* [PATCH net-next 1/2] ehea: remove the ehea driver
2026-06-29 21:13 [PATCH net-next 0/2] net: remove the orphaned IBM eHEA driver David Christensen
@ 2026-06-29 21:13 ` David Christensen
2026-06-29 21:13 ` [PATCH net-next 2/2] powerpc: remove ehea driver references David Christensen
1 sibling, 0 replies; 3+ messages in thread
From: David Christensen @ 2026-06-29 21:13 UTC (permalink / raw)
To: David S . Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni,
Michael Ellerman, Nicholas Piggin, Christophe Leroy
Cc: netdev, linuxppc-dev, linux-kernel, David Christensen
The IBM eHEA (Ethernet Host Ethernet Adapter) driver has been orphaned
since April 2024 with no active maintainer. The hardware was last
supported on IBM POWER7 systems which reached end-of-support in
December 2020. The driver has received no functional updates since
October 2022, with all subsequent changes being mechanical API
migrations affecting the entire kernel tree.
A search of lore.kernel.org for the last 24 months reveals no user
reports, no objections to the orphan status, and no maintenance
discussions indicating active hardware deployment.
The code is preserved in git history and can be restored if a
maintainer steps forward to take ownership.
Signed-off-by: David Christensen <drc@linux.ibm.com>
---
MAINTAINERS | 5 -
drivers/net/ethernet/ibm/Kconfig | 9 -
drivers/net/ethernet/ibm/Makefile | 1 -
drivers/net/ethernet/ibm/ehea/Makefile | 7 -
drivers/net/ethernet/ibm/ehea/ehea.h | 477 ---
drivers/net/ethernet/ibm/ehea/ehea_ethtool.c | 277 --
drivers/net/ethernet/ibm/ehea/ehea_hw.h | 253 --
drivers/net/ethernet/ibm/ehea/ehea_main.c | 3581 ------------------
drivers/net/ethernet/ibm/ehea/ehea_phyp.c | 612 ---
drivers/net/ethernet/ibm/ehea/ehea_phyp.h | 433 ---
drivers/net/ethernet/ibm/ehea/ehea_qmr.c | 999 -----
drivers/net/ethernet/ibm/ehea/ehea_qmr.h | 390 --
12 files changed, 7044 deletions(-)
delete mode 100644 drivers/net/ethernet/ibm/ehea/Makefile
delete mode 100644 drivers/net/ethernet/ibm/ehea/ehea.h
delete mode 100644 drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
delete mode 100644 drivers/net/ethernet/ibm/ehea/ehea_hw.h
delete mode 100644 drivers/net/ethernet/ibm/ehea/ehea_main.c
delete mode 100644 drivers/net/ethernet/ibm/ehea/ehea_phyp.c
delete mode 100644 drivers/net/ethernet/ibm/ehea/ehea_phyp.h
delete mode 100644 drivers/net/ethernet/ibm/ehea/ehea_qmr.c
delete mode 100644 drivers/net/ethernet/ibm/ehea/ehea_qmr.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 15011f5752a9..ee4ee7b8e947 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9498,11 +9498,6 @@ S: Orphan
W: http://aeschi.ch.eu.org/efs/
F: fs/efs/
-EHEA (IBM pSeries eHEA 10Gb ethernet adapter) DRIVER
-L: netdev@vger.kernel.org
-S: Orphan
-F: drivers/net/ethernet/ibm/ehea/
-
ELM327 CAN NETWORK DRIVER
M: Max Staudt <max@enpas.org>
L: linux-can@vger.kernel.org
diff --git a/drivers/net/ethernet/ibm/Kconfig b/drivers/net/ethernet/ibm/Kconfig
index 4f4b23465c47..8e55faac2035 100644
--- a/drivers/net/ethernet/ibm/Kconfig
+++ b/drivers/net/ethernet/ibm/Kconfig
@@ -42,15 +42,6 @@ config IBMVETH_KUNIT_TEST
source "drivers/net/ethernet/ibm/emac/Kconfig"
-config EHEA
- tristate "eHEA Ethernet support"
- depends on IBMEBUS && SPARSEMEM
- 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 IBMVNIC
tristate "IBM Virtual NIC support"
depends on PPC_PSERIES
diff --git a/drivers/net/ethernet/ibm/Makefile b/drivers/net/ethernet/ibm/Makefile
index 1d17d0c33d4d..c7e5d891c946 100644
--- a/drivers/net/ethernet/ibm/Makefile
+++ b/drivers/net/ethernet/ibm/Makefile
@@ -6,4 +6,3 @@
obj-$(CONFIG_IBMVETH) += ibmveth.o
obj-$(CONFIG_IBMVNIC) += ibmvnic.o
obj-$(CONFIG_IBM_EMAC) += emac/
-obj-$(CONFIG_EHEA) += ehea/
diff --git a/drivers/net/ethernet/ibm/ehea/Makefile b/drivers/net/ethernet/ibm/ehea/Makefile
deleted file mode 100644
index 9e1e5c7aafe2..000000000000
--- a/drivers/net/ethernet/ibm/ehea/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# 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
-obj-$(CONFIG_EHEA) += ehea.o
-
diff --git a/drivers/net/ethernet/ibm/ehea/ehea.h b/drivers/net/ethernet/ibm/ehea/ehea.h
deleted file mode 100644
index 208c440a602b..000000000000
--- a/drivers/net/ethernet/ibm/ehea/ehea.h
+++ /dev/null
@@ -1,477 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * linux/drivers/net/ethernet/ibm/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>
- */
-
-#ifndef __EHEA_H__
-#define __EHEA_H__
-
-#include <linux/module.h>
-#include <linux/ethtool.h>
-#include <linux/vmalloc.h>
-#include <linux/if_vlan.h>
-#include <linux/platform_device.h>
-
-#include <asm/ibmebus.h>
-#include <asm/io.h>
-
-#define DRV_NAME "ehea"
-#define DRV_VERSION "EHEA_0107"
-
-/* eHEA capability flags */
-#define DLPAR_PORT_ADD_REM 1
-#define DLPAR_MEM_ADD 2
-#define DLPAR_MEM_REM 4
-#define EHEA_CAPABILITIES (DLPAR_PORT_ADD_REM | DLPAR_MEM_ADD | DLPAR_MEM_REM)
-
-#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_SMALL_QUEUES
-
-#ifdef EHEA_SMALL_QUEUES
-#define EHEA_MAX_CQE_COUNT 1023
-#define EHEA_DEF_ENTRIES_SQ 1023
-#define EHEA_DEF_ENTRIES_RQ1 1023
-#define EHEA_DEF_ENTRIES_RQ2 1023
-#define EHEA_DEF_ENTRIES_RQ3 511
-#else
-#define EHEA_MAX_CQE_COUNT 4080
-#define EHEA_DEF_ENTRIES_SQ 4080
-#define EHEA_DEF_ENTRIES_RQ1 8160
-#define EHEA_DEF_ENTRIES_RQ2 2040
-#define EHEA_DEF_ENTRIES_RQ3 2040
-#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 2048
-#define EHEA_L_PKT_SIZE 256 /* low latency */
-
-/* Send completion signaling */
-
-/* Protection Domain Identifier */
-#define EHEA_PD_ID 0xaabcdeff
-
-#define EHEA_RQ2_THRESHOLD 1
-#define EHEA_RQ3_THRESHOLD 4 /* use RQ3 threshold of 2048 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
-
-#define EHEA_CACHE_LINE 128
-
-/* Memory Regions */
-#define EHEA_MR_ACC_CTRL 0x00800000
-
-#define EHEA_BUSMAP_START 0x8000000000000000ULL
-#define EHEA_INVAL_ADDR 0xFFFFFFFFFFFFFFFFULL
-#define EHEA_DIR_INDEX_SHIFT 13 /* 8k Entries in 64k block */
-#define EHEA_TOP_INDEX_SHIFT (EHEA_DIR_INDEX_SHIFT * 2)
-#define EHEA_MAP_ENTRIES (1 << EHEA_DIR_INDEX_SHIFT)
-#define EHEA_MAP_SIZE (0x10000) /* currently fixed map size */
-#define EHEA_INDEX_MASK (EHEA_MAP_ENTRIES - 1)
-
-
-#define EHEA_WATCH_DOG_TIMEOUT 10*HZ
-
-/* utility functions */
-
-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 */
-};
-
-/*
- * Memory map data structures
- */
-struct ehea_dir_bmap
-{
- u64 ent[EHEA_MAP_ENTRIES];
-};
-struct ehea_top_bmap
-{
- struct ehea_dir_bmap *dir[EHEA_MAP_ENTRIES];
-};
-struct ehea_bmap
-{
- struct ehea_top_bmap *top[EHEA_MAP_ENTRIES];
-};
-
-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 parameter
- */
-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 {
- struct ehea_adapter *adapter;
- u64 handle;
- u64 vaddr;
- u32 lkey;
-};
-
-/*
- * Port state information
- */
-struct port_stats {
- int poll_receive_errors;
- int queue_stopped;
- int err_tcp_cksum;
- int err_ip_cksum;
- int err_frame_crc;
-};
-
-#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 napi_struct napi;
- struct port_stats p_stats;
- struct ehea_mr send_mr; /* send memory region */
- struct ehea_mr recv_mr; /* receive memory region */
- 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 *eq;
- 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;
- int sq_skba_size;
- int swqe_refill_th;
- atomic_t swqe_avail;
- int swqe_ll_count;
- u32 swqe_id_counter;
- u64 tx_packets;
- u64 tx_bytes;
- u64 rx_packets;
- u64 rx_bytes;
- int sq_restart_flag;
-};
-
-
-#define EHEA_MAX_PORTS 16
-
-#define EHEA_NUM_PORTRES_FW_HANDLES 6 /* QP handle, SendCQ handle,
- RecvCQ handle, EQ handle,
- SendMR handle, RecvMR handle */
-#define EHEA_NUM_PORT_FW_HANDLES 1 /* EQ handle */
-#define EHEA_NUM_ADAPTER_FW_HANDLES 2 /* MR handle, NEQ handle */
-
-struct ehea_adapter {
- u64 handle;
- struct platform_device *ofdev;
- struct ehea_port *port[EHEA_MAX_PORTS];
- struct ehea_eq *neq; /* notification event queue */
- struct tasklet_struct neq_tasklet;
- struct ehea_mr mr;
- u32 pd; /* protection domain */
- u64 max_mc_mac; /* max number of multicast mac addresses */
- int active_ports;
- struct list_head list;
-};
-
-
-struct ehea_mc_list {
- struct list_head list;
- u64 macaddr;
-};
-
-/* kdump support */
-struct ehea_fw_handle_entry {
- u64 adh; /* Adapter Handle */
- u64 fwh; /* Firmware Handle */
-};
-
-struct ehea_fw_handle_array {
- struct ehea_fw_handle_entry *arr;
- int num_entries;
- struct mutex lock;
-};
-
-struct ehea_bcmc_reg_entry {
- u64 adh; /* Adapter Handle */
- u32 port_id; /* Logical Port Id */
- u8 reg_type; /* Registration Type */
- u64 macaddr;
-};
-
-struct ehea_bcmc_reg_array {
- struct ehea_bcmc_reg_entry *arr;
- int num_entries;
- spinlock_t lock;
-};
-
-#define EHEA_PORT_UP 1
-#define EHEA_PORT_DOWN 0
-#define EHEA_PHY_LINK_UP 1
-#define EHEA_PHY_LINK_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 rtnl_link_stats64 stats;
- struct ehea_port_res port_res[EHEA_MAX_PORT_RES];
- struct platform_device ofdev; /* Open Firmware Device */
- struct ehea_mc_list *mc_list; /* Multicast MAC addresses */
- struct ehea_eq *qp_eq;
- struct work_struct reset_task;
- struct delayed_work stats_work;
- struct mutex port_lock;
- char int_aff_name[EHEA_IRQ_NAME_SIZE];
- int allmulti; /* Indicates IFF_ALLMULTI state */
- int promisc; /* Indicates IFF_PROMISC state */
- int num_mcs;
- int resets;
- unsigned long flags;
- u64 mac_addr;
- u32 logical_port_id;
- u32 port_speed;
- u32 msg_enable;
- u32 sig_comp_iv;
- u32 state;
- u8 phy_link;
- u8 full_duplex;
- u8 autoneg;
- u8 num_def_qps;
- wait_queue_head_t swqe_avail_wq;
- wait_queue_head_t restart_wq;
-};
-
-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;
-};
-
-enum ehea_flag_bits {
- __EHEA_STOP_XFER,
- __EHEA_DISABLE_PORT_RESET
-};
-
-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__ */
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c b/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
deleted file mode 100644
index 1db5b6790a41..000000000000
--- a/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
+++ /dev/null
@@ -1,277 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * linux/drivers/net/ethernet/ibm/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>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "ehea.h"
-#include "ehea_phyp.h"
-
-static int ehea_get_link_ksettings(struct net_device *dev,
- struct ethtool_link_ksettings *cmd)
-{
- struct ehea_port *port = netdev_priv(dev);
- u32 supported, advertising;
- u32 speed;
- 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:
- speed = SPEED_10;
- break;
- case EHEA_SPEED_100M:
- speed = SPEED_100;
- break;
- case EHEA_SPEED_1G:
- speed = SPEED_1000;
- break;
- case EHEA_SPEED_10G:
- speed = SPEED_10000;
- break;
- default:
- speed = -1;
- break; /* BUG */
- }
- cmd->base.duplex = port->full_duplex == 1 ?
- DUPLEX_FULL : DUPLEX_HALF;
- } else {
- speed = SPEED_UNKNOWN;
- cmd->base.duplex = DUPLEX_UNKNOWN;
- }
- cmd->base.speed = speed;
-
- if (cmd->base.speed == SPEED_10000) {
- supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
- advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
- cmd->base.port = PORT_FIBRE;
- } else {
- supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
- | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
- | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
- | SUPPORTED_TP);
- advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
- | ADVERTISED_TP);
- cmd->base.port = PORT_TP;
- }
-
- cmd->base.autoneg = port->autoneg == 1 ?
- AUTONEG_ENABLE : AUTONEG_DISABLE;
-
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
- supported);
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
- advertising);
-
- return 0;
-}
-
-static int ehea_set_link_ksettings(struct net_device *dev,
- const struct ethtool_link_ksettings *cmd)
-{
- struct ehea_port *port = netdev_priv(dev);
- int ret = 0;
- u32 sp;
-
- if (cmd->base.autoneg == AUTONEG_ENABLE) {
- sp = EHEA_SPEED_AUTONEG;
- goto doit;
- }
-
- switch (cmd->base.speed) {
- case SPEED_10:
- if (cmd->base.duplex == DUPLEX_FULL)
- sp = H_SPEED_10M_F;
- else
- sp = H_SPEED_10M_H;
- break;
-
- case SPEED_100:
- if (cmd->base.duplex == DUPLEX_FULL)
- sp = H_SPEED_100M_F;
- else
- sp = H_SPEED_100M_H;
- break;
-
- case SPEED_1000:
- if (cmd->base.duplex == DUPLEX_FULL)
- sp = H_SPEED_1G_F;
- else
- ret = -EINVAL;
- break;
-
- case SPEED_10000:
- if (cmd->base.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)
- netdev_info(dev,
- "Port speed successfully set: %dMbps %s Duplex\n",
- 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)
- netdev_info(port->netdev,
- "Port speed successfully set: %dMbps %s Duplex\n",
- port->port_speed,
- port->full_duplex == 1 ? "Full" : "Half");
- return ret;
-}
-
-static void ehea_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- strscpy(info->driver, DRV_NAME, sizeof(info->driver));
- strscpy(info->version, DRV_VERSION, sizeof(info->version));
-}
-
-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 const char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
- {"sig_comp_iv"},
- {"swqe_refill_th"},
- {"port resets"},
- {"Receive errors"},
- {"TCP cksum errors"},
- {"IP cksum errors"},
- {"Frame cksum errors"},
- {"num SQ stopped"},
- {"PR0 free_swqes"},
- {"PR1 free_swqes"},
- {"PR2 free_swqes"},
- {"PR3 free_swqes"},
- {"PR4 free_swqes"},
- {"PR5 free_swqes"},
- {"PR6 free_swqes"},
- {"PR7 free_swqes"},
- {"PR8 free_swqes"},
- {"PR9 free_swqes"},
- {"PR10 free_swqes"},
- {"PR11 free_swqes"},
- {"PR12 free_swqes"},
- {"PR13 free_swqes"},
- {"PR14 free_swqes"},
- {"PR15 free_swqes"},
-};
-
-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_sset_count(struct net_device *dev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS:
- return ARRAY_SIZE(ehea_ethtool_stats_keys);
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void ehea_get_ethtool_stats(struct net_device *dev,
- struct ethtool_stats *stats, u64 *data)
-{
- int i, k, tmp;
- struct ehea_port *port = netdev_priv(dev);
-
- for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
- data[i] = 0;
- i = 0;
-
- data[i++] = port->sig_comp_iv;
- data[i++] = port->port_res[0].swqe_refill_th;
- data[i++] = port->resets;
-
- for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
- tmp += port->port_res[k].p_stats.poll_receive_errors;
- data[i++] = tmp;
-
- for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
- tmp += port->port_res[k].p_stats.err_tcp_cksum;
- data[i++] = tmp;
-
- for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
- tmp += port->port_res[k].p_stats.err_ip_cksum;
- data[i++] = tmp;
-
- for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
- tmp += port->port_res[k].p_stats.err_frame_crc;
- data[i++] = tmp;
-
- for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
- tmp += port->port_res[k].p_stats.queue_stopped;
- data[i++] = tmp;
-
- for (k = 0; k < 16; k++)
- data[i++] = atomic_read(&port->port_res[k].swqe_avail);
-}
-
-static const struct ethtool_ops ehea_ethtool_ops = {
- .get_drvinfo = ehea_get_drvinfo,
- .get_msglevel = ehea_get_msglevel,
- .set_msglevel = ehea_set_msglevel,
- .get_link = ethtool_op_get_link,
- .get_strings = ehea_get_strings,
- .get_sset_count = ehea_get_sset_count,
- .get_ethtool_stats = ehea_get_ethtool_stats,
- .nway_reset = ehea_nway_reset, /* Restart autonegotiation */
- .get_link_ksettings = ehea_get_link_ksettings,
- .set_link_ksettings = ehea_set_link_ksettings,
-};
-
-void ehea_set_ethtool_ops(struct net_device *netdev)
-{
- netdev->ethtool_ops = &ehea_ethtool_ops;
-}
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_hw.h b/drivers/net/ethernet/ibm/ehea/ehea_hw.h
deleted file mode 100644
index 590933a45d65..000000000000
--- a/drivers/net/ethernet/ibm/ehea/ehea_hw.h
+++ /dev/null
@@ -1,253 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * linux/drivers/net/ethernet/ibm/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>
- */
-
-#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;
-};
-
-/*
- * These access functions will be changed when the dissuccsion about
- * the new access methods for POWER has settled.
