From: "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
To: David Christensen <drc@linux.ibm.com>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>
Cc: netdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 1/2] ehea: remove the ehea driver
Date: Tue, 30 Jun 2026 07:42:53 +0200 [thread overview]
Message-ID: <e02edfdc-3456-43f8-a9a6-c2eb0303d895@kernel.org> (raw)
In-Reply-To: <20260629211343.3712775-2-drc@linux.ibm.com>
Le 29/06/2026 à 23:13, David Christensen a écrit :
> [Vous ne recevez pas souvent de courriers de drc@linux.ibm.com. Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSenderIdentification ]
>
> 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>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
> ---
> 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
>
next prev parent reply other threads:[~2026-06-30 5:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-29 21:13 [PATCH net-next 0/2] net: remove the orphaned IBM eHEA driver David Christensen
2026-06-29 21:13 ` [PATCH net-next 1/2] ehea: remove the ehea driver David Christensen
2026-06-30 5:42 ` Christophe Leroy (CS GROUP) [this message]
2026-06-29 21:13 ` [PATCH net-next 2/2] powerpc: remove ehea driver references David Christensen
2026-06-30 5:43 ` Christophe Leroy (CS GROUP)
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