ struct rtnl_link_stats64 *hns_nic_get_stats64(struct net_device *ndev,
 	return stats;
 }
 
+static u16
+hns_nic_select_queue(struct net_device *ndev, struct sk_buff *skb,
+		     void *accel_priv, select_queue_fallback_t fallback)
+{
+	struct hns_nic_priv *priv = netdev_priv(ndev);
+	struct ethhdr *eth_hdr = (struct ethhdr *)skb->data;
+
+	/*fix hardware broadcast/multicast packets queue loopback */
+	if (!AE_IS_VER1(priv->enet_ver) &&
+	    is_multicast_ether_addr(eth_hdr->h_dest))
+		return 0;
+	else
+		return fallback(ndev, skb);
+}
 static const struct net_device_ops hns_nic_netdev_ops = {
 	.ndo_open = hns_nic_net_open,
 	.ndo_stop = hns_nic_net_stop,
@@ -1612,6 +1626,7 @@ static const struct net_device_ops hns_nic_netdev_ops = {
 	.ndo_poll_controller = hns_nic_poll_controller,
 #endif
 	.ndo_set_rx_mode = hns_nic_set_rx_mode,
+	.ndo_select_queue = hns_nic_select_queue,
 };
 
 static void hns_nic_update_link_status(struct net_device *netdev)
-- 
1.9.1

[PATCH for-next 8/8] net: hns: delete redundant broadcast packet filter process

[Salil Mehta]

From: Daode Huang <huangdaode-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>

The broadcast packets is filtered in the hardware now, so this process
is no need in the driver, just delete it.

Signed-off-by: Daode Huang <huangdaode-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>
Reviewed-by: Yisen Zhuang <yisen.zhuang-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Signed-off-by: Salil Mehta <salil.mehta-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 4105df8..d56dfca 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -574,7 +574,6 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data,
 	struct sk_buff *skb;
 	struct hnae_desc *desc;
 	struct hnae_desc_cb *desc_cb;
-	struct ethhdr *eh;
 	unsigned char *va;
 	int bnum, length, i;
 	int pull_len;
@@ -600,7 +599,6 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data,
 		ring->stats.sw_err_cnt++;
 		return -ENOMEM;
 	}
-	skb_reset_mac_header(skb);
 
 	prefetchw(skb->data);
 	length = le16_to_cpu(desc->rx.pkt_len);
@@ -682,14 +680,6 @@ out_bnum_err:
 		return -EFAULT;
 	}
 
-	/* filter out multicast pkt with the same src mac as this port */
-	eh = eth_hdr(skb);
-	if (unlikely(is_multicast_ether_addr(eh->h_dest) &&
-		     ether_addr_equal(ndev->dev_addr, eh->h_source))) {
-		dev_kfree_skb_any(skb);
-		return -EFAULT;
-	}
-
 	ring->stats.rx_pkts++;
 	ring->stats.rx_bytes += skb->len;
 
-- 
1.9.1


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[PATCH for-next 8/8] net: hns: delete redundant broadcast packet filter process

[Salil Mehta]

From: Daode Huang <huangdaode@hisilicon.com>

The broadcast packets is filtered in the hardware now, so this process
is no need in the driver, just delete it.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 4105df8..d56dfca 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -574,7 +574,6 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data,
 	struct sk_buff *skb;
 	struct hnae_desc *desc;
 	struct hnae_desc_cb *desc_cb;
-	struct ethhdr *eh;
 	unsigned char *va;
 	int bnum, length, i;
 	int pull_len;
@@ -600,7 +599,6 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data,
 		ring->stats.sw_err_cnt++;
 		return -ENOMEM;
 	}
-	skb_reset_mac_header(skb);
 
 	prefetchw(skb->data);
 	length = le16_to_cpu(desc->rx.pkt_len);
@@ -682,14 +680,6 @@ out_bnum_err:
 		return -EFAULT;
 	}
 
