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[PATCH] ehea: IBM eHEA Ethernet Device Driver

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Hi Jeff,

I fixed the __iomem issue and tested the driver with sparse. Looks good so far.
Thanks for your effort.

Jan-Bernd Themann

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>

 drivers/net/Kconfig             |    9
 drivers/net/Makefile            |    1
 drivers/net/ehea/Makefile       |    6
 drivers/net/ehea/ehea.h         |  447 ++++++
 drivers/net/ehea/ehea_ethtool.c |  294 ++++
 drivers/net/ehea/ehea_hcall.h   |   51
 drivers/net/ehea/ehea_hw.h      |  287 ++++
 drivers/net/ehea/ehea_main.c    | 2654 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/ehea/ehea_phyp.c    |  705 ++++++++++
 drivers/net/ehea/ehea_phyp.h    |  455 ++++++
 drivers/net/ehea/ehea_qmr.c     |  582 ++++++++
 drivers/net/ehea/ehea_qmr.h     |  358 +++++
 12 files changed, 5849 insertions(+)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Jan-Bernd Themann 2006-09-13 17:44:31 +02:00 committed by Jeff Garzik
parent 7de745e562
commit 7a29108322
12 changed files with 5849 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/Kconfig
View File

@ -2360,6 +2360,15 @@ config CHELSIO_T1
To compile this driver as a module, choose M here: the module
will be called cxgb.
config EHEA
tristate "eHEA Ethernet support"
depends on IBMEBUS
---help---
This driver supports the IBM pSeries eHEA ethernet adapter.
To compile the driver as a module, choose M here. The module
will be called ehea.
config IXGB
tristate "Intel(R) PRO/10GbE support"
depends on PCI

1
drivers/net/Makefile
View File

@ -6,6 +6,7 @@ obj-$(CONFIG_E1000) += e1000/
obj-$(CONFIG_IBM_EMAC) += ibm_emac/
obj-$(CONFIG_IXGB) += ixgb/
obj-$(CONFIG_CHELSIO_T1) += chelsio/
obj-$(CONFIG_EHEA) += ehea/
obj-$(CONFIG_BONDING) += bonding/
obj-$(CONFIG_GIANFAR) += gianfar_driver.o

6
drivers/net/ehea/Makefile Normal file
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@ -0,0 +1,6 @@
#
# Makefile for the eHEA ethernet device driver for IBM eServer System p
#
ehea-y = ehea_main.o ehea_phyp.o ehea_qmr.o ehea_ethtool.o ehea_phyp.o
obj-$(CONFIG_EHEA) += ehea.o

447
drivers/net/ehea/ehea.h Normal file
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@ -0,0 +1,447 @@
/*
* linux/drivers/net/ehea/ehea.h
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*
*
* 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 Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __EHEA_H__
#define __EHEA_H__
#include <linux/module.h>
#include <linux/ethtool.h>
#include <linux/vmalloc.h>
#include <linux/if_vlan.h>
#include <asm/ibmebus.h>
#include <asm/abs_addr.h>
#include <asm/io.h>
#define DRV_NAME "ehea"
#define DRV_VERSION "EHEA_0027"
#define EHEA_MSG_DEFAULT (NETIF_MSG_LINK | NETIF_MSG_TIMER \
| NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
#define EHEA_MAX_ENTRIES_RQ1 32767
#define EHEA_MAX_ENTRIES_RQ2 16383
#define EHEA_MAX_ENTRIES_RQ3 16383
#define EHEA_MAX_ENTRIES_SQ 32767
#define EHEA_MIN_ENTRIES_QP 127
#define EHEA_NUM_TX_QP 1
#ifdef EHEA_SMALL_QUEUES
#define EHEA_MAX_CQE_COUNT 1023
#define EHEA_DEF_ENTRIES_SQ 1023
#define EHEA_DEF_ENTRIES_RQ1 4095
#define EHEA_DEF_ENTRIES_RQ2 1023
#define EHEA_DEF_ENTRIES_RQ3 1023
#else
#define EHEA_MAX_CQE_COUNT 32000
#define EHEA_DEF_ENTRIES_SQ 16000
#define EHEA_DEF_ENTRIES_RQ1 32080
#define EHEA_DEF_ENTRIES_RQ2 4020
#define EHEA_DEF_ENTRIES_RQ3 4020
#endif
#define EHEA_MAX_ENTRIES_EQ 20
#define EHEA_SG_SQ 2
#define EHEA_SG_RQ1 1
#define EHEA_SG_RQ2 0
#define EHEA_SG_RQ3 0
#define EHEA_MAX_PACKET_SIZE 9022 /* for jumbo frames */
#define EHEA_RQ2_PKT_SIZE 1522
#define EHEA_L_PKT_SIZE 256 /* low latency */
#define EHEA_POLL_MAX_RWQE 1000
/* Send completion signaling */
#define EHEA_SIG_IV_LONG 1
/* Protection Domain Identifier */
#define EHEA_PD_ID 0xaabcdeff
#define EHEA_RQ2_THRESHOLD 1
#define EHEA_RQ3_THRESHOLD 9 /* use RQ3 threshold of 1522 bytes */
#define EHEA_SPEED_10G 10000
#define EHEA_SPEED_1G 1000
#define EHEA_SPEED_100M 100
#define EHEA_SPEED_10M 10
#define EHEA_SPEED_AUTONEG 0
/* Broadcast/Multicast registration types */
#define EHEA_BCMC_SCOPE_ALL 0x08
#define EHEA_BCMC_SCOPE_SINGLE 0x00
#define EHEA_BCMC_MULTICAST 0x04
#define EHEA_BCMC_BROADCAST 0x00
#define EHEA_BCMC_UNTAGGED 0x02
#define EHEA_BCMC_TAGGED 0x00
#define EHEA_BCMC_VLANID_ALL 0x01
#define EHEA_BCMC_VLANID_SINGLE 0x00
/* Use this define to kmallocate pHYP control blocks */
#define H_CB_ALIGNMENT 4096
#define EHEA_CACHE_LINE 128
/* Memory Regions */
#define EHEA_MR_MAX_TX_PAGES 20
#define EHEA_MR_TX_DATA_PN 3
#define EHEA_MR_ACC_CTRL 0x00800000
#define EHEA_RWQES_PER_MR_RQ2 10
#define EHEA_RWQES_PER_MR_RQ3 10
#define EHEA_WATCH_DOG_TIMEOUT 10*HZ
/* utility functions */
#define ehea_info(fmt, args...) \
printk(KERN_INFO DRV_NAME ": " fmt "\n", ## args)
#define ehea_error(fmt, args...) \
printk(KERN_ERR DRV_NAME ": Error in %s: " fmt "\n", __func__, ## args)
#ifdef DEBUG
#define ehea_debug(fmt, args...) \
printk(KERN_DEBUG DRV_NAME ": " fmt, ## args)
#else
#define ehea_debug(fmt, args...) do {} while (0)
#endif
void ehea_dump(void *adr, int len, char *msg);
#define EHEA_BMASK(pos, length) (((pos) << 16) + (length))
#define EHEA_BMASK_IBM(from, to) (((63 - to) << 16) + ((to) - (from) + 1))
#define EHEA_BMASK_SHIFTPOS(mask) (((mask) >> 16) & 0xffff)
#define EHEA_BMASK_MASK(mask) \
(0xffffffffffffffffULL >> ((64 - (mask)) & 0xffff))
#define EHEA_BMASK_SET(mask, value) \
((EHEA_BMASK_MASK(mask) & ((u64)(value))) << EHEA_BMASK_SHIFTPOS(mask))
#define EHEA_BMASK_GET(mask, value) \
(EHEA_BMASK_MASK(mask) & (((u64)(value)) >> EHEA_BMASK_SHIFTPOS(mask)))
/*
* Generic ehea page
*/
struct ehea_page {
u8 entries[PAGE_SIZE];
};
/*
* Generic queue in linux kernel virtual memory
*/
struct hw_queue {
u64 current_q_offset; /* current queue entry */
struct ehea_page **queue_pages; /* array of pages belonging to queue */
u32 qe_size; /* queue entry size */
u32 queue_length; /* queue length allocated in bytes */
u32 pagesize;
u32 toggle_state; /* toggle flag - per page */
u32 reserved; /* 64 bit alignment */
};
/*
* For pSeries this is a 64bit memory address where
* I/O memory is mapped into CPU address space
*/
struct h_epa {
void __iomem *addr;
};
struct h_epa_user {
u64 addr;
};
struct h_epas {
struct h_epa kernel; /* kernel space accessible resource,
set to 0 if unused */
struct h_epa_user user; /* user space accessible resource
set to 0 if unused */
};
struct ehea_qp;
struct ehea_cq;
struct ehea_eq;
struct ehea_port;
struct ehea_av;
/*
* Queue attributes passed to ehea_create_qp()
*/
struct ehea_qp_init_attr {
/* input parameter */
u32 qp_token; /* queue token */
u8 low_lat_rq1;
u8 signalingtype; /* cqe generation flag */
u8 rq_count; /* num of receive queues */
u8 eqe_gen; /* eqe generation flag */
u16 max_nr_send_wqes; /* max number of send wqes */
u16 max_nr_rwqes_rq1; /* max number of receive wqes */
u16 max_nr_rwqes_rq2;
u16 max_nr_rwqes_rq3;
u8 wqe_size_enc_sq;
u8 wqe_size_enc_rq1;
u8 wqe_size_enc_rq2;
u8 wqe_size_enc_rq3;
u8 swqe_imm_data_len; /* immediate data length for swqes */
u16 port_nr;
u16 rq2_threshold;
u16 rq3_threshold;
u64 send_cq_handle;
u64 recv_cq_handle;
u64 aff_eq_handle;
/* output parameter */
u32 qp_nr;
u16 act_nr_send_wqes;
u16 act_nr_rwqes_rq1;
u16 act_nr_rwqes_rq2;
u16 act_nr_rwqes_rq3;
u8 act_wqe_size_enc_sq;
u8 act_wqe_size_enc_rq1;
u8 act_wqe_size_enc_rq2;
u8 act_wqe_size_enc_rq3;
u32 nr_sq_pages;
u32 nr_rq1_pages;
u32 nr_rq2_pages;
u32 nr_rq3_pages;
u32 liobn_sq;
u32 liobn_rq1;
u32 liobn_rq2;
u32 liobn_rq3;
};
/*
* Event Queue attributes, passed as paramter
*/
struct ehea_eq_attr {
u32 type;
u32 max_nr_of_eqes;
u8 eqe_gen; /* generate eqe flag */
u64 eq_handle;
u32 act_nr_of_eqes;
u32 nr_pages;
u32 ist1; /* Interrupt service token */
u32 ist2;
u32 ist3;
u32 ist4;
};
/*
* Event Queue
*/
struct ehea_eq {
struct ehea_adapter *adapter;
struct hw_queue hw_queue;
u64 fw_handle;
struct h_epas epas;
spinlock_t spinlock;
struct ehea_eq_attr attr;
};
/*
* HEA Queues
*/
struct ehea_qp {
struct ehea_adapter *adapter;
u64 fw_handle; /* QP handle for firmware calls */
struct hw_queue hw_squeue;
struct hw_queue hw_rqueue1;
struct hw_queue hw_rqueue2;
struct hw_queue hw_rqueue3;
struct h_epas epas;
struct ehea_qp_init_attr init_attr;
};
/*
* Completion Queue attributes
*/
struct ehea_cq_attr {
/* input parameter */
u32 max_nr_of_cqes;
u32 cq_token;
u64 eq_handle;
/* output parameter */
u32 act_nr_of_cqes;
u32 nr_pages;
};
/*
* Completion Queue
*/
struct ehea_cq {
struct ehea_adapter *adapter;
u64 fw_handle;
struct hw_queue hw_queue;
struct h_epas epas;
struct ehea_cq_attr attr;
};
/*
* Memory Region
*/
struct ehea_mr {
u64 handle;
u64 vaddr;
u32 lkey;
};
/*
* Port state information
*/
struct port_state {
int poll_max_processed;
int poll_receive_errors;
int ehea_poll;
int queue_stopped;
int min_swqe_avail;
u64 sqc_stop_sum;
int pkt_send;
int pkt_xmit;
int send_tasklet;
int nwqe;
};
#define EHEA_IRQ_NAME_SIZE 20
/*
* Queue SKB Array
*/
struct ehea_q_skb_arr {
struct sk_buff **arr; /* skb array for queue */
int len; /* array length */
int index; /* array index */
int os_skbs; /* rq2/rq3 only: outstanding skbs */
};
/*
* Port resources
*/
struct ehea_port_res {
struct ehea_mr send_mr; /* send memory region */
struct ehea_mr recv_mr; /* receive memory region */
spinlock_t xmit_lock;
struct ehea_port *port;
char int_recv_name[EHEA_IRQ_NAME_SIZE];
char int_send_name[EHEA_IRQ_NAME_SIZE];
struct ehea_qp *qp;
struct ehea_cq *send_cq;
struct ehea_cq *recv_cq;
struct ehea_eq *send_eq;
struct ehea_eq *recv_eq;
spinlock_t send_lock;
struct ehea_q_skb_arr rq1_skba;
struct ehea_q_skb_arr rq2_skba;
struct ehea_q_skb_arr rq3_skba;
struct ehea_q_skb_arr sq_skba;
spinlock_t netif_queue;
int queue_stopped;
int swqe_refill_th;
atomic_t swqe_avail;
int swqe_ll_count;
int swqe_count;
u32 swqe_id_counter;
u64 tx_packets;
struct tasklet_struct send_comp_task;
spinlock_t recv_lock;
struct port_state p_state;
u64 rx_packets;
u32 poll_counter;
};
struct ehea_adapter {
u64 handle;
u8 num_ports;
struct ehea_port *port[16];
struct ehea_eq *neq; /* notification event queue */
struct workqueue_struct *ehea_wq;
struct tasklet_struct neq_tasklet;
struct ehea_mr mr;
u32 pd; /* protection domain */
u64 max_mc_mac; /* max number of multicast mac addresses */
};
struct ehea_mc_list {
struct list_head list;
u64 macaddr;
};
#define EHEA_PORT_UP 1
#define EHEA_PORT_DOWN 0
#define EHEA_MAX_PORT_RES 16
struct ehea_port {
struct ehea_adapter *adapter; /* adapter that owns this port */
struct net_device *netdev;
struct net_device_stats stats;
struct ehea_port_res port_res[EHEA_MAX_PORT_RES];
struct device_node *of_dev_node; /* Open Firmware Device Node */
struct ehea_mc_list *mc_list; /* Multicast MAC addresses */
struct vlan_group *vgrp;
struct ehea_eq *qp_eq;
struct work_struct reset_task;
struct semaphore port_lock;
char int_aff_name[EHEA_IRQ_NAME_SIZE];
int allmulti; /* Indicates IFF_ALLMULTI state */
int promisc; /* Indicates IFF_PROMISC state */
int num_add_tx_qps;
int resets;
u64 mac_addr;
u32 logical_port_id;
u32 port_speed;
u32 msg_enable;
u32 sig_comp_iv;
u32 state;
u8 full_duplex;
u8 autoneg;
u8 num_def_qps;
};
struct port_res_cfg {
int max_entries_rcq;
int max_entries_scq;
int max_entries_sq;
int max_entries_rq1;
int max_entries_rq2;
int max_entries_rq3;
};
void ehea_set_ethtool_ops(struct net_device *netdev);
int ehea_sense_port_attr(struct ehea_port *port);
int ehea_set_portspeed(struct ehea_port *port, u32 port_speed);
#endif /* __EHEA_H__ */

