* (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>
+ * Christoph Raisch <raisch@de.ibm.com>
+ * Jan-Bernd Themann <themann@de.ibm.com>
+ * Thomas Klein <tklein@de.ibm.com>
*
*
* This program is free software; you can redistribute it and/or modify
#include <linux/if.h>
#include <linux/list.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 <net/ip.h>
#include "ehea.h"
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;
+static int use_lro;
+static int lro_max_aggr = EHEA_LRO_MAX_AGGR;
+static int num_tx_qps = EHEA_NUM_TX_QP;
+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_param(use_lro, int, 0);
+module_param(lro_max_aggr, int, 0);
+module_param(num_tx_qps, int, 0);
+MODULE_PARM_DESC(num_tx_qps, "Number of TX-QPS");
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 = [6..14]. Default = "
__MODULE_STRING(EHEA_DEF_ENTRIES_RQ3) ")");
MODULE_PARM_DESC(sq_entries, " Number of entries for the Send Queue "
"[2^x - 1], x = [6..14]. Default = "
__MODULE_STRING(EHEA_DEF_ENTRIES_SQ) ")");
+MODULE_PARM_DESC(use_mcs, " 0:NAPI, 1:Multiple receive queues, Default = 0 ");
+
+MODULE_PARM_DESC(lro_max_aggr, " LRO: Max packets to be aggregated. Default = "
+ __MODULE_STRING(EHEA_LRO_MAX_AGGR));
+MODULE_PARM_DESC(use_lro, " Large Receive Offload, 1: enable, 0: disable, "
+ "Default = 0");
+
+static int port_name_cnt;
+static LIST_HEAD(adapter_list);
+static unsigned long ehea_driver_flags;
+struct work_struct ehea_rereg_mr_task;
+static DEFINE_MUTEX(dlpar_mem_lock);
+struct ehea_fw_handle_array ehea_fw_handles;
+struct ehea_bcmc_reg_array ehea_bcmc_regs;
+
+
+static int __devinit ehea_probe_adapter(struct of_device *dev,
+ const struct of_device_id *id);
+
+static int __devexit ehea_remove(struct of_device *dev);
+
+static struct of_device_id ehea_device_table[] = {
+ {
+ .name = "lhea",
+ .compatible = "IBM,lhea",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ehea_device_table);
+
+static struct of_platform_driver ehea_driver = {
+ .name = "ehea",
+ .match_table = ehea_device_table,
+ .probe = ehea_probe_adapter,
+ .remove = ehea_remove,
+};
-void ehea_dump(void *adr, int len, char *msg) {
+void ehea_dump(void *adr, int len, char *msg)
+{
int x;
unsigned char *deb = adr;
for (x = 0; x < len; x += 16) {
- printk(DRV_NAME " %s adr=%p ofs=%04x %016lx %016lx\n", msg,
- deb, x, *((u64*)&deb[0]), *((u64*)&deb[8]));
+ printk(DRV_NAME " %s adr=%p ofs=%04x %016llx %016llx\n", msg,
+ deb, x, *((u64 *)&deb[0]), *((u64 *)&deb[8]));
deb += 16;
}
}
+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 + port->num_add_tx_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(num_fw_handles * sizeof(*arr), GFP_KERNEL);
+ 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 + port->num_add_tx_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(num_registrations * sizeof(*arr), 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_SCOPE_ALL |
+ EHEA_BCMC_MULTICAST |
+ EHEA_BCMC_UNTAGGED;
+ 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_SCOPE_ALL |
+ EHEA_BCMC_MULTICAST |
+ EHEA_BCMC_VLANID_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 struct net_device_stats *ehea_get_stats(struct net_device *dev)
{
struct ehea_port *port = netdev_priv(dev);
struct net_device_stats *stats = &port->stats;
struct hcp_ehea_port_cb2 *cb2;
- u64 hret, rx_packets;
+ u64 hret, rx_packets, tx_packets;
int i;
memset(stats, 0, sizeof(*stats));