-	/* filter out multicast pkt with the same src mac as this port */
-	eh = eth_hdr(skb);
-	if (unlikely(is_multicast_ether_addr(eh->h_dest) &&
-		     ether_addr_equal(ndev->dev_addr, eh->h_source))) {
-		dev_kfree_skb_any(skb);
-		return -EFAULT;
-	}
-
 	ring->stats.rx_pkts++;
 	ring->stats.rx_bytes += skb->len;
 
-- 
1.9.1

Re: [PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[Doug Ledford]

[-- Attachment #1.1: Type: text/plain, Size: 3155 bytes --]

On 9/10/16 12:09 AM, Salil Mehta wrote:
> This patch-set introduces fix to some Bugs, potential problems
> and code improvements identified during internal review and
> testing of Hisilicon Network Subsystem driver.
> 
> Hi Doug,
> These are few HNS patches which are not related to HNS RoCE driver but
> are being sent through your repository hns-roce (as requested) to mitigate
> any conflicts with HNS RoCE driver for the 4.9 merge window. In future
> i.e. after 4.9 we will go by more formal git-pull request method once
> HNS RoCE base driver becomes part of 4.9.

Hi Salil,

I've chatted with Dave Miller about this series.  Here's where we stand.

First, the review feedback from Dave:

---

In patch #7, their comments are mis-formatted and these
hns guys do this a lot.

	/*fix hardware broadcast/multicast packets queue loopback */

They seem to have a hard time putting an initial space in the comment,
and properly capitalizing and punctuating their sentences.

Also in that new function, they need to order local variables from
longest to shortest line (reverse christmas tree format).

Patch #6 has the local variable ordering issue as well as does patch
#3.

---

Please address those issues and resubmit.

As for the method of resubmission, please send the set to netdev@ and
also linux-rdma@, make note that, as a one off thing, these will need to
go through my tree to avoid conflicts with patches already in my tree,
and that future submissions will follow the Mellanox model of submitting
shared code to both mine and David's tree that is needed to avoid
conflicts for that merge window's submissions.  After the netdev people
have reviewed it, and Dave acks it, either he can pick it up and sort
the conflicts out, or I can pick it up.

> 
> Daode Huang (6):
>   net: hns: bug fix about setting coalsecs-usecs to 0
>   net: hns: add fini_process for v2 napi process
>   net: hns: delete repeat read fbd num after while
>   net: hns: fix the bug of forwarding table
>   net: hns: bug fix about broadcast/multicast packets
>   net: hns: delete redundant broadcast packet filter process
> 
> Kejian Yan (1):
>   net: hns: fix port not available after testing loopback
> 
> lipeng (1):
>   net: hns: fix port unavailable after hnae_reserve_buffer_map fail
> 
>  drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  |  11 ++-
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c  |  13 ++-
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h  |   2 +
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c |  10 --
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |   1 -
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c  |  16 ++++
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h  |   4 +
>  drivers/net/ethernet/hisilicon/hns/hns_enet.c      | 106 ++++++++++++++-------
>  drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   |   7 ++
>  9 files changed, 117 insertions(+), 53 deletions(-)
> 


-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>    GPG Key ID: 0E572FDD
  Red Hat, Inc.
  100 E. Davie St
  Raleigh, NC 27601 USA


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 907 bytes --]

Re: [PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[Doug Ledford]

[-- Attachment #1.1: Type: text/plain, Size: 3126 bytes --]

On 9/10/16 12:09 AM, Salil Mehta wrote:
> This patch-set introduces fix to some Bugs, potential problems
> and code improvements identified during internal review and
> testing of Hisilicon Network Subsystem driver.
> 
> Hi Doug,
> These are few HNS patches which are not related to HNS RoCE driver but
> are being sent through your repository hns-roce (as requested) to mitigate
> any conflicts with HNS RoCE driver for the 4.9 merge window. In future
> i.e. after 4.9 we will go by more formal git-pull request method once
> HNS RoCE base driver becomes part of 4.9.