294
drivers/net/ehea/ehea_ethtool.c Normal file
View File

@ -0,0 +1,294 @@
/*
* linux/drivers/net/ehea/ehea_ethtool.c
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*
*
* 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 Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ehea.h"
#include "ehea_phyp.h"
static int ehea_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct ehea_port *port = netdev_priv(dev);
int ret;
ret = ehea_sense_port_attr(port);
if (ret)
return ret;
if (netif_carrier_ok(dev)) {
switch(port->port_speed) {
case EHEA_SPEED_10M: cmd->speed = SPEED_10; break;
case EHEA_SPEED_100M: cmd->speed = SPEED_100; break;
case EHEA_SPEED_1G: cmd->speed = SPEED_1000; break;
case EHEA_SPEED_10G: cmd->speed = SPEED_10000; break;
}
cmd->duplex = port->full_duplex == 1 ?
DUPLEX_FULL : DUPLEX_HALF;
} else {
cmd->speed = -1;
cmd->duplex = -1;
}
cmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full
| SUPPORTED_100baseT_Full | SUPPORTED_100baseT_Half
| SUPPORTED_10baseT_Full | SUPPORTED_10baseT_Half
| SUPPORTED_Autoneg | SUPPORTED_FIBRE);
cmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_Autoneg
| ADVERTISED_FIBRE);
cmd->port = PORT_FIBRE;
cmd->autoneg = port->autoneg == 1 ? AUTONEG_ENABLE : AUTONEG_DISABLE;
return 0;
}
static int ehea_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct ehea_port *port = netdev_priv(dev);
int ret = 0;
u32 sp;
if (cmd->autoneg == AUTONEG_ENABLE) {
sp = EHEA_SPEED_AUTONEG;
goto doit;
}
switch(cmd->speed) {
case SPEED_10:
if (cmd->duplex == DUPLEX_FULL)
sp = H_SPEED_10M_F;
else
sp = H_SPEED_10M_H;
break;
case SPEED_100:
if (cmd->duplex == DUPLEX_FULL)
sp = H_SPEED_100M_F;
else
sp = H_SPEED_100M_H;
break;
case SPEED_1000:
if (cmd->duplex == DUPLEX_FULL)
sp = H_SPEED_1G_F;
else
ret = -EINVAL;
break;
case SPEED_10000:
if (cmd->duplex == DUPLEX_FULL)
sp = H_SPEED_10G_F;
else
ret = -EINVAL;
break;
default:
ret = -EINVAL;
break;
}
if (ret)
goto out;
doit:
ret = ehea_set_portspeed(port, sp);
if (!ret)
ehea_info("%s: Port speed succesfully set: %dMbps "
"%s Duplex",
port->netdev->name, port->port_speed,
port->full_duplex == 1 ? "Full" : "Half");
out:
return ret;
}
static int ehea_nway_reset(struct net_device *dev)
{
struct ehea_port *port = netdev_priv(dev);
int ret;
ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
if (!ret)
ehea_info("%s: Port speed succesfully set: %dMbps "
"%s Duplex",
port->netdev->name, port->port_speed,
port->full_duplex == 1 ? "Full" : "Half");
return ret;
}
static void ehea_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
strlcpy(info->driver, DRV_NAME, sizeof(info->driver) - 1);
strlcpy(info->version, DRV_VERSION, sizeof(info->version) - 1);
}
static u32 ehea_get_msglevel(struct net_device *dev)
{
struct ehea_port *port = netdev_priv(dev);
return port->msg_enable;
}
static void ehea_set_msglevel(struct net_device *dev, u32 value)
{
struct ehea_port *port = netdev_priv(dev);
port->msg_enable = value;
}
static u32 ehea_get_rx_csum(struct net_device *dev)
{
return 1;
}
static char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
{"poll_max_processed"},
{"queue_stopped"},
{"min_swqe_avail"},
{"poll_receive_err"},
{"pkt_send"},
{"pkt_xmit"},
{"send_tasklet"},
{"ehea_poll"},
{"nwqe"},
{"swqe_available_0"},
{"sig_comp_iv"},
{"swqe_refill_th"},
{"port resets"},
{"rxo"},
{"rx64"},
{"rx65"},
{"rx128"},
{"rx256"},
{"rx512"},
{"rx1024"},
{"txo"},
{"tx64"},
{"tx65"},
{"tx128"},
{"tx256"},
{"tx512"},
{"tx1024"},
};
static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
if (stringset == ETH_SS_STATS) {
memcpy(data, &ehea_ethtool_stats_keys,
sizeof(ehea_ethtool_stats_keys));
}
}
static int ehea_get_stats_count(struct net_device *dev)
{
return ARRAY_SIZE(ehea_ethtool_stats_keys);
}
static void ehea_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
u64 hret;
int i;
struct ehea_port *port = netdev_priv(dev);
struct ehea_adapter *adapter = port->adapter;
struct ehea_port_res *pr = &port->port_res[0];
struct port_state *p_state = &pr->p_state;
struct hcp_ehea_port_cb6 *cb6;
for (i = 0; i < ehea_get_stats_count(dev); i++)
data[i] = 0;
i = 0;
data[i++] = p_state->poll_max_processed;
data[i++] = p_state->queue_stopped;
data[i++] = p_state->min_swqe_avail;
data[i++] = p_state->poll_receive_errors;
data[i++] = p_state->pkt_send;
data[i++] = p_state->pkt_xmit;
data[i++] = p_state->send_tasklet;
data[i++] = p_state->ehea_poll;
data[i++] = p_state->nwqe;
data[i++] = atomic_read(&port->port_res[0].swqe_avail);
data[i++] = port->sig_comp_iv;
data[i++] = port->port_res[0].swqe_refill_th;
data[i++] = port->resets;
cb6 = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
if (!cb6) {
ehea_error("no mem for cb6");
return;
}
hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id,
H_PORT_CB6, H_PORT_CB6_ALL, cb6);
if (netif_msg_hw(port))
ehea_dump(cb6, sizeof(*cb6), "ehea_get_ethtool_stats");
if (hret == H_SUCCESS) {
data[i++] = cb6->rxo;
data[i++] = cb6->rx64;
data[i++] = cb6->rx65;
data[i++] = cb6->rx128;
data[i++] = cb6->rx256;
data[i++] = cb6->rx512;
data[i++] = cb6->rx1024;
data[i++] = cb6->txo;
data[i++] = cb6->tx64;
data[i++] = cb6->tx65;
data[i++] = cb6->tx128;
data[i++] = cb6->tx256;
data[i++] = cb6->tx512;
data[i++] = cb6->tx1024;
} else
ehea_error("query_ehea_port failed");
kfree(cb6);
}
struct ethtool_ops ehea_ethtool_ops = {
.get_settings = ehea_get_settings,
.get_drvinfo = ehea_get_drvinfo,
.get_msglevel = ehea_get_msglevel,
.set_msglevel = ehea_set_msglevel,
.get_link = ethtool_op_get_link,
.get_tx_csum = ethtool_op_get_tx_csum,
.get_sg = ethtool_op_get_sg,
.get_tso = ethtool_op_get_tso,
.set_tso = ethtool_op_set_tso,
.get_strings = ehea_get_strings,
.get_stats_count = ehea_get_stats_count,
.get_ethtool_stats = ehea_get_ethtool_stats,
.get_rx_csum = ehea_get_rx_csum,
.set_settings = ehea_set_settings,
.nway_reset = ehea_nway_reset, /* Restart autonegotiation */
};
void ehea_set_ethtool_ops(struct net_device *netdev)
{
SET_ETHTOOL_OPS(netdev, &ehea_ethtool_ops);
}

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/*
* linux/drivers/net/ehea/ehea_hcall.h
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*
*
* 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 Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __EHEA_HCALL_H__
#define __EHEA_HCALL_H__
/**
* This file contains HCALL defines that are to be included in the appropriate
* kernel files later
*/
#define H_ALLOC_HEA_RESOURCE 0x278
#define H_MODIFY_HEA_QP 0x250
#define H_QUERY_HEA_QP 0x254
#define H_QUERY_HEA 0x258
#define H_QUERY_HEA_PORT 0x25C
#define H_MODIFY_HEA_PORT 0x260
#define H_REG_BCMC 0x264
#define H_DEREG_BCMC 0x268
#define H_REGISTER_HEA_RPAGES 0x26C
#define H_DISABLE_AND_GET_HEA 0x270
#define H_GET_HEA_INFO 0x274
#define H_ADD_CONN 0x284
#define H_DEL_CONN 0x288
#endif /* __EHEA_HCALL_H__ */