- */
-
-static inline u64 epa_load(struct h_epa epa, u32 offset)
-{
- return __raw_readq((void __iomem *)(epa.addr + offset));
-}
-
-static inline void epa_store(struct h_epa epa, u32 offset, u64 value)
-{
- __raw_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)
-{
- __raw_writeq(value, (void __iomem *)(epa.addr + 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))
-
-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__ */
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c
deleted file mode 100644
index bfc8699a05b9..000000000000
--- a/drivers/net/ethernet/ibm/ehea/ehea_main.c
+++ /dev/null
@@ -1,3581 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * linux/drivers/net/ethernet/ibm/ehea/ehea_main.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>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/device.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/udp.h>
-#include <linux/if.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <linux/if_ether.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/memory.h>
-#include <asm/kexec.h>
-#include <linux/mutex.h>
-#include <linux/prefetch.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-
-#include <net/ip.h>
-
-#include "ehea.h"
-#include "ehea_qmr.h"
-#include "ehea_phyp.h"
-
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>");
-MODULE_DESCRIPTION("IBM eServer HEA Driver");
-MODULE_VERSION(DRV_VERSION);
-
-
-static int msg_level = -1;
-static int rq1_entries = EHEA_DEF_ENTRIES_RQ1;
-static int rq2_entries = EHEA_DEF_ENTRIES_RQ2;
-static int rq3_entries = EHEA_DEF_ENTRIES_RQ3;
-static int sq_entries = EHEA_DEF_ENTRIES_SQ;
-static int use_mcs = 1;
-static int prop_carrier_state;
-
-module_param(msg_level, int, 0);
-module_param(rq1_entries, int, 0);
-module_param(rq2_entries, int, 0);
-module_param(rq3_entries, int, 0);
-module_param(sq_entries, int, 0);
-module_param(prop_carrier_state, int, 0);
-module_param(use_mcs, int, 0);
-
-MODULE_PARM_DESC(msg_level, "msg_level");
-MODULE_PARM_DESC(prop_carrier_state, "Propagate carrier state of physical "
- "port to stack. 1:yes, 0:no. Default = 0 ");
-MODULE_PARM_DESC(rq3_entries, "Number of entries for Receive Queue 3 "
- "[2^x - 1], x = [7..14]. Default = "
- __MODULE_STRING(EHEA_DEF_ENTRIES_RQ3) ")");
-MODULE_PARM_DESC(rq2_entries, "Number of entries for Receive Queue 2 "
- "[2^x - 1], x = [7..14]. Default = "
- __MODULE_STRING(EHEA_DEF_ENTRIES_RQ2) ")");
-MODULE_PARM_DESC(rq1_entries, "Number of entries for Receive Queue 1 "
- "[2^x - 1], x = [7..14]. Default = "
- __MODULE_STRING(EHEA_DEF_ENTRIES_RQ1) ")");
-MODULE_PARM_DESC(sq_entries, " Number of entries for the Send Queue "
- "[2^x - 1], x = [7..14]. Default = "
- __MODULE_STRING(EHEA_DEF_ENTRIES_SQ) ")");
-MODULE_PARM_DESC(use_mcs, " Multiple receive queues, 1: enable, 0: disable, "
- "Default = 1");
-
-static int port_name_cnt;
-static LIST_HEAD(adapter_list);
-static unsigned long ehea_driver_flags;
-static DEFINE_MUTEX(dlpar_mem_lock);
-static struct ehea_fw_handle_array ehea_fw_handles;
-static struct ehea_bcmc_reg_array ehea_bcmc_regs;
-
-
-static int ehea_probe_adapter(struct platform_device *dev);
-
-static void ehea_remove(struct platform_device *dev);
-
-static const struct of_device_id ehea_module_device_table[] = {
- {
- .name = "lhea",
- .compatible = "IBM,lhea",
- },
- {
- .type = "network",
- .compatible = "IBM,lhea-ethernet",
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, ehea_module_device_table);
-
-static const struct of_device_id ehea_device_table[] = {
- {
- .name = "lhea",
- .compatible = "IBM,lhea",
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, ehea_device_table);
-
-static struct platform_driver ehea_driver = {
- .driver = {
- .name = "ehea",
- .owner = THIS_MODULE,
- .of_match_table = ehea_device_table,
- },
- .probe = ehea_probe_adapter,
- .remove = ehea_remove,
-};
-
-void ehea_dump(void *adr, int len, char *msg)
-{
- int x;
- unsigned char *deb = adr;
- for (x = 0; x < len; x += 16) {
- pr_info("%s adr=%p ofs=%04x %016llx %016llx\n",
- msg, deb, x, *((u64 *)&deb[0]), *((u64 *)&deb[8]));
- deb += 16;
- }
-}
-
-static void ehea_schedule_port_reset(struct ehea_port *port)
-{
- if (!test_bit(__EHEA_DISABLE_PORT_RESET, &port->flags))
- schedule_work(&port->reset_task);
-}
-
-static void ehea_update_firmware_handles(void)
-{
- struct ehea_fw_handle_entry *arr = NULL;
- struct ehea_adapter *adapter;
- int num_adapters = 0;
- int num_ports = 0;
- int num_portres = 0;
- int i = 0;
- int num_fw_handles, k, l;
-
- /* Determine number of handles */
- mutex_lock(&ehea_fw_handles.lock);
-
- list_for_each_entry(adapter, &adapter_list, list) {
- num_adapters++;
-
- for (k = 0; k < EHEA_MAX_PORTS; k++) {
- struct ehea_port *port = adapter->port[k];
-
- if (!port || (port->state != EHEA_PORT_UP))
- continue;
-
- num_ports++;
- num_portres += port->num_def_qps;
- }
- }
-
- num_fw_handles = num_adapters * EHEA_NUM_ADAPTER_FW_HANDLES +
- num_ports * EHEA_NUM_PORT_FW_HANDLES +
- num_portres * EHEA_NUM_PORTRES_FW_HANDLES;
-
- if (num_fw_handles) {
- arr = kzalloc_objs(*arr, num_fw_handles);
- if (!arr)
- goto out; /* Keep the existing array */
- } else
- goto out_update;
-
- list_for_each_entry(adapter, &adapter_list, list) {
- if (num_adapters == 0)
- break;
-
- for (k = 0; k < EHEA_MAX_PORTS; k++) {
- struct ehea_port *port = adapter->port[k];
-
- if (!port || (port->state != EHEA_PORT_UP) ||
- (num_ports == 0))
- continue;
-
- for (l = 0; l < port->num_def_qps; l++) {
- struct ehea_port_res *pr = &port->port_res[l];
-
- arr[i].adh = adapter->handle;
- arr[i++].fwh = pr->qp->fw_handle;
- arr[i].adh = adapter->handle;
- arr[i++].fwh = pr->send_cq->fw_handle;
- arr[i].adh = adapter->handle;
- arr[i++].fwh = pr->recv_cq->fw_handle;
- arr[i].adh = adapter->handle;
- arr[i++].fwh = pr->eq->fw_handle;
- arr[i].adh = adapter->handle;
- arr[i++].fwh = pr->send_mr.handle;
- arr[i].adh = adapter->handle;
- arr[i++].fwh = pr->recv_mr.handle;
- }
- arr[i].adh = adapter->handle;
- arr[i++].fwh = port->qp_eq->fw_handle;
- num_ports--;
- }
-
- arr[i].adh = adapter->handle;
- arr[i++].fwh = adapter->neq->fw_handle;
-
- if (adapter->mr.handle) {
- arr[i].adh = adapter->handle;
- arr[i++].fwh = adapter->mr.handle;
- }
- num_adapters--;
- }
-
-out_update:
- kfree(ehea_fw_handles.arr);
- ehea_fw_handles.arr = arr;
- ehea_fw_handles.num_entries = i;
-out:
- mutex_unlock(&ehea_fw_handles.lock);
-}
-
-static void ehea_update_bcmc_registrations(void)
-{
- unsigned long flags;
- struct ehea_bcmc_reg_entry *arr = NULL;
- struct ehea_adapter *adapter;
- struct ehea_mc_list *mc_entry;
- int num_registrations = 0;
- int i = 0;
- int k;
-
- spin_lock_irqsave(&ehea_bcmc_regs.lock, flags);
-
- /* Determine number of registrations */
- list_for_each_entry(adapter, &adapter_list, list)
- for (k = 0; k < EHEA_MAX_PORTS; k++) {
- struct ehea_port *port = adapter->port[k];
-
- if (!port || (port->state != EHEA_PORT_UP))
- continue;
-
- num_registrations += 2; /* Broadcast registrations */
-
- list_for_each_entry(mc_entry, &port->mc_list->list,list)
- num_registrations += 2;
- }
-
- if (num_registrations) {
- arr = kzalloc_objs(*arr, num_registrations, GFP_ATOMIC);
- if (!arr)
- goto out; /* Keep the existing array */
- } else
- goto out_update;
-
- list_for_each_entry(adapter, &adapter_list, list) {
- for (k = 0; k < EHEA_MAX_PORTS; k++) {
- struct ehea_port *port = adapter->port[k];
-
- if (!port || (port->state != EHEA_PORT_UP))
- continue;
-
- if (num_registrations == 0)
- goto out_update;
-
- arr[i].adh = adapter->handle;
- arr[i].port_id = port->logical_port_id;
- arr[i].reg_type = EHEA_BCMC_BROADCAST |
- EHEA_BCMC_UNTAGGED;
- arr[i++].macaddr = port->mac_addr;
-
- arr[i].adh = adapter->handle;
- arr[i].port_id = port->logical_port_id;
- arr[i].reg_type = EHEA_BCMC_BROADCAST |
- EHEA_BCMC_VLANID_ALL;
- arr[i++].macaddr = port->mac_addr;
- num_registrations -= 2;
-
- list_for_each_entry(mc_entry,
- &port->mc_list->list, list) {
- if (num_registrations == 0)
- goto out_update;
-
- arr[i].adh = adapter->handle;
- arr[i].port_id = port->logical_port_id;
- arr[i].reg_type = EHEA_BCMC_MULTICAST |
- EHEA_BCMC_UNTAGGED;
- if (mc_entry->macaddr == 0)
- arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL;
- arr[i++].macaddr = mc_entry->macaddr;
-
- arr[i].adh = adapter->handle;
- arr[i].port_id = port->logical_port_id;
- arr[i].reg_type = EHEA_BCMC_MULTICAST |
- EHEA_BCMC_VLANID_ALL;
- if (mc_entry->macaddr == 0)
- arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL;
- arr[i++].macaddr = mc_entry->macaddr;
- num_registrations -= 2;
- }
- }
- }
-
-out_update:
- kfree(ehea_bcmc_regs.arr);
- ehea_bcmc_regs.arr = arr;
- ehea_bcmc_regs.num_entries = i;
-out:
- spin_unlock_irqrestore(&ehea_bcmc_regs.lock, flags);
-}
-
-static void ehea_get_stats64(struct net_device *dev,
- struct rtnl_link_stats64 *stats)
-{
- struct ehea_port *port = netdev_priv(dev);
- u64 rx_packets = 0, tx_packets = 0, rx_bytes = 0, tx_bytes = 0;
- int i;
-
- for (i = 0; i < port->num_def_qps; i++) {
- rx_packets += port->port_res[i].rx_packets;
- rx_bytes += port->port_res[i].rx_bytes;
- }
-
- for (i = 0; i < port->num_def_qps; i++) {
- tx_packets += port->port_res[i].tx_packets;
- tx_bytes += port->port_res[i].tx_bytes;
- }
-
- stats->tx_packets = tx_packets;
- stats->rx_bytes = rx_bytes;
- stats->tx_bytes = tx_bytes;
- stats->rx_packets = rx_packets;
-
- stats->multicast = port->stats.multicast;
- stats->rx_errors = port->stats.rx_errors;
-}
-
-static void ehea_update_stats(struct work_struct *work)
-{
- struct ehea_port *port =
- container_of(work, struct ehea_port, stats_work.work);
- struct net_device *dev = port->netdev;
- struct rtnl_link_stats64 *stats = &port->stats;
- struct hcp_ehea_port_cb2 *cb2;
- u64 hret;
-
- cb2 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb2) {
- netdev_err(dev, "No mem for cb2. Some interface statistics were not updated\n");
- goto resched;
- }
-
- hret = ehea_h_query_ehea_port(port->adapter->handle,
- port->logical_port_id,
- H_PORT_CB2, H_PORT_CB2_ALL, cb2);
- if (hret != H_SUCCESS) {
- netdev_err(dev, "query_ehea_port failed\n");
- goto out_herr;
- }
-
- if (netif_msg_hw(port))
- ehea_dump(cb2, sizeof(*cb2), "net_device_stats");
-
- stats->multicast = cb2->rxmcp;
- stats->rx_errors = cb2->rxuerr;
-
-out_herr:
- free_page((unsigned long)cb2);
-resched:
- schedule_delayed_work(&port->stats_work,
- round_jiffies_relative(msecs_to_jiffies(1000)));
-}
-
-static void ehea_refill_rq1(struct ehea_port_res *pr, int index, int nr_of_wqes)
-{
- struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr;
- struct net_device *dev = pr->port->netdev;
- int max_index_mask = pr->rq1_skba.len - 1;
- int fill_wqes = pr->rq1_skba.os_skbs + nr_of_wqes;
- int adder = 0;
- int i;
-
- pr->rq1_skba.os_skbs = 0;
-
- if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) {
- if (nr_of_wqes > 0)
- pr->rq1_skba.index = index;
- pr->rq1_skba.os_skbs = fill_wqes;
- return;
- }
-
- for (i = 0; i < fill_wqes; i++) {
- if (!skb_arr_rq1[index]) {
- skb_arr_rq1[index] = netdev_alloc_skb(dev,
- EHEA_L_PKT_SIZE);
- if (!skb_arr_rq1[index]) {
- pr->rq1_skba.os_skbs = fill_wqes - i;
- break;
- }
- }
- index--;
- index &= max_index_mask;
- adder++;
- }
-
- if (adder == 0)
- return;
-
- /* Ring doorbell */
- ehea_update_rq1a(pr->qp, adder);
-}
-
-static void ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a)
-{
- struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr;
- struct net_device *dev = pr->port->netdev;
- int i;
-
- if (nr_rq1a > pr->rq1_skba.len) {
- netdev_err(dev, "NR_RQ1A bigger than skb array len\n");
- return;
- }
-
- for (i = 0; i < nr_rq1a; i++) {
- skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE);
- if (!skb_arr_rq1[i])
- break;
- }
- /* Ring doorbell */
- ehea_update_rq1a(pr->qp, i - 1);
-}
-
-static int ehea_refill_rq_def(struct ehea_port_res *pr,
- struct ehea_q_skb_arr *q_skba, int rq_nr,
- int num_wqes, int wqe_type, int packet_size)
-{
- struct net_device *dev = pr->port->netdev;
- struct ehea_qp *qp = pr->qp;
- struct sk_buff **skb_arr = q_skba->arr;
- struct ehea_rwqe *rwqe;
- int i, index, max_index_mask, fill_wqes;
- int adder = 0;
- int ret = 0;
-
- fill_wqes = q_skba->os_skbs + num_wqes;
- q_skba->os_skbs = 0;
-
- if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) {
- q_skba->os_skbs = fill_wqes;
- return ret;
- }
-
- index = q_skba->index;
- max_index_mask = q_skba->len - 1;
- for (i = 0; i < fill_wqes; i++) {
- u64 tmp_addr;
- struct sk_buff *skb;
-
- skb = netdev_alloc_skb_ip_align(dev, packet_size);
- if (!skb) {
- q_skba->os_skbs = fill_wqes - i;
- if (q_skba->os_skbs == q_skba->len - 2) {
- netdev_info(pr->port->netdev,
- "rq%i ran dry - no mem for skb\n",
- rq_nr);
- ret = -ENOMEM;
- }
- break;
- }
-
- skb_arr[index] = skb;
- tmp_addr = ehea_map_vaddr(skb->data);
- if (tmp_addr == -1) {
- dev_consume_skb_any(skb);
- q_skba->os_skbs = fill_wqes - i;
- ret = 0;
- break;
- }
-
- rwqe = ehea_get_next_rwqe(qp, rq_nr);
- rwqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, wqe_type)
- | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, index);
- rwqe->sg_list[0].l_key = pr->recv_mr.lkey;
- rwqe->sg_list[0].vaddr = tmp_addr;
- rwqe->sg_list[0].len = packet_size;
- rwqe->data_segments = 1;
-
- index++;
- index &= max_index_mask;
- adder++;
- }
-
- q_skba->index = index;
- if (adder == 0)
- goto out;
-
- /* Ring doorbell */
- iosync();
- if (rq_nr == 2)
- ehea_update_rq2a(pr->qp, adder);
- else
- ehea_update_rq3a(pr->qp, adder);
-out:
- return ret;
-}
-
-
-static int ehea_refill_rq2(struct ehea_port_res *pr, int nr_of_wqes)
-{
- return ehea_refill_rq_def(pr, &pr->rq2_skba, 2,
- nr_of_wqes, EHEA_RWQE2_TYPE,
- EHEA_RQ2_PKT_SIZE);
-}
-
-
-static int ehea_refill_rq3(struct ehea_port_res *pr, int nr_of_wqes)
-{
- return ehea_refill_rq_def(pr, &pr->rq3_skba, 3,
- nr_of_wqes, EHEA_RWQE3_TYPE,
- EHEA_MAX_PACKET_SIZE);
-}
-
-static inline int ehea_check_cqe(struct ehea_cqe *cqe, int *rq_num)
-{
- *rq_num = (cqe->type & EHEA_CQE_TYPE_RQ) >> 5;
- if ((cqe->status & EHEA_CQE_STAT_ERR_MASK) == 0)
- return 0;
- if (((cqe->status & EHEA_CQE_STAT_ERR_TCP) != 0) &&
- (cqe->header_length == 0))
- return 0;
- return -EINVAL;
-}
-
-static inline void ehea_fill_skb(struct net_device *dev,
- struct sk_buff *skb, struct ehea_cqe *cqe,
- struct ehea_port_res *pr)
-{
- int length = cqe->num_bytes_transfered - 4; /*remove CRC */
-
- skb_put(skb, length);
- skb->protocol = eth_type_trans(skb, dev);
-
- /* The packet was not an IPV4 packet so a complemented checksum was
- calculated. The value is found in the Internet Checksum field. */
- if (cqe->status & EHEA_CQE_BLIND_CKSUM) {
- skb->ip_summed = CHECKSUM_COMPLETE;
- skb->csum = csum_unfold(~cqe->inet_checksum_value);
- } else
- skb->ip_summed = CHECKSUM_UNNECESSARY;
-
- skb_record_rx_queue(skb, pr - &pr->port->port_res[0]);
-}
-
-static inline struct sk_buff *get_skb_by_index(struct sk_buff **skb_array,
- int arr_len,
- struct ehea_cqe *cqe)
-{
- int skb_index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id);
- struct sk_buff *skb;
- void *pref;
- int x;
-
- x = skb_index + 1;
- x &= (arr_len - 1);
-
- pref = skb_array[x];
- if (pref) {
- prefetchw(pref);
- prefetchw(pref + EHEA_CACHE_LINE);
-
- pref = (skb_array[x]->data);
- prefetch(pref);
- prefetch(pref + EHEA_CACHE_LINE);
- prefetch(pref + EHEA_CACHE_LINE * 2);
- prefetch(pref + EHEA_CACHE_LINE * 3);
- }
-
- skb = skb_array[skb_index];
- skb_array[skb_index] = NULL;
- return skb;
-}
-
-static inline struct sk_buff *get_skb_by_index_ll(struct sk_buff **skb_array,
- int arr_len, int wqe_index)
-{
- struct sk_buff *skb;
- void *pref;
- int x;
-
- x = wqe_index + 1;
- x &= (arr_len - 1);
-
- pref = skb_array[x];
- if (pref) {
- prefetchw(pref);
- prefetchw(pref + EHEA_CACHE_LINE);
-
- pref = (skb_array[x]->data);
- prefetchw(pref);
- prefetchw(pref + EHEA_CACHE_LINE);
- }
-
- skb = skb_array[wqe_index];
- skb_array[wqe_index] = NULL;