Hi Salil,

I've chatted with Dave Miller about this series.  Here's where we stand.

First, the review feedback from Dave:

---

In patch #7, their comments are mis-formatted and these
hns guys do this a lot.

	/*fix hardware broadcast/multicast packets queue loopback */

They seem to have a hard time putting an initial space in the comment,
and properly capitalizing and punctuating their sentences.

Also in that new function, they need to order local variables from
longest to shortest line (reverse christmas tree format).

Patch #6 has the local variable ordering issue as well as does patch
#3.

---

Please address those issues and resubmit.

As for the method of resubmission, please send the set to netdev@ and
also linux-rdma@, make note that, as a one off thing, these will need to
go through my tree to avoid conflicts with patches already in my tree,
and that future submissions will follow the Mellanox model of submitting
shared code to both mine and David's tree that is needed to avoid
conflicts for that merge window's submissions.  After the netdev people
have reviewed it, and Dave acks it, either he can pick it up and sort
the conflicts out, or I can pick it up.

> 
> Daode Huang (6):
>   net: hns: bug fix about setting coalsecs-usecs to 0
>   net: hns: add fini_process for v2 napi process
>   net: hns: delete repeat read fbd num after while
>   net: hns: fix the bug of forwarding table
>   net: hns: bug fix about broadcast/multicast packets
>   net: hns: delete redundant broadcast packet filter process
> 
> Kejian Yan (1):
>   net: hns: fix port not available after testing loopback
> 
> lipeng (1):
>   net: hns: fix port unavailable after hnae_reserve_buffer_map fail
> 
>  drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  |  11 ++-
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c  |  13 ++-
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h  |   2 +
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c |  10 --
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |   1 -
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c  |  16 ++++
>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h  |   4 +
>  drivers/net/ethernet/hisilicon/hns/hns_enet.c      | 106 ++++++++++++++-------
>  drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   |   7 ++
>  9 files changed, 117 insertions(+), 53 deletions(-)
> 


-- 
Doug Ledford <dledford@redhat.com>    GPG Key ID: 0E572FDD
  Red Hat, Inc.
  100 E. Davie St
  Raleigh, NC 27601 USA


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 907 bytes --]

RE: [PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[Salil Mehta]

> -----Original Message-----
> From: Doug Ledford [mailto:dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org]
> Sent: Wednesday, September 28, 2016 3:57 PM
> To: Salil Mehta
> Cc: Huwei (Xavier); oulijun; Zhuangyuzeng (Yisen);
> mehta.salil.lnk-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org; linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux-
> kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; Linuxarm
> Subject: Re: [PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS
> driver
> 
> On 9/10/16 12:09 AM, Salil Mehta wrote:
> > This patch-set introduces fix to some Bugs, potential problems
> > and code improvements identified during internal review and
> > testing of Hisilicon Network Subsystem driver.
> >
> > Hi Doug,
> > These are few HNS patches which are not related to HNS RoCE driver
> but
> > are being sent through your repository hns-roce (as requested) to
> mitigate
> > any conflicts with HNS RoCE driver for the 4.9 merge window. In
> future
> > i.e. after 4.9 we will go by more formal git-pull request method once
> > HNS RoCE base driver becomes part of 4.9.
> 
> Hi Salil,
> 
> I've chatted with Dave Miller about this series.  Here's where we
> stand.
> 
> First, the review feedback from Dave:
> 
> ---
> 
> In patch #7, their comments are mis-formatted and these
> hns guys do this a lot.
> 
> 	/*fix hardware broadcast/multicast packets queue loopback */
> 
> They seem to have a hard time putting an initial space in the comment,
> and properly capitalizing and punctuating their sentences.
> 
> Also in that new function, they need to order local variables from
> longest to shortest line (reverse christmas tree format).
> 
> Patch #6 has the local variable ordering issue as well as does patch
> #3.
> 
> ---
> 
> Please address those issues and resubmit.
Hi Doug,
Thanks for the feedback. Point noted. I will address the mentioned issues,
discuss internally as well and revert with fixed patches.