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/*
* linux/drivers/net/ehea/ehea_hw.h
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*
*
* 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 Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __EHEA_HW_H__
#define __EHEA_HW_H__
#define QPX_SQA_VALUE EHEA_BMASK_IBM(48,63)
#define QPX_RQ1A_VALUE EHEA_BMASK_IBM(48,63)
#define QPX_RQ2A_VALUE EHEA_BMASK_IBM(48,63)
#define QPX_RQ3A_VALUE EHEA_BMASK_IBM(48,63)
#define QPTEMM_OFFSET(x) offsetof(struct ehea_qptemm, x)
struct ehea_qptemm {
u64 qpx_hcr;
u64 qpx_c;
u64 qpx_herr;
u64 qpx_aer;
u64 qpx_sqa;
u64 qpx_sqc;
u64 qpx_rq1a;
u64 qpx_rq1c;
u64 qpx_st;
u64 qpx_aerr;
u64 qpx_tenure;
u64 qpx_reserved1[(0x098 - 0x058) / 8];
u64 qpx_portp;
u64 qpx_reserved2[(0x100 - 0x0A0) / 8];
u64 qpx_t;
u64 qpx_sqhp;
u64 qpx_sqptp;
u64 qpx_reserved3[(0x140 - 0x118) / 8];
u64 qpx_sqwsize;
u64 qpx_reserved4[(0x170 - 0x148) / 8];
u64 qpx_sqsize;
u64 qpx_reserved5[(0x1B0 - 0x178) / 8];
u64 qpx_sigt;
u64 qpx_wqecnt;
u64 qpx_rq1hp;
u64 qpx_rq1ptp;
u64 qpx_rq1size;
u64 qpx_reserved6[(0x220 - 0x1D8) / 8];
u64 qpx_rq1wsize;
u64 qpx_reserved7[(0x240 - 0x228) / 8];
u64 qpx_pd;
u64 qpx_scqn;
u64 qpx_rcqn;
u64 qpx_aeqn;
u64 reserved49;
u64 qpx_ram;
u64 qpx_reserved8[(0x300 - 0x270) / 8];
u64 qpx_rq2a;
u64 qpx_rq2c;
u64 qpx_rq2hp;
u64 qpx_rq2ptp;
u64 qpx_rq2size;
u64 qpx_rq2wsize;
u64 qpx_rq2th;
u64 qpx_rq3a;
u64 qpx_rq3c;
u64 qpx_rq3hp;
u64 qpx_rq3ptp;
u64 qpx_rq3size;
u64 qpx_rq3wsize;
u64 qpx_rq3th;
u64 qpx_lpn;
u64 qpx_reserved9[(0x400 - 0x378) / 8];
u64 reserved_ext[(0x500 - 0x400) / 8];
u64 reserved2[(0x1000 - 0x500) / 8];
};
#define MRx_HCR_LPARID_VALID EHEA_BMASK_IBM(0, 0)
#define MRMWMM_OFFSET(x) offsetof(struct ehea_mrmwmm, x)
struct ehea_mrmwmm {
u64 mrx_hcr;
u64 mrx_c;
u64 mrx_herr;
u64 mrx_aer;
u64 mrx_pp;
u64 reserved1;
u64 reserved2;
u64 reserved3;
u64 reserved4[(0x200 - 0x40) / 8];
u64 mrx_ctl[64];
};
#define QPEDMM_OFFSET(x) offsetof(struct ehea_qpedmm, x)
struct ehea_qpedmm {
u64 reserved0[(0x400) / 8];
u64 qpedx_phh;
u64 qpedx_ppsgp;
u64 qpedx_ppsgu;
u64 qpedx_ppdgp;
u64 qpedx_ppdgu;
u64 qpedx_aph;
u64 qpedx_apsgp;
u64 qpedx_apsgu;
u64 qpedx_apdgp;
u64 qpedx_apdgu;
u64 qpedx_apav;
u64 qpedx_apsav;
u64 qpedx_hcr;
u64 reserved1[4];
u64 qpedx_rrl0;
u64 qpedx_rrrkey0;
u64 qpedx_rrva0;
u64 reserved2;
u64 qpedx_rrl1;
u64 qpedx_rrrkey1;
u64 qpedx_rrva1;
u64 reserved3;
u64 qpedx_rrl2;
u64 qpedx_rrrkey2;
u64 qpedx_rrva2;
u64 reserved4;
u64 qpedx_rrl3;
u64 qpedx_rrrkey3;
u64 qpedx_rrva3;
};
#define CQX_FECADDER EHEA_BMASK_IBM(32, 63)
#define CQX_FEC_CQE_CNT EHEA_BMASK_IBM(32, 63)
#define CQX_N1_GENERATE_COMP_EVENT EHEA_BMASK_IBM(0, 0)
#define CQX_EP_EVENT_PENDING EHEA_BMASK_IBM(0, 0)
#define CQTEMM_OFFSET(x) offsetof(struct ehea_cqtemm, x)
struct ehea_cqtemm {
u64 cqx_hcr;
u64 cqx_c;
u64 cqx_herr;
u64 cqx_aer;
u64 cqx_ptp;
u64 cqx_tp;
u64 cqx_fec;
u64 cqx_feca;
u64 cqx_ep;
u64 cqx_eq;
u64 reserved1;
u64 cqx_n0;
u64 cqx_n1;
u64 reserved2[(0x1000 - 0x60) / 8];
};
#define EQTEMM_OFFSET(x) offsetof(struct ehea_eqtemm, x)
struct ehea_eqtemm {
u64 eqx_hcr;
u64 eqx_c;
u64 eqx_herr;
u64 eqx_aer;
u64 eqx_ptp;
u64 eqx_tp;
u64 eqx_ssba;
u64 eqx_psba;
u64 eqx_cec;
u64 eqx_meql;
u64 eqx_xisbi;
u64 eqx_xisc;
u64 eqx_it;
};
static inline u64 epa_load(struct h_epa epa, u32 offset)
{
return readq((void __iomem *)(epa.addr + offset));
}
static inline void epa_store(struct h_epa epa, u32 offset, u64 value)
{
writeq(value, (void __iomem *)(epa.addr + offset));
epa_load(epa, offset); /* synchronize explicitly to eHEA */
}
static inline void epa_store_acc(struct h_epa epa, u32 offset, u64 value)
{
writeq(value, (void __iomem *)(epa.addr + offset));
}
#define epa_store_eq(epa, offset, value)\
epa_store(epa, EQTEMM_OFFSET(offset), value)
#define epa_load_eq(epa, offset)\
epa_load(epa, EQTEMM_OFFSET(offset))
#define epa_store_cq(epa, offset, value)\
epa_store(epa, CQTEMM_OFFSET(offset), value)
#define epa_load_cq(epa, offset)\
epa_load(epa, CQTEMM_OFFSET(offset))
#define epa_store_qp(epa, offset, value)\
epa_store(epa, QPTEMM_OFFSET(offset), value)
#define epa_load_qp(epa, offset)\
epa_load(epa, QPTEMM_OFFSET(offset))
#define epa_store_qped(epa, offset, value)\
epa_store(epa, QPEDMM_OFFSET(offset), value)
#define epa_load_qped(epa, offset)\
epa_load(epa, QPEDMM_OFFSET(offset))
#define epa_store_mrmw(epa, offset, value)\
epa_store(epa, MRMWMM_OFFSET(offset), value)
#define epa_load_mrmw(epa, offset)\
epa_load(epa, MRMWMM_OFFSET(offset))
#define epa_store_base(epa, offset, value)\
epa_store(epa, HCAGR_OFFSET(offset), value)
#define epa_load_base(epa, offset)\
epa_load(epa, HCAGR_OFFSET(offset))
static inline void ehea_update_sqa(struct ehea_qp *qp, u16 nr_wqes)
{
struct h_epa epa = qp->epas.kernel;
epa_store_acc(epa, QPTEMM_OFFSET(qpx_sqa),
EHEA_BMASK_SET(QPX_SQA_VALUE, nr_wqes));
}
static inline void ehea_update_rq3a(struct ehea_qp *qp, u16 nr_wqes)
{
struct h_epa epa = qp->epas.kernel;
epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq3a),
EHEA_BMASK_SET(QPX_RQ1A_VALUE, nr_wqes));
}
static inline void ehea_update_rq2a(struct ehea_qp *qp, u16 nr_wqes)
{
struct h_epa epa = qp->epas.kernel;
epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq2a),
EHEA_BMASK_SET(QPX_RQ2A_VALUE, nr_wqes));
}
static inline void ehea_update_rq1a(struct ehea_qp *qp, u16 nr_wqes)
{
struct h_epa epa = qp->epas.kernel;
epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq1a),
EHEA_BMASK_SET(QPX_RQ3A_VALUE, nr_wqes));
}
static inline void ehea_update_feca(struct ehea_cq *cq, u32 nr_cqes)
{
struct h_epa epa = cq->epas.kernel;
epa_store_acc(epa, CQTEMM_OFFSET(cqx_feca),
EHEA_BMASK_SET(CQX_FECADDER, nr_cqes));
}
static inline void ehea_reset_cq_n1(struct ehea_cq *cq)
{
struct h_epa epa = cq->epas.kernel;
epa_store_cq(epa, cqx_n1,
EHEA_BMASK_SET(CQX_N1_GENERATE_COMP_EVENT, 1));
}
static inline void ehea_reset_cq_ep(struct ehea_cq *my_cq)
{
struct h_epa epa = my_cq->epas.kernel;
epa_store_acc(epa, CQTEMM_OFFSET(cqx_ep),
EHEA_BMASK_SET(CQX_EP_EVENT_PENDING, 0));
}
#endif /* __EHEA_HW_H__ */