- cb2 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb2 = (void *)get_zeroed_page(GFP_ATOMIC);
if (!cb2) {
ehea_error("no mem for cb2");
goto out;
for (i = 0; i < port->num_def_qps; i++)
rx_packets += port->port_res[i].rx_packets;
- stats->tx_packets = cb2->txucp + cb2->txmcp + cb2->txbcp;
+ tx_packets = 0;
+ for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++)
+ tx_packets += port->port_res[i].tx_packets;
+
+ stats->tx_packets = tx_packets;
stats->multicast = cb2->rxmcp;
stats->rx_errors = cb2->rxuerr;
stats->rx_bytes = cb2->rxo;
stats->rx_packets = rx_packets;
out_herr:
- kfree(cb2);
+ free_page((unsigned long)cb2);
out:
return stats;
}
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;
- if (!nr_of_wqes)
+ 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 < nr_of_wqes; i++) {
+ 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]) {
- ehea_error("%s: no mem for skb/%d wqes filled",
- dev->name, i);
+ 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, i);
+ ehea_update_rq1a(pr->qp, adder);
}
-static int ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a)
+static void ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a)
{
- int ret = 0;
struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr;
struct net_device *dev = pr->port->netdev;
int i;
for (i = 0; i < pr->rq1_skba.len; i++) {
skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE);
- if (!skb_arr_rq1[i]) {
- ehea_error("%s: no mem for skb/%d wqes filled",
- dev->name, i);
- ret = -ENOMEM;
- goto out;
- }
+ if (!skb_arr_rq1[i])
+ break;
}
/* Ring doorbell */
ehea_update_rq1a(pr->qp, nr_rq1a);
-out:
- return ret;
}
static int ehea_refill_rq_def(struct ehea_port_res *pr,
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 (!fill_wqes)
+ 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++) {
- struct sk_buff *skb = netdev_alloc_skb(dev, packet_size);
+ u64 tmp_addr;
+ struct sk_buff *skb;
+
+ skb = netdev_alloc_skb_ip_align(dev, packet_size);
if (!skb) {
- ehea_error("%s: no mem for skb/%d wqes filled",
- dev->name, i);
q_skba->os_skbs = fill_wqes - i;
- ret = -ENOMEM;
+ if (q_skba->os_skbs == q_skba->len - 2) {
+ ehea_info("%s: rq%i ran dry - no mem for skb",
+ pr->port->netdev->name, rq_nr);
+ ret = -ENOMEM;
+ }
break;
}
- skb_reserve(skb, NET_IP_ALIGN);
skb_arr[index] = skb;
+ tmp_addr = ehea_map_vaddr(skb->data);
+ if (tmp_addr == -1) {
+ dev_kfree_skb(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);
+ | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, index);
rwqe->sg_list[0].l_key = pr->recv_mr.lkey;
- rwqe->sg_list[0].vaddr = (u64)skb->data;
+ 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, i);
+ ehea_update_rq2a(pr->qp, adder);
else
- ehea_update_rq3a(pr->qp, i);
-
+ ehea_update_rq3a(pr->qp, adder);
+out:
return ret;
}
{
return ehea_refill_rq_def(pr, &pr->rq2_skba, 2,
nr_of_wqes, EHEA_RWQE2_TYPE,
- EHEA_RQ2_PKT_SIZE + NET_IP_ALIGN);
+ EHEA_RQ2_PKT_SIZE);
}
{
return ehea_refill_rq_def(pr, &pr->rq3_skba, 3,
nr_of_wqes, EHEA_RWQE3_TYPE,
- EHEA_MAX_PACKET_SIZE + NET_IP_ALIGN);
+ EHEA_MAX_PACKET_SIZE);
}
static inline int ehea_check_cqe(struct ehea_cqe *cqe, int *rq_num)
x &= (arr_len - 1);
pref = skb_array[x];
- 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);
+ 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;
x &= (arr_len - 1);
pref = skb_array[x];
- prefetchw(pref);
- prefetchw(pref + EHEA_CACHE_LINE);
+ if (pref) {
+ prefetchw(pref);