Best regards
Salil
> 
> As for the method of resubmission, please send the set to netdev@ and
> also linux-rdma@, make note that, as a one off thing, these will need
> to
> go through my tree to avoid conflicts with patches already in my tree,
> and that future submissions will follow the Mellanox model of
> submitting
> shared code to both mine and David's tree that is needed to avoid
> conflicts for that merge window's submissions.  After the netdev people
> have reviewed it, and Dave acks it, either he can pick it up and sort
> the conflicts out, or I can pick it up.
Sure, got it. Will resubmit to netdev & linux-rdma this time and as
discussed would go by the Mellanox model of submission (git-pull) for
future such submit.

Thanks
Salil
> 
> >
> > Daode Huang (6):
> >   net: hns: bug fix about setting coalsecs-usecs to 0
> >   net: hns: add fini_process for v2 napi process
> >   net: hns: delete repeat read fbd num after while
> >   net: hns: fix the bug of forwarding table
> >   net: hns: bug fix about broadcast/multicast packets
> >   net: hns: delete redundant broadcast packet filter process
> >
> > Kejian Yan (1):
> >   net: hns: fix port not available after testing loopback
> >
> > lipeng (1):
> >   net: hns: fix port unavailable after hnae_reserve_buffer_map fail
> >
> >  drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  |  11 ++-
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c  |  13 ++-
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h  |   2 +
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c |  10 --
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |   1 -
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c  |  16 ++++
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h  |   4 +
> >  drivers/net/ethernet/hisilicon/hns/hns_enet.c      | 106
> ++++++++++++++-------
> >  drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   |   7 ++
> >  9 files changed, 117 insertions(+), 53 deletions(-)
> >
> 
> 
> --
> Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>    GPG Key ID: 0E572FDD
>   Red Hat, Inc.
>   100 E. Davie St
>   Raleigh, NC 27601 USA

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RE: [PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[Salil Mehta]

> -----Original Message-----
> From: Doug Ledford [mailto:dledford@redhat.com]
> Sent: Wednesday, September 28, 2016 3:57 PM
> To: Salil Mehta
> Cc: Huwei (Xavier); oulijun; Zhuangyuzeng (Yisen);
> mehta.salil.lnk@gmail.com; linux-rdma@vger.kernel.org; linux-
> kernel@vger.kernel.org; Linuxarm
> Subject: Re: [PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS
> driver
> 
> On 9/10/16 12:09 AM, Salil Mehta wrote:
> > This patch-set introduces fix to some Bugs, potential problems
> > and code improvements identified during internal review and
> > testing of Hisilicon Network Subsystem driver.
> >
> > Hi Doug,
> > These are few HNS patches which are not related to HNS RoCE driver
> but
> > are being sent through your repository hns-roce (as requested) to
> mitigate
> > any conflicts with HNS RoCE driver for the 4.9 merge window. In
> future
> > i.e. after 4.9 we will go by more formal git-pull request method once
> > HNS RoCE base driver becomes part of 4.9.
> 
> Hi Salil,
> 
> I've chatted with Dave Miller about this series.  Here's where we
> stand.
> 
> First, the review feedback from Dave:
> 
> ---
> 
> In patch #7, their comments are mis-formatted and these
> hns guys do this a lot.
> 
> 	/*fix hardware broadcast/multicast packets queue loopback */
> 
> They seem to have a hard time putting an initial space in the comment,
> and properly capitalizing and punctuating their sentences.
> 
> Also in that new function, they need to order local variables from
> longest to shortest line (reverse christmas tree format).
> 
> Patch #6 has the local variable ordering issue as well as does patch
> #3.
> 
> ---
> 
> Please address those issues and resubmit.
Hi Doug,
Thanks for the feedback. Point noted. I will address the mentioned issues,
discuss internally as well and revert with fixed patches.