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/*
* linux/drivers/net/ehea/ehea_phyp.c
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*
*
* 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 Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ehea_phyp.h"
static inline u16 get_order_of_qentries(u16 queue_entries)
{
u8 ld = 1; /* logarithmus dualis */
while (((1U << ld) - 1) < queue_entries)
ld++;
return ld - 1;
}
/* Defines for H_CALL H_ALLOC_RESOURCE */
#define H_ALL_RES_TYPE_QP 1
#define H_ALL_RES_TYPE_CQ 2
#define H_ALL_RES_TYPE_EQ 3
#define H_ALL_RES_TYPE_MR 5
#define H_ALL_RES_TYPE_MW 6
static long ehea_hcall_9arg_9ret(unsigned long opcode,
unsigned long arg1, unsigned long arg2,
unsigned long arg3, unsigned long arg4,
unsigned long arg5, unsigned long arg6,
unsigned long arg7, unsigned long arg8,
unsigned long arg9, unsigned long *out1,
unsigned long *out2,unsigned long *out3,
unsigned long *out4,unsigned long *out5,
unsigned long *out6,unsigned long *out7,
unsigned long *out8,unsigned long *out9)
{
long hret;
int i, sleep_msecs;
for (i = 0; i < 5; i++) {
hret = plpar_hcall_9arg_9ret(opcode,arg1, arg2, arg3, arg4,
arg5, arg6, arg7, arg8, arg9, out1,
out2, out3, out4, out5, out6, out7,
out8, out9);
if (H_IS_LONG_BUSY(hret)) {
sleep_msecs = get_longbusy_msecs(hret);
msleep_interruptible(sleep_msecs);
continue;
}
if (hret < H_SUCCESS)
ehea_error("op=%lx hret=%lx "
"i1=%lx i2=%lx i3=%lx i4=%lx i5=%lx i6=%lx "
"i7=%lx i8=%lx i9=%lx "
"o1=%lx o2=%lx o3=%lx o4=%lx o5=%lx o6=%lx "
"o7=%lx o8=%lx o9=%lx",
opcode, hret, arg1, arg2, arg3, arg4, arg5,
arg6, arg7, arg8, arg9, *out1, *out2, *out3,
*out4, *out5, *out6, *out7, *out8, *out9);
return hret;
}
return H_BUSY;
}
u64 ehea_h_query_ehea_qp(const u64 adapter_handle, const u8 qp_category,
const u64 qp_handle, const u64 sel_mask, void *cb_addr)
{
u64 dummy;
if ((((u64)cb_addr) & (PAGE_SIZE - 1)) != 0) {
ehea_error("not on pageboundary");
return H_PARAMETER;
}
return ehea_hcall_9arg_9ret(H_QUERY_HEA_QP,
adapter_handle, /* R4 */
qp_category, /* R5 */
qp_handle, /* R6 */
sel_mask, /* R7 */
virt_to_abs(cb_addr), /* R8 */
0, 0, 0, 0, /* R9-R12 */
&dummy, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
}
/* input param R5 */
#define H_ALL_RES_QP_EQPO EHEA_BMASK_IBM(9, 11)
#define H_ALL_RES_QP_QPP EHEA_BMASK_IBM(12, 12)
#define H_ALL_RES_QP_RQR EHEA_BMASK_IBM(13, 15)
#define H_ALL_RES_QP_EQEG EHEA_BMASK_IBM(16, 16)
#define H_ALL_RES_QP_LL_QP EHEA_BMASK_IBM(17, 17)
#define H_ALL_RES_QP_DMA128 EHEA_BMASK_IBM(19, 19)
#define H_ALL_RES_QP_HSM EHEA_BMASK_IBM(20, 21)
#define H_ALL_RES_QP_SIGT EHEA_BMASK_IBM(22, 23)
#define H_ALL_RES_QP_TENURE EHEA_BMASK_IBM(48, 55)
#define H_ALL_RES_QP_RES_TYP EHEA_BMASK_IBM(56, 63)
/* input param R9 */
#define H_ALL_RES_QP_TOKEN EHEA_BMASK_IBM(0, 31)
#define H_ALL_RES_QP_PD EHEA_BMASK_IBM(32,63)
/* input param R10 */
#define H_ALL_RES_QP_MAX_SWQE EHEA_BMASK_IBM(4, 7)
#define H_ALL_RES_QP_MAX_R1WQE EHEA_BMASK_IBM(12, 15)
#define H_ALL_RES_QP_MAX_R2WQE EHEA_BMASK_IBM(20, 23)
#define H_ALL_RES_QP_MAX_R3WQE EHEA_BMASK_IBM(28, 31)
/* Max Send Scatter Gather Elements */
#define H_ALL_RES_QP_MAX_SSGE EHEA_BMASK_IBM(37, 39)
#define H_ALL_RES_QP_MAX_R1SGE EHEA_BMASK_IBM(45, 47)
/* Max Receive SG Elements RQ1 */
#define H_ALL_RES_QP_MAX_R2SGE EHEA_BMASK_IBM(53, 55)
#define H_ALL_RES_QP_MAX_R3SGE EHEA_BMASK_IBM(61, 63)
/* input param R11 */
#define H_ALL_RES_QP_SWQE_IDL EHEA_BMASK_IBM(0, 7)
/* max swqe immediate data length */
#define H_ALL_RES_QP_PORT_NUM EHEA_BMASK_IBM(48, 63)
/* input param R12 */
#define H_ALL_RES_QP_TH_RQ2 EHEA_BMASK_IBM(0, 15)
/* Threshold RQ2 */
#define H_ALL_RES_QP_TH_RQ3 EHEA_BMASK_IBM(16, 31)
/* Threshold RQ3 */
/* output param R6 */
#define H_ALL_RES_QP_ACT_SWQE EHEA_BMASK_IBM(0, 15)
#define H_ALL_RES_QP_ACT_R1WQE EHEA_BMASK_IBM(16, 31)
#define H_ALL_RES_QP_ACT_R2WQE EHEA_BMASK_IBM(32, 47)
#define H_ALL_RES_QP_ACT_R3WQE EHEA_BMASK_IBM(48, 63)
/* output param, R7 */
#define H_ALL_RES_QP_ACT_SSGE EHEA_BMASK_IBM(0, 7)
#define H_ALL_RES_QP_ACT_R1SGE EHEA_BMASK_IBM(8, 15)
#define H_ALL_RES_QP_ACT_R2SGE EHEA_BMASK_IBM(16, 23)
#define H_ALL_RES_QP_ACT_R3SGE EHEA_BMASK_IBM(24, 31)
#define H_ALL_RES_QP_ACT_SWQE_IDL EHEA_BMASK_IBM(32, 39)
/* output param R8,R9 */
#define H_ALL_RES_QP_SIZE_SQ EHEA_BMASK_IBM(0, 31)
#define H_ALL_RES_QP_SIZE_RQ1 EHEA_BMASK_IBM(32, 63)
#define H_ALL_RES_QP_SIZE_RQ2 EHEA_BMASK_IBM(0, 31)
#define H_ALL_RES_QP_SIZE_RQ3 EHEA_BMASK_IBM(32, 63)
/* output param R11,R12 */
#define H_ALL_RES_QP_LIOBN_SQ EHEA_BMASK_IBM(0, 31)
#define H_ALL_RES_QP_LIOBN_RQ1 EHEA_BMASK_IBM(32, 63)
#define H_ALL_RES_QP_LIOBN_RQ2 EHEA_BMASK_IBM(0, 31)
#define H_ALL_RES_QP_LIOBN_RQ3 EHEA_BMASK_IBM(32, 63)
u64 ehea_h_alloc_resource_qp(const u64 adapter_handle,
struct ehea_qp_init_attr *init_attr, const u32 pd,
u64 *qp_handle, struct h_epas *h_epas)
{
u64 hret;
u64 allocate_controls =
EHEA_BMASK_SET(H_ALL_RES_QP_EQPO, init_attr->low_lat_rq1 ? 1 : 0)
| EHEA_BMASK_SET(H_ALL_RES_QP_QPP, 0)
| EHEA_BMASK_SET(H_ALL_RES_QP_RQR, 6) /* rq1 & rq2 & rq3 */
| EHEA_BMASK_SET(H_ALL_RES_QP_EQEG, 0) /* EQE gen. disabled */
| EHEA_BMASK_SET(H_ALL_RES_QP_LL_QP, init_attr->low_lat_rq1)
| EHEA_BMASK_SET(H_ALL_RES_QP_DMA128, 0)
| EHEA_BMASK_SET(H_ALL_RES_QP_HSM, 0)
| EHEA_BMASK_SET(H_ALL_RES_QP_SIGT, init_attr->signalingtype)
| EHEA_BMASK_SET(H_ALL_RES_QP_RES_TYP, H_ALL_RES_TYPE_QP);
u64 r9_reg = EHEA_BMASK_SET(H_ALL_RES_QP_PD, pd)
| EHEA_BMASK_SET(H_ALL_RES_QP_TOKEN, init_attr->qp_token);
u64 max_r10_reg =
EHEA_BMASK_SET(H_ALL_RES_QP_MAX_SWQE,
get_order_of_qentries(init_attr->max_nr_send_wqes))
| EHEA_BMASK_SET(H_ALL_RES_QP_MAX_R1WQE,
get_order_of_qentries(init_attr->max_nr_rwqes_rq1))
| EHEA_BMASK_SET(H_ALL_RES_QP_MAX_R2WQE,
get_order_of_qentries(init_attr->max_nr_rwqes_rq2))
| EHEA_BMASK_SET(H_ALL_RES_QP_MAX_R3WQE,
get_order_of_qentries(init_attr->max_nr_rwqes_rq3))
| EHEA_BMASK_SET(H_ALL_RES_QP_MAX_SSGE, init_attr->wqe_size_enc_sq)
| EHEA_BMASK_SET(H_ALL_RES_QP_MAX_R1SGE,
init_attr->wqe_size_enc_rq1)
| EHEA_BMASK_SET(H_ALL_RES_QP_MAX_R2SGE,
init_attr->wqe_size_enc_rq2)
| EHEA_BMASK_SET(H_ALL_RES_QP_MAX_R3SGE,
init_attr->wqe_size_enc_rq3);
u64 r11_in =
EHEA_BMASK_SET(H_ALL_RES_QP_SWQE_IDL, init_attr->swqe_imm_data_len)
| EHEA_BMASK_SET(H_ALL_RES_QP_PORT_NUM, init_attr->port_nr);
u64 threshold =
EHEA_BMASK_SET(H_ALL_RES_QP_TH_RQ2, init_attr->rq2_threshold)
| EHEA_BMASK_SET(H_ALL_RES_QP_TH_RQ3, init_attr->rq3_threshold);
u64 r5_out = 0;
u64 r6_out = 0;
u64 r7_out = 0;
u64 r8_out = 0;
u64 r9_out = 0;
u64 g_la_user_out = 0;
u64 r11_out = 0;
u64 r12_out = 0;
hret = ehea_hcall_9arg_9ret(H_ALLOC_HEA_RESOURCE,
adapter_handle, /* R4 */
allocate_controls, /* R5 */
init_attr->send_cq_handle, /* R6 */
init_attr->recv_cq_handle, /* R7 */
init_attr->aff_eq_handle, /* R8 */
r9_reg, /* R9 */
max_r10_reg, /* R10 */
r11_in, /* R11 */
threshold, /* R12 */
qp_handle, /* R4 */
&r5_out, /* R5 */
&r6_out, /* R6 */
&r7_out, /* R7 */
&r8_out, /* R8 */
&r9_out, /* R9 */
&g_la_user_out, /* R10 */
&r11_out, /* R11 */
&r12_out); /* R12 */
init_attr->qp_nr = (u32)r5_out;
init_attr->act_nr_send_wqes =
(u16)EHEA_BMASK_GET(H_ALL_RES_QP_ACT_SWQE, r6_out);
init_attr->act_nr_rwqes_rq1 =
(u16)EHEA_BMASK_GET(H_ALL_RES_QP_ACT_R1WQE, r6_out);
init_attr->act_nr_rwqes_rq2 =
(u16)EHEA_BMASK_GET(H_ALL_RES_QP_ACT_R2WQE, r6_out);
init_attr->act_nr_rwqes_rq3 =
(u16)EHEA_BMASK_GET(H_ALL_RES_QP_ACT_R3WQE, r6_out);
init_attr->act_wqe_size_enc_sq = init_attr->wqe_size_enc_sq;
init_attr->act_wqe_size_enc_rq1 = init_attr->wqe_size_enc_rq1;
init_attr->act_wqe_size_enc_rq2 = init_attr->wqe_size_enc_rq2;
init_attr->act_wqe_size_enc_rq3 = init_attr->wqe_size_enc_rq3;
init_attr->nr_sq_pages =
(u32)EHEA_BMASK_GET(H_ALL_RES_QP_SIZE_SQ, r8_out);
init_attr->nr_rq1_pages =
(u32)EHEA_BMASK_GET(H_ALL_RES_QP_SIZE_RQ1, r8_out);
init_attr->nr_rq2_pages =
(u32)EHEA_BMASK_GET(H_ALL_RES_QP_SIZE_RQ2, r9_out);
init_attr->nr_rq3_pages =
(u32)EHEA_BMASK_GET(H_ALL_RES_QP_SIZE_RQ3, r9_out);
init_attr->liobn_sq =
(u32)EHEA_BMASK_GET(H_ALL_RES_QP_LIOBN_SQ, r11_out);
init_attr->liobn_rq1 =
(u32)EHEA_BMASK_GET(H_ALL_RES_QP_LIOBN_RQ1, r11_out);
init_attr->liobn_rq2 =
(u32)EHEA_BMASK_GET(H_ALL_RES_QP_LIOBN_RQ2, r12_out);
init_attr->liobn_rq3 =
(u32)EHEA_BMASK_GET(H_ALL_RES_QP_LIOBN_RQ3, r12_out);
if (!hret)
hcp_epas_ctor(h_epas, g_la_user_out, g_la_user_out);
return hret;
}
u64 ehea_h_alloc_resource_cq(const u64 adapter_handle,
struct ehea_cq_attr *cq_attr,
u64 *cq_handle, struct h_epas *epas)
{
u64 hret, dummy, act_nr_of_cqes_out, act_pages_out;
u64 g_la_privileged_out, g_la_user_out;
hret = ehea_hcall_9arg_9ret(H_ALLOC_HEA_RESOURCE,
adapter_handle, /* R4 */
H_ALL_RES_TYPE_CQ, /* R5 */
cq_attr->eq_handle, /* R6 */
cq_attr->cq_token, /* R7 */
cq_attr->max_nr_of_cqes, /* R8 */
0, 0, 0, 0, /* R9-R12 */