- return skb;
-}
-
-static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq,
- struct ehea_cqe *cqe, int *processed_rq2,
- int *processed_rq3)
-{
- struct sk_buff *skb;
-
- if (cqe->status & EHEA_CQE_STAT_ERR_TCP)
- pr->p_stats.err_tcp_cksum++;
- if (cqe->status & EHEA_CQE_STAT_ERR_IP)
- pr->p_stats.err_ip_cksum++;
- if (cqe->status & EHEA_CQE_STAT_ERR_CRC)
- pr->p_stats.err_frame_crc++;
-
- if (rq == 2) {
- *processed_rq2 += 1;
- skb = get_skb_by_index(pr->rq2_skba.arr, pr->rq2_skba.len, cqe);
- dev_kfree_skb(skb);
- } else if (rq == 3) {
- *processed_rq3 += 1;
- skb = get_skb_by_index(pr->rq3_skba.arr, pr->rq3_skba.len, cqe);
- dev_kfree_skb(skb);
- }
-
- if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) {
- if (netif_msg_rx_err(pr->port)) {
- pr_err("Critical receive error for QP %d. Resetting port.\n",
- pr->qp->init_attr.qp_nr);
- ehea_dump(cqe, sizeof(*cqe), "CQE");
- }
- ehea_schedule_port_reset(pr->port);
- return 1;
- }
-
- return 0;
-}
-
-static int ehea_proc_rwqes(struct net_device *dev,
- struct ehea_port_res *pr,
- int budget)
-{
- struct ehea_port *port = pr->port;
- struct ehea_qp *qp = pr->qp;
- struct ehea_cqe *cqe;
- struct sk_buff *skb;
- struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr;
- struct sk_buff **skb_arr_rq2 = pr->rq2_skba.arr;
- struct sk_buff **skb_arr_rq3 = pr->rq3_skba.arr;
- int skb_arr_rq1_len = pr->rq1_skba.len;
- int skb_arr_rq2_len = pr->rq2_skba.len;
- int skb_arr_rq3_len = pr->rq3_skba.len;
- int processed, processed_rq1, processed_rq2, processed_rq3;
- u64 processed_bytes = 0;
- int wqe_index, last_wqe_index, rq, port_reset;
-
- processed = processed_rq1 = processed_rq2 = processed_rq3 = 0;
- last_wqe_index = 0;
-
- cqe = ehea_poll_rq1(qp, &wqe_index);
- while ((processed < budget) && cqe) {
- ehea_inc_rq1(qp);
- processed_rq1++;
- processed++;
- if (netif_msg_rx_status(port))
- ehea_dump(cqe, sizeof(*cqe), "CQE");
-
- last_wqe_index = wqe_index;
- rmb();
- if (!ehea_check_cqe(cqe, &rq)) {
- if (rq == 1) {
- /* LL RQ1 */
- skb = get_skb_by_index_ll(skb_arr_rq1,
- skb_arr_rq1_len,
- wqe_index);
- if (unlikely(!skb)) {
- netif_info(port, rx_err, dev,
- "LL rq1: skb=NULL\n");
-
- skb = netdev_alloc_skb(dev,
- EHEA_L_PKT_SIZE);
- if (!skb)
- break;
- }
- skb_copy_to_linear_data(skb, ((char *)cqe) + 64,
- cqe->num_bytes_transfered - 4);
- ehea_fill_skb(dev, skb, cqe, pr);
- } else if (rq == 2) {
- /* RQ2 */
- skb = get_skb_by_index(skb_arr_rq2,
- skb_arr_rq2_len, cqe);
- if (unlikely(!skb)) {
- netif_err(port, rx_err, dev,
- "rq2: skb=NULL\n");
- break;
- }
- ehea_fill_skb(dev, skb, cqe, pr);
- processed_rq2++;
- } else {
- /* RQ3 */
- skb = get_skb_by_index(skb_arr_rq3,
- skb_arr_rq3_len, cqe);
- if (unlikely(!skb)) {
- netif_err(port, rx_err, dev,
- "rq3: skb=NULL\n");
- break;
- }
- ehea_fill_skb(dev, skb, cqe, pr);
- processed_rq3++;
- }
-
- processed_bytes += skb->len;
-
- if (cqe->status & EHEA_CQE_VLAN_TAG_XTRACT)
- __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
- cqe->vlan_tag);
-
- napi_gro_receive(&pr->napi, skb);
- } else {
- pr->p_stats.poll_receive_errors++;
- port_reset = ehea_treat_poll_error(pr, rq, cqe,
- &processed_rq2,
- &processed_rq3);
- if (port_reset)
- break;
- }
- cqe = ehea_poll_rq1(qp, &wqe_index);
- }
-
- pr->rx_packets += processed;
- pr->rx_bytes += processed_bytes;
-
- ehea_refill_rq1(pr, last_wqe_index, processed_rq1);
- ehea_refill_rq2(pr, processed_rq2);
- ehea_refill_rq3(pr, processed_rq3);
-
- return processed;
-}
-
-#define SWQE_RESTART_CHECK 0xdeadbeaff00d0000ull
-
-static void reset_sq_restart_flag(struct ehea_port *port)
-{
- int i;
-
- for (i = 0; i < port->num_def_qps; i++) {
- struct ehea_port_res *pr = &port->port_res[i];
- pr->sq_restart_flag = 0;
- }
- wake_up(&port->restart_wq);
-}
-
-static void check_sqs(struct ehea_port *port)
-{
- struct ehea_swqe *swqe;
- int swqe_index;
- int i;
-
- for (i = 0; i < port->num_def_qps; i++) {
- struct ehea_port_res *pr = &port->port_res[i];
- int ret;
- swqe = ehea_get_swqe(pr->qp, &swqe_index);
- memset(swqe, 0, SWQE_HEADER_SIZE);
- atomic_dec(&pr->swqe_avail);
-
- swqe->tx_control |= EHEA_SWQE_PURGE;
- swqe->wr_id = SWQE_RESTART_CHECK;
- swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION;
- swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT;
- swqe->immediate_data_length = 80;
-
- ehea_post_swqe(pr->qp, swqe);
-
- ret = wait_event_timeout(port->restart_wq,
- pr->sq_restart_flag == 0,
- msecs_to_jiffies(100));
-
- if (!ret) {
- pr_err("HW/SW queues out of sync\n");
- ehea_schedule_port_reset(pr->port);
- return;
- }
- }
-}
-
-
-static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota)
-{
- struct sk_buff *skb;
- struct ehea_cq *send_cq = pr->send_cq;
- struct ehea_cqe *cqe;
- int quota = my_quota;
- int cqe_counter = 0;
- int swqe_av = 0;
- int index;
- struct netdev_queue *txq = netdev_get_tx_queue(pr->port->netdev,
- pr - &pr->port->port_res[0]);
-
- cqe = ehea_poll_cq(send_cq);
- while (cqe && (quota > 0)) {
- ehea_inc_cq(send_cq);
-
- cqe_counter++;
- rmb();
-
- if (cqe->wr_id == SWQE_RESTART_CHECK) {
- pr->sq_restart_flag = 1;
- swqe_av++;
- break;
- }
-
- if (cqe->status & EHEA_CQE_STAT_ERR_MASK) {
- pr_err("Bad send completion status=0x%04X\n",
- cqe->status);
-
- if (netif_msg_tx_err(pr->port))
- ehea_dump(cqe, sizeof(*cqe), "Send CQE");
-
- if (cqe->status & EHEA_CQE_STAT_RESET_MASK) {
- pr_err("Resetting port\n");
- ehea_schedule_port_reset(pr->port);
- break;
- }
- }
-
- if (netif_msg_tx_done(pr->port))
- ehea_dump(cqe, sizeof(*cqe), "CQE");
-
- if (likely(EHEA_BMASK_GET(EHEA_WR_ID_TYPE, cqe->wr_id)
- == EHEA_SWQE2_TYPE)) {
-
- index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id);
- skb = pr->sq_skba.arr[index];
- dev_consume_skb_any(skb);
- pr->sq_skba.arr[index] = NULL;
- }
-
- swqe_av += EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id);
- quota--;
-
- cqe = ehea_poll_cq(send_cq);
- }
-
- ehea_update_feca(send_cq, cqe_counter);
- atomic_add(swqe_av, &pr->swqe_avail);
-
- if (unlikely(netif_tx_queue_stopped(txq) &&
- (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th))) {
- __netif_tx_lock(txq, smp_processor_id());
- if (netif_tx_queue_stopped(txq) &&
- (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th))
- netif_tx_wake_queue(txq);
- __netif_tx_unlock(txq);
- }
-
- wake_up(&pr->port->swqe_avail_wq);
-
- return cqe;
-}
-
-#define EHEA_POLL_MAX_CQES 65535
-
-static int ehea_poll(struct napi_struct *napi, int budget)
-{
- struct ehea_port_res *pr = container_of(napi, struct ehea_port_res,
- napi);
- struct net_device *dev = pr->port->netdev;
- struct ehea_cqe *cqe;
- struct ehea_cqe *cqe_skb = NULL;
- int wqe_index;
- int rx = 0;
-
- cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES);
- rx += ehea_proc_rwqes(dev, pr, budget - rx);
-
- while (rx != budget) {
- napi_complete(napi);
- ehea_reset_cq_ep(pr->recv_cq);
- ehea_reset_cq_ep(pr->send_cq);
- ehea_reset_cq_n1(pr->recv_cq);
- ehea_reset_cq_n1(pr->send_cq);
- rmb();
- cqe = ehea_poll_rq1(pr->qp, &wqe_index);
- cqe_skb = ehea_poll_cq(pr->send_cq);
-
- if (!cqe && !cqe_skb)
- return rx;
-
- if (!napi_schedule(napi))
- return rx;
-
- cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES);
- rx += ehea_proc_rwqes(dev, pr, budget - rx);
- }
-
- return rx;
-}
-
-static irqreturn_t ehea_recv_irq_handler(int irq, void *param)
-{
- struct ehea_port_res *pr = param;
-
- napi_schedule(&pr->napi);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param)
-{
- struct ehea_port *port = param;
- struct ehea_eqe *eqe;
- struct ehea_qp *qp;
- u32 qp_token;
- u64 resource_type, aer, aerr;
- int reset_port = 0;
-
- eqe = ehea_poll_eq(port->qp_eq);
-
- while (eqe) {
- qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry);
- pr_err("QP aff_err: entry=0x%llx, token=0x%x\n",
- eqe->entry, qp_token);
-
- qp = port->port_res[qp_token].qp;
-
- resource_type = ehea_error_data(port->adapter, qp->fw_handle,
- &aer, &aerr);
-
- if (resource_type == EHEA_AER_RESTYPE_QP) {
- if ((aer & EHEA_AER_RESET_MASK) ||
- (aerr & EHEA_AERR_RESET_MASK))
- reset_port = 1;
- } else
- reset_port = 1; /* Reset in case of CQ or EQ error */
-
- eqe = ehea_poll_eq(port->qp_eq);
- }
-
- if (reset_port) {
- pr_err("Resetting port\n");
- ehea_schedule_port_reset(port);
- }
-
- return IRQ_HANDLED;
-}
-
-static struct ehea_port *ehea_get_port(struct ehea_adapter *adapter,
- int logical_port)
-{
- int i;
-
- for (i = 0; i < EHEA_MAX_PORTS; i++)
- if (adapter->port[i])
- if (adapter->port[i]->logical_port_id == logical_port)
- return adapter->port[i];
- return NULL;
-}
-
-int ehea_sense_port_attr(struct ehea_port *port)
-{
- int ret;
- u64 hret;
- struct hcp_ehea_port_cb0 *cb0;
-
- /* may be called via ehea_neq_tasklet() */
- cb0 = (void *)get_zeroed_page(GFP_ATOMIC);
- if (!cb0) {
- pr_err("no mem for cb0\n");
- ret = -ENOMEM;
- goto out;
- }
-
- hret = ehea_h_query_ehea_port(port->adapter->handle,
- port->logical_port_id, H_PORT_CB0,
- EHEA_BMASK_SET(H_PORT_CB0_ALL, 0xFFFF),
- cb0);
- if (hret != H_SUCCESS) {
- ret = -EIO;
- goto out_free;
- }
-
- /* MAC address */
- port->mac_addr = cb0->port_mac_addr << 16;
-
- if (!is_valid_ether_addr((u8 *)&port->mac_addr)) {
- ret = -EADDRNOTAVAIL;
- goto out_free;
- }
-
- /* Port speed */
- switch (cb0->port_speed) {
- case H_SPEED_10M_H:
- port->port_speed = EHEA_SPEED_10M;
- port->full_duplex = 0;
- break;
- case H_SPEED_10M_F:
- port->port_speed = EHEA_SPEED_10M;
- port->full_duplex = 1;
- break;
- case H_SPEED_100M_H:
- port->port_speed = EHEA_SPEED_100M;
- port->full_duplex = 0;
- break;
- case H_SPEED_100M_F:
- port->port_speed = EHEA_SPEED_100M;
- port->full_duplex = 1;
- break;
- case H_SPEED_1G_F:
- port->port_speed = EHEA_SPEED_1G;
- port->full_duplex = 1;
- break;
- case H_SPEED_10G_F:
- port->port_speed = EHEA_SPEED_10G;
- port->full_duplex = 1;
- break;
- default:
- port->port_speed = 0;
- port->full_duplex = 0;
- break;
- }
-
- port->autoneg = 1;
- port->num_mcs = cb0->num_default_qps;
-
- /* Number of default QPs */
- if (use_mcs)
- port->num_def_qps = cb0->num_default_qps;
- else
- port->num_def_qps = 1;
-
- if (!port->num_def_qps) {
- ret = -EINVAL;
- goto out_free;
- }
-
- ret = 0;
-out_free:
- if (ret || netif_msg_probe(port))
- ehea_dump(cb0, sizeof(*cb0), "ehea_sense_port_attr");
- free_page((unsigned long)cb0);
-out:
- return ret;
-}
-
-int ehea_set_portspeed(struct ehea_port *port, u32 port_speed)
-{
- struct hcp_ehea_port_cb4 *cb4;
- u64 hret;
- int ret = 0;
-
- cb4 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb4) {
- pr_err("no mem for cb4\n");
- ret = -ENOMEM;
- goto out;
- }
-
- cb4->port_speed = port_speed;
-
- netif_carrier_off(port->netdev);
-
- hret = ehea_h_modify_ehea_port(port->adapter->handle,
- port->logical_port_id,
- H_PORT_CB4, H_PORT_CB4_SPEED, cb4);
- if (hret == H_SUCCESS) {
- port->autoneg = port_speed == EHEA_SPEED_AUTONEG ? 1 : 0;
-
- hret = ehea_h_query_ehea_port(port->adapter->handle,
- port->logical_port_id,
- H_PORT_CB4, H_PORT_CB4_SPEED,
- cb4);
- if (hret == H_SUCCESS) {
- switch (cb4->port_speed) {
- case H_SPEED_10M_H:
- port->port_speed = EHEA_SPEED_10M;
- port->full_duplex = 0;
- break;
- case H_SPEED_10M_F:
- port->port_speed = EHEA_SPEED_10M;
- port->full_duplex = 1;
- break;
- case H_SPEED_100M_H:
- port->port_speed = EHEA_SPEED_100M;
- port->full_duplex = 0;
- break;
- case H_SPEED_100M_F:
- port->port_speed = EHEA_SPEED_100M;
- port->full_duplex = 1;
- break;
- case H_SPEED_1G_F:
- port->port_speed = EHEA_SPEED_1G;
- port->full_duplex = 1;
- break;
- case H_SPEED_10G_F:
- port->port_speed = EHEA_SPEED_10G;
- port->full_duplex = 1;
- break;
- default:
- port->port_speed = 0;
- port->full_duplex = 0;
- break;
- }
- } else {
- pr_err("Failed sensing port speed\n");
- ret = -EIO;
- }
- } else {
- if (hret == H_AUTHORITY) {
- pr_info("Hypervisor denied setting port speed\n");
- ret = -EPERM;
- } else {
- ret = -EIO;
- pr_err("Failed setting port speed\n");
- }
- }
- if (!prop_carrier_state || (port->phy_link == EHEA_PHY_LINK_UP))
- netif_carrier_on(port->netdev);
-
- free_page((unsigned long)cb4);
-out:
- return ret;
-}
-
-static void ehea_parse_eqe(struct ehea_adapter *adapter, u64 eqe)
-{
- int ret;
- u8 ec;
- u8 portnum;
- struct ehea_port *port;
- struct net_device *dev;
-
- ec = EHEA_BMASK_GET(NEQE_EVENT_CODE, eqe);
- portnum = EHEA_BMASK_GET(NEQE_PORTNUM, eqe);
- port = ehea_get_port(adapter, portnum);
- if (!port) {
- netdev_err(NULL, "unknown portnum %x\n", portnum);
- return;
- }
- dev = port->netdev;
-
- switch (ec) {
- case EHEA_EC_PORTSTATE_CHG: /* port state change */
-
- if (EHEA_BMASK_GET(NEQE_PORT_UP, eqe)) {
- if (!netif_carrier_ok(dev)) {
- ret = ehea_sense_port_attr(port);
- if (ret) {
- netdev_err(dev, "failed resensing port attributes\n");
- break;
- }
-
- netif_info(port, link, dev,
- "Logical port up: %dMbps %s Duplex\n",
- port->port_speed,
- port->full_duplex == 1 ?
- "Full" : "Half");
-
- netif_carrier_on(dev);
- netif_wake_queue(dev);
- }
- } else
- if (netif_carrier_ok(dev)) {
- netif_info(port, link, dev,
- "Logical port down\n");
- netif_carrier_off(dev);
- netif_tx_disable(dev);
- }
-
- if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PORT_UP, eqe)) {
- port->phy_link = EHEA_PHY_LINK_UP;
- netif_info(port, link, dev,
- "Physical port up\n");
- if (prop_carrier_state)
- netif_carrier_on(dev);
- } else {
- port->phy_link = EHEA_PHY_LINK_DOWN;
- netif_info(port, link, dev,
- "Physical port down\n");
- if (prop_carrier_state)
- netif_carrier_off(dev);
- }
-
- if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PRIMARY, eqe))
- netdev_info(dev,
- "External switch port is primary port\n");
- else
- netdev_info(dev,
- "External switch port is backup port\n");
-
- break;
- case EHEA_EC_ADAPTER_MALFUNC:
- netdev_err(dev, "Adapter malfunction\n");
- break;
- case EHEA_EC_PORT_MALFUNC:
- netdev_info(dev, "Port malfunction\n");
- netif_carrier_off(dev);
- netif_tx_disable(dev);
- break;
- default:
- netdev_err(dev, "unknown event code %x, eqe=0x%llX\n", ec, eqe);
- break;
- }
-}
-
-static void ehea_neq_tasklet(struct tasklet_struct *t)
-{
- struct ehea_adapter *adapter = from_tasklet(adapter, t, neq_tasklet);
- struct ehea_eqe *eqe;
- u64 event_mask;
-
- eqe = ehea_poll_eq(adapter->neq);
- pr_debug("eqe=%p\n", eqe);
-
- while (eqe) {
- pr_debug("*eqe=%lx\n", (unsigned long) eqe->entry);
- ehea_parse_eqe(adapter, eqe->entry);
- eqe = ehea_poll_eq(adapter->neq);
- pr_debug("next eqe=%p\n", eqe);
- }
-
- event_mask = EHEA_BMASK_SET(NELR_PORTSTATE_CHG, 1)
- | EHEA_BMASK_SET(NELR_ADAPTER_MALFUNC, 1)
- | EHEA_BMASK_SET(NELR_PORT_MALFUNC, 1);
-
- ehea_h_reset_events(adapter->handle,
- adapter->neq->fw_handle, event_mask);
-}
-
-static irqreturn_t ehea_interrupt_neq(int irq, void *param)
-{
- struct ehea_adapter *adapter = param;
- tasklet_hi_schedule(&adapter->neq_tasklet);
- return IRQ_HANDLED;
-}
-
-
-static int ehea_fill_port_res(struct ehea_port_res *pr)
-{
- int ret;
- struct ehea_qp_init_attr *init_attr = &pr->qp->init_attr;
-
- ehea_init_fill_rq1(pr, pr->rq1_skba.len);
-
- ret = ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1);
-
- ret |= ehea_refill_rq3(pr, init_attr->act_nr_rwqes_rq3 - 1);
-
- return ret;
-}
-
-static int ehea_reg_interrupts(struct net_device *dev)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_port_res *pr;
- int i, ret;
-
-
- snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff",
- dev->name);
-
- ret = ibmebus_request_irq(port->qp_eq->attr.ist1,
- ehea_qp_aff_irq_handler,
- 0, port->int_aff_name, port);
- if (ret) {
- netdev_err(dev, "failed registering irq for qp_aff_irq_handler:ist=%X\n",
- port->qp_eq->attr.ist1);
- goto out_free_qpeq;
- }
-
- netif_info(port, ifup, dev,
- "irq_handle 0x%X for function qp_aff_irq_handler registered\n",
- port->qp_eq->attr.ist1);
-
-
- for (i = 0; i < port->num_def_qps; i++) {
- pr = &port->port_res[i];
- snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1,
- "%s-queue%d", dev->name, i);