Best regards
Salil
> 
> As for the method of resubmission, please send the set to netdev@ and
> also linux-rdma@, make note that, as a one off thing, these will need
> to
> go through my tree to avoid conflicts with patches already in my tree,
> and that future submissions will follow the Mellanox model of
> submitting
> shared code to both mine and David's tree that is needed to avoid
> conflicts for that merge window's submissions.  After the netdev people
> have reviewed it, and Dave acks it, either he can pick it up and sort
> the conflicts out, or I can pick it up.
Sure, got it. Will resubmit to netdev & linux-rdma this time and as
discussed would go by the Mellanox model of submission (git-pull) for
future such submit.

Thanks
Salil
> 
> >
> > Daode Huang (6):
> >   net: hns: bug fix about setting coalsecs-usecs to 0
> >   net: hns: add fini_process for v2 napi process
> >   net: hns: delete repeat read fbd num after while
> >   net: hns: fix the bug of forwarding table
> >   net: hns: bug fix about broadcast/multicast packets
> >   net: hns: delete redundant broadcast packet filter process
> >
> > Kejian Yan (1):
> >   net: hns: fix port not available after testing loopback
> >
> > lipeng (1):
> >   net: hns: fix port unavailable after hnae_reserve_buffer_map fail
> >
> >  drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  |  11 ++-
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c  |  13 ++-
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h  |   2 +
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c |  10 --
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |   1 -
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c  |  16 ++++
> >  drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h  |   4 +
> >  drivers/net/ethernet/hisilicon/hns/hns_enet.c      | 106
> ++++++++++++++-------
> >  drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   |   7 ++
> >  9 files changed, 117 insertions(+), 53 deletions(-)
> >
> 
> 
> --
> Doug Ledford <dledford@redhat.com>    GPG Key ID: 0E572FDD
>   Red Hat, Inc.
>   100 E. Davie St
>   Raleigh, NC 27601 USA

RE: [PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[Salil Mehta]

> Hi Salil,
> 
> I've chatted with Dave Miller about this series.  Here's where we
> stand.
> 
> First, the review feedback from Dave:
> 
> ---
> 
> In patch #7, their comments are mis-formatted and these
> hns guys do this a lot.
> 
> 	/*fix hardware broadcast/multicast packets queue loopback */
> 
> They seem to have a hard time putting an initial space in the comment,
> and properly capitalizing and punctuating their sentences.
> 
> Also in that new function, they need to order local variables from
> longest to shortest line (reverse christmas tree format).
> 
> Patch #6 has the local variable ordering issue as well as does patch
> #3.

Hi Doug,
I have refloated PATCH V2 with reworked 6/8 and 7/8 patches.

I scanned [PATCH V1 3/8] but could not find any ordering issue amongst
local variables there. I hope I have not missed anything.

Best regards
Salil
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RE: [PATCH for-next 0/8] Bug Fixes and Code Improvement in HNS driver

[Salil Mehta]

> Hi Salil,
> 
> I've chatted with Dave Miller about this series.  Here's where we
> stand.
> 
> First, the review feedback from Dave:
> 
> ---
> 
> In patch #7, their comments are mis-formatted and these
> hns guys do this a lot.
> 
> 	/*fix hardware broadcast/multicast packets queue loopback */
> 
> They seem to have a hard time putting an initial space in the comment,
> and properly capitalizing and punctuating their sentences.
> 
> Also in that new function, they need to order local variables from
> longest to shortest line (reverse christmas tree format).
> 
> Patch #6 has the local variable ordering issue as well as does patch
> #3.

Hi Doug,
I have refloated PATCH V2 with reworked 6/8 and 7/8 patches.

I scanned [PATCH V1 3/8] but could not find any ordering issue amongst
local variables there. I hope I have not missed anything.

Best regards
Salil