cq_handle, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&act_nr_of_cqes_out, /* R7 */
&act_pages_out, /* R8 */
&g_la_privileged_out, /* R9 */
&g_la_user_out, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
cq_attr->act_nr_of_cqes = act_nr_of_cqes_out;
cq_attr->nr_pages = act_pages_out;
if (!hret)
hcp_epas_ctor(epas, g_la_privileged_out, g_la_user_out);
return hret;
}
/* Defines for H_CALL H_ALLOC_RESOURCE */
#define H_ALL_RES_TYPE_QP 1
#define H_ALL_RES_TYPE_CQ 2
#define H_ALL_RES_TYPE_EQ 3
#define H_ALL_RES_TYPE_MR 5
#define H_ALL_RES_TYPE_MW 6
/* input param R5 */
#define H_ALL_RES_EQ_NEQ EHEA_BMASK_IBM(0, 0)
#define H_ALL_RES_EQ_NON_NEQ_ISN EHEA_BMASK_IBM(6, 7)
#define H_ALL_RES_EQ_INH_EQE_GEN EHEA_BMASK_IBM(16, 16)
#define H_ALL_RES_EQ_RES_TYPE EHEA_BMASK_IBM(56, 63)
/* input param R6 */
#define H_ALL_RES_EQ_MAX_EQE EHEA_BMASK_IBM(32, 63)
/* output param R6 */
#define H_ALL_RES_EQ_LIOBN EHEA_BMASK_IBM(32, 63)
/* output param R7 */
#define H_ALL_RES_EQ_ACT_EQE EHEA_BMASK_IBM(32, 63)
/* output param R8 */
#define H_ALL_RES_EQ_ACT_PS EHEA_BMASK_IBM(32, 63)
/* output param R9 */
#define H_ALL_RES_EQ_ACT_EQ_IST_C EHEA_BMASK_IBM(30, 31)
#define H_ALL_RES_EQ_ACT_EQ_IST_1 EHEA_BMASK_IBM(40, 63)
/* output param R10 */
#define H_ALL_RES_EQ_ACT_EQ_IST_2 EHEA_BMASK_IBM(40, 63)
/* output param R11 */
#define H_ALL_RES_EQ_ACT_EQ_IST_3 EHEA_BMASK_IBM(40, 63)
/* output param R12 */
#define H_ALL_RES_EQ_ACT_EQ_IST_4 EHEA_BMASK_IBM(40, 63)
u64 ehea_h_alloc_resource_eq(const u64 adapter_handle,
struct ehea_eq_attr *eq_attr, u64 *eq_handle)
{
u64 hret, dummy, eq_liobn, allocate_controls;
u64 ist1_out, ist2_out, ist3_out, ist4_out;
u64 act_nr_of_eqes_out, act_pages_out;
/* resource type */
allocate_controls =
EHEA_BMASK_SET(H_ALL_RES_EQ_RES_TYPE, H_ALL_RES_TYPE_EQ)
| EHEA_BMASK_SET(H_ALL_RES_EQ_NEQ, eq_attr->type ? 1 : 0)
| EHEA_BMASK_SET(H_ALL_RES_EQ_INH_EQE_GEN, !eq_attr->eqe_gen)
| EHEA_BMASK_SET(H_ALL_RES_EQ_NON_NEQ_ISN, 1);
hret = ehea_hcall_9arg_9ret(H_ALLOC_HEA_RESOURCE,
adapter_handle, /* R4 */
allocate_controls, /* R5 */
eq_attr->max_nr_of_eqes, /* R6 */
0, 0, 0, 0, 0, 0, /* R7-R10 */
eq_handle, /* R4 */
&dummy, /* R5 */
&eq_liobn, /* R6 */
&act_nr_of_eqes_out, /* R7 */
&act_pages_out, /* R8 */
&ist1_out, /* R9 */
&ist2_out, /* R10 */
&ist3_out, /* R11 */
&ist4_out); /* R12 */
eq_attr->act_nr_of_eqes = act_nr_of_eqes_out;
eq_attr->nr_pages = act_pages_out;
eq_attr->ist1 = ist1_out;
eq_attr->ist2 = ist2_out;
eq_attr->ist3 = ist3_out;
eq_attr->ist4 = ist4_out;
return hret;
}
u64 ehea_h_modify_ehea_qp(const u64 adapter_handle, const u8 cat,
const u64 qp_handle, const u64 sel_mask,
void *cb_addr, u64 *inv_attr_id, u64 *proc_mask,
u16 *out_swr, u16 *out_rwr)
{
u64 hret, dummy, act_out_swr, act_out_rwr;
if ((((u64)cb_addr) & (PAGE_SIZE - 1)) != 0) {
ehea_error("not on page boundary");
return H_PARAMETER;
}
hret = ehea_hcall_9arg_9ret(H_MODIFY_HEA_QP,
adapter_handle, /* R4 */
(u64) cat, /* R5 */
qp_handle, /* R6 */
sel_mask, /* R7 */
virt_to_abs(cb_addr), /* R8 */
0, 0, 0, 0, /* R9-R12 */
inv_attr_id, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&act_out_swr, /* R7 */
&act_out_rwr, /* R8 */
proc_mask, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
*out_swr = act_out_swr;
*out_rwr = act_out_rwr;
return hret;
}
u64 ehea_h_register_rpage(const u64 adapter_handle, const u8 pagesize,
const u8 queue_type, const u64 resource_handle,
const u64 log_pageaddr, u64 count)
{
u64 dummy, reg_control;
reg_control = EHEA_BMASK_SET(H_REG_RPAGE_PAGE_SIZE, pagesize)
| EHEA_BMASK_SET(H_REG_RPAGE_QT, queue_type);
return ehea_hcall_9arg_9ret(H_REGISTER_HEA_RPAGES,
adapter_handle, /* R4 */
reg_control, /* R5 */
resource_handle, /* R6 */
log_pageaddr, /* R7 */
count, /* R8 */
0, 0, 0, 0, /* R9-R12 */
&dummy, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
}
u64 ehea_h_register_smr(const u64 adapter_handle, const u64 orig_mr_handle,
const u64 vaddr_in, const u32 access_ctrl, const u32 pd,
struct ehea_mr *mr)
{
u64 hret, dummy, lkey_out;
hret = ehea_hcall_9arg_9ret(H_REGISTER_SMR,
adapter_handle , /* R4 */
orig_mr_handle, /* R5 */
vaddr_in, /* R6 */
(((u64)access_ctrl) << 32ULL), /* R7 */
pd, /* R8 */
0, 0, 0, 0, /* R9-R12 */
&mr->handle, /* R4 */
&dummy, /* R5 */
&lkey_out, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
mr->lkey = (u32)lkey_out;
return hret;
}
u64 ehea_h_disable_and_get_hea(const u64 adapter_handle, const u64 qp_handle)
{
u64 hret, dummy, ladr_next_sq_wqe_out;
u64 ladr_next_rq1_wqe_out, ladr_next_rq2_wqe_out, ladr_next_rq3_wqe_out;
hret = ehea_hcall_9arg_9ret(H_DISABLE_AND_GET_HEA,
adapter_handle, /* R4 */
H_DISABLE_GET_EHEA_WQE_P, /* R5 */
qp_handle, /* R6 */
0, 0, 0, 0, 0, 0, /* R7-R12 */
&ladr_next_sq_wqe_out, /* R4 */
&ladr_next_rq1_wqe_out, /* R5 */
&ladr_next_rq2_wqe_out, /* R6 */
&ladr_next_rq3_wqe_out, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
return hret;
}
u64 ehea_h_free_resource(const u64 adapter_handle, const u64 res_handle)
{
u64 dummy;
return ehea_hcall_9arg_9ret(H_FREE_RESOURCE,
adapter_handle, /* R4 */
res_handle, /* R5 */
0, 0, 0, 0, 0, 0, 0, /* R6-R12 */
&dummy, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
}
u64 ehea_h_alloc_resource_mr(const u64 adapter_handle, const u64 vaddr,
const u64 length, const u32 access_ctrl,
const u32 pd, u64 *mr_handle, u32 *lkey)
{
u64 hret, dummy, lkey_out;
hret = ehea_hcall_9arg_9ret(H_ALLOC_HEA_RESOURCE,
adapter_handle, /* R4 */
5, /* R5 */
vaddr, /* R6 */
length, /* R7 */
(((u64) access_ctrl) << 32ULL),/* R8 */
pd, /* R9 */
0, 0, 0, /* R10-R12 */
mr_handle, /* R4 */
&dummy, /* R5 */
&lkey_out, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
*lkey = (u32) lkey_out;
return hret;
}
u64 ehea_h_register_rpage_mr(const u64 adapter_handle, const u64 mr_handle,
const u8 pagesize, const u8 queue_type,
const u64 log_pageaddr, const u64 count)
{
if ((count > 1) && (log_pageaddr & 0xfff)) {
ehea_error("not on pageboundary");
return H_PARAMETER;
}
return ehea_h_register_rpage(adapter_handle, pagesize,
queue_type, mr_handle,
log_pageaddr, count);
}
u64 ehea_h_query_ehea(const u64 adapter_handle, void *cb_addr)
{
u64 hret, dummy, cb_logaddr;
cb_logaddr = virt_to_abs(cb_addr);
hret = ehea_hcall_9arg_9ret(H_QUERY_HEA,
adapter_handle, /* R4 */
cb_logaddr, /* R5 */
0, 0, 0, 0, 0, 0, 0, /* R6-R12 */
&dummy, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
#ifdef DEBUG
ehea_dmp(cb_addr, sizeof(struct hcp_query_ehea), "hcp_query_ehea");
#endif
return hret;
}
u64 ehea_h_query_ehea_port(const u64 adapter_handle, const u16 port_num,
const u8 cb_cat, const u64 select_mask,
void *cb_addr)
{
u64 port_info, dummy;
u64 cb_logaddr = virt_to_abs(cb_addr);
u64 arr_index = 0;
port_info = EHEA_BMASK_SET(H_MEHEAPORT_CAT, cb_cat)
| EHEA_BMASK_SET(H_MEHEAPORT_PN, port_num);
return ehea_hcall_9arg_9ret(H_QUERY_HEA_PORT,
adapter_handle, /* R4 */
port_info, /* R5 */
select_mask, /* R6 */
arr_index, /* R7 */
cb_logaddr, /* R8 */
0, 0, 0, 0, /* R9-R12 */
&dummy, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
}
u64 ehea_h_modify_ehea_port(const u64 adapter_handle, const u16 port_num,
const u8 cb_cat, const u64 select_mask,
void *cb_addr)
{
u64 port_info, dummy, inv_attr_ident, proc_mask;
u64 arr_index = 0;
u64 cb_logaddr = virt_to_abs(cb_addr);
port_info = EHEA_BMASK_SET(H_MEHEAPORT_CAT, cb_cat)
| EHEA_BMASK_SET(H_MEHEAPORT_PN, port_num);
#ifdef DEBUG
ehea_dump(cb_addr, sizeof(struct hcp_ehea_port_cb0), "Before HCALL");
#endif
return ehea_hcall_9arg_9ret(H_MODIFY_HEA_PORT,
adapter_handle, /* R4 */
port_info, /* R5 */
select_mask, /* R6 */
arr_index, /* R7 */
cb_logaddr, /* R8 */
0, 0, 0, 0, /* R9-R12 */
&inv_attr_ident, /* R4 */
&proc_mask, /* R5 */
&dummy, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
}
u64 ehea_h_reg_dereg_bcmc(const u64 adapter_handle, const u16 port_num,
const u8 reg_type, const u64 mc_mac_addr,
const u16 vlan_id, const u32 hcall_id)
{
u64 r5_port_num, r6_reg_type, r7_mc_mac_addr, r8_vlan_id, dummy;
u64 mac_addr = mc_mac_addr >> 16;
r5_port_num = EHEA_BMASK_SET(H_REGBCMC_PN, port_num);
r6_reg_type = EHEA_BMASK_SET(H_REGBCMC_REGTYPE, reg_type);
r7_mc_mac_addr = EHEA_BMASK_SET(H_REGBCMC_MACADDR, mac_addr);
r8_vlan_id = EHEA_BMASK_SET(H_REGBCMC_VLANID, vlan_id);
return ehea_hcall_9arg_9ret(hcall_id,
adapter_handle, /* R4 */
r5_port_num, /* R5 */
r6_reg_type, /* R6 */
r7_mc_mac_addr, /* R7 */
r8_vlan_id, /* R8 */
0, 0, 0, 0, /* R9-R12 */
&dummy, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
}
u64 ehea_h_reset_events(const u64 adapter_handle, const u64 neq_handle,
const u64 event_mask)
{
u64 dummy;
return ehea_hcall_9arg_9ret(H_RESET_EVENTS,
adapter_handle, /* R4 */
neq_handle, /* R5 */
event_mask, /* R6 */
0, 0, 0, 0, 0, 0, /* R7-R12 */
&dummy, /* R4 */
&dummy, /* R5 */
&dummy, /* R6 */
&dummy, /* R7 */
&dummy, /* R8 */
&dummy, /* R9 */
&dummy, /* R10 */
&dummy, /* R11 */
&dummy); /* R12 */
}