- ret = ibmebus_request_irq(pr->eq->attr.ist1,
- ehea_recv_irq_handler,
- 0, pr->int_send_name, pr);
- if (ret) {
- netdev_err(dev, "failed registering irq for ehea_queue port_res_nr:%d, ist=%X\n",
- i, pr->eq->attr.ist1);
- goto out_free_req;
- }
- netif_info(port, ifup, dev,
- "irq_handle 0x%X for function ehea_queue_int %d registered\n",
- pr->eq->attr.ist1, i);
- }
-out:
- return ret;
-
-
-out_free_req:
- while (--i >= 0) {
- u32 ist = port->port_res[i].eq->attr.ist1;
- ibmebus_free_irq(ist, &port->port_res[i]);
- }
-
-out_free_qpeq:
- ibmebus_free_irq(port->qp_eq->attr.ist1, port);
- i = port->num_def_qps;
-
- goto out;
-
-}
-
-static void ehea_free_interrupts(struct net_device *dev)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_port_res *pr;
- int i;
-
- /* send */
-
- for (i = 0; i < port->num_def_qps; i++) {
- pr = &port->port_res[i];
- ibmebus_free_irq(pr->eq->attr.ist1, pr);
- netif_info(port, intr, dev,
- "free send irq for res %d with handle 0x%X\n",
- i, pr->eq->attr.ist1);
- }
-
- /* associated events */
- ibmebus_free_irq(port->qp_eq->attr.ist1, port);
- netif_info(port, intr, dev,
- "associated event interrupt for handle 0x%X freed\n",
- port->qp_eq->attr.ist1);
-}
-
-static int ehea_configure_port(struct ehea_port *port)
-{
- int ret, i;
- u64 hret, mask;
- struct hcp_ehea_port_cb0 *cb0;
-
- ret = -ENOMEM;
- cb0 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb0)
- goto out;
-
- cb0->port_rc = EHEA_BMASK_SET(PXLY_RC_VALID, 1)
- | EHEA_BMASK_SET(PXLY_RC_IP_CHKSUM, 1)
- | EHEA_BMASK_SET(PXLY_RC_TCP_UDP_CHKSUM, 1)
- | EHEA_BMASK_SET(PXLY_RC_VLAN_XTRACT, 1)
- | EHEA_BMASK_SET(PXLY_RC_VLAN_TAG_FILTER,
- PXLY_RC_VLAN_FILTER)
- | EHEA_BMASK_SET(PXLY_RC_JUMBO_FRAME, 1);
-
- for (i = 0; i < port->num_mcs; i++)
- if (use_mcs)
- cb0->default_qpn_arr[i] =
- port->port_res[i].qp->init_attr.qp_nr;
- else
- cb0->default_qpn_arr[i] =
- port->port_res[0].qp->init_attr.qp_nr;
-
- if (netif_msg_ifup(port))
- ehea_dump(cb0, sizeof(*cb0), "ehea_configure_port");
-
- mask = EHEA_BMASK_SET(H_PORT_CB0_PRC, 1)
- | EHEA_BMASK_SET(H_PORT_CB0_DEFQPNARRAY, 1);
-
- hret = ehea_h_modify_ehea_port(port->adapter->handle,
- port->logical_port_id,
- H_PORT_CB0, mask, cb0);
- ret = -EIO;
- if (hret != H_SUCCESS)
- goto out_free;
-
- ret = 0;
-
-out_free:
- free_page((unsigned long)cb0);
-out:
- return ret;
-}
-
-static int ehea_gen_smrs(struct ehea_port_res *pr)
-{
- int ret;
- struct ehea_adapter *adapter = pr->port->adapter;
-
- ret = ehea_gen_smr(adapter, &adapter->mr, &pr->send_mr);
- if (ret)
- goto out;
-
- ret = ehea_gen_smr(adapter, &adapter->mr, &pr->recv_mr);
- if (ret)
- goto out_free;
-
- return 0;
-
-out_free:
- ehea_rem_mr(&pr->send_mr);
-out:
- pr_err("Generating SMRS failed\n");
- return -EIO;
-}
-
-static int ehea_rem_smrs(struct ehea_port_res *pr)
-{
- if ((ehea_rem_mr(&pr->send_mr)) ||
- (ehea_rem_mr(&pr->recv_mr)))
- return -EIO;
- else
- return 0;
-}
-
-static int ehea_init_q_skba(struct ehea_q_skb_arr *q_skba, int max_q_entries)
-{
- int arr_size = sizeof(void *) * max_q_entries;
-
- q_skba->arr = vzalloc(arr_size);
- if (!q_skba->arr)
- return -ENOMEM;
-
- q_skba->len = max_q_entries;
- q_skba->index = 0;
- q_skba->os_skbs = 0;
-
- return 0;
-}
-
-static int ehea_init_port_res(struct ehea_port *port, struct ehea_port_res *pr,
- struct port_res_cfg *pr_cfg, int queue_token)
-{
- struct ehea_adapter *adapter = port->adapter;
- enum ehea_eq_type eq_type = EHEA_EQ;
- struct ehea_qp_init_attr *init_attr = NULL;
- int ret = -EIO;
- u64 tx_bytes, rx_bytes, tx_packets, rx_packets;
-
- tx_bytes = pr->tx_bytes;
- tx_packets = pr->tx_packets;
- rx_bytes = pr->rx_bytes;
- rx_packets = pr->rx_packets;
-
- memset(pr, 0, sizeof(struct ehea_port_res));
-
- pr->tx_bytes = tx_bytes;
- pr->tx_packets = tx_packets;
- pr->rx_bytes = rx_bytes;
- pr->rx_packets = rx_packets;
-
- pr->port = port;
-
- pr->eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0);
- if (!pr->eq) {
- pr_err("create_eq failed (eq)\n");
- goto out_free;
- }
-
- pr->recv_cq = ehea_create_cq(adapter, pr_cfg->max_entries_rcq,
- pr->eq->fw_handle,
- port->logical_port_id);
- if (!pr->recv_cq) {
- pr_err("create_cq failed (cq_recv)\n");
- goto out_free;
- }
-
- pr->send_cq = ehea_create_cq(adapter, pr_cfg->max_entries_scq,
- pr->eq->fw_handle,
- port->logical_port_id);
- if (!pr->send_cq) {
- pr_err("create_cq failed (cq_send)\n");
- goto out_free;
- }
-
- if (netif_msg_ifup(port))
- pr_info("Send CQ: act_nr_cqes=%d, Recv CQ: act_nr_cqes=%d\n",
- pr->send_cq->attr.act_nr_of_cqes,
- pr->recv_cq->attr.act_nr_of_cqes);
-
- init_attr = kzalloc_obj(*init_attr);
- if (!init_attr) {
- ret = -ENOMEM;
- pr_err("no mem for ehea_qp_init_attr\n");
- goto out_free;
- }
-
- init_attr->low_lat_rq1 = 1;
- init_attr->signalingtype = 1; /* generate CQE if specified in WQE */
- init_attr->rq_count = 3;
- init_attr->qp_token = queue_token;
- init_attr->max_nr_send_wqes = pr_cfg->max_entries_sq;
- init_attr->max_nr_rwqes_rq1 = pr_cfg->max_entries_rq1;
- init_attr->max_nr_rwqes_rq2 = pr_cfg->max_entries_rq2;
- init_attr->max_nr_rwqes_rq3 = pr_cfg->max_entries_rq3;
- init_attr->wqe_size_enc_sq = EHEA_SG_SQ;
- init_attr->wqe_size_enc_rq1 = EHEA_SG_RQ1;
- init_attr->wqe_size_enc_rq2 = EHEA_SG_RQ2;
- init_attr->wqe_size_enc_rq3 = EHEA_SG_RQ3;
- init_attr->rq2_threshold = EHEA_RQ2_THRESHOLD;
- init_attr->rq3_threshold = EHEA_RQ3_THRESHOLD;
- init_attr->port_nr = port->logical_port_id;
- init_attr->send_cq_handle = pr->send_cq->fw_handle;
- init_attr->recv_cq_handle = pr->recv_cq->fw_handle;
- init_attr->aff_eq_handle = port->qp_eq->fw_handle;
-
- pr->qp = ehea_create_qp(adapter, adapter->pd, init_attr);
- if (!pr->qp) {
- pr_err("create_qp failed\n");
- ret = -EIO;
- goto out_free;
- }
-
- if (netif_msg_ifup(port))
- pr_info("QP: qp_nr=%d\n act_nr_snd_wqe=%d\n nr_rwqe_rq1=%d\n nr_rwqe_rq2=%d\n nr_rwqe_rq3=%d\n",
- init_attr->qp_nr,
- init_attr->act_nr_send_wqes,
- init_attr->act_nr_rwqes_rq1,
- init_attr->act_nr_rwqes_rq2,
- init_attr->act_nr_rwqes_rq3);
-
- pr->sq_skba_size = init_attr->act_nr_send_wqes + 1;
-
- ret = ehea_init_q_skba(&pr->sq_skba, pr->sq_skba_size);
- ret |= ehea_init_q_skba(&pr->rq1_skba, init_attr->act_nr_rwqes_rq1 + 1);
- ret |= ehea_init_q_skba(&pr->rq2_skba, init_attr->act_nr_rwqes_rq2 + 1);
- ret |= ehea_init_q_skba(&pr->rq3_skba, init_attr->act_nr_rwqes_rq3 + 1);
- if (ret)
- goto out_free;
-
- pr->swqe_refill_th = init_attr->act_nr_send_wqes / 10;
- if (ehea_gen_smrs(pr) != 0) {
- ret = -EIO;
- goto out_free;
- }
-
- atomic_set(&pr->swqe_avail, init_attr->act_nr_send_wqes - 1);
-
- kfree(init_attr);
-
- netif_napi_add(pr->port->netdev, &pr->napi, ehea_poll);
-
- ret = 0;
- goto out;
-
-out_free:
- kfree(init_attr);
- vfree(pr->sq_skba.arr);
- vfree(pr->rq1_skba.arr);
- vfree(pr->rq2_skba.arr);
- vfree(pr->rq3_skba.arr);
- ehea_destroy_qp(pr->qp);
- ehea_destroy_cq(pr->send_cq);
- ehea_destroy_cq(pr->recv_cq);
- ehea_destroy_eq(pr->eq);
-out:
- return ret;
-}
-
-static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr)
-{
- int ret, i;
-
- if (pr->qp)
- netif_napi_del(&pr->napi);
-
- ret = ehea_destroy_qp(pr->qp);
-
- if (!ret) {
- ehea_destroy_cq(pr->send_cq);
- ehea_destroy_cq(pr->recv_cq);
- ehea_destroy_eq(pr->eq);
-
- for (i = 0; i < pr->rq1_skba.len; i++)
- dev_kfree_skb(pr->rq1_skba.arr[i]);
-
- for (i = 0; i < pr->rq2_skba.len; i++)
- dev_kfree_skb(pr->rq2_skba.arr[i]);
-
- for (i = 0; i < pr->rq3_skba.len; i++)
- dev_kfree_skb(pr->rq3_skba.arr[i]);
-
- for (i = 0; i < pr->sq_skba.len; i++)
- dev_kfree_skb(pr->sq_skba.arr[i]);
-
- vfree(pr->rq1_skba.arr);
- vfree(pr->rq2_skba.arr);
- vfree(pr->rq3_skba.arr);
- vfree(pr->sq_skba.arr);
- ret = ehea_rem_smrs(pr);
- }
- return ret;
-}
-
-static void write_swqe2_immediate(struct sk_buff *skb, struct ehea_swqe *swqe,
- u32 lkey)
-{
- int skb_data_size = skb_headlen(skb);
- u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0];
- struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry;
- unsigned int immediate_len = SWQE2_MAX_IMM;
-
- swqe->descriptors = 0;
-
- if (skb_is_gso(skb)) {
- swqe->tx_control |= EHEA_SWQE_TSO;
- swqe->mss = skb_shinfo(skb)->gso_size;
- /*
- * For TSO packets we only copy the headers into the
- * immediate area.
- */
- immediate_len = skb_tcp_all_headers(skb);
- }
-
- if (skb_is_gso(skb) || skb_data_size >= SWQE2_MAX_IMM) {
- skb_copy_from_linear_data(skb, imm_data, immediate_len);
- swqe->immediate_data_length = immediate_len;
-
- if (skb_data_size > immediate_len) {
- sg1entry->l_key = lkey;
- sg1entry->len = skb_data_size - immediate_len;
- sg1entry->vaddr =
- ehea_map_vaddr(skb->data + immediate_len);
- swqe->descriptors++;
- }
- } else {
- skb_copy_from_linear_data(skb, imm_data, skb_data_size);
- swqe->immediate_data_length = skb_data_size;
- }
-}
-
-static inline void write_swqe2_data(struct sk_buff *skb, struct net_device *dev,
- struct ehea_swqe *swqe, u32 lkey)
-{
- struct ehea_vsgentry *sg_list, *sg1entry, *sgentry;
- skb_frag_t *frag;
- int nfrags, sg1entry_contains_frag_data, i;
-
- nfrags = skb_shinfo(skb)->nr_frags;
- sg1entry = &swqe->u.immdata_desc.sg_entry;
- sg_list = (struct ehea_vsgentry *)&swqe->u.immdata_desc.sg_list;
- sg1entry_contains_frag_data = 0;
-
- write_swqe2_immediate(skb, swqe, lkey);
-
- /* write descriptors */
- if (nfrags > 0) {
- if (swqe->descriptors == 0) {
- /* sg1entry not yet used */
- frag = &skb_shinfo(skb)->frags[0];
-
- /* copy sg1entry data */
- sg1entry->l_key = lkey;
- sg1entry->len = skb_frag_size(frag);
- sg1entry->vaddr =
- ehea_map_vaddr(skb_frag_address(frag));
- swqe->descriptors++;
- sg1entry_contains_frag_data = 1;
- }
-
- for (i = sg1entry_contains_frag_data; i < nfrags; i++) {
-
- frag = &skb_shinfo(skb)->frags[i];
- sgentry = &sg_list[i - sg1entry_contains_frag_data];
-
- sgentry->l_key = lkey;
- sgentry->len = skb_frag_size(frag);
- sgentry->vaddr = ehea_map_vaddr(skb_frag_address(frag));
- swqe->descriptors++;
- }
- }
-}
-
-static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid)
-{
- int ret = 0;
- u64 hret;
- u8 reg_type;
-
- /* De/Register untagged packets */
- reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_UNTAGGED;
- hret = ehea_h_reg_dereg_bcmc(port->adapter->handle,
- port->logical_port_id,
- reg_type, port->mac_addr, 0, hcallid);
- if (hret != H_SUCCESS) {
- pr_err("%sregistering bc address failed (tagged)\n",
- hcallid == H_REG_BCMC ? "" : "de");
- ret = -EIO;
- goto out_herr;
- }
-
- /* De/Register VLAN packets */
- reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_VLANID_ALL;
- hret = ehea_h_reg_dereg_bcmc(port->adapter->handle,
- port->logical_port_id,
- reg_type, port->mac_addr, 0, hcallid);
- if (hret != H_SUCCESS) {
- pr_err("%sregistering bc address failed (vlan)\n",
- hcallid == H_REG_BCMC ? "" : "de");
- ret = -EIO;
- }
-out_herr:
- return ret;
-}
-
-static int ehea_set_mac_addr(struct net_device *dev, void *sa)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct sockaddr *mac_addr = sa;
- struct hcp_ehea_port_cb0 *cb0;
- int ret;
- u64 hret;
-
- if (!is_valid_ether_addr(mac_addr->sa_data)) {
- ret = -EADDRNOTAVAIL;
- goto out;
- }
-
- cb0 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb0) {
- pr_err("no mem for cb0\n");
- ret = -ENOMEM;
- goto out;
- }
-
- memcpy(&(cb0->port_mac_addr), &(mac_addr->sa_data[0]), ETH_ALEN);
-
- cb0->port_mac_addr = cb0->port_mac_addr >> 16;
-
- hret = ehea_h_modify_ehea_port(port->adapter->handle,
- port->logical_port_id, H_PORT_CB0,
- EHEA_BMASK_SET(H_PORT_CB0_MAC, 1), cb0);
- if (hret != H_SUCCESS) {
- ret = -EIO;
- goto out_free;
- }
-
- eth_hw_addr_set(dev, mac_addr->sa_data);
-
- /* Deregister old MAC in pHYP */
- if (port->state == EHEA_PORT_UP) {
- ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
- if (ret)
- goto out_upregs;
- }
-
- port->mac_addr = cb0->port_mac_addr << 16;
-
- /* Register new MAC in pHYP */
- if (port->state == EHEA_PORT_UP) {
- ret = ehea_broadcast_reg_helper(port, H_REG_BCMC);
- if (ret)
- goto out_upregs;
- }
-
- ret = 0;
-
-out_upregs:
- ehea_update_bcmc_registrations();
-out_free:
- free_page((unsigned long)cb0);
-out:
- return ret;
-}
-
-static void ehea_promiscuous_error(u64 hret, int enable)
-{
- if (hret == H_AUTHORITY)
- pr_info("Hypervisor denied %sabling promiscuous mode\n",
- enable == 1 ? "en" : "dis");
- else
- pr_err("failed %sabling promiscuous mode\n",
- enable == 1 ? "en" : "dis");
-}
-
-static void ehea_promiscuous(struct net_device *dev, int enable)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct hcp_ehea_port_cb7 *cb7;
- u64 hret;
-
- if (enable == port->promisc)
- return;
-
- cb7 = (void *)get_zeroed_page(GFP_ATOMIC);
- if (!cb7) {
- pr_err("no mem for cb7\n");
- goto out;
- }
-
- /* Modify Pxs_DUCQPN in CB7 */
- cb7->def_uc_qpn = enable == 1 ? port->port_res[0].qp->fw_handle : 0;
-
- hret = ehea_h_modify_ehea_port(port->adapter->handle,
- port->logical_port_id,
- H_PORT_CB7, H_PORT_CB7_DUCQPN, cb7);
- if (hret) {
- ehea_promiscuous_error(hret, enable);
- goto out;
- }
-
- port->promisc = enable;
-out:
- free_page((unsigned long)cb7);
-}
-
-static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr,
- u32 hcallid)
-{
- u64 hret;
- u8 reg_type;
-
- reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_UNTAGGED;
- if (mc_mac_addr == 0)
- reg_type |= EHEA_BCMC_SCOPE_ALL;
-
- hret = ehea_h_reg_dereg_bcmc(port->adapter->handle,
- port->logical_port_id,
- reg_type, mc_mac_addr, 0, hcallid);
- if (hret)
- goto out;
-
- reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_VLANID_ALL;
- if (mc_mac_addr == 0)
- reg_type |= EHEA_BCMC_SCOPE_ALL;
-
- hret = ehea_h_reg_dereg_bcmc(port->adapter->handle,
- port->logical_port_id,
- reg_type, mc_mac_addr, 0, hcallid);
-out:
- return hret;
-}
-
-static int ehea_drop_multicast_list(struct net_device *dev)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_mc_list *mc_entry = port->mc_list;
- struct list_head *pos;
- struct list_head *temp;
- int ret = 0;
- u64 hret;
-
- list_for_each_safe(pos, temp, &(port->mc_list->list)) {
- mc_entry = list_entry(pos, struct ehea_mc_list, list);
-
- hret = ehea_multicast_reg_helper(port, mc_entry->macaddr,
- H_DEREG_BCMC);
- if (hret) {
- pr_err("failed deregistering mcast MAC\n");
- ret = -EIO;
- }
-
- list_del(pos);
- kfree(mc_entry);
- }
- return ret;
-}
-
-static void ehea_allmulti(struct net_device *dev, int enable)
-{
- struct ehea_port *port = netdev_priv(dev);
- u64 hret;
-
- if (!port->allmulti) {
- if (enable) {
- /* Enable ALLMULTI */
- ehea_drop_multicast_list(dev);
- hret = ehea_multicast_reg_helper(port, 0, H_REG_BCMC);
- if (!hret)
- port->allmulti = 1;
- else
- netdev_err(dev,
- "failed enabling IFF_ALLMULTI\n");
- }
- } else {
- if (!enable) {
- /* Disable ALLMULTI */
- hret = ehea_multicast_reg_helper(port, 0, H_DEREG_BCMC);
- if (!hret)
- port->allmulti = 0;
- else
- netdev_err(dev,
- "failed disabling IFF_ALLMULTI\n");
- }
- }
-}
-
-static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr)
-{
- struct ehea_mc_list *ehea_mcl_entry;
- u64 hret;
-
- ehea_mcl_entry = kzalloc_obj(*ehea_mcl_entry, GFP_ATOMIC);
- if (!ehea_mcl_entry)
- return;
-
- INIT_LIST_HEAD(&ehea_mcl_entry->list);
-
- memcpy(&ehea_mcl_entry->macaddr, mc_mac_addr, ETH_ALEN);
-
- hret = ehea_multicast_reg_helper(port, ehea_mcl_entry->macaddr,
- H_REG_BCMC);
- if (!hret)
- list_add(&ehea_mcl_entry->list, &port->mc_list->list);
- else {
- pr_err("failed registering mcast MAC\n");
- kfree(ehea_mcl_entry);
- }
-}
-
-static void ehea_set_multicast_list(struct net_device *dev)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct netdev_hw_addr *ha;
- int ret;
-
- ehea_promiscuous(dev, !!(dev->flags & IFF_PROMISC));
-
- if (dev->flags & IFF_ALLMULTI) {
- ehea_allmulti(dev, 1);
- goto out;
- }
- ehea_allmulti(dev, 0);
-
- if (!netdev_mc_empty(dev)) {
- ret = ehea_drop_multicast_list(dev);
- if (ret) {
- /* Dropping the current multicast list failed.
- * Enabling ALL_MULTI is the best we can do.