+ prefetchw(pref + EHEA_CACHE_LINE);
- pref = (skb_array[x]->data);
- 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;
{
struct sk_buff *skb;
- if (netif_msg_rx_err(pr->port)) {
- ehea_error("CQE Error for QP %d", pr->qp->init_attr.qp_nr);
- ehea_dump(cqe, sizeof(*cqe), "CQE");
- }
+ 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;
}
if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) {
- ehea_error("Critical receive error. Resetting port.");
- queue_work(pr->port->adapter->ehea_wq, &pr->port->reset_task);
+ if (netif_msg_rx_err(pr->port)) {
+ ehea_error("Critical receive error for QP %d. "
+ "Resetting port.", 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_poll(struct net_device *dev, int *budget)
+static int get_skb_hdr(struct sk_buff *skb, void **iphdr,
+ void **tcph, u64 *hdr_flags, void *priv)
{
- struct ehea_port *port = netdev_priv(dev);
- struct ehea_port_res *pr = &port->port_res[0];
+ struct ehea_cqe *cqe = priv;
+ unsigned int ip_len;
+ struct iphdr *iph;
+
+ /* non tcp/udp packets */
+ if (!cqe->header_length)
+ return -1;
+
+ /* non tcp packet */
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
+ if (iph->protocol != IPPROTO_TCP)
+ return -1;
+
+ ip_len = ip_hdrlen(skb);
+ skb_set_transport_header(skb, ip_len);
+ *tcph = tcp_hdr(skb);
+
+ /* check if ip header and tcp header are complete */
+ if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb))
+ return -1;
+
+ *hdr_flags = LRO_IPV4 | LRO_TCP;
+ *iphdr = iph;
+
+ return 0;
+}
+
+static void ehea_proc_skb(struct ehea_port_res *pr, struct ehea_cqe *cqe,
+ struct sk_buff *skb)
+{
+ int vlan_extracted = ((cqe->status & EHEA_CQE_VLAN_TAG_XTRACT) &&
+ pr->port->vgrp);
+
+ if (use_lro) {
+ if (vlan_extracted)
+ lro_vlan_hwaccel_receive_skb(&pr->lro_mgr, skb,
+ pr->port->vgrp,
+ cqe->vlan_tag,
+ cqe);
+ else
+ lro_receive_skb(&pr->lro_mgr, skb, cqe);
+ } else {
+ if (vlan_extracted)
+ vlan_hwaccel_receive_skb(skb, pr->port->vgrp,
+ cqe->vlan_tag);
+ else
+ netif_receive_skb(skb);
+ }
+}
+
+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;
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;
- int wqe_index, last_wqe_index, rq, intreq, my_quota, port_reset;
+ int wqe_index, last_wqe_index, rq, port_reset;
processed = processed_rq1 = processed_rq2 = processed_rq3 = 0;
last_wqe_index = 0;
- my_quota = min(*budget, dev->quota);
- my_quota = min(my_quota, EHEA_POLL_MAX_RWQE);
- /* rq0 is low latency RQ */
cqe = ehea_poll_rq1(qp, &wqe_index);
- while ((my_quota > 0) && cqe) {
+ while ((processed < budget) && cqe) {
ehea_inc_rq1(qp);
processed_rq1++;
processed++;
- my_quota--;
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 */
+ if (rq == 1) {
+ /* LL RQ1 */
skb = get_skb_by_index_ll(skb_arr_rq1,
skb_arr_rq1_len,
wqe_index);
if (unlikely(!skb)) {
if (netif_msg_rx_err(port))
ehea_error("LL rq1: skb=NULL");
+
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);
+ skb_copy_to_linear_data(skb, ((char *)cqe) + 64,
+ cqe->num_bytes_transfered - 4);
ehea_fill_skb(dev, skb, cqe);
- } else if (rq == 2) { /* RQ2 */
+ } else if (rq == 2) {
+ /* RQ2 */
skb = get_skb_by_index(skb_arr_rq2,
skb_arr_rq2_len, cqe);
if (unlikely(!skb)) {
}
ehea_fill_skb(dev, skb, cqe);
processed_rq2++;
- } else { /* RQ3 */
+ } else {
+ /* RQ3 */
skb = get_skb_by_index(skb_arr_rq3,
skb_arr_rq3_len, cqe);
if (unlikely(!skb)) {
processed_rq3++;
}
- if (cqe->status & EHEA_CQE_VLAN_TAG_XTRACT)