455
drivers/net/ehea/ehea_phyp.h Normal file
View File

@ -0,0 +1,455 @@
/*
* linux/drivers/net/ehea/ehea_phyp.h
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*
*
* 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 Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __EHEA_PHYP_H__
#define __EHEA_PHYP_H__
#include <linux/delay.h>
#include <asm/hvcall.h>
#include "ehea.h"
#include "ehea_hw.h"
#include "ehea_hcall.h"
/* Some abbreviations used here:
*
* hcp_* - structures, variables and functions releated to Hypervisor Calls
*/
static inline u32 get_longbusy_msecs(int long_busy_ret_code)
{
switch (long_busy_ret_code) {
case H_LONG_BUSY_ORDER_1_MSEC:
return 1;
case H_LONG_BUSY_ORDER_10_MSEC:
return 10;
case H_LONG_BUSY_ORDER_100_MSEC:
return 100;
case H_LONG_BUSY_ORDER_1_SEC:
return 1000;
case H_LONG_BUSY_ORDER_10_SEC:
return 10000;
case H_LONG_BUSY_ORDER_100_SEC:
return 100000;
default:
return 1;
}
}
/* Notification Event Queue (NEQ) Entry bit masks */
#define NEQE_EVENT_CODE EHEA_BMASK_IBM(2, 7)
#define NEQE_PORTNUM EHEA_BMASK_IBM(32, 47)
#define NEQE_PORT_UP EHEA_BMASK_IBM(16, 16)
#define NEQE_EXTSWITCH_PORT_UP EHEA_BMASK_IBM(17, 17)
#define NEQE_EXTSWITCH_PRIMARY EHEA_BMASK_IBM(18, 18)
#define NEQE_PLID EHEA_BMASK_IBM(16, 47)
/* Notification Event Codes */
#define EHEA_EC_PORTSTATE_CHG 0x30
#define EHEA_EC_ADAPTER_MALFUNC 0x32
#define EHEA_EC_PORT_MALFUNC 0x33
/* Notification Event Log Register (NELR) bit masks */
#define NELR_PORT_MALFUNC EHEA_BMASK_IBM(61, 61)
#define NELR_ADAPTER_MALFUNC EHEA_BMASK_IBM(62, 62)
#define NELR_PORTSTATE_CHG EHEA_BMASK_IBM(63, 63)
static inline void hcp_epas_ctor(struct h_epas *epas, u64 paddr_kernel,
u64 paddr_user)
{
epas->kernel.addr = ioremap(paddr_kernel, PAGE_SIZE);
epas->user.addr = paddr_user;
}
static inline void hcp_epas_dtor(struct h_epas *epas)
{
if (epas->kernel.addr)
iounmap(epas->kernel.addr);
epas->user.addr = 0;
epas->kernel.addr = 0;
}
struct hcp_modify_qp_cb0 {
u64 qp_ctl_reg; /* 00 */
u32 max_swqe; /* 02 */
u32 max_rwqe; /* 03 */
u32 port_nb; /* 04 */
u32 reserved0; /* 05 */
u64 qp_aer; /* 06 */
u64 qp_tenure; /* 08 */
};
/* Hcall Query/Modify Queue Pair Control Block 0 Selection Mask Bits */
#define H_QPCB0_ALL EHEA_BMASK_IBM(0, 5)
#define H_QPCB0_QP_CTL_REG EHEA_BMASK_IBM(0, 0)
#define H_QPCB0_MAX_SWQE EHEA_BMASK_IBM(1, 1)
#define H_QPCB0_MAX_RWQE EHEA_BMASK_IBM(2, 2)
#define H_QPCB0_PORT_NB EHEA_BMASK_IBM(3, 3)
#define H_QPCB0_QP_AER EHEA_BMASK_IBM(4, 4)
#define H_QPCB0_QP_TENURE EHEA_BMASK_IBM(5, 5)
/* Queue Pair Control Register Status Bits */
#define H_QP_CR_ENABLED 0x8000000000000000ULL /* QP enabled */
/* QP States: */
#define H_QP_CR_STATE_RESET 0x0000010000000000ULL /* Reset */
#define H_QP_CR_STATE_INITIALIZED 0x0000020000000000ULL /* Initialized */
#define H_QP_CR_STATE_RDY2RCV 0x0000030000000000ULL /* Ready to recv */
#define H_QP_CR_STATE_RDY2SND 0x0000050000000000ULL /* Ready to send */
#define H_QP_CR_STATE_ERROR 0x0000800000000000ULL /* Error */
struct hcp_modify_qp_cb1 {
u32 qpn; /* 00 */
u32 qp_asyn_ev_eq_nb; /* 01 */
u64 sq_cq_handle; /* 02 */
u64 rq_cq_handle; /* 04 */
/* sgel = scatter gather element */
u32 sgel_nb_sq; /* 06 */
u32 sgel_nb_rq1; /* 07 */
u32 sgel_nb_rq2; /* 08 */
u32 sgel_nb_rq3; /* 09 */
};
/* Hcall Query/Modify Queue Pair Control Block 1 Selection Mask Bits */
#define H_QPCB1_ALL EHEA_BMASK_IBM(0, 7)
#define H_QPCB1_QPN EHEA_BMASK_IBM(0, 0)
#define H_QPCB1_ASYN_EV_EQ_NB EHEA_BMASK_IBM(1, 1)
#define H_QPCB1_SQ_CQ_HANDLE EHEA_BMASK_IBM(2, 2)
#define H_QPCB1_RQ_CQ_HANDLE EHEA_BMASK_IBM(3, 3)
#define H_QPCB1_SGEL_NB_SQ EHEA_BMASK_IBM(4, 4)
#define H_QPCB1_SGEL_NB_RQ1 EHEA_BMASK_IBM(5, 5)
#define H_QPCB1_SGEL_NB_RQ2 EHEA_BMASK_IBM(6, 6)
#define H_QPCB1_SGEL_NB_RQ3 EHEA_BMASK_IBM(7, 7)
struct hcp_query_ehea {
u32 cur_num_qps; /* 00 */
u32 cur_num_cqs; /* 01 */
u32 cur_num_eqs; /* 02 */
u32 cur_num_mrs; /* 03 */
u32 auth_level; /* 04 */
u32 max_num_qps; /* 05 */
u32 max_num_cqs; /* 06 */
u32 max_num_eqs; /* 07 */
u32 max_num_mrs; /* 08 */
u32 reserved0; /* 09 */
u32 int_clock_freq; /* 10 */
u32 max_num_pds; /* 11 */
u32 max_num_addr_handles; /* 12 */
u32 max_num_cqes; /* 13 */
u32 max_num_wqes; /* 14 */
u32 max_num_sgel_rq1wqe; /* 15 */
u32 max_num_sgel_rq2wqe; /* 16 */
u32 max_num_sgel_rq3wqe; /* 17 */
u32 mr_page_size; /* 18 */
u32 reserved1; /* 19 */
u64 max_mr_size; /* 20 */
u64 reserved2; /* 22 */
u32 num_ports; /* 24 */
u32 reserved3; /* 25 */
u32 reserved4; /* 26 */
u32 reserved5; /* 27 */
u64 max_mc_mac; /* 28 */
u64 ehea_cap; /* 30 */
u32 max_isn_per_eq; /* 32 */
u32 max_num_neq; /* 33 */
u64 max_num_vlan_ids; /* 34 */
u32 max_num_port_group; /* 36 */
u32 max_num_phys_port; /* 37 */
};
/* Hcall Query/Modify Port Control Block defines */
#define H_PORT_CB0 0
#define H_PORT_CB1 1
#define H_PORT_CB2 2
#define H_PORT_CB3 3
#define H_PORT_CB4 4
#define H_PORT_CB5 5
#define H_PORT_CB6 6
#define H_PORT_CB7 7
struct hcp_ehea_port_cb0 {
u64 port_mac_addr;
u64 port_rc;
u64 reserved0;
u32 port_op_state;
u32 port_speed;
u32 ext_swport_op_state;
u32 neg_tpf_prpf;
u32 num_default_qps;
u32 reserved1;
u64 default_qpn_arr[16];
};
/* Hcall Query/Modify Port Control Block 0 Selection Mask Bits */
#define H_PORT_CB0_ALL EHEA_BMASK_IBM(0, 7) /* Set all bits */
#define H_PORT_CB0_MAC EHEA_BMASK_IBM(0, 0) /* MAC address */
#define H_PORT_CB0_PRC EHEA_BMASK_IBM(1, 1) /* Port Recv Control */
#define H_PORT_CB0_DEFQPNARRAY EHEA_BMASK_IBM(7, 7) /* Default QPN Array */
/* Hcall Query Port: Returned port speed values */
#define H_SPEED_10M_H 1 /* 10 Mbps, Half Duplex */
#define H_SPEED_10M_F 2 /* 10 Mbps, Full Duplex */
#define H_SPEED_100M_H 3 /* 100 Mbps, Half Duplex */
#define H_SPEED_100M_F 4 /* 100 Mbps, Full Duplex */
#define H_SPEED_1G_F 6 /* 1 Gbps, Full Duplex */
#define H_SPEED_10G_F 8 /* 10 Gbps, Full Duplex */
/* Port Receive Control Status Bits */
#define PXLY_RC_VALID EHEA_BMASK_IBM(49, 49)
#define PXLY_RC_VLAN_XTRACT EHEA_BMASK_IBM(50, 50)
#define PXLY_RC_TCP_6_TUPLE EHEA_BMASK_IBM(51, 51)
#define PXLY_RC_UDP_6_TUPLE EHEA_BMASK_IBM(52, 52)
#define PXLY_RC_TCP_3_TUPLE EHEA_BMASK_IBM(53, 53)
#define PXLY_RC_TCP_2_TUPLE EHEA_BMASK_IBM(54, 54)
#define PXLY_RC_LLC_SNAP EHEA_BMASK_IBM(55, 55)
#define PXLY_RC_JUMBO_FRAME EHEA_BMASK_IBM(56, 56)
#define PXLY_RC_FRAG_IP_PKT EHEA_BMASK_IBM(57, 57)
#define PXLY_RC_TCP_UDP_CHKSUM EHEA_BMASK_IBM(58, 58)
#define PXLY_RC_IP_CHKSUM EHEA_BMASK_IBM(59, 59)
#define PXLY_RC_MAC_FILTER EHEA_BMASK_IBM(60, 60)
#define PXLY_RC_UNTAG_FILTER EHEA_BMASK_IBM(61, 61)
#define PXLY_RC_VLAN_TAG_FILTER EHEA_BMASK_IBM(62, 63)
#define PXLY_RC_VLAN_FILTER 2
#define PXLY_RC_VLAN_PERM 0
#define H_PORT_CB1_ALL 0x8000000000000000ULL
struct hcp_ehea_port_cb1 {
u64 vlan_filter[64];
};
#define H_PORT_CB2_ALL 0xFFE0000000000000ULL
struct hcp_ehea_port_cb2 {
u64 rxo;
u64 rxucp;
u64 rxufd;
u64 rxuerr;
u64 rxftl;
u64 rxmcp;
u64 rxbcp;
u64 txo;
u64 txucp;
u64 txmcp;
u64 txbcp;
};
struct hcp_ehea_port_cb3 {
u64 vlan_bc_filter[64];
u64 vlan_mc_filter[64];
u64 vlan_un_filter[64];
u64 port_mac_hash_array[64];
};
#define H_PORT_CB4_ALL 0xF000000000000000ULL
#define H_PORT_CB4_JUMBO 0x1000000000000000ULL
#define H_PORT_CB4_SPEED 0x8000000000000000ULL
struct hcp_ehea_port_cb4 {
u32 port_speed;
u32 pause_frame;
u32 ens_port_op_state;
u32 jumbo_frame;
u32 ens_port_wrap;
};
/* Hcall Query/Modify Port Control Block 5 Selection Mask Bits */
#define H_PORT_CB5_RCU 0x0001000000000000ULL
#define PXS_RCU EHEA_BMASK_IBM(61, 63)
struct hcp_ehea_port_cb5 {
u64 prc; /* 00 */
u64 uaa; /* 01 */
u64 macvc; /* 02 */
u64 xpcsc; /* 03 */
u64 xpcsp; /* 04 */
u64 pcsid; /* 05 */
u64 xpcsst; /* 06 */
u64 pthlb; /* 07 */
u64 pthrb; /* 08 */
u64 pqu; /* 09 */
u64 pqd; /* 10 */
u64 prt; /* 11 */
u64 wsth; /* 12 */
u64 rcb; /* 13 */
u64 rcm; /* 14 */
u64 rcu; /* 15 */
u64 macc; /* 16 */
u64 pc; /* 17 */
u64 pst; /* 18 */
u64 ducqpn; /* 19 */
u64 mcqpn; /* 20 */
u64 mma; /* 21 */
u64 pmc0h; /* 22 */
u64 pmc0l; /* 23 */
u64 lbc; /* 24 */
};
#define H_PORT_CB6_ALL 0xFFFFFE7FFFFF8000ULL
struct hcp_ehea_port_cb6 {
u64 rxo; /* 00 */
u64 rx64; /* 01 */
u64 rx65; /* 02 */
u64 rx128; /* 03 */
u64 rx256; /* 04 */
u64 rx512; /* 05 */
u64 rx1024; /* 06 */
u64 rxbfcs; /* 07 */
u64 rxime; /* 08 */
u64 rxrle; /* 09 */
u64 rxorle; /* 10 */
u64 rxftl; /* 11 */
u64 rxjab; /* 12 */
u64 rxse; /* 13 */
u64 rxce; /* 14 */
u64 rxrf; /* 15 */
u64 rxfrag; /* 16 */
u64 rxuoc; /* 17 */
u64 rxcpf; /* 18 */
u64 rxsb; /* 19 */
u64 rxfd; /* 20 */
u64 rxoerr; /* 21 */
u64 rxaln; /* 22 */
u64 ducqpn; /* 23 */
u64 reserved0; /* 24 */
u64 rxmcp; /* 25 */
u64 rxbcp; /* 26 */
u64 txmcp; /* 27 */
u64 txbcp; /* 28 */
u64 txo; /* 29 */
u64 tx64; /* 30 */
u64 tx65; /* 31 */
u64 tx128; /* 32 */
u64 tx256; /* 33 */
u64 tx512; /* 34 */
u64 tx1024; /* 35 */
u64 txbfcs; /* 36 */
u64 txcpf; /* 37 */
u64 txlf; /* 38 */
u64 txrf; /* 39 */
u64 txime; /* 40 */
u64 txsc; /* 41 */
u64 txmc; /* 42 */
u64 txsqe; /* 43 */
u64 txdef; /* 44 */
u64 txlcol; /* 45 */
u64 txexcol; /* 46 */
u64 txcse; /* 47 */
u64 txbor; /* 48 */
};
#define H_PORT_CB7_DUCQPN 0x8000000000000000ULL
struct hcp_ehea_port_cb7 {
u64 def_uc_qpn;
};
u64 ehea_h_query_ehea_qp(const u64 adapter_handle,
const u8 qp_category,
const u64 qp_handle, const u64 sel_mask,
void *cb_addr);
u64 ehea_h_modify_ehea_qp(const u64 adapter_handle,
const u8 cat,
const u64 qp_handle,
const u64 sel_mask,
void *cb_addr,
u64 * inv_attr_id,
u64 * proc_mask, u16 * out_swr, u16 * out_rwr);
u64 ehea_h_alloc_resource_eq(const u64 adapter_handle,
struct ehea_eq_attr *eq_attr, u64 * eq_handle);
u64 ehea_h_alloc_resource_cq(const u64 adapter_handle,
struct ehea_cq_attr *cq_attr,
u64 * cq_handle, struct h_epas *epas);
u64 ehea_h_alloc_resource_qp(const u64 adapter_handle,
struct ehea_qp_init_attr *init_attr,
const u32 pd,
u64 * qp_handle, struct h_epas *h_epas);
#define H_REG_RPAGE_PAGE_SIZE EHEA_BMASK_IBM(48,55)
#define H_REG_RPAGE_QT EHEA_BMASK_IBM(62,63)
u64 ehea_h_register_rpage(const u64 adapter_handle,
const u8 pagesize,
const u8 queue_type,
const u64 resource_handle,
const u64 log_pageaddr, u64 count);
#define H_DISABLE_GET_EHEA_WQE_P 1
#define H_DISABLE_GET_SQ_WQE_P 2
#define H_DISABLE_GET_RQC 3
u64 ehea_h_disable_and_get_hea(const u64 adapter_handle, const u64 qp_handle);
u64 ehea_h_free_resource(const u64 adapter_handle, const u64 res_handle);
u64 ehea_h_alloc_resource_mr(const u64 adapter_handle, const u64 vaddr,
const u64 length, const u32 access_ctrl,
const u32 pd, u64 * mr_handle, u32 * lkey);
u64 ehea_h_register_rpage_mr(const u64 adapter_handle, const u64 mr_handle,
const u8 pagesize, const u8 queue_type,
const u64 log_pageaddr, const u64 count);
u64 ehea_h_register_smr(const u64 adapter_handle, const u64 orig_mr_handle,
const u64 vaddr_in, const u32 access_ctrl, const u32 pd,
struct ehea_mr *mr);
u64 ehea_h_query_ehea(const u64 adapter_handle, void *cb_addr);
/* output param R5 */
#define H_MEHEAPORT_CAT EHEA_BMASK_IBM(40,47)
#define H_MEHEAPORT_PN EHEA_BMASK_IBM(48,63)
u64 ehea_h_query_ehea_port(const u64 adapter_handle, const u16 port_num,
const u8 cb_cat, const u64 select_mask,
void *cb_addr);
u64 ehea_h_modify_ehea_port(const u64 adapter_handle, const u16 port_num,
const u8 cb_cat, const u64 select_mask,
void *cb_addr);
#define H_REGBCMC_PN EHEA_BMASK_IBM(48, 63)
#define H_REGBCMC_REGTYPE EHEA_BMASK_IBM(61, 63)
#define H_REGBCMC_MACADDR EHEA_BMASK_IBM(16, 63)
#define H_REGBCMC_VLANID EHEA_BMASK_IBM(52, 63)
u64 ehea_h_reg_dereg_bcmc(const u64 adapter_handle, const u16 port_num,
const u8 reg_type, const u64 mc_mac_addr,
const u16 vlan_id, const u32 hcall_id);
u64 ehea_h_reset_events(const u64 adapter_handle, const u64 neq_handle,
const u64 event_mask);
#endif /* __EHEA_PHYP_H__ */