- */
- ehea_allmulti(dev, 1);
- }
-
- if (netdev_mc_count(dev) > port->adapter->max_mc_mac) {
- pr_info("Mcast registration limit reached (0x%llx). Use ALLMULTI!\n",
- port->adapter->max_mc_mac);
- goto out;
- }
-
- netdev_for_each_mc_addr(ha, dev)
- ehea_add_multicast_entry(port, ha->addr);
-
- }
-out:
- ehea_update_bcmc_registrations();
-}
-
-static void xmit_common(struct sk_buff *skb, struct ehea_swqe *swqe)
-{
- swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT | EHEA_SWQE_CRC;
-
- if (vlan_get_protocol(skb) != htons(ETH_P_IP))
- return;
-
- if (skb->ip_summed == CHECKSUM_PARTIAL)
- swqe->tx_control |= EHEA_SWQE_IP_CHECKSUM;
-
- swqe->ip_start = skb_network_offset(skb);
- swqe->ip_end = swqe->ip_start + ip_hdrlen(skb) - 1;
-
- switch (ip_hdr(skb)->protocol) {
- case IPPROTO_UDP:
- if (skb->ip_summed == CHECKSUM_PARTIAL)
- swqe->tx_control |= EHEA_SWQE_TCP_CHECKSUM;
-
- swqe->tcp_offset = swqe->ip_end + 1 +
- offsetof(struct udphdr, check);
- break;
-
- case IPPROTO_TCP:
- if (skb->ip_summed == CHECKSUM_PARTIAL)
- swqe->tx_control |= EHEA_SWQE_TCP_CHECKSUM;
-
- swqe->tcp_offset = swqe->ip_end + 1 +
- offsetof(struct tcphdr, check);
- break;
- }
-}
-
-static void ehea_xmit2(struct sk_buff *skb, struct net_device *dev,
- struct ehea_swqe *swqe, u32 lkey)
-{
- swqe->tx_control |= EHEA_SWQE_DESCRIPTORS_PRESENT;
-
- xmit_common(skb, swqe);
-
- write_swqe2_data(skb, dev, swqe, lkey);
-}
-
-static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev,
- struct ehea_swqe *swqe)
-{
- u8 *imm_data = &swqe->u.immdata_nodesc.immediate_data[0];
-
- xmit_common(skb, swqe);
-
- if (!skb->data_len)
- skb_copy_from_linear_data(skb, imm_data, skb->len);
- else
- skb_copy_bits(skb, 0, imm_data, skb->len);
-
- swqe->immediate_data_length = skb->len;
- dev_consume_skb_any(skb);
-}
-
-static netdev_tx_t ehea_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_swqe *swqe;
- u32 lkey;
- int swqe_index;
- struct ehea_port_res *pr;
- struct netdev_queue *txq;
-
- pr = &port->port_res[skb_get_queue_mapping(skb)];
- txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
-
- swqe = ehea_get_swqe(pr->qp, &swqe_index);
- memset(swqe, 0, SWQE_HEADER_SIZE);
- atomic_dec(&pr->swqe_avail);
-
- if (skb_vlan_tag_present(skb)) {
- swqe->tx_control |= EHEA_SWQE_VLAN_INSERT;
- swqe->vlan_tag = skb_vlan_tag_get(skb);
- }
-
- pr->tx_packets++;
- pr->tx_bytes += skb->len;
-
- if (skb->len <= SWQE3_MAX_IMM) {
- u32 sig_iv = port->sig_comp_iv;
- u32 swqe_num = pr->swqe_id_counter;
- ehea_xmit3(skb, dev, swqe);
- swqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE3_TYPE)
- | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, swqe_num);
- if (pr->swqe_ll_count >= (sig_iv - 1)) {
- swqe->wr_id |= EHEA_BMASK_SET(EHEA_WR_ID_REFILL,
- sig_iv);
- swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION;
- pr->swqe_ll_count = 0;
- } else
- pr->swqe_ll_count += 1;
- } else {
- swqe->wr_id =
- EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE2_TYPE)
- | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, pr->swqe_id_counter)
- | EHEA_BMASK_SET(EHEA_WR_ID_REFILL, 1)
- | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, pr->sq_skba.index);
- pr->sq_skba.arr[pr->sq_skba.index] = skb;
-
- pr->sq_skba.index++;
- pr->sq_skba.index &= (pr->sq_skba.len - 1);
-
- lkey = pr->send_mr.lkey;
- ehea_xmit2(skb, dev, swqe, lkey);
- swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION;
- }
- pr->swqe_id_counter += 1;
-
- netif_info(port, tx_queued, dev,
- "post swqe on QP %d\n", pr->qp->init_attr.qp_nr);
- if (netif_msg_tx_queued(port))
- ehea_dump(swqe, 512, "swqe");
-
- if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) {
- netif_tx_stop_queue(txq);
- swqe->tx_control |= EHEA_SWQE_PURGE;
- }
-
- ehea_post_swqe(pr->qp, swqe);
-
- if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) {
- pr->p_stats.queue_stopped++;
- netif_tx_stop_queue(txq);
- }
-
- return NETDEV_TX_OK;
-}
-
-static int ehea_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_adapter *adapter = port->adapter;
- struct hcp_ehea_port_cb1 *cb1;
- int index;
- u64 hret;
- int err = 0;
-
- cb1 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb1) {
- pr_err("no mem for cb1\n");
- err = -ENOMEM;
- goto out;
- }
-
- hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id,
- H_PORT_CB1, H_PORT_CB1_ALL, cb1);
- if (hret != H_SUCCESS) {
- pr_err("query_ehea_port failed\n");
- err = -EINVAL;
- goto out;
- }
-
- index = (vid / 64);
- cb1->vlan_filter[index] |= ((u64)(0x8000000000000000 >> (vid & 0x3F)));
-
- hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id,
- H_PORT_CB1, H_PORT_CB1_ALL, cb1);
- if (hret != H_SUCCESS) {
- pr_err("modify_ehea_port failed\n");
- err = -EINVAL;
- }
-out:
- free_page((unsigned long)cb1);
- return err;
-}
-
-static int ehea_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_adapter *adapter = port->adapter;
- struct hcp_ehea_port_cb1 *cb1;
- int index;
- u64 hret;
- int err = 0;
-
- cb1 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb1) {
- pr_err("no mem for cb1\n");
- err = -ENOMEM;
- goto out;
- }
-
- hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id,
- H_PORT_CB1, H_PORT_CB1_ALL, cb1);
- if (hret != H_SUCCESS) {
- pr_err("query_ehea_port failed\n");
- err = -EINVAL;
- goto out;
- }
-
- index = (vid / 64);
- cb1->vlan_filter[index] &= ~((u64)(0x8000000000000000 >> (vid & 0x3F)));
-
- hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id,
- H_PORT_CB1, H_PORT_CB1_ALL, cb1);
- if (hret != H_SUCCESS) {
- pr_err("modify_ehea_port failed\n");
- err = -EINVAL;
- }
-out:
- free_page((unsigned long)cb1);
- return err;
-}
-
-static int ehea_activate_qp(struct ehea_adapter *adapter, struct ehea_qp *qp)
-{
- int ret = -EIO;
- u64 hret;
- u16 dummy16 = 0;
- u64 dummy64 = 0;
- struct hcp_modify_qp_cb0 *cb0;
-
- cb0 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb0) {
- ret = -ENOMEM;
- goto out;
- }
-
- hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0);
- if (hret != H_SUCCESS) {
- pr_err("query_ehea_qp failed (1)\n");
- goto out;
- }
-
- cb0->qp_ctl_reg = H_QP_CR_STATE_INITIALIZED;
- hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0,
- &dummy64, &dummy64, &dummy16, &dummy16);
- if (hret != H_SUCCESS) {
- pr_err("modify_ehea_qp failed (1)\n");
- goto out;
- }
-
- hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0);
- if (hret != H_SUCCESS) {
- pr_err("query_ehea_qp failed (2)\n");
- goto out;
- }
-
- cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_INITIALIZED;
- hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0,
- &dummy64, &dummy64, &dummy16, &dummy16);
- if (hret != H_SUCCESS) {
- pr_err("modify_ehea_qp failed (2)\n");
- goto out;
- }
-
- hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0);
- if (hret != H_SUCCESS) {
- pr_err("query_ehea_qp failed (3)\n");
- goto out;
- }
-
- cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_RDY2SND;
- hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0,
- &dummy64, &dummy64, &dummy16, &dummy16);
- if (hret != H_SUCCESS) {
- pr_err("modify_ehea_qp failed (3)\n");
- goto out;
- }
-
- hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0);
- if (hret != H_SUCCESS) {
- pr_err("query_ehea_qp failed (4)\n");
- goto out;
- }
-
- ret = 0;
-out:
- free_page((unsigned long)cb0);
- return ret;
-}
-
-static int ehea_port_res_setup(struct ehea_port *port, int def_qps)
-{
- int ret, i;
- struct port_res_cfg pr_cfg, pr_cfg_small_rx;
- enum ehea_eq_type eq_type = EHEA_EQ;
-
- port->qp_eq = ehea_create_eq(port->adapter, eq_type,
- EHEA_MAX_ENTRIES_EQ, 1);
- if (!port->qp_eq) {
- ret = -EINVAL;
- pr_err("ehea_create_eq failed (qp_eq)\n");
- goto out_kill_eq;
- }
-
- pr_cfg.max_entries_rcq = rq1_entries + rq2_entries + rq3_entries;
- pr_cfg.max_entries_scq = sq_entries * 2;
- pr_cfg.max_entries_sq = sq_entries;
- pr_cfg.max_entries_rq1 = rq1_entries;
- pr_cfg.max_entries_rq2 = rq2_entries;
- pr_cfg.max_entries_rq3 = rq3_entries;
-
- pr_cfg_small_rx.max_entries_rcq = 1;
- pr_cfg_small_rx.max_entries_scq = sq_entries;
- pr_cfg_small_rx.max_entries_sq = sq_entries;
- pr_cfg_small_rx.max_entries_rq1 = 1;
- pr_cfg_small_rx.max_entries_rq2 = 1;
- pr_cfg_small_rx.max_entries_rq3 = 1;
-
- for (i = 0; i < def_qps; i++) {
- ret = ehea_init_port_res(port, &port->port_res[i], &pr_cfg, i);
- if (ret)
- goto out_clean_pr;
- }
- for (i = def_qps; i < def_qps; i++) {
- ret = ehea_init_port_res(port, &port->port_res[i],
- &pr_cfg_small_rx, i);
- if (ret)
- goto out_clean_pr;
- }
-
- return 0;
-
-out_clean_pr:
- while (--i >= 0)
- ehea_clean_portres(port, &port->port_res[i]);
-
-out_kill_eq:
- ehea_destroy_eq(port->qp_eq);
- return ret;
-}
-
-static int ehea_clean_all_portres(struct ehea_port *port)
-{
- int ret = 0;
- int i;
-
- for (i = 0; i < port->num_def_qps; i++)
- ret |= ehea_clean_portres(port, &port->port_res[i]);
-
- ret |= ehea_destroy_eq(port->qp_eq);
-
- return ret;
-}
-
-static void ehea_remove_adapter_mr(struct ehea_adapter *adapter)
-{
- if (adapter->active_ports)
- return;
-
- ehea_rem_mr(&adapter->mr);
-}
-
-static int ehea_add_adapter_mr(struct ehea_adapter *adapter)
-{
- if (adapter->active_ports)
- return 0;
-
- return ehea_reg_kernel_mr(adapter, &adapter->mr);
-}
-
-static int ehea_up(struct net_device *dev)
-{
- int ret, i;
- struct ehea_port *port = netdev_priv(dev);
-
- if (port->state == EHEA_PORT_UP)
- return 0;
-
- ret = ehea_port_res_setup(port, port->num_def_qps);
- if (ret) {
- netdev_err(dev, "port_res_failed\n");
- goto out;
- }
-
- /* Set default QP for this port */
- ret = ehea_configure_port(port);
- if (ret) {
- netdev_err(dev, "ehea_configure_port failed. ret:%d\n", ret);
- goto out_clean_pr;
- }
-
- ret = ehea_reg_interrupts(dev);
- if (ret) {
- netdev_err(dev, "reg_interrupts failed. ret:%d\n", ret);
- goto out_clean_pr;
- }
-
- for (i = 0; i < port->num_def_qps; i++) {
- ret = ehea_activate_qp(port->adapter, port->port_res[i].qp);
- if (ret) {
- netdev_err(dev, "activate_qp failed\n");
- goto out_free_irqs;
- }
- }
-
- for (i = 0; i < port->num_def_qps; i++) {
- ret = ehea_fill_port_res(&port->port_res[i]);
- if (ret) {
- netdev_err(dev, "out_free_irqs\n");
- goto out_free_irqs;
- }
- }
-
- ret = ehea_broadcast_reg_helper(port, H_REG_BCMC);
- if (ret) {
- ret = -EIO;
- goto out_free_irqs;
- }
-
- port->state = EHEA_PORT_UP;
-
- ret = 0;
- goto out;
-
-out_free_irqs:
- ehea_free_interrupts(dev);
-
-out_clean_pr:
- ehea_clean_all_portres(port);
-out:
- if (ret)
- netdev_info(dev, "Failed starting. ret=%i\n", ret);
-
- ehea_update_bcmc_registrations();
- ehea_update_firmware_handles();
-
- return ret;
-}
-
-static void port_napi_disable(struct ehea_port *port)
-{
- int i;
-
- for (i = 0; i < port->num_def_qps; i++)
- napi_disable(&port->port_res[i].napi);
-}
-
-static void port_napi_enable(struct ehea_port *port)
-{
- int i;
-
- for (i = 0; i < port->num_def_qps; i++)
- napi_enable(&port->port_res[i].napi);
-}
-
-static int ehea_open(struct net_device *dev)
-{
- int ret;
- struct ehea_port *port = netdev_priv(dev);
-
- mutex_lock(&port->port_lock);
-
- netif_info(port, ifup, dev, "enabling port\n");
-
- netif_carrier_off(dev);
-
- ret = ehea_up(dev);
- if (!ret) {
- port_napi_enable(port);
- netif_tx_start_all_queues(dev);
- }
-
- mutex_unlock(&port->port_lock);
- schedule_delayed_work(&port->stats_work,
- round_jiffies_relative(msecs_to_jiffies(1000)));
-
- return ret;
-}
-
-static int ehea_down(struct net_device *dev)
-{
- int ret;
- struct ehea_port *port = netdev_priv(dev);
-
- if (port->state == EHEA_PORT_DOWN)
- return 0;
-
- ehea_drop_multicast_list(dev);
- ehea_allmulti(dev, 0);
- ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
-
- ehea_free_interrupts(dev);
-
- port->state = EHEA_PORT_DOWN;
-
- ehea_update_bcmc_registrations();
-
- ret = ehea_clean_all_portres(port);
- if (ret)
- netdev_info(dev, "Failed freeing resources. ret=%i\n", ret);
-
- ehea_update_firmware_handles();
-
- return ret;
-}
-
-static int ehea_stop(struct net_device *dev)
-{
- int ret;
- struct ehea_port *port = netdev_priv(dev);
-
- netif_info(port, ifdown, dev, "disabling port\n");
-
- set_bit(__EHEA_DISABLE_PORT_RESET, &port->flags);
- cancel_work_sync(&port->reset_task);
- cancel_delayed_work_sync(&port->stats_work);
- mutex_lock(&port->port_lock);
- netif_tx_stop_all_queues(dev);
- port_napi_disable(port);
- ret = ehea_down(dev);
- mutex_unlock(&port->port_lock);
- clear_bit(__EHEA_DISABLE_PORT_RESET, &port->flags);
- return ret;
-}
-
-static void ehea_purge_sq(struct ehea_qp *orig_qp)
-{
- struct ehea_qp qp = *orig_qp;
- struct ehea_qp_init_attr *init_attr = &qp.init_attr;
- struct ehea_swqe *swqe;
- int wqe_index;
- int i;
-
- for (i = 0; i < init_attr->act_nr_send_wqes; i++) {
- swqe = ehea_get_swqe(&qp, &wqe_index);
- swqe->tx_control |= EHEA_SWQE_PURGE;
- }
-}
-
-static void ehea_flush_sq(struct ehea_port *port)
-{
- int i;
-
- for (i = 0; i < port->num_def_qps; i++) {
- struct ehea_port_res *pr = &port->port_res[i];
- int swqe_max = pr->sq_skba_size - 2 - pr->swqe_ll_count;
- int ret;
-
- ret = wait_event_timeout(port->swqe_avail_wq,
- atomic_read(&pr->swqe_avail) >= swqe_max,
- msecs_to_jiffies(100));
-
- if (!ret) {
- pr_err("WARNING: sq not flushed completely\n");
- break;
- }
- }
-}
-
-static int ehea_stop_qps(struct net_device *dev)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_adapter *adapter = port->adapter;
- struct hcp_modify_qp_cb0 *cb0;
- int ret = -EIO;
- int dret;
- int i;
- u64 hret;
- u64 dummy64 = 0;
- u16 dummy16 = 0;
-
- cb0 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb0) {
- ret = -ENOMEM;
- goto out;
- }
-
- for (i = 0; i < (port->num_def_qps); i++) {
- struct ehea_port_res *pr = &port->port_res[i];
- struct ehea_qp *qp = pr->qp;
-
- /* Purge send queue */
- ehea_purge_sq(qp);
-
- /* Disable queue pair */
- hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF),
- cb0);
- if (hret != H_SUCCESS) {
- pr_err("query_ehea_qp failed (1)\n");
- goto out;
- }
-
- cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8;
- cb0->qp_ctl_reg &= ~H_QP_CR_ENABLED;
-
- hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG,
- 1), cb0, &dummy64,
- &dummy64, &dummy16, &dummy16);
- if (hret != H_SUCCESS) {
- pr_err("modify_ehea_qp failed (1)\n");
- goto out;
- }
-
- hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF),
- cb0);
- if (hret != H_SUCCESS) {
- pr_err("query_ehea_qp failed (2)\n");
- goto out;
- }
-
- /* deregister shared memory regions */
- dret = ehea_rem_smrs(pr);
- if (dret) {
- pr_err("unreg shared memory region failed\n");
- goto out;
- }
- }
-
- ret = 0;
-out:
- free_page((unsigned long)cb0);
-
- return ret;
-}
-
-static void ehea_update_rqs(struct ehea_qp *orig_qp, struct ehea_port_res *pr)
-{
- struct ehea_qp qp = *orig_qp;
- struct ehea_qp_init_attr *init_attr = &qp.init_attr;
- struct ehea_rwqe *rwqe;
- struct sk_buff **skba_rq2 = pr->rq2_skba.arr;
- struct sk_buff **skba_rq3 = pr->rq3_skba.arr;
- struct sk_buff *skb;
- u32 lkey = pr->recv_mr.lkey;
-
-
- int i;
- int index;
-
- for (i = 0; i < init_attr->act_nr_rwqes_rq2 + 1; i++) {
- rwqe = ehea_get_next_rwqe(&qp, 2);
- rwqe->sg_list[0].l_key = lkey;
- index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id);
- skb = skba_rq2[index];
- if (skb)
- rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data);
- }
-
- for (i = 0; i < init_attr->act_nr_rwqes_rq3 + 1; i++) {
- rwqe = ehea_get_next_rwqe(&qp, 3);
- rwqe->sg_list[0].l_key = lkey;
- index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id);
- skb = skba_rq3[index];
- if (skb)
- rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data);
- }
-}
-
-static int ehea_restart_qps(struct net_device *dev)
-{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_adapter *adapter = port->adapter;
- int ret = 0;
- int i;
-
- struct hcp_modify_qp_cb0 *cb0;
- u64 hret;
- u64 dummy64 = 0;
- u16 dummy16 = 0;
-
- cb0 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb0)
- return -ENOMEM;
-
- for (i = 0; i < (port->num_def_qps); i++) {
- struct ehea_port_res *pr = &port->port_res[i];
- struct ehea_qp *qp = pr->qp;
-
- ret = ehea_gen_smrs(pr);
- if (ret) {
- netdev_err(dev, "creation of shared memory regions failed\n");
- goto out;
- }
-
- ehea_update_rqs(qp, pr);
-
- /* Enable queue pair */
- hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF),
- cb0);
- if (hret != H_SUCCESS) {
- netdev_err(dev, "query_ehea_qp failed (1)\n");
- ret = -EFAULT;
- goto out;
- }
-
- cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8;
- cb0->qp_ctl_reg |= H_QP_CR_ENABLED;
-
- hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG,
- 1), cb0, &dummy64,
- &dummy64, &dummy16, &dummy16);
- if (hret != H_SUCCESS) {
- netdev_err(dev, "modify_ehea_qp failed (1)\n");
- ret = -EFAULT;
- goto out;
- }
-
- hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle,
- EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF),
- cb0);
- if (hret != H_SUCCESS) {
- netdev_err(dev, "query_ehea_qp failed (2)\n");
- ret = -EFAULT;
- goto out;
- }
-
- /* refill entire queue */
- ehea_refill_rq1(pr, pr->rq1_skba.index, 0);
- ehea_refill_rq2(pr, 0);
- ehea_refill_rq3(pr, 0);
