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Message-ID: <4AF19E6D.6010400@mellanox.co.il>
Date: Wed, 04 Nov 2009 17:31:57 +0200
From: Yevgeny Petrilin <yevgenyp@...lanox.co.il>
To: rdreier@...co.com
CC: linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
liranl@...lanox.co.il, tziporet@...lanox.co.il,
yevgenyp@...lanox.co.il
Subject: [PATCH 20/25] mlx4: Managing SET_PORT for En port for multi-func
MTU is set as max among all active functions.
The base QP number is the base QP number of the port.
Signed-off-by: Yevgeny Petrilin <yevgenyp@...lanox.co.il>
---
drivers/net/mlx4/mlx4.h | 2 +
drivers/net/mlx4/port.c | 56 ++++++++++++++++++++++++++++++++++++++++++---
include/linux/mlx4/cmd.h | 1 +
3 files changed, 55 insertions(+), 4 deletions(-)
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index 3e434e4..1213de6 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -221,6 +221,7 @@ struct mlx4_slave_state {
u8 last_cmd;
u8 init_port_mask;
dma_addr_t vhcr_dma;
+ u16 mtu[MLX4_MAX_PORTS + 1];
__be32 ib_cap_mask[MLX4_MAX_PORTS + 1];
struct mlx4_slave_eqe eq[MLX4_MFUNC_MAX_EQES];
u16 eq_pi;
@@ -232,6 +233,7 @@ struct mlx4_slave_state {
struct mlx4_mfunc_master_ctx {
struct mlx4_slave_state *slave_state;
int init_port_ref[MLX4_MAX_PORTS + 1];
+ u16 max_mtu[MLX4_MAX_PORTS + 1];
};
struct mlx4_vhcr {
diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c
index 6e729dd..02b56ba 100644
--- a/drivers/net/mlx4/port.c
+++ b/drivers/net/mlx4/port.c
@@ -36,6 +36,7 @@
#include <linux/mlx4/cmd.h>
#include "mlx4.h"
+#include "en_port.h"
#define MLX4_MAC_VALID (1ull << 63)
#define MLX4_MAC_MASK 0xffffffffffffULL
@@ -351,9 +352,17 @@ int mlx4_SET_PORT_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhc
struct mlx4_cmd_mailbox *outbox)
{
struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_port_info *port_info;
+ struct mlx4_mfunc_master_ctx *master = &priv->mfunc.master;
+ struct mlx4_slave_state *slave_st = &master->slave_state[slave];
+ struct mlx4_set_port_rqp_calc_context *qpn_context;
+ struct mlx4_set_port_general_context *gen_context;
int reset_qkey_viols;
int port;
int is_eth;
+ u32 in_modifier;
+ u32 promisc;
+ u16 mtu, prev_mtu;
int err;
int i;
__be32 agg_cap_mask;
@@ -361,13 +370,52 @@ int mlx4_SET_PORT_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhc
__be32 new_cap_mask;
port = vhcr->in_modifier & 0xff;
+ in_modifier = vhcr->in_modifier >> 8;
is_eth = vhcr->op_modifier;
+ port_info = &priv->port[port];
- /* For Ethernet, we currently support only slave0.
- * TODO: add multi-vf support */
+ /* All slaves can perform SET_PORT operations, just need to verify
+ * we keep the mutual resources unchanged */
if (is_eth) {
- if (slave)
- return -EINVAL;
+ switch (in_modifier) {
+ case MLX4_SET_PORT_RQP_CALC:
+ qpn_context = inbox->buf;
+ qpn_context->base_qpn = cpu_to_be32(port_info->base_qpn);
+ qpn_context->n_mac = 0x7;
+ promisc = be32_to_cpu(qpn_context->promisc) >>
+ SET_PORT_PROMISC_SHIFT;
+ qpn_context->promisc = cpu_to_be32(
+ promisc << SET_PORT_PROMISC_SHIFT |
+ port_info->base_qpn);
+ promisc = be32_to_cpu(qpn_context->mcast) >>
+ SET_PORT_PROMISC_SHIFT;
+ qpn_context->mcast = cpu_to_be32(
+ promisc << SET_PORT_PROMISC_SHIFT |
+ port_info->base_qpn);
+ break;
+ case MLX4_SET_PORT_GENERAL:
+ gen_context = inbox->buf;
+ /* Mtu is configured as the max MTU among all the
+ * the functions on the port. */
+ mtu = be16_to_cpu(gen_context->mtu);
+ mtu = max_t(int, mtu, dev->caps.eth_mtu_cap[port]);
+ prev_mtu = slave_st->mtu[port];
+ slave_st->mtu[port] = mtu;
+ if (mtu > master->max_mtu[port])
+ master->max_mtu[port] = mtu;
+ if (mtu < prev_mtu && prev_mtu == master->max_mtu[port]) {
+ slave_st->mtu[port] = mtu;
+ master->max_mtu[port] = mtu;
+ for (i = 0; i < dev->num_slaves; i++) {
+ master->max_mtu[port] =
+ max(master->max_mtu[port],
+ master->slave_state[i].mtu[port]);
+ }
+ }
+
+ gen_context->mtu = cpu_to_be16(master->max_mtu[port]);
+ break;
+ }
return mlx4_cmd(dev, inbox->dma, vhcr->in_modifier,
vhcr->op_modifier,
MLX4_CMD_SET_PORT,
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index f729c82..c0f2897 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -151,6 +151,7 @@ enum {
MLX4_SET_PORT_MAC_TABLE = 0x2,
MLX4_SET_PORT_VLAN_TABLE = 0x3,
MLX4_SET_PORT_PRIO_MAP = 0x4,
+ MLX4_SET_PORT_MODIFIERS
};
struct mlx4_dev;
--
1.6.1.3
--
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