582
drivers/net/ehea/ehea_qmr.c Normal file
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@ -0,0 +1,582 @@
/*
* linux/drivers/net/ehea/ehea_qmr.c
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*
*
* 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 Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ehea.h"
#include "ehea_phyp.h"
#include "ehea_qmr.h"
static void *hw_qpageit_get_inc(struct hw_queue *queue)
{
void *retvalue = hw_qeit_get(queue);
queue->current_q_offset += queue->pagesize;
if (queue->current_q_offset > queue->queue_length) {
queue->current_q_offset -= queue->pagesize;
retvalue = NULL;
} else if (((u64) retvalue) & (EHEA_PAGESIZE-1)) {
ehea_error("not on pageboundary");
retvalue = NULL;
}
return retvalue;
}
static int hw_queue_ctor(struct hw_queue *queue, const u32 nr_of_pages,
const u32 pagesize, const u32 qe_size)
{
int pages_per_kpage = PAGE_SIZE / pagesize;
int i, k;
if ((pagesize > PAGE_SIZE) || (!pages_per_kpage)) {
ehea_error("pagesize conflict! kernel pagesize=%d, "
"ehea pagesize=%d", (int)PAGE_SIZE, (int)pagesize);
return -EINVAL;
}
queue->queue_length = nr_of_pages * pagesize;
queue->queue_pages = kmalloc(nr_of_pages * sizeof(void*), GFP_KERNEL);
if (!queue->queue_pages) {
ehea_error("no mem for queue_pages");
return -ENOMEM;
}
/*
* allocate pages for queue:
* outer loop allocates whole kernel pages (page aligned) and
* inner loop divides a kernel page into smaller hea queue pages
*/
i = 0;
while (i < nr_of_pages) {
u8 *kpage = (u8*)get_zeroed_page(GFP_KERNEL);
if (!kpage)
goto out_nomem;
for (k = 0; k < pages_per_kpage && i < nr_of_pages; k++) {
(queue->queue_pages)[i] = (struct ehea_page*)kpage;
kpage += pagesize;
i++;
}
}
queue->current_q_offset = 0;
queue->qe_size = qe_size;
queue->pagesize = pagesize;
queue->toggle_state = 1;
return 0;
out_nomem:
for (i = 0; i < nr_of_pages; i += pages_per_kpage) {
if (!(queue->queue_pages)[i])
break;
free_page((unsigned long)(queue->queue_pages)[i]);
}
return -ENOMEM;
}
static void hw_queue_dtor(struct hw_queue *queue)
{
int pages_per_kpage = PAGE_SIZE / queue->pagesize;
int i, nr_pages;
if (!queue || !queue->queue_pages)
return;
nr_pages = queue->queue_length / queue->pagesize;
for (i = 0; i < nr_pages; i += pages_per_kpage)
free_page((unsigned long)(queue->queue_pages)[i]);
kfree(queue->queue_pages);
}
struct ehea_cq *ehea_create_cq(struct ehea_adapter *adapter,
int nr_of_cqe, u64 eq_handle, u32 cq_token)
{
struct ehea_cq *cq;
struct h_epa epa;
u64 *cq_handle_ref, hret, rpage;
u32 act_nr_of_entries, act_pages, counter;
int ret;
void *vpage;
cq = kzalloc(sizeof(*cq), GFP_KERNEL);
if (!cq) {
ehea_error("no mem for cq");
goto out_nomem;
}
cq->attr.max_nr_of_cqes = nr_of_cqe;
cq->attr.cq_token = cq_token;
cq->attr.eq_handle = eq_handle;
cq->adapter = adapter;
cq_handle_ref = &cq->fw_handle;
act_nr_of_entries = 0;
act_pages = 0;
hret = ehea_h_alloc_resource_cq(adapter->handle, &cq->attr,
&cq->fw_handle, &cq->epas);
if (hret != H_SUCCESS) {
ehea_error("alloc_resource_cq failed");
goto out_freemem;
}
ret = hw_queue_ctor(&cq->hw_queue, cq->attr.nr_pages,
EHEA_PAGESIZE, sizeof(struct ehea_cqe));
if (ret)
goto out_freeres;
for (counter = 0; counter < cq->attr.nr_pages; counter++) {
vpage = hw_qpageit_get_inc(&cq->hw_queue);
if (!vpage) {
ehea_error("hw_qpageit_get_inc failed");
goto out_kill_hwq;
}
rpage = virt_to_abs(vpage);
hret = ehea_h_register_rpage(adapter->handle,
0, EHEA_CQ_REGISTER_ORIG,
cq->fw_handle, rpage, 1);
if (hret < H_SUCCESS) {
ehea_error("register_rpage_cq failed ehea_cq=%p "
"hret=%lx counter=%i act_pages=%i",
cq, hret, counter, cq->attr.nr_pages);
goto out_kill_hwq;
}
if (counter == (cq->attr.nr_pages - 1)) {
vpage = hw_qpageit_get_inc(&cq->hw_queue);
if ((hret != H_SUCCESS) || (vpage)) {
ehea_error("registration of pages not "
"complete hret=%lx\n", hret);
goto out_kill_hwq;
}
} else {
if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
ehea_error("CQ: registration of page failed "
"hret=%lx\n", hret);
goto out_kill_hwq;
}
}
}
hw_qeit_reset(&cq->hw_queue);
epa = cq->epas.kernel;
ehea_reset_cq_ep(cq);
ehea_reset_cq_n1(cq);
return cq;
out_kill_hwq:
hw_queue_dtor(&cq->hw_queue);
out_freeres:
ehea_h_free_resource(adapter->handle, cq->fw_handle);
out_freemem:
kfree(cq);
out_nomem:
return NULL;
}
int ehea_destroy_cq(struct ehea_cq *cq)
{
u64 adapter_handle, hret;
adapter_handle = cq->adapter->handle;
if (!cq)
return 0;
/* deregister all previous registered pages */
hret = ehea_h_free_resource(adapter_handle, cq->fw_handle);
if (hret != H_SUCCESS) {
ehea_error("destroy CQ failed");
return -EIO;
}
hw_queue_dtor(&cq->hw_queue);
kfree(cq);
return 0;
}
struct ehea_eq *ehea_create_eq(struct ehea_adapter *adapter,
const enum ehea_eq_type type,
const u32 max_nr_of_eqes, const u8 eqe_gen)
{
int ret, i;
u64 hret, rpage;
void *vpage;
struct ehea_eq *eq;
eq = kzalloc(sizeof(*eq), GFP_KERNEL);
if (!eq) {
ehea_error("no mem for eq");
return NULL;
}
eq->adapter = adapter;
eq->attr.type = type;
eq->attr.max_nr_of_eqes = max_nr_of_eqes;
eq->attr.eqe_gen = eqe_gen;
spin_lock_init(&eq->spinlock);
hret = ehea_h_alloc_resource_eq(adapter->handle,
&eq->attr, &eq->fw_handle);
if (hret != H_SUCCESS) {
ehea_error("alloc_resource_eq failed");
goto out_freemem;
}
ret = hw_queue_ctor(&eq->hw_queue, eq->attr.nr_pages,
EHEA_PAGESIZE, sizeof(struct ehea_eqe));
if (ret) {
ehea_error("can't allocate eq pages");
goto out_freeres;
}
for (i = 0; i < eq->attr.nr_pages; i++) {
vpage = hw_qpageit_get_inc(&eq->hw_queue);
if (!vpage) {
ehea_error("hw_qpageit_get_inc failed");
hret = H_RESOURCE;
goto out_kill_hwq;
}
rpage = virt_to_abs(vpage);
hret = ehea_h_register_rpage(adapter->handle, 0,
EHEA_EQ_REGISTER_ORIG,
eq->fw_handle, rpage, 1);
if (i == (eq->attr.nr_pages - 1)) {
/* last page */
vpage = hw_qpageit_get_inc(&eq->hw_queue);
if ((hret != H_SUCCESS) || (vpage)) {
goto out_kill_hwq;
}
} else {
if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
goto out_kill_hwq;
}
}
}
hw_qeit_reset(&eq->hw_queue);
return eq;
out_kill_hwq:
hw_queue_dtor(&eq->hw_queue);
out_freeres:
ehea_h_free_resource(adapter->handle, eq->fw_handle);
out_freemem:
kfree(eq);
return NULL;
}
struct ehea_eqe *ehea_poll_eq(struct ehea_eq *eq)
{
struct ehea_eqe *eqe;
unsigned long flags;
spin_lock_irqsave(&eq->spinlock, flags);
eqe = (struct ehea_eqe*)hw_eqit_eq_get_inc_valid(&eq->hw_queue);
spin_unlock_irqrestore(&eq->spinlock, flags);
return eqe;
}
int ehea_destroy_eq(struct ehea_eq *eq)
{
u64 hret;
unsigned long flags;
if (!eq)
return 0;
spin_lock_irqsave(&eq->spinlock, flags);
hret = ehea_h_free_resource(eq->adapter->handle, eq->fw_handle);
spin_unlock_irqrestore(&eq->spinlock, flags);
if (hret != H_SUCCESS) {
ehea_error("destroy_eq failed");
return -EIO;
}
hw_queue_dtor(&eq->hw_queue);
kfree(eq);
return 0;
}
/**
* allocates memory for a queue and registers pages in phyp
*/
int ehea_qp_alloc_register(struct ehea_qp *qp, struct hw_queue *hw_queue,
int nr_pages, int wqe_size, int act_nr_sges,
struct ehea_adapter *adapter, int h_call_q_selector)
{
u64 hret, rpage;
int ret, cnt;
void *vpage;
ret = hw_queue_ctor(hw_queue, nr_pages, EHEA_PAGESIZE, wqe_size);
if (ret)
return ret;
for (cnt = 0; cnt < nr_pages; cnt++) {
vpage = hw_qpageit_get_inc(hw_queue);
if (!vpage) {
ehea_error("hw_qpageit_get_inc failed");
goto out_kill_hwq;
}
rpage = virt_to_abs(vpage);
hret = ehea_h_register_rpage(adapter->handle,
0, h_call_q_selector,
qp->fw_handle, rpage, 1);
if (hret < H_SUCCESS) {
ehea_error("register_rpage_qp failed");
goto out_kill_hwq;
}
}
hw_qeit_reset(hw_queue);
return 0;
out_kill_hwq:
hw_queue_dtor(hw_queue);
return -EIO;
}
static inline u32 map_wqe_size(u8 wqe_enc_size)
{
return 128 << wqe_enc_size;
}
struct ehea_qp *ehea_create_qp(struct ehea_adapter *adapter,
u32 pd, struct ehea_qp_init_attr *init_attr)
{
int ret;
u64 hret;
struct ehea_qp *qp;
u32 wqe_size_in_bytes_sq, wqe_size_in_bytes_rq1;
u32 wqe_size_in_bytes_rq2, wqe_size_in_bytes_rq3;
qp = kzalloc(sizeof(*qp), GFP_KERNEL);
if (!qp) {
ehea_error("no mem for qp");
return NULL;
}
qp->adapter = adapter;
hret = ehea_h_alloc_resource_qp(adapter->handle, init_attr, pd,
&qp->fw_handle, &qp->epas);
if (hret != H_SUCCESS) {
ehea_error("ehea_h_alloc_resource_qp failed");
goto out_freemem;
}
wqe_size_in_bytes_sq = map_wqe_size(init_attr->act_wqe_size_enc_sq);
wqe_size_in_bytes_rq1 = map_wqe_size(init_attr->act_wqe_size_enc_rq1);
wqe_size_in_bytes_rq2 = map_wqe_size(init_attr->act_wqe_size_enc_rq2);
wqe_size_in_bytes_rq3 = map_wqe_size(init_attr->act_wqe_size_enc_rq3);
ret = ehea_qp_alloc_register(qp, &qp->hw_squeue, init_attr->nr_sq_pages,
wqe_size_in_bytes_sq,
init_attr->act_wqe_size_enc_sq, adapter,
0);
if (ret) {
ehea_error("can't register for sq ret=%x", ret);
goto out_freeres;
}
ret = ehea_qp_alloc_register(qp, &qp->hw_rqueue1,
init_attr->nr_rq1_pages,
wqe_size_in_bytes_rq1,
init_attr->act_wqe_size_enc_rq1,
adapter, 1);
if (ret) {
ehea_error("can't register for rq1 ret=%x", ret);
goto out_kill_hwsq;
}
if (init_attr->rq_count > 1) {
ret = ehea_qp_alloc_register(qp, &qp->hw_rqueue2,
init_attr->nr_rq2_pages,
wqe_size_in_bytes_rq2,
init_attr->act_wqe_size_enc_rq2,
adapter, 2);
if (ret) {
ehea_error("can't register for rq2 ret=%x", ret);
goto out_kill_hwr1q;
}
}
if (init_attr->rq_count > 2) {
ret = ehea_qp_alloc_register(qp, &qp->hw_rqueue3,
init_attr->nr_rq3_pages,
wqe_size_in_bytes_rq3,
init_attr->act_wqe_size_enc_rq3,
adapter, 3);
if (ret) {
ehea_error("can't register for rq3 ret=%x", ret);
goto out_kill_hwr2q;
}
}
qp->init_attr = *init_attr;
return qp;
out_kill_hwr2q:
hw_queue_dtor(&qp->hw_rqueue2);
out_kill_hwr1q:
hw_queue_dtor(&qp->hw_rqueue1);
out_kill_hwsq:
hw_queue_dtor(&qp->hw_squeue);
out_freeres:
ehea_h_disable_and_get_hea(adapter->handle, qp->fw_handle);
ehea_h_free_resource(adapter->handle, qp->fw_handle);
out_freemem:
kfree(qp);
return NULL;
}
int ehea_destroy_qp(struct ehea_qp *qp)
{
u64 hret;
struct ehea_qp_init_attr *qp_attr = &qp->init_attr;
if (!qp)
return 0;
hret = ehea_h_free_resource(qp->adapter->handle, qp->fw_handle);
if (hret != H_SUCCESS) {
ehea_error("destroy_qp failed");
return -EIO;
}
hw_queue_dtor(&qp->hw_squeue);
hw_queue_dtor(&qp->hw_rqueue1);
if (qp_attr->rq_count > 1)
hw_queue_dtor(&qp->hw_rqueue2);
if (qp_attr->rq_count > 2)
hw_queue_dtor(&qp->hw_rqueue3);
kfree(qp);
return 0;
}
int ehea_reg_mr_adapter(struct ehea_adapter *adapter)
{
int i, k, ret;
u64 hret, pt_abs, start, end, nr_pages;
u32 acc_ctrl = EHEA_MR_ACC_CTRL;
u64 *pt;
start = KERNELBASE;
end = (u64)high_memory;
nr_pages = (end - start) / PAGE_SIZE;
pt = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (!pt) {
ehea_error("no mem");
ret = -ENOMEM;
goto out;
}
pt_abs = virt_to_abs(pt);
hret = ehea_h_alloc_resource_mr(adapter->handle, start, end - start,
acc_ctrl, adapter->pd,
&adapter->mr.handle, &adapter->mr.lkey);
if (hret != H_SUCCESS) {
ehea_error("alloc_resource_mr failed");
ret = -EIO;
goto out;
}
adapter->mr.vaddr = KERNELBASE;
k = 0;
while (nr_pages > 0) {
if (nr_pages > 1) {
u64 num_pages = min(nr_pages, (u64)512);
for (i = 0; i < num_pages; i++)
pt[i] = virt_to_abs((void*)(((u64)start)
+ ((k++) *
PAGE_SIZE)));
hret = ehea_h_register_rpage_mr(adapter->handle,
adapter->mr.handle, 0,
0, (u64)pt_abs,
num_pages);
nr_pages -= num_pages;
} else {
u64 abs_adr = virt_to_abs((void*)(((u64)start)
+ (k * PAGE_SIZE)));
hret = ehea_h_register_rpage_mr(adapter->handle,
adapter->mr.handle, 0,
0, abs_adr,1);
nr_pages--;
}
if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED)) {
ehea_h_free_resource(adapter->handle,
adapter->mr.handle);
ehea_error("register_rpage_mr failed: hret = %lX",
hret);
ret = -EIO;
goto out;
}
}
if (hret != H_SUCCESS) {
ehea_h_free_resource(adapter->handle, adapter->mr.handle);
ehea_error("register_rpage failed for last page: hret = %lX",
hret);
ret = -EIO;
goto out;
}
ret = 0;
out:
kfree(pt);
return ret;
}