- }
-out:
- free_page((unsigned long)cb0);
-
- return ret;
-}
-
-static void ehea_reset_port(struct work_struct *work)
-{
- int ret;
- struct ehea_port *port =
- container_of(work, struct ehea_port, reset_task);
- struct net_device *dev = port->netdev;
-
- mutex_lock(&dlpar_mem_lock);
- port->resets++;
- mutex_lock(&port->port_lock);
- netif_tx_disable(dev);
-
- port_napi_disable(port);
-
- ehea_down(dev);
-
- ret = ehea_up(dev);
- if (ret)
- goto out;
-
- ehea_set_multicast_list(dev);
-
- netif_info(port, timer, dev, "reset successful\n");
-
- port_napi_enable(port);
-
- netif_tx_wake_all_queues(dev);
-out:
- mutex_unlock(&port->port_lock);
- mutex_unlock(&dlpar_mem_lock);
-}
-
-static void ehea_rereg_mrs(void)
-{
- int ret, i;
- struct ehea_adapter *adapter;
-
- pr_info("LPAR memory changed - re-initializing driver\n");
-
- list_for_each_entry(adapter, &adapter_list, list)
- if (adapter->active_ports) {
- /* Shutdown all ports */
- for (i = 0; i < EHEA_MAX_PORTS; i++) {
- struct ehea_port *port = adapter->port[i];
- struct net_device *dev;
-
- if (!port)
- continue;
-
- dev = port->netdev;
-
- if (dev->flags & IFF_UP) {
- mutex_lock(&port->port_lock);
- netif_tx_disable(dev);
- ehea_flush_sq(port);
- ret = ehea_stop_qps(dev);
- if (ret) {
- mutex_unlock(&port->port_lock);
- goto out;
- }
- port_napi_disable(port);
- mutex_unlock(&port->port_lock);
- }
- reset_sq_restart_flag(port);
- }
-
- /* Unregister old memory region */
- ret = ehea_rem_mr(&adapter->mr);
- if (ret) {
- pr_err("unregister MR failed - driver inoperable!\n");
- goto out;
- }
- }
-
- clear_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
-
- list_for_each_entry(adapter, &adapter_list, list)
- if (adapter->active_ports) {
- /* Register new memory region */
- ret = ehea_reg_kernel_mr(adapter, &adapter->mr);
- if (ret) {
- pr_err("register MR failed - driver inoperable!\n");
- goto out;
- }
-
- /* Restart all ports */
- for (i = 0; i < EHEA_MAX_PORTS; i++) {
- struct ehea_port *port = adapter->port[i];
-
- if (port) {
- struct net_device *dev = port->netdev;
-
- if (dev->flags & IFF_UP) {
- mutex_lock(&port->port_lock);
- ret = ehea_restart_qps(dev);
- if (!ret) {
- check_sqs(port);
- port_napi_enable(port);
- netif_tx_wake_all_queues(dev);
- } else {
- netdev_err(dev, "Unable to restart QPS\n");
- }
- mutex_unlock(&port->port_lock);
- }
- }
- }
- }
- pr_info("re-initializing driver complete\n");
-out:
- return;
-}
-
-static void ehea_tx_watchdog(struct net_device *dev, unsigned int txqueue)
-{
- struct ehea_port *port = netdev_priv(dev);
-
- if (netif_carrier_ok(dev) &&
- !test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))
- ehea_schedule_port_reset(port);
-}
-
-static int ehea_sense_adapter_attr(struct ehea_adapter *adapter)
-{
- struct hcp_query_ehea *cb;
- u64 hret;
- int ret;
-
- cb = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb) {
- ret = -ENOMEM;
- goto out;
- }
-
- hret = ehea_h_query_ehea(adapter->handle, cb);
-
- if (hret != H_SUCCESS) {
- ret = -EIO;
- goto out_herr;
- }
-
- adapter->max_mc_mac = cb->max_mc_mac - 1;
- ret = 0;
-
-out_herr:
- free_page((unsigned long)cb);
-out:
- return ret;
-}
-
-static int ehea_get_jumboframe_status(struct ehea_port *port, int *jumbo)
-{
- struct hcp_ehea_port_cb4 *cb4;
- u64 hret;
- int ret = 0;
-
- *jumbo = 0;
-
- /* (Try to) enable *jumbo frames */
- cb4 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb4) {
- pr_err("no mem for cb4\n");
- ret = -ENOMEM;
- goto out;
- } else {
- hret = ehea_h_query_ehea_port(port->adapter->handle,
- port->logical_port_id,
- H_PORT_CB4,
- H_PORT_CB4_JUMBO, cb4);
- if (hret == H_SUCCESS) {
- if (cb4->jumbo_frame)
- *jumbo = 1;
- else {
- cb4->jumbo_frame = 1;
- hret = ehea_h_modify_ehea_port(port->adapter->
- handle,
- port->
- logical_port_id,
- H_PORT_CB4,
- H_PORT_CB4_JUMBO,
- cb4);
- if (hret == H_SUCCESS)
- *jumbo = 1;
- }
- } else
- ret = -EINVAL;
-
- free_page((unsigned long)cb4);
- }
-out:
- return ret;
-}
-
-static ssize_t log_port_id_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev);
- return sprintf(buf, "%d", port->logical_port_id);
-}
-
-static DEVICE_ATTR_RO(log_port_id);
-
-static void logical_port_release(struct device *dev)
-{
- struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev);
- of_node_put(port->ofdev.dev.of_node);
-}
-
-static struct device *ehea_register_port(struct ehea_port *port,
- struct device_node *dn)
-{
- int ret;
-
- port->ofdev.dev.of_node = of_node_get(dn);
- port->ofdev.dev.parent = &port->adapter->ofdev->dev;
- port->ofdev.dev.bus = &ibmebus_bus_type;
-
- dev_set_name(&port->ofdev.dev, "port%d", port_name_cnt++);
- port->ofdev.dev.release = logical_port_release;
-
- ret = of_device_register(&port->ofdev);
- if (ret) {
- pr_err("failed to register device. ret=%d\n", ret);
- put_device(&port->ofdev.dev);
- goto out;
- }
-
- ret = device_create_file(&port->ofdev.dev, &dev_attr_log_port_id);
- if (ret) {
- pr_err("failed to register attributes, ret=%d\n", ret);
- goto out_unreg_of_dev;
- }
-
- return &port->ofdev.dev;
-
-out_unreg_of_dev:
- of_device_unregister(&port->ofdev);
-out:
- return NULL;
-}
-
-static void ehea_unregister_port(struct ehea_port *port)
-{
- device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id);
- of_device_unregister(&port->ofdev);
-}
-
-static const struct net_device_ops ehea_netdev_ops = {
- .ndo_open = ehea_open,
- .ndo_stop = ehea_stop,
- .ndo_start_xmit = ehea_start_xmit,
- .ndo_get_stats64 = ehea_get_stats64,
- .ndo_set_mac_address = ehea_set_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_set_rx_mode = ehea_set_multicast_list,
- .ndo_vlan_rx_add_vid = ehea_vlan_rx_add_vid,
- .ndo_vlan_rx_kill_vid = ehea_vlan_rx_kill_vid,
- .ndo_tx_timeout = ehea_tx_watchdog,
-};
-
-static struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter,
- u32 logical_port_id,
- struct device_node *dn)
-{
- int ret;
- struct net_device *dev;
- struct ehea_port *port;
- struct device *port_dev;
- int jumbo;
-
- /* allocate memory for the port structures */
- dev = alloc_etherdev_mq(sizeof(struct ehea_port), EHEA_MAX_PORT_RES);
-
- if (!dev) {
- ret = -ENOMEM;
- goto out_err;
- }
-
- port = netdev_priv(dev);
-
- mutex_init(&port->port_lock);
- port->state = EHEA_PORT_DOWN;
- port->sig_comp_iv = sq_entries / 10;
-
- port->adapter = adapter;
- port->netdev = dev;
- port->logical_port_id = logical_port_id;
-
- port->msg_enable = netif_msg_init(msg_level, EHEA_MSG_DEFAULT);
-
- port->mc_list = kzalloc_obj(struct ehea_mc_list);
- if (!port->mc_list) {
- ret = -ENOMEM;
- goto out_free_ethdev;
- }
-
- INIT_LIST_HEAD(&port->mc_list->list);
-
- ret = ehea_sense_port_attr(port);
- if (ret)
- goto out_free_mc_list;
-
- netif_set_real_num_rx_queues(dev, port->num_def_qps);
- netif_set_real_num_tx_queues(dev, port->num_def_qps);
-
- port_dev = ehea_register_port(port, dn);
- if (!port_dev)
- goto out_free_mc_list;
-
- SET_NETDEV_DEV(dev, port_dev);
-
- /* initialize net_device structure */
- eth_hw_addr_set(dev, (u8 *)&port->mac_addr);
-
- dev->netdev_ops = &ehea_netdev_ops;
- ehea_set_ethtool_ops(dev);
-
- dev->hw_features = NETIF_F_SG | NETIF_F_TSO |
- NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_CTAG_TX;
- dev->features = NETIF_F_SG | NETIF_F_TSO |
- NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
- NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
- NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXCSUM;
- dev->vlan_features = NETIF_F_SG | NETIF_F_TSO | NETIF_F_HIGHDMA |
- NETIF_F_IP_CSUM;
- dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT;
-
- /* MTU range: 68 - 9022 */
- dev->min_mtu = ETH_MIN_MTU;
- dev->max_mtu = EHEA_MAX_PACKET_SIZE;
-
- INIT_WORK(&port->reset_task, ehea_reset_port);
- INIT_DELAYED_WORK(&port->stats_work, ehea_update_stats);
-
- init_waitqueue_head(&port->swqe_avail_wq);
- init_waitqueue_head(&port->restart_wq);
-
- ret = register_netdev(dev);
- if (ret) {
- pr_err("register_netdev failed. ret=%d\n", ret);
- goto out_unreg_port;
- }
-
- ret = ehea_get_jumboframe_status(port, &jumbo);
- if (ret)
- netdev_err(dev, "failed determining jumbo frame status\n");
-
- netdev_info(dev, "Jumbo frames are %sabled\n",
- jumbo == 1 ? "en" : "dis");
-
- adapter->active_ports++;
-
- return port;
-
-out_unreg_port:
- ehea_unregister_port(port);
-
-out_free_mc_list:
- kfree(port->mc_list);
-
-out_free_ethdev:
- free_netdev(dev);
-
-out_err:
- pr_err("setting up logical port with id=%d failed, ret=%d\n",
- logical_port_id, ret);
- return NULL;
-}
-
-static void ehea_shutdown_single_port(struct ehea_port *port)
-{
- struct ehea_adapter *adapter = port->adapter;
-
- cancel_work_sync(&port->reset_task);
- cancel_delayed_work_sync(&port->stats_work);
- unregister_netdev(port->netdev);
- ehea_unregister_port(port);
- kfree(port->mc_list);
- free_netdev(port->netdev);
- adapter->active_ports--;
-}
-
-static int ehea_setup_ports(struct ehea_adapter *adapter)
-{
- struct device_node *lhea_dn;
- struct device_node *eth_dn;
-
- const u32 *dn_log_port_id;
- int i = 0;
-
- lhea_dn = adapter->ofdev->dev.of_node;
- for_each_child_of_node(lhea_dn, eth_dn) {
- dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no",
- NULL);
- if (!dn_log_port_id) {
- pr_err("bad device node: eth_dn name=%pOF\n", eth_dn);
- continue;
- }
-
- if (ehea_add_adapter_mr(adapter)) {
- pr_err("creating MR failed\n");
- of_node_put(eth_dn);
- return -EIO;
- }
-
- adapter->port[i] = ehea_setup_single_port(adapter,
- *dn_log_port_id,
- eth_dn);
- if (adapter->port[i])
- netdev_info(adapter->port[i]->netdev,
- "logical port id #%d\n", *dn_log_port_id);
- else
- ehea_remove_adapter_mr(adapter);
-
- i++;
- }
- return 0;
-}
-
-static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter,
- u32 logical_port_id)
-{
- struct device_node *lhea_dn;
- struct device_node *eth_dn;
- const u32 *dn_log_port_id;
-
- lhea_dn = adapter->ofdev->dev.of_node;
- for_each_child_of_node(lhea_dn, eth_dn) {
- dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no",
- NULL);
- if (dn_log_port_id)
- if (*dn_log_port_id == logical_port_id)
- return eth_dn;
- }
-
- return NULL;
-}
-
-static ssize_t probe_port_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct ehea_adapter *adapter = dev_get_drvdata(dev);
- struct ehea_port *port;
- struct device_node *eth_dn = NULL;
- int i;
-
- u32 logical_port_id;
-
- sscanf(buf, "%d", &logical_port_id);
-
- port = ehea_get_port(adapter, logical_port_id);
-
- if (port) {
- netdev_info(port->netdev, "adding port with logical port id=%d failed: port already configured\n",
- logical_port_id);
- return -EINVAL;
- }
-
- eth_dn = ehea_get_eth_dn(adapter, logical_port_id);
-
- if (!eth_dn) {
- pr_info("no logical port with id %d found\n", logical_port_id);
- return -EINVAL;
- }
-
- if (ehea_add_adapter_mr(adapter)) {
- pr_err("creating MR failed\n");
- of_node_put(eth_dn);
- return -EIO;
- }
-
- port = ehea_setup_single_port(adapter, logical_port_id, eth_dn);
-
- of_node_put(eth_dn);
-
- if (port) {
- for (i = 0; i < EHEA_MAX_PORTS; i++)
- if (!adapter->port[i]) {
- adapter->port[i] = port;
- break;
- }
-
- netdev_info(port->netdev, "added: (logical port id=%d)\n",
- logical_port_id);
- } else {
- ehea_remove_adapter_mr(adapter);
- return -EIO;
- }
-
- return (ssize_t) count;
-}
-
-static ssize_t remove_port_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct ehea_adapter *adapter = dev_get_drvdata(dev);
- struct ehea_port *port;
- int i;
- u32 logical_port_id;
-
- sscanf(buf, "%d", &logical_port_id);
-
- port = ehea_get_port(adapter, logical_port_id);
-
- if (port) {
- netdev_info(port->netdev, "removed: (logical port id=%d)\n",
- logical_port_id);
-
- ehea_shutdown_single_port(port);
-
- for (i = 0; i < EHEA_MAX_PORTS; i++)
- if (adapter->port[i] == port) {
- adapter->port[i] = NULL;
- break;
- }
- } else {
- pr_err("removing port with logical port id=%d failed. port not configured.\n",
- logical_port_id);
- return -EINVAL;
- }
-
- ehea_remove_adapter_mr(adapter);
-
- return (ssize_t) count;
-}
-
-static DEVICE_ATTR_WO(probe_port);
-static DEVICE_ATTR_WO(remove_port);
-
-static int ehea_create_device_sysfs(struct platform_device *dev)
-{
- int ret = device_create_file(&dev->dev, &dev_attr_probe_port);
- if (ret)
- goto out;
-
- ret = device_create_file(&dev->dev, &dev_attr_remove_port);
- if (ret)
- device_remove_file(&dev->dev, &dev_attr_probe_port);
-out:
- return ret;
-}
-
-static void ehea_remove_device_sysfs(struct platform_device *dev)
-{
- device_remove_file(&dev->dev, &dev_attr_probe_port);
- device_remove_file(&dev->dev, &dev_attr_remove_port);
-}
-
-static int ehea_reboot_notifier(struct notifier_block *nb,
- unsigned long action, void *unused)
-{
- if (action == SYS_RESTART) {
- pr_info("Reboot: freeing all eHEA resources\n");
- ibmebus_unregister_driver(&ehea_driver);
- }
- return NOTIFY_DONE;
-}
-
-static struct notifier_block ehea_reboot_nb = {
- .notifier_call = ehea_reboot_notifier,
-};
-
-static int ehea_mem_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- int ret = NOTIFY_BAD;
- struct memory_notify *arg = data;
-
- mutex_lock(&dlpar_mem_lock);
-
- switch (action) {
- case MEM_CANCEL_OFFLINE:
- pr_info("memory offlining canceled");
- fallthrough; /* re-add canceled memory block */
-
- case MEM_ONLINE:
- pr_info("memory is going online");
- set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
- if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages))
- goto out_unlock;
- ehea_rereg_mrs();
- break;
-
- case MEM_GOING_OFFLINE:
- pr_info("memory is going offline");
- set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
- if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages))
- goto out_unlock;
- ehea_rereg_mrs();
- break;
-
- default:
- break;
- }
-
- ehea_update_firmware_handles();
- ret = NOTIFY_OK;
-
-out_unlock:
- mutex_unlock(&dlpar_mem_lock);
- return ret;
-}
-
-static struct notifier_block ehea_mem_nb = {
- .notifier_call = ehea_mem_notifier,
-};
-
-static void ehea_crash_handler(void)
-{
- int i;
-
- if (ehea_fw_handles.arr)
- for (i = 0; i < ehea_fw_handles.num_entries; i++)
- ehea_h_free_resource(ehea_fw_handles.arr[i].adh,
- ehea_fw_handles.arr[i].fwh,
- FORCE_FREE);
-
- if (ehea_bcmc_regs.arr)
- for (i = 0; i < ehea_bcmc_regs.num_entries; i++)
- ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh,
- ehea_bcmc_regs.arr[i].port_id,
- ehea_bcmc_regs.arr[i].reg_type,
- ehea_bcmc_regs.arr[i].macaddr,
- 0, H_DEREG_BCMC);
-}
-
-static atomic_t ehea_memory_hooks_registered;
-
-/* Register memory hooks on probe of first adapter */
-static int ehea_register_memory_hooks(void)
-{
- int ret = 0;
-
- if (atomic_inc_return(&ehea_memory_hooks_registered) > 1)
- return 0;
-
- ret = ehea_create_busmap();
- if (ret) {
- pr_info("ehea_create_busmap failed\n");
- goto out;
- }
-
- ret = register_reboot_notifier(&ehea_reboot_nb);
- if (ret) {
- pr_info("register_reboot_notifier failed\n");
- goto out;
- }
-
- ret = register_memory_notifier(&ehea_mem_nb);
- if (ret) {
- pr_info("register_memory_notifier failed\n");
- goto out2;
- }
-
- ret = crash_shutdown_register(ehea_crash_handler);
- if (ret) {
- pr_info("crash_shutdown_register failed\n");
- goto out3;
- }
-
- return 0;
-
-out3:
- unregister_memory_notifier(&ehea_mem_nb);
-out2:
- unregister_reboot_notifier(&ehea_reboot_nb);
-out:
- atomic_dec(&ehea_memory_hooks_registered);
- return ret;
-}
-
-static void ehea_unregister_memory_hooks(void)
-{
- /* Only remove the hooks if we've registered them */
- if (atomic_read(&ehea_memory_hooks_registered) == 0)
- return;
-
- unregister_reboot_notifier(&ehea_reboot_nb);
- if (crash_shutdown_unregister(ehea_crash_handler))
- pr_info("failed unregistering crash handler\n");
- unregister_memory_notifier(&ehea_mem_nb);
-}
-
-static int ehea_probe_adapter(struct platform_device *dev)
-{
- struct ehea_adapter *adapter;
- const u64 *adapter_handle;
- int ret;
- int i;
-
- ret = ehea_register_memory_hooks();
- if (ret)
- return ret;
-
- if (!dev || !dev->dev.of_node) {
- pr_err("Invalid ibmebus device probed\n");
- return -EINVAL;
- }
-
- adapter = devm_kzalloc(&dev->dev, sizeof(*adapter), GFP_KERNEL);
- if (!adapter) {
- ret = -ENOMEM;
- dev_err(&dev->dev, "no mem for ehea_adapter\n");
- goto out;
- }
-
- list_add(&adapter->list, &adapter_list);
-
- adapter->ofdev = dev;
-
- adapter_handle = of_get_property(dev->dev.of_node, "ibm,hea-handle",
- NULL);
- if (adapter_handle)
- adapter->handle = *adapter_handle;
-
- if (!adapter->handle) {
- dev_err(&dev->dev, "failed getting handle for adapter"
- " '%pOF'\n", dev->dev.of_node);
- ret = -ENODEV;
- goto out_free_ad;
- }
-
- adapter->pd = EHEA_PD_ID;
-
- platform_set_drvdata(dev, adapter);
-
-
- /* initialize adapter and ports */
- /* get adapter properties */
- ret = ehea_sense_adapter_attr(adapter);
- if (ret) {
- dev_err(&dev->dev, "sense_adapter_attr failed: %d\n", ret);
- goto out_free_ad;
- }
-
- adapter->neq = ehea_create_eq(adapter,
- EHEA_NEQ, EHEA_MAX_ENTRIES_EQ, 1);
- if (!adapter->neq) {
- ret = -EIO;
- dev_err(&dev->dev, "NEQ creation failed\n");
- goto out_free_ad;
- }
-
- tasklet_setup(&adapter->neq_tasklet, ehea_neq_tasklet);
-
- ret = ehea_create_device_sysfs(dev);
- if (ret)
- goto out_kill_eq;
-
- ret = ehea_setup_ports(adapter);
- if (ret) {
- dev_err(&dev->dev, "setup_ports failed\n");
- goto out_rem_dev_sysfs;
- }
-
- ret = ibmebus_request_irq(adapter->neq->attr.ist1,
- ehea_interrupt_neq, 0,
- "ehea_neq", adapter);
- if (ret) {
- dev_err(&dev->dev, "requesting NEQ IRQ failed\n");
- goto out_shutdown_ports;
- }
-
- /* Handle any events that might be pending. */
- tasklet_hi_schedule(&adapter->neq_tasklet);
-
- ret = 0;
- goto out;
-
-out_shutdown_ports:
- for (i = 0; i < EHEA_MAX_PORTS; i++)
- if (adapter->port[i]) {
- ehea_shutdown_single_port(adapter->port[i]);
- adapter->port[i] = NULL;
- }
-
-out_rem_dev_sysfs:
- ehea_remove_device_sysfs(dev);
-
-out_kill_eq:
- ehea_destroy_eq(adapter->neq);
-
-out_free_ad:
- list_del(&adapter->list);
-
-out:
- ehea_update_firmware_handles();
-
- return ret;
-}
-
-static void ehea_remove(struct platform_device *dev)
-{
- struct ehea_adapter *adapter = platform_get_drvdata(dev);
- int i;
-
- for (i = 0; i < EHEA_MAX_PORTS; i++)
- if (adapter->port[i]) {
- ehea_shutdown_single_port(adapter->port[i]);
- adapter->port[i] = NULL;
- }
-
- ehea_remove_device_sysfs(dev);
-
- ibmebus_free_irq(adapter->neq->attr.ist1, adapter);
- tasklet_kill(&adapter->neq_tasklet);
-
- ehea_destroy_eq(adapter->neq);
- ehea_remove_adapter_mr(adapter);
- list_del(&adapter->list);
-
- ehea_update_firmware_handles();
-}
-
-static int check_module_parm(void)
-{
- int ret = 0;
-
- if ((rq1_entries < EHEA_MIN_ENTRIES_QP) ||
- (rq1_entries > EHEA_MAX_ENTRIES_RQ1)) {
- pr_info("Bad parameter: rq1_entries\n");
- ret = -EINVAL;
- }
- if ((rq2_entries < EHEA_MIN_ENTRIES_QP) ||
- (rq2_entries > EHEA_MAX_ENTRIES_RQ2)) {
- pr_info("Bad parameter: rq2_entries\n");
- ret = -EINVAL;
- }
- if ((rq3_entries < EHEA_MIN_ENTRIES_QP) ||
- (rq3_entries > EHEA_MAX_ENTRIES_RQ3)) {
- pr_info("Bad parameter: rq3_entries\n");
- ret = -EINVAL;
- }
- if ((sq_entries < EHEA_MIN_ENTRIES_QP) ||
- (sq_entries > EHEA_MAX_ENTRIES_SQ)) {
- pr_info("Bad parameter: sq_entries\n");
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static ssize_t capabilities_show(struct device_driver *drv, char *buf)
-{
- return sprintf(buf, "%d", EHEA_CAPABILITIES);
-}
-
-static DRIVER_ATTR_RO(capabilities);
-
-static int __init ehea_module_init(void)
-{
- int ret;
-
- pr_info("IBM eHEA ethernet device driver (Release %s)\n", DRV_VERSION);
-
- memset(&ehea_fw_handles, 0, sizeof(ehea_fw_handles));
- memset(&ehea_bcmc_regs, 0, sizeof(ehea_bcmc_regs));
-
- mutex_init(&ehea_fw_handles.lock);
- spin_lock_init(&ehea_bcmc_regs.lock);
-
- ret = check_module_parm();
- if (ret)
- goto out;
-
- ret = ibmebus_register_driver(&ehea_driver);
- if (ret) {
- pr_err("failed registering eHEA device driver on ebus\n");
- goto out;
- }
-
- ret = driver_create_file(&ehea_driver.driver,
- &driver_attr_capabilities);
- if (ret) {
- pr_err("failed to register capabilities attribute, ret=%d\n",
- ret);
- goto out2;
- }
-
- return ret;
-
-out2:
- ibmebus_unregister_driver(&ehea_driver);
-out:
- return ret;
-}
-
-static void __exit ehea_module_exit(void)
-{
- driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities);
- ibmebus_unregister_driver(&ehea_driver);
- ehea_unregister_memory_hooks();
- kfree(ehea_fw_handles.arr);
- kfree(ehea_bcmc_regs.arr);
- ehea_destroy_busmap();
-}
-
-module_init(ehea_module_init);
-module_exit(ehea_module_exit);
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_phyp.c b/drivers/net/ethernet/ibm/ehea/ehea_phyp.c
deleted file mode 100644
index e63716e139f5..000000000000
--- a/drivers/net/ethernet/ibm/ehea/ehea_phyp.c
+++ /dev/null
@@ -1,612 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * linux/drivers/net/ethernet/ibm/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>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#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_plpar_hcall_norets(unsigned long opcode,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3,
- unsigned long arg4,
- unsigned long arg5,
- unsigned long arg6,
- unsigned long arg7)
-{
- long ret;
- int i, sleep_msecs;
-
- for (i = 0; i < 5; i++) {
- ret = plpar_hcall_norets(opcode, arg1, arg2, arg3, arg4,
- arg5, arg6, arg7);
-
- if (H_IS_LONG_BUSY(ret)) {
- sleep_msecs = get_longbusy_msecs(ret);
- msleep_interruptible(sleep_msecs);
- continue;
- }
-
- if (ret < H_SUCCESS)
- pr_err("opcode=%lx ret=%lx"
- " arg1=%lx arg2=%lx arg3=%lx arg4=%lx"
- " arg5=%lx arg6=%lx arg7=%lx\n",
- opcode, ret,
- arg1, arg2, arg3, arg4, arg5, arg6, arg7);
-
- return ret;
- }
-
- return H_BUSY;
-}
-
-static long ehea_plpar_hcall9(unsigned long opcode,
- unsigned long *outs, /* array of 9 outputs */
- 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)
-{
- long ret;
- int i, sleep_msecs;
- u8 cb_cat;
-
- for (i = 0; i < 5; i++) {
- ret = plpar_hcall9(opcode, outs,
- arg1, arg2, arg3, arg4, arg5,
- arg6, arg7, arg8, arg9);
-
- if (H_IS_LONG_BUSY(ret)) {
- sleep_msecs = get_longbusy_msecs(ret);
- msleep_interruptible(sleep_msecs);
- continue;
- }
-
- cb_cat = EHEA_BMASK_GET(H_MEHEAPORT_CAT, arg2);
-
- if ((ret < H_SUCCESS) && !(((ret == H_AUTHORITY)
- && (opcode == H_MODIFY_HEA_PORT))
- && (((cb_cat == H_PORT_CB4) && ((arg3 == H_PORT_CB4_JUMBO)
- || (arg3 == H_PORT_CB4_SPEED))) || ((cb_cat == H_PORT_CB7)
- && (arg3 == H_PORT_CB7_DUCQPN)))))
- pr_err("opcode=%lx ret=%lx"
- " arg1=%lx arg2=%lx arg3=%lx arg4=%lx"
- " arg5=%lx arg6=%lx arg7=%lx arg8=%lx"
- " arg9=%lx"
- " out1=%lx out2=%lx out3=%lx out4=%lx"
- " out5=%lx out6=%lx out7=%lx out8=%lx"
- " out9=%lx\n",
- opcode, ret,
- arg1, arg2, arg3, arg4, arg5,
- arg6, arg7, arg8, arg9,
- outs[0], outs[1], outs[2], outs[3], outs[4],
- outs[5], outs[6], outs[7], outs[8]);
- return ret;
- }
-
- 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)
-{
- return ehea_plpar_hcall_norets(H_QUERY_HEA_QP,
- adapter_handle, /* R4 */
- qp_category, /* R5 */
- qp_handle, /* R6 */
- sel_mask, /* R7 */
- __pa(cb_addr), /* R8 */
- 0, 0);
-}
-
-/* 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;
- unsigned long outs[PLPAR_HCALL9_BUFSIZE];
-
- 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);
-
- hret = ehea_plpar_hcall9(H_ALLOC_HEA_RESOURCE,
- outs,
- 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 = outs[0];
- init_attr->qp_nr = (u32)outs[1];
-
- init_attr->act_nr_send_wqes =
- (u16)EHEA_BMASK_GET(H_ALL_RES_QP_ACT_SWQE, outs[2]);
- init_attr->act_nr_rwqes_rq1 =
- (u16)EHEA_BMASK_GET(H_ALL_RES_QP_ACT_R1WQE, outs[2]);
- init_attr->act_nr_rwqes_rq2 =
- (u16)EHEA_BMASK_GET(H_ALL_RES_QP_ACT_R2WQE, outs[2]);
- init_attr->act_nr_rwqes_rq3 =
- (u16)EHEA_BMASK_GET(H_ALL_RES_QP_ACT_R3WQE, outs[2]);
-
- 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, outs[4]);
- init_attr->nr_rq1_pages =
- (u32)EHEA_BMASK_GET(H_ALL_RES_QP_SIZE_RQ1, outs[4]);
- init_attr->nr_rq2_pages =
- (u32)EHEA_BMASK_GET(H_ALL_RES_QP_SIZE_RQ2, outs[5]);
- init_attr->nr_rq3_pages =
- (u32)EHEA_BMASK_GET(H_ALL_RES_QP_SIZE_RQ3, outs[5]);
-
- init_attr->liobn_sq =
- (u32)EHEA_BMASK_GET(H_ALL_RES_QP_LIOBN_SQ, outs[7]);
- init_attr->liobn_rq1 =
- (u32)EHEA_BMASK_GET(H_ALL_RES_QP_LIOBN_RQ1, outs[7]);
- init_attr->liobn_rq2 =
- (u32)EHEA_BMASK_GET(H_ALL_RES_QP_LIOBN_RQ2, outs[8]);
- init_attr->liobn_rq3 =
- (u32)EHEA_BMASK_GET(H_ALL_RES_QP_LIOBN_RQ3, outs[8]);
-
- if (!hret)
- hcp_epas_ctor(h_epas, outs[6], outs[6]);
-
- 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;
- unsigned long outs[PLPAR_HCALL9_BUFSIZE];
-
- hret = ehea_plpar_hcall9(H_ALLOC_HEA_RESOURCE,
- outs,
- 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 = outs[0];
- cq_attr->act_nr_of_cqes = outs[3];
- cq_attr->nr_pages = outs[4];
-
- if (!hret)
- hcp_epas_ctor(epas, outs[5], outs[6]);
-
- 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, allocate_controls;
- unsigned long outs[PLPAR_HCALL9_BUFSIZE];
-
- /* 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_plpar_hcall9(H_ALLOC_HEA_RESOURCE,
- outs,
- adapter_handle, /* R4 */
- allocate_controls, /* R5 */
- eq_attr->max_nr_of_eqes, /* R6 */
- 0, 0, 0, 0, 0, 0); /* R7-R10 */
-
- *eq_handle = outs[0];
- eq_attr->act_nr_of_eqes = outs[3];
- eq_attr->nr_pages = outs[4];
- eq_attr->ist1 = outs[5];
- eq_attr->ist2 = outs[6];
- eq_attr->ist3 = outs[7];
- eq_attr->ist4 = outs[8];
-
- 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;
- unsigned long outs[PLPAR_HCALL9_BUFSIZE];
-
- hret = ehea_plpar_hcall9(H_MODIFY_HEA_QP,
- outs,
- adapter_handle, /* R4 */
- (u64) cat, /* R5 */
- qp_handle, /* R6 */
- sel_mask, /* R7 */
- __pa(cb_addr), /* R8 */
- 0, 0, 0, 0); /* R9-R12 */
-
- *inv_attr_id = outs[0];
- *out_swr = outs[3];
- *out_rwr = outs[4];
- *proc_mask = outs[5];
-
- 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 reg_control;
-
- reg_control = EHEA_BMASK_SET(H_REG_RPAGE_PAGE_SIZE, pagesize)
- | EHEA_BMASK_SET(H_REG_RPAGE_QT, queue_type);
-
- return ehea_plpar_hcall_norets(H_REGISTER_HEA_RPAGES,
- adapter_handle, /* R4 */
- reg_control, /* R5 */
- resource_handle, /* R6 */
- log_pageaddr, /* R7 */
- count, /* R8 */
- 0, 0); /* R9-R10 */
-}
-
-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;
- unsigned long outs[PLPAR_HCALL9_BUFSIZE];
-
- hret = ehea_plpar_hcall9(H_REGISTER_SMR,
- outs,
- 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 = outs[0];
- mr->lkey = (u32)outs[2];
-
- return hret;
-}
-
-u64 ehea_h_disable_and_get_hea(const u64 adapter_handle, const u64 qp_handle)
-{
- unsigned long outs[PLPAR_HCALL9_BUFSIZE];
-
- return ehea_plpar_hcall9(H_DISABLE_AND_GET_HEA,
- outs,
- adapter_handle, /* R4 */
- H_DISABLE_GET_EHEA_WQE_P, /* R5 */
- qp_handle, /* R6 */
- 0, 0, 0, 0, 0, 0); /* R7-R12 */
-}
-
-u64 ehea_h_free_resource(const u64 adapter_handle, const u64 res_handle,
- u64 force_bit)
-{
- return ehea_plpar_hcall_norets(H_FREE_RESOURCE,
- adapter_handle, /* R4 */
- res_handle, /* R5 */
- force_bit,
- 0, 0, 0, 0); /* R7-R10 */
-}
-
-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;
- unsigned long outs[PLPAR_HCALL9_BUFSIZE];
-
- hret = ehea_plpar_hcall9(H_ALLOC_HEA_RESOURCE,
- outs,
- adapter_handle, /* R4 */
- 5, /* R5 */
- vaddr, /* R6 */
- length, /* R7 */
- (((u64) access_ctrl) << 32ULL), /* R8 */
- pd, /* R9 */
- 0, 0, 0); /* R10-R12 */
-
- *mr_handle = outs[0];
- *lkey = (u32)outs[2];
- 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 & ~PAGE_MASK)) {
- pr_err("not on pageboundary\n");
- 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, cb_logaddr;
-
- cb_logaddr = __pa(cb_addr);
-
- hret = ehea_plpar_hcall_norets(H_QUERY_HEA,
- adapter_handle, /* R4 */
- cb_logaddr, /* R5 */
- 0, 0, 0, 0, 0); /* R6-R10 */
-#ifdef DEBUG
- ehea_dump(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;
- u64 cb_logaddr = __pa(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_plpar_hcall_norets(H_QUERY_HEA_PORT,
- adapter_handle, /* R4 */
- port_info, /* R5 */
- select_mask, /* R6 */
- arr_index, /* R7 */
- cb_logaddr, /* R8 */
- 0, 0); /* R9-R10 */
-}
-
-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)
-{
- unsigned long outs[PLPAR_HCALL9_BUFSIZE];
- u64 port_info;
- u64 arr_index = 0;
- u64 cb_logaddr = __pa(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_plpar_hcall9(H_MODIFY_HEA_PORT,
- outs,
- adapter_handle, /* R4 */
- port_info, /* R5 */
- select_mask, /* R6 */
- arr_index, /* R7 */
- cb_logaddr, /* R8 */
- 0, 0, 0, 0); /* R9-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;
- 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_plpar_hcall_norets(hcall_id,
- adapter_handle, /* R4 */
- r5_port_num, /* R5 */
- r6_reg_type, /* R6 */
- r7_mc_mac_addr, /* R7 */
- r8_vlan_id, /* R8 */
- 0, 0); /* R9-R12 */
-}
-
-u64 ehea_h_reset_events(const u64 adapter_handle, const u64 neq_handle,
- const u64 event_mask)
-{
- return ehea_plpar_hcall_norets(H_RESET_EVENTS,
- adapter_handle, /* R4 */
- neq_handle, /* R5 */
- event_mask, /* R6 */
- 0, 0, 0, 0); /* R7-R12 */
-}
-
-u64 ehea_h_error_data(const u64 adapter_handle, const u64 ressource_handle,
- void *rblock)
-{
- return ehea_plpar_hcall_norets(H_ERROR_DATA,
- adapter_handle, /* R4 */
- ressource_handle, /* R5 */
- __pa(rblock), /* R6 */
- 0, 0, 0, 0); /* R7-R12 */
-}
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_phyp.h b/drivers/net/ethernet/ibm/ehea/ehea_phyp.h
deleted file mode 100644
index e8b56c103410..000000000000
--- a/drivers/net/ethernet/ibm/ehea/ehea_phyp.h
+++ /dev/null
@@ -1,433 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * linux/drivers/net/ethernet/ibm/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>
- */
-
-#ifndef __EHEA_PHYP_H__
-#define __EHEA_PHYP_H__
-
-#include <linux/delay.h>
-#include <asm/hvcall.h>
-#include "ehea.h"
-#include "ehea_hw.h"
-
-/* Some abbreviations used here:
- *
- * hcp_* - structures, variables and functions releated to Hypervisor Calls
- */
-
-/* Number of pages which can be registered at once by H_REGISTER_HEA_RPAGES */
-#define EHEA_MAX_RPAGE 512
-
-/* 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)
-{
- /* To support 64k pages we must round to 64k page boundary */
- epas->kernel.addr = ioremap((paddr_kernel & PAGE_MASK), PAGE_SIZE) +
- (paddr_kernel & ~PAGE_MASK);
- epas->user.addr = paddr_user;
-}
-
-static inline void hcp_epas_dtor(struct h_epas *epas)
-{
- if (epas->kernel.addr)
- iounmap((void __iomem *)((u64)epas->kernel.addr & PAGE_MASK));
-
- 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 */
-#define H_QP_CR_RES_STATE 0x0000007F00000000ULL /* Resultant state */
-
-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);
-
-#define FORCE_FREE 1
-#define NORMAL_FREE 0
-
-u64 ehea_h_free_resource(const u64 adapter_handle, const u64 res_handle,
- u64 force_bit);
-
-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(60, 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);
-
-u64 ehea_h_error_data(const u64 adapter_handle, const u64 ressource_handle,
- void *rblock);
-
-#endif /* __EHEA_PHYP_H__ */
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_qmr.c b/drivers/net/ethernet/ibm/ehea/ehea_qmr.c
deleted file mode 100644
index 60629a0032b2..000000000000
--- a/drivers/net/ethernet/ibm/ehea/ehea_qmr.c
+++ /dev/null
@@ -1,999 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * linux/drivers/net/ethernet/ibm/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>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include "ehea.h"
-#include "ehea_phyp.h"
-#include "ehea_qmr.h"
-
-static struct ehea_bmap *ehea_bmap;
-
-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)) {
- pr_err("not on pageboundary\n");
- 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)) {
- pr_err("pagesize conflict! kernel pagesize=%d, ehea pagesize=%d\n",
- (int)PAGE_SIZE, (int)pagesize);
- return -EINVAL;
- }
-
- queue->queue_length = nr_of_pages * pagesize;
- queue->queue_pages = kmalloc_array(nr_of_pages, sizeof(void *),
- GFP_KERNEL);
- if (!queue->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;
- int i, nr_pages;
-
- if (!queue || !queue->queue_pages)
- return;
-
- pages_per_kpage = PAGE_SIZE / queue->pagesize;
-
- 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;
- u64 hret, rpage;
- u32 counter;
- int ret;
- void *vpage;
-
- cq = kzalloc_obj(*cq);
- if (!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;
-
- hret = ehea_h_alloc_resource_cq(adapter->handle, &cq->attr,
- &cq->fw_handle, &cq->epas);
- if (hret != H_SUCCESS) {
- pr_err("alloc_resource_cq failed\n");
- 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) {
- pr_err("hw_qpageit_get_inc failed\n");
- goto out_kill_hwq;
- }
-
- rpage = __pa(vpage);
- hret = ehea_h_register_rpage(adapter->handle,
- 0, EHEA_CQ_REGISTER_ORIG,
- cq->fw_handle, rpage, 1);
- if (hret < H_SUCCESS) {
- pr_err("register_rpage_cq failed ehea_cq=%p hret=%llx counter=%i act_pages=%i\n",
- 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)) {
- pr_err("registration of pages not complete hret=%llx\n",
- hret);
- goto out_kill_hwq;
- }
- } else {
- if (hret != H_PAGE_REGISTERED) {
- pr_err("CQ: registration of page failed hret=%llx\n",
- hret);
- goto out_kill_hwq;
- }
- }
- }
-
- hw_qeit_reset(&cq->hw_queue);
- 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, FORCE_FREE);
-
-out_freemem:
- kfree(cq);
-
-out_nomem:
- return NULL;
-}
-
-static u64 ehea_destroy_cq_res(struct ehea_cq *cq, u64 force)
-{
- u64 hret;
- u64 adapter_handle = cq->adapter->handle;
-
- /* deregister all previous registered pages */
- hret = ehea_h_free_resource(adapter_handle, cq->fw_handle, force);
- if (hret != H_SUCCESS)
- return hret;
-
- hw_queue_dtor(&cq->hw_queue);
- kfree(cq);
-
- return hret;
-}
-
-int ehea_destroy_cq(struct ehea_cq *cq)
-{
- u64 hret, aer, aerr;
- if (!cq)
- return 0;
-
- hcp_epas_dtor(&cq->epas);
- hret = ehea_destroy_cq_res(cq, NORMAL_FREE);
- if (hret == H_R_STATE) {
- ehea_error_data(cq->adapter, cq->fw_handle, &aer, &aerr);
- hret = ehea_destroy_cq_res(cq, FORCE_FREE);
- }
-
- if (hret != H_SUCCESS) {
- pr_err("destroy CQ failed\n");
- return -EIO;
- }
-
- 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_obj(*eq);
- if (!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) {