358
drivers/net/ehea/ehea_qmr.h Normal file
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@ -0,0 +1,358 @@
/*
* linux/drivers/net/ehea/ehea_qmr.h
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*
*
* 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 Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __EHEA_QMR_H__
#define __EHEA_QMR_H__
#include "ehea.h"
#include "ehea_hw.h"
/*
* page size of ehea hardware queues
*/
#define EHEA_PAGESHIFT 12
#define EHEA_PAGESIZE 4096UL
/* Some abbreviations used here:
*
* WQE - Work Queue Entry
* SWQE - Send Work Queue Entry
* RWQE - Receive Work Queue Entry
* CQE - Completion Queue Entry
* EQE - Event Queue Entry
* MR - Memory Region
*/
/* Use of WR_ID field for EHEA */
#define EHEA_WR_ID_COUNT EHEA_BMASK_IBM(0, 19)
#define EHEA_WR_ID_TYPE EHEA_BMASK_IBM(20, 23)
#define EHEA_SWQE2_TYPE 0x1
#define EHEA_SWQE3_TYPE 0x2
#define EHEA_RWQE2_TYPE 0x3
#define EHEA_RWQE3_TYPE 0x4
#define EHEA_WR_ID_INDEX EHEA_BMASK_IBM(24, 47)
#define EHEA_WR_ID_REFILL EHEA_BMASK_IBM(48, 63)
struct ehea_vsgentry {
u64 vaddr;
u32 l_key;
u32 len;
};
/* maximum number of sg entries allowed in a WQE */
#define EHEA_MAX_WQE_SG_ENTRIES 252
#define SWQE2_MAX_IMM (0xD0 - 0x30)
#define SWQE3_MAX_IMM 224
/* tx control flags for swqe */
#define EHEA_SWQE_CRC 0x8000
#define EHEA_SWQE_IP_CHECKSUM 0x4000
#define EHEA_SWQE_TCP_CHECKSUM 0x2000
#define EHEA_SWQE_TSO 0x1000
#define EHEA_SWQE_SIGNALLED_COMPLETION 0x0800
#define EHEA_SWQE_VLAN_INSERT 0x0400
#define EHEA_SWQE_IMM_DATA_PRESENT 0x0200
#define EHEA_SWQE_DESCRIPTORS_PRESENT 0x0100
#define EHEA_SWQE_WRAP_CTL_REC 0x0080
#define EHEA_SWQE_WRAP_CTL_FORCE 0x0040
#define EHEA_SWQE_BIND 0x0020
#define EHEA_SWQE_PURGE 0x0010
/* sizeof(struct ehea_swqe) less the union */
#define SWQE_HEADER_SIZE 32
struct ehea_swqe {
u64 wr_id;
u16 tx_control;
u16 vlan_tag;
u8 reserved1;
u8 ip_start;
u8 ip_end;
u8 immediate_data_length;
u8 tcp_offset;
u8 reserved2;
u16 tcp_end;
u8 wrap_tag;
u8 descriptors; /* number of valid descriptors in WQE */
u16 reserved3;
u16 reserved4;
u16 mss;
u32 reserved5;
union {
/* Send WQE Format 1 */
struct {
struct ehea_vsgentry sg_list[EHEA_MAX_WQE_SG_ENTRIES];
} no_immediate_data;
/* Send WQE Format 2 */
struct {
struct ehea_vsgentry sg_entry;
/* 0x30 */
u8 immediate_data[SWQE2_MAX_IMM];
/* 0xd0 */
struct ehea_vsgentry sg_list[EHEA_MAX_WQE_SG_ENTRIES-1];
} immdata_desc __attribute__ ((packed));
/* Send WQE Format 3 */
struct {
u8 immediate_data[SWQE3_MAX_IMM];
} immdata_nodesc;
} u;
};
struct ehea_rwqe {
u64 wr_id; /* work request ID */
u8 reserved1[5];
u8 data_segments;
u16 reserved2;
u64 reserved3;
u64 reserved4;
struct ehea_vsgentry sg_list[EHEA_MAX_WQE_SG_ENTRIES];
};
#define EHEA_CQE_VLAN_TAG_XTRACT 0x0400
#define EHEA_CQE_TYPE_RQ 0x60
#define EHEA_CQE_STAT_ERR_MASK 0x721F
#define EHEA_CQE_STAT_FAT_ERR_MASK 0x1F
#define EHEA_CQE_STAT_ERR_TCP 0x4000
struct ehea_cqe {
u64 wr_id; /* work request ID from WQE */
u8 type;
u8 valid;
u16 status;
u16 reserved1;
u16 num_bytes_transfered;
u16 vlan_tag;
u16 inet_checksum_value;
u8 reserved2;
u8 header_length;
u16 reserved3;
u16 page_offset;
u16 wqe_count;
u32 qp_token;
u32 timestamp;
u32 reserved4;
u64 reserved5[3];
};
#define EHEA_EQE_VALID EHEA_BMASK_IBM(0, 0)
#define EHEA_EQE_IS_CQE EHEA_BMASK_IBM(1, 1)
#define EHEA_EQE_IDENTIFIER EHEA_BMASK_IBM(2, 7)
#define EHEA_EQE_QP_CQ_NUMBER EHEA_BMASK_IBM(8, 31)
#define EHEA_EQE_QP_TOKEN EHEA_BMASK_IBM(32, 63)
#define EHEA_EQE_CQ_TOKEN EHEA_BMASK_IBM(32, 63)
#define EHEA_EQE_KEY EHEA_BMASK_IBM(32, 63)
#define EHEA_EQE_PORT_NUMBER EHEA_BMASK_IBM(56, 63)
#define EHEA_EQE_EQ_NUMBER EHEA_BMASK_IBM(48, 63)
#define EHEA_EQE_SM_ID EHEA_BMASK_IBM(48, 63)
#define EHEA_EQE_SM_MECH_NUMBER EHEA_BMASK_IBM(48, 55)
#define EHEA_EQE_SM_PORT_NUMBER EHEA_BMASK_IBM(56, 63)
struct ehea_eqe {
u64 entry;
};
static inline void *hw_qeit_calc(struct hw_queue *queue, u64 q_offset)
{
struct ehea_page *current_page;
if (q_offset >= queue->queue_length)
q_offset -= queue->queue_length;
current_page = (queue->queue_pages)[q_offset >> EHEA_PAGESHIFT];
return &current_page->entries[q_offset & (EHEA_PAGESIZE - 1)];
}
static inline void *hw_qeit_get(struct hw_queue *queue)
{
return hw_qeit_calc(queue, queue->current_q_offset);
}
static inline void hw_qeit_inc(struct hw_queue *queue)
{
queue->current_q_offset += queue->qe_size;
if (queue->current_q_offset >= queue->queue_length) {
queue->current_q_offset = 0;
/* toggle the valid flag */
queue->toggle_state = (~queue->toggle_state) & 1;
}
}
static inline void *hw_qeit_get_inc(struct hw_queue *queue)
{
void *retvalue = hw_qeit_get(queue);
hw_qeit_inc(queue);
return retvalue;
}
static inline void *hw_qeit_get_inc_valid(struct hw_queue *queue)
{
struct ehea_cqe *retvalue = hw_qeit_get(queue);
u8 valid = retvalue->valid;
void *pref;
if ((valid >> 7) == (queue->toggle_state & 1)) {
/* this is a good one */
hw_qeit_inc(queue);
pref = hw_qeit_calc(queue, queue->current_q_offset);
prefetch(pref);
prefetch(pref + 128);
} else
retvalue = NULL;
return retvalue;
}
static inline void *hw_qeit_get_valid(struct hw_queue *queue)
{
struct ehea_cqe *retvalue = hw_qeit_get(queue);
void *pref;
u8 valid;
pref = hw_qeit_calc(queue, queue->current_q_offset);
prefetch(pref);
prefetch(pref + 128);
prefetch(pref + 256);
valid = retvalue->valid;
if (!((valid >> 7) == (queue->toggle_state & 1)))
retvalue = NULL;
return retvalue;
}
static inline void *hw_qeit_reset(struct hw_queue *queue)
{
queue->current_q_offset = 0;
return hw_qeit_get(queue);
}
static inline void *hw_qeit_eq_get_inc(struct hw_queue *queue)
{
u64 last_entry_in_q = queue->queue_length - queue->qe_size;
void *retvalue;
retvalue = hw_qeit_get(queue);
queue->current_q_offset += queue->qe_size;
if (queue->current_q_offset > last_entry_in_q) {
queue->current_q_offset = 0;
queue->toggle_state = (~queue->toggle_state) & 1;
}
return retvalue;
}
static inline void *hw_eqit_eq_get_inc_valid(struct hw_queue *queue)
{
void *retvalue = hw_qeit_get(queue);
u32 qe = *(u8*)retvalue;
if ((qe >> 7) == (queue->toggle_state & 1))
hw_qeit_eq_get_inc(queue);
else
retvalue = NULL;
return retvalue;
}
static inline struct ehea_rwqe *ehea_get_next_rwqe(struct ehea_qp *qp,
int rq_nr)
{
struct hw_queue *queue;
if (rq_nr == 1)
queue = &qp->hw_rqueue1;
else if (rq_nr == 2)
queue = &qp->hw_rqueue2;
else
queue = &qp->hw_rqueue3;
return hw_qeit_get_inc(queue);
}
static inline struct ehea_swqe *ehea_get_swqe(struct ehea_qp *my_qp,
int *wqe_index)
{
struct hw_queue *queue = &my_qp->hw_squeue;
struct ehea_swqe *wqe_p;
*wqe_index = (queue->current_q_offset) >> (7 + EHEA_SG_SQ);
wqe_p = hw_qeit_get_inc(&my_qp->hw_squeue);
return wqe_p;
}
static inline void ehea_post_swqe(struct ehea_qp *my_qp, struct ehea_swqe *swqe)
{
iosync();
ehea_update_sqa(my_qp, 1);
}
static inline struct ehea_cqe *ehea_poll_rq1(struct ehea_qp *qp, int *wqe_index)
{
struct hw_queue *queue = &qp->hw_rqueue1;
*wqe_index = (queue->current_q_offset) >> (7 + EHEA_SG_RQ1);
return hw_qeit_get_valid(queue);
}
static inline void ehea_inc_rq1(struct ehea_qp *qp)
{
hw_qeit_inc(&qp->hw_rqueue1);
}
static inline struct ehea_cqe *ehea_poll_cq(struct ehea_cq *my_cq)
{
return hw_qeit_get_inc_valid(&my_cq->hw_queue);
}
#define EHEA_CQ_REGISTER_ORIG 0
#define EHEA_EQ_REGISTER_ORIG 0
enum ehea_eq_type {
EHEA_EQ = 0, /* event queue */
EHEA_NEQ /* notification event queue */
};
struct ehea_eq *ehea_create_eq(struct ehea_adapter *adapter,
enum ehea_eq_type type,
const u32 length, const u8 eqe_gen);
int ehea_destroy_eq(struct ehea_eq *eq);
struct ehea_eqe *ehea_poll_eq(struct ehea_eq *eq);
struct ehea_cq *ehea_create_cq(struct ehea_adapter *adapter, int cqe,
u64 eq_handle, u32 cq_token);
int ehea_destroy_cq(struct ehea_cq *cq);
struct ehea_qp *ehea_create_qp(struct ehea_adapter * adapter, u32 pd,
struct ehea_qp_init_attr *init_attr);
int ehea_destroy_qp(struct ehea_qp *qp);
int ehea_reg_mr_adapter(struct ehea_adapter *adapter);
#endif /* __EHEA_QMR_H__ */