- pr_err("alloc_resource_eq failed\n");
- goto out_freemem;
- }
-
- ret = hw_queue_ctor(&eq->hw_queue, eq->attr.nr_pages,
- EHEA_PAGESIZE, sizeof(struct ehea_eqe));
- if (ret) {
- pr_err("can't allocate eq pages\n");
- goto out_freeres;
- }
-
- for (i = 0; i < eq->attr.nr_pages; i++) {
- vpage = hw_qpageit_get_inc(&eq->hw_queue);
- if (!vpage) {
- pr_err("hw_qpageit_get_inc failed\n");
- hret = H_RESOURCE;
- goto out_kill_hwq;
- }
-
- rpage = __pa(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)
- 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, FORCE_FREE);
-
-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 = hw_eqit_eq_get_inc_valid(&eq->hw_queue);
- spin_unlock_irqrestore(&eq->spinlock, flags);
-
- return eqe;
-}
-
-static u64 ehea_destroy_eq_res(struct ehea_eq *eq, u64 force)
-{
- u64 hret;
- unsigned long flags;
-
- spin_lock_irqsave(&eq->spinlock, flags);
-
- hret = ehea_h_free_resource(eq->adapter->handle, eq->fw_handle, force);
- spin_unlock_irqrestore(&eq->spinlock, flags);
-
- if (hret != H_SUCCESS)
- return hret;
-
- hw_queue_dtor(&eq->hw_queue);
- kfree(eq);
-
- return hret;
-}
-
-int ehea_destroy_eq(struct ehea_eq *eq)
-{
- u64 hret, aer, aerr;
- if (!eq)
- return 0;
-
- hcp_epas_dtor(&eq->epas);
-
- hret = ehea_destroy_eq_res(eq, NORMAL_FREE);
- if (hret == H_R_STATE) {
- ehea_error_data(eq->adapter, eq->fw_handle, &aer, &aerr);
- hret = ehea_destroy_eq_res(eq, FORCE_FREE);
- }
-
- if (hret != H_SUCCESS) {
- pr_err("destroy EQ failed\n");
- return -EIO;
- }
-
- return 0;
-}
-
-/* allocates memory for a queue and registers pages in phyp */
-static 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) {
- pr_err("hw_qpageit_get_inc failed\n");
- goto out_kill_hwq;
- }
- rpage = __pa(vpage);
- hret = ehea_h_register_rpage(adapter->handle,
- 0, h_call_q_selector,
- qp->fw_handle, rpage, 1);
- if (hret < H_SUCCESS) {
- pr_err("register_rpage_qp failed\n");
- 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_obj(*qp);
- if (!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) {
- pr_err("ehea_h_alloc_resource_qp failed\n");
- 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) {
- pr_err("can't register for sq ret=%x\n", 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) {
- pr_err("can't register for rq1 ret=%x\n", 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) {
- pr_err("can't register for rq2 ret=%x\n", 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) {
- pr_err("can't register for rq3 ret=%x\n", 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, FORCE_FREE);
-
-out_freemem:
- kfree(qp);
- return NULL;
-}
-
-static u64 ehea_destroy_qp_res(struct ehea_qp *qp, u64 force)
-{
- u64 hret;
- struct ehea_qp_init_attr *qp_attr = &qp->init_attr;
-
-
- ehea_h_disable_and_get_hea(qp->adapter->handle, qp->fw_handle);
- hret = ehea_h_free_resource(qp->adapter->handle, qp->fw_handle, force);
- if (hret != H_SUCCESS)
- return hret;
-
- 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 hret;
-}
-
-int ehea_destroy_qp(struct ehea_qp *qp)
-{
- u64 hret, aer, aerr;
- if (!qp)
- return 0;
-
- hcp_epas_dtor(&qp->epas);
-
- hret = ehea_destroy_qp_res(qp, NORMAL_FREE);
- if (hret == H_R_STATE) {
- ehea_error_data(qp->adapter, qp->fw_handle, &aer, &aerr);
- hret = ehea_destroy_qp_res(qp, FORCE_FREE);
- }
-
- if (hret != H_SUCCESS) {
- pr_err("destroy QP failed\n");
- return -EIO;
- }
-
- return 0;
-}
-
-static inline int ehea_calc_index(unsigned long i, unsigned long s)
-{
- return (i >> s) & EHEA_INDEX_MASK;
-}
-
-static inline int ehea_init_top_bmap(struct ehea_top_bmap *ehea_top_bmap,
- int dir)
-{
- if (!ehea_top_bmap->dir[dir]) {
- ehea_top_bmap->dir[dir] =
- kzalloc_obj(struct ehea_dir_bmap);
- if (!ehea_top_bmap->dir[dir])
- return -ENOMEM;
- }
- return 0;
-}
-
-static inline int ehea_init_bmap(struct ehea_bmap *ehea_bmap, int top, int dir)
-{
- if (!ehea_bmap->top[top]) {
- ehea_bmap->top[top] =
- kzalloc_obj(struct ehea_top_bmap);
- if (!ehea_bmap->top[top])
- return -ENOMEM;
- }
- return ehea_init_top_bmap(ehea_bmap->top[top], dir);
-}
-
-static DEFINE_MUTEX(ehea_busmap_mutex);
-static unsigned long ehea_mr_len;
-
-#define EHEA_BUSMAP_ADD_SECT 1
-#define EHEA_BUSMAP_REM_SECT 0
-
-static void ehea_rebuild_busmap(void)
-{
- u64 vaddr = EHEA_BUSMAP_START;
- int top, dir, idx;
-
- for (top = 0; top < EHEA_MAP_ENTRIES; top++) {
- struct ehea_top_bmap *ehea_top;
- int valid_dir_entries = 0;
-
- if (!ehea_bmap->top[top])
- continue;
- ehea_top = ehea_bmap->top[top];
- for (dir = 0; dir < EHEA_MAP_ENTRIES; dir++) {
- struct ehea_dir_bmap *ehea_dir;
- int valid_entries = 0;
-
- if (!ehea_top->dir[dir])
- continue;
- valid_dir_entries++;
- ehea_dir = ehea_top->dir[dir];
- for (idx = 0; idx < EHEA_MAP_ENTRIES; idx++) {
- if (!ehea_dir->ent[idx])
- continue;
- valid_entries++;
- ehea_dir->ent[idx] = vaddr;
- vaddr += EHEA_SECTSIZE;
- }
- if (!valid_entries) {
- ehea_top->dir[dir] = NULL;
- kfree(ehea_dir);
- }
- }
- if (!valid_dir_entries) {
- ehea_bmap->top[top] = NULL;
- kfree(ehea_top);
- }
- }
-}
-
-static int ehea_update_busmap(unsigned long pfn, unsigned long nr_pages, int add)
-{
- unsigned long i, start_section, end_section;
-
- if (!nr_pages)
- return 0;
-
- if (!ehea_bmap) {
- ehea_bmap = kzalloc_obj(struct ehea_bmap);
- if (!ehea_bmap)
- return -ENOMEM;
- }
-
- start_section = (pfn * PAGE_SIZE) / EHEA_SECTSIZE;
- end_section = start_section + ((nr_pages * PAGE_SIZE) / EHEA_SECTSIZE);
- /* Mark entries as valid or invalid only; address is assigned later */
- for (i = start_section; i < end_section; i++) {
- u64 flag;
- int top = ehea_calc_index(i, EHEA_TOP_INDEX_SHIFT);
- int dir = ehea_calc_index(i, EHEA_DIR_INDEX_SHIFT);
- int idx = i & EHEA_INDEX_MASK;
-
- if (add) {
- int ret = ehea_init_bmap(ehea_bmap, top, dir);
- if (ret)
- return ret;
- flag = 1; /* valid */
- ehea_mr_len += EHEA_SECTSIZE;
- } else {
- if (!ehea_bmap->top[top])
- continue;
- if (!ehea_bmap->top[top]->dir[dir])
- continue;
- flag = 0; /* invalid */
- ehea_mr_len -= EHEA_SECTSIZE;
- }
-
- ehea_bmap->top[top]->dir[dir]->ent[idx] = flag;
- }
- ehea_rebuild_busmap(); /* Assign contiguous addresses for mr */
- return 0;
-}
-
-int ehea_add_sect_bmap(unsigned long pfn, unsigned long nr_pages)
-{
- int ret;
-
- mutex_lock(&ehea_busmap_mutex);
- ret = ehea_update_busmap(pfn, nr_pages, EHEA_BUSMAP_ADD_SECT);
- mutex_unlock(&ehea_busmap_mutex);
- return ret;
-}
-
-int ehea_rem_sect_bmap(unsigned long pfn, unsigned long nr_pages)
-{
- int ret;
-
- mutex_lock(&ehea_busmap_mutex);
- ret = ehea_update_busmap(pfn, nr_pages, EHEA_BUSMAP_REM_SECT);
- mutex_unlock(&ehea_busmap_mutex);
- return ret;
-}
-
-static int ehea_is_hugepage(unsigned long pfn)
-{
- if (pfn & EHEA_HUGEPAGE_PFN_MASK)
- return 0;
-
- if (page_shift(pfn_to_page(pfn)) != EHEA_HUGEPAGESHIFT)
- return 0;
-
- return 1;
-}
-
-static int ehea_create_busmap_callback(unsigned long initial_pfn,
- unsigned long total_nr_pages, void *arg)
-{
- int ret;
- unsigned long pfn, start_pfn, end_pfn, nr_pages;
-
- if ((total_nr_pages * PAGE_SIZE) < EHEA_HUGEPAGE_SIZE)
- return ehea_update_busmap(initial_pfn, total_nr_pages,
- EHEA_BUSMAP_ADD_SECT);
-
- /* Given chunk is >= 16GB -> check for hugepages */
- start_pfn = initial_pfn;
- end_pfn = initial_pfn + total_nr_pages;
- pfn = start_pfn;
-
- while (pfn < end_pfn) {
- if (ehea_is_hugepage(pfn)) {
- /* Add mem found in front of the hugepage */
- nr_pages = pfn - start_pfn;
- ret = ehea_update_busmap(start_pfn, nr_pages,
- EHEA_BUSMAP_ADD_SECT);
- if (ret)
- return ret;
-
- /* Skip the hugepage */
- pfn += (EHEA_HUGEPAGE_SIZE / PAGE_SIZE);
- start_pfn = pfn;
- } else
- pfn += (EHEA_SECTSIZE / PAGE_SIZE);
- }
-
- /* Add mem found behind the hugepage(s) */
- nr_pages = pfn - start_pfn;
- return ehea_update_busmap(start_pfn, nr_pages, EHEA_BUSMAP_ADD_SECT);
-}
-
-int ehea_create_busmap(void)
-{
- int ret;
-
- mutex_lock(&ehea_busmap_mutex);
- ehea_mr_len = 0;
- ret = walk_system_ram_range(0, 1ULL << MAX_PHYSMEM_BITS, NULL,
- ehea_create_busmap_callback);
- mutex_unlock(&ehea_busmap_mutex);
- return ret;
-}
-
-void ehea_destroy_busmap(void)
-{
- int top, dir;
- mutex_lock(&ehea_busmap_mutex);
- if (!ehea_bmap)
- goto out_destroy;
-
- for (top = 0; top < EHEA_MAP_ENTRIES; top++) {
- if (!ehea_bmap->top[top])
- continue;
-
- for (dir = 0; dir < EHEA_MAP_ENTRIES; dir++) {
- if (!ehea_bmap->top[top]->dir[dir])
- continue;
-
- kfree(ehea_bmap->top[top]->dir[dir]);
- }
-
- kfree(ehea_bmap->top[top]);
- }
-
- kfree(ehea_bmap);
- ehea_bmap = NULL;
-out_destroy:
- mutex_unlock(&ehea_busmap_mutex);
-}
-
-u64 ehea_map_vaddr(void *caddr)
-{
- int top, dir, idx;
- unsigned long index, offset;
-
- if (!ehea_bmap)
- return EHEA_INVAL_ADDR;
-
- index = __pa(caddr) >> SECTION_SIZE_BITS;
- top = (index >> EHEA_TOP_INDEX_SHIFT) & EHEA_INDEX_MASK;
- if (!ehea_bmap->top[top])
- return EHEA_INVAL_ADDR;
-
- dir = (index >> EHEA_DIR_INDEX_SHIFT) & EHEA_INDEX_MASK;
- if (!ehea_bmap->top[top]->dir[dir])
- return EHEA_INVAL_ADDR;
-
- idx = index & EHEA_INDEX_MASK;
- if (!ehea_bmap->top[top]->dir[dir]->ent[idx])
- return EHEA_INVAL_ADDR;
-
- offset = (unsigned long)caddr & (EHEA_SECTSIZE - 1);
- return ehea_bmap->top[top]->dir[dir]->ent[idx] | offset;
-}
-
-static inline void *ehea_calc_sectbase(int top, int dir, int idx)
-{
- unsigned long ret = idx;
- ret |= dir << EHEA_DIR_INDEX_SHIFT;
- ret |= top << EHEA_TOP_INDEX_SHIFT;
- return __va(ret << SECTION_SIZE_BITS);
-}
-
-static u64 ehea_reg_mr_section(int top, int dir, int idx, u64 *pt,
- struct ehea_adapter *adapter,
- struct ehea_mr *mr)
-{
- void *pg;
- u64 j, m, hret;
- unsigned long k = 0;
- u64 pt_abs = __pa(pt);
-
- void *sectbase = ehea_calc_sectbase(top, dir, idx);
-
- for (j = 0; j < (EHEA_PAGES_PER_SECTION / EHEA_MAX_RPAGE); j++) {
-
- for (m = 0; m < EHEA_MAX_RPAGE; m++) {
- pg = sectbase + ((k++) * EHEA_PAGESIZE);
- pt[m] = __pa(pg);
- }
- hret = ehea_h_register_rpage_mr(adapter->handle, mr->handle, 0,
- 0, pt_abs, EHEA_MAX_RPAGE);
-
- if ((hret != H_SUCCESS) &&
- (hret != H_PAGE_REGISTERED)) {
- ehea_h_free_resource(adapter->handle, mr->handle,
- FORCE_FREE);
- pr_err("register_rpage_mr failed\n");
- return hret;
- }
- }
- return hret;
-}
-
-static u64 ehea_reg_mr_sections(int top, int dir, u64 *pt,
- struct ehea_adapter *adapter,
- struct ehea_mr *mr)
-{
- u64 hret = H_SUCCESS;
- int idx;
-
- for (idx = 0; idx < EHEA_MAP_ENTRIES; idx++) {
- if (!ehea_bmap->top[top]->dir[dir]->ent[idx])
- continue;
-
- hret = ehea_reg_mr_section(top, dir, idx, pt, adapter, mr);
- if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED))
- return hret;
- }
- return hret;
-}
-
-static u64 ehea_reg_mr_dir_sections(int top, u64 *pt,
- struct ehea_adapter *adapter,
- struct ehea_mr *mr)
-{
- u64 hret = H_SUCCESS;
- int dir;
-
- for (dir = 0; dir < EHEA_MAP_ENTRIES; dir++) {
- if (!ehea_bmap->top[top]->dir[dir])
- continue;
-
- hret = ehea_reg_mr_sections(top, dir, pt, adapter, mr);
- if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED))
- return hret;
- }
- return hret;
-}
-
-int ehea_reg_kernel_mr(struct ehea_adapter *adapter, struct ehea_mr *mr)
-{
- int ret;
- u64 *pt;
- u64 hret;
- u32 acc_ctrl = EHEA_MR_ACC_CTRL;
-
- unsigned long top;
-
- pt = (void *)get_zeroed_page(GFP_KERNEL);
- if (!pt) {
- pr_err("no mem\n");
- ret = -ENOMEM;
- goto out;
- }
-
- hret = ehea_h_alloc_resource_mr(adapter->handle, EHEA_BUSMAP_START,
- ehea_mr_len, acc_ctrl, adapter->pd,
- &mr->handle, &mr->lkey);
-
- if (hret != H_SUCCESS) {
- pr_err("alloc_resource_mr failed\n");
- ret = -EIO;
- goto out;
- }
-
- if (!ehea_bmap) {
- ehea_h_free_resource(adapter->handle, mr->handle, FORCE_FREE);
- pr_err("no busmap available\n");
- ret = -EIO;
- goto out;
- }
-
- for (top = 0; top < EHEA_MAP_ENTRIES; top++) {
- if (!ehea_bmap->top[top])
- continue;
-
- hret = ehea_reg_mr_dir_sections(top, pt, adapter, mr);
- if((hret != H_PAGE_REGISTERED) && (hret != H_SUCCESS))
- break;
- }
-
- if (hret != H_SUCCESS) {
- ehea_h_free_resource(adapter->handle, mr->handle, FORCE_FREE);
- pr_err("registering mr failed\n");
- ret = -EIO;
- goto out;
- }
-
- mr->vaddr = EHEA_BUSMAP_START;
- mr->adapter = adapter;
- ret = 0;
-out:
- free_page((unsigned long)pt);
- return ret;
-}
-
-int ehea_rem_mr(struct ehea_mr *mr)
-{
- u64 hret;
-
- if (!mr || !mr->adapter)
- return -EINVAL;
-
- hret = ehea_h_free_resource(mr->adapter->handle, mr->handle,
- FORCE_FREE);
- if (hret != H_SUCCESS) {
- pr_err("destroy MR failed\n");
- return -EIO;
- }
-
- return 0;
-}
-
-int ehea_gen_smr(struct ehea_adapter *adapter, struct ehea_mr *old_mr,
- struct ehea_mr *shared_mr)
-{
- u64 hret;
-
- hret = ehea_h_register_smr(adapter->handle, old_mr->handle,
- old_mr->vaddr, EHEA_MR_ACC_CTRL,
- adapter->pd, shared_mr);
- if (hret != H_SUCCESS)
- return -EIO;
-
- shared_mr->adapter = adapter;
-
- return 0;
-}
-
-static void print_error_data(u64 *data)
-{
- int length;
- u64 type = EHEA_BMASK_GET(ERROR_DATA_TYPE, data[2]);
- u64 resource = data[1];
-
- length = EHEA_BMASK_GET(ERROR_DATA_LENGTH, data[0]);
-
- if (length > EHEA_PAGESIZE)
- length = EHEA_PAGESIZE;
-
- if (type == EHEA_AER_RESTYPE_QP)
- pr_err("QP (resource=%llX) state: AER=0x%llX, AERR=0x%llX, port=%llX\n",
- resource, data[6], data[12], data[22]);
- else if (type == EHEA_AER_RESTYPE_CQ)
- pr_err("CQ (resource=%llX) state: AER=0x%llX\n",
- resource, data[6]);
- else if (type == EHEA_AER_RESTYPE_EQ)
- pr_err("EQ (resource=%llX) state: AER=0x%llX\n",
- resource, data[6]);
-
- ehea_dump(data, length, "error data");
-}
-
-u64 ehea_error_data(struct ehea_adapter *adapter, u64 res_handle,
- u64 *aer, u64 *aerr)
-{
- unsigned long ret;
- u64 *rblock;
- u64 type = 0;
-
- rblock = (void *)get_zeroed_page(GFP_KERNEL);
- if (!rblock) {
- pr_err("Cannot allocate rblock memory\n");
- goto out;
- }
-
- ret = ehea_h_error_data(adapter->handle, res_handle, rblock);
-
- if (ret == H_SUCCESS) {
- type = EHEA_BMASK_GET(ERROR_DATA_TYPE, rblock[2]);
- *aer = rblock[6];
- *aerr = rblock[12];
- print_error_data(rblock);
- } else if (ret == H_R_STATE) {
- pr_err("No error data available: %llX\n", res_handle);
- } else
- pr_err("Error data could not be fetched: %llX\n", res_handle);
-
- free_page((unsigned long)rblock);
-out:
- return type;
-}
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_qmr.h b/drivers/net/ethernet/ibm/ehea/ehea_qmr.h
deleted file mode 100644
index 7c7cccd820f7..000000000000
--- a/drivers/net/ethernet/ibm/ehea/ehea_qmr.h
+++ /dev/null
@@ -1,390 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * linux/drivers/net/ethernet/ibm/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>
- */
-
-#ifndef __EHEA_QMR_H__
-#define __EHEA_QMR_H__
-
-#include <linux/prefetch.h>
-#include "ehea.h"
-#include "ehea_hw.h"
-
-/*
- * page size of ehea hardware queues
- */
-
-#define EHEA_PAGESHIFT 12
-#define EHEA_PAGESIZE (1UL << EHEA_PAGESHIFT)
-#define EHEA_SECTSIZE (1UL << 24)
-#define EHEA_PAGES_PER_SECTION (EHEA_SECTSIZE >> EHEA_PAGESHIFT)
-#define EHEA_HUGEPAGESHIFT 34
-#define EHEA_HUGEPAGE_SIZE (1UL << EHEA_HUGEPAGESHIFT)
-#define EHEA_HUGEPAGE_PFN_MASK ((EHEA_HUGEPAGE_SIZE - 1) >> PAGE_SHIFT)
-
-#if ((1UL << SECTION_SIZE_BITS) < EHEA_SECTSIZE)
-#error eHEA module cannot work if kernel sectionsize < ehea sectionsize
-#endif
-
-/* 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 reserved2b;
- 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 __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 0x700F
-#define EHEA_CQE_STAT_FAT_ERR_MASK 0xF
-#define EHEA_CQE_BLIND_CKSUM 0x8000
-#define EHEA_CQE_STAT_ERR_TCP 0x4000
-#define EHEA_CQE_STAT_ERR_IP 0x2000
-#define EHEA_CQE_STAT_ERR_CRC 0x1000
-
-/* Defines which bad send cqe stati lead to a port reset */
-#define EHEA_CQE_STAT_RESET_MASK 0x0002
-
-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)
-
-#define EHEA_AER_RESTYPE_QP 0x8
-#define EHEA_AER_RESTYPE_CQ 0x4
-#define EHEA_AER_RESTYPE_EQ 0x3
-
-/* Defines which affiliated errors lead to a port reset */
-#define EHEA_AER_RESET_MASK 0xFFFFFFFFFEFFFFFFULL
-#define EHEA_AERR_RESET_MASK 0xFFFFFFFFFFFFFFFFULL
-
-struct ehea_eqe {
- u64 entry;
-};
-
-#define ERROR_DATA_LENGTH EHEA_BMASK_IBM(52, 63)
-#define ERROR_DATA_TYPE EHEA_BMASK_IBM(0, 7)
-
-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 ¤t_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_cq(struct ehea_cq *cq)
-{
- hw_qeit_inc(&cq->hw_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_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_kernel_mr(struct ehea_adapter *adapter, struct ehea_mr *mr);
-
-int ehea_gen_smr(struct ehea_adapter *adapter, struct ehea_mr *old_mr,
- struct ehea_mr *shared_mr);
-
-int ehea_rem_mr(struct ehea_mr *mr);
-
-u64 ehea_error_data(struct ehea_adapter *adapter, u64 res_handle,
- u64 *aer, u64 *aerr);
-
-int ehea_add_sect_bmap(unsigned long pfn, unsigned long nr_pages);
-int ehea_rem_sect_bmap(unsigned long pfn, unsigned long nr_pages);
-int ehea_create_busmap(void);
-void ehea_destroy_busmap(void);
-u64 ehea_map_vaddr(void *caddr);
-
-#endif /* __EHEA_QMR_H__ */
--
2.47.3
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