- vlan_hwaccel_receive_skb(skb, port->vgrp,
- cqe->vlan_tag);
- else
- netif_receive_skb(skb);
-
- } else { /* Error occured */
- pr->p_state.poll_receive_errors++;
+ ehea_proc_skb(pr, cqe, skb);
+ } else {
+ pr->p_stats.poll_receive_errors++;
port_reset = ehea_treat_poll_error(pr, rq, cqe,
&processed_rq2,
&processed_rq3);
}
cqe = ehea_poll_rq1(qp, &wqe_index);
}
+ if (use_lro)
+ lro_flush_all(&pr->lro_mgr);
- dev->quota -= processed;
- *budget -= processed;
-
- pr->p_state.ehea_poll += 1;
pr->rx_packets += processed;
ehea_refill_rq1(pr, last_wqe_index, processed_rq1);
ehea_refill_rq2(pr, processed_rq2);
ehea_refill_rq3(pr, processed_rq3);
- intreq = ((pr->p_state.ehea_poll & 0xF) == 0xF);
-
- if (!cqe || intreq) {
- netif_rx_complete(dev);
- ehea_reset_cq_ep(pr->recv_cq);
- ehea_reset_cq_n1(pr->recv_cq);
- cqe = hw_qeit_get_valid(&qp->hw_rqueue1);
- if (!cqe || intreq)
- return 0;
- if (!netif_rx_reschedule(dev, my_quota))
- return 0;
- }
- return 1;
+ return processed;
}
-void free_sent_skbs(struct ehea_cqe *cqe, struct ehea_port_res *pr)
+static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota)
{
struct sk_buff *skb;
- int index, max_index_mask, i;
-
- index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id);
- max_index_mask = pr->sq_skba.len - 1;
- for (i = 0; i < EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id); i++) {
- skb = pr->sq_skba.arr[index];
- if (likely(skb)) {
- dev_kfree_skb(skb);
- pr->sq_skba.arr[index] = NULL;
- } else {
- ehea_error("skb=NULL, wr_id=%lX, loop=%d, index=%d",
- cqe->wr_id, i, index);
- }
- index--;
- index &= max_index_mask;
- }
-}
-
-#define MAX_SENDCOMP_QUOTA 400
-void ehea_send_irq_tasklet(unsigned long data)
-{
- struct ehea_port_res *pr = (struct ehea_port_res*)data;
struct ehea_cq *send_cq = pr->send_cq;
struct ehea_cqe *cqe;
- int quota = MAX_SENDCOMP_QUOTA;
+ int quota = my_quota;
int cqe_counter = 0;
int swqe_av = 0;
+ int index;
unsigned long flags;
- do {
- cqe = ehea_poll_cq(send_cq);
- if (!cqe) {
- ehea_reset_cq_ep(send_cq);
- ehea_reset_cq_n1(send_cq);
- cqe = ehea_poll_cq(send_cq);
- if (!cqe)
- break;
- }
+ cqe = ehea_poll_cq(send_cq);
+ while (cqe && (quota > 0)) {
+ ehea_inc_cq(send_cq);
+
cqe_counter++;
rmb();
if (cqe->status & EHEA_CQE_STAT_ERR_MASK) {
ehea_error("Send Completion Error: Resetting port");
if (netif_msg_tx_err(pr->port))
ehea_dump(cqe, sizeof(*cqe), "Send CQE");
- queue_work(pr->port->adapter->ehea_wq,
- &pr->port->reset_task);
+ ehea_schedule_port_reset(pr->port);
break;
}
ehea_dump(cqe, sizeof(*cqe), "CQE");
if (likely(EHEA_BMASK_GET(EHEA_WR_ID_TYPE, cqe->wr_id)
- == EHEA_SWQE2_TYPE))
- free_sent_skbs(cqe, pr);
+ == EHEA_SWQE2_TYPE)) {
+
+ index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id);
+ skb = pr->sq_skba.arr[index];
+ dev_kfree_skb(skb);
+ pr->sq_skba.arr[index] = NULL;
+ }
swqe_av += EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id);
quota--;
- } while (quota > 0);
+
+ cqe = ehea_poll_cq(send_cq);
+ };
ehea_update_feca(send_cq, cqe_counter);
atomic_add(swqe_av, &pr->swqe_avail);
spin_lock_irqsave(&pr->netif_queue, flags);
+
if (pr->queue_stopped && (atomic_read(&pr->swqe_avail)
>= pr->swqe_refill_th)) {
netif_wake_queue(pr->port->netdev);
}
spin_unlock_irqrestore(&pr->netif_queue, flags);
- if (unlikely(cqe))
- tasklet_hi_schedule(&pr->send_comp_task);
+ return cqe;
}
-static irqreturn_t ehea_send_irq_handler(int irq, void *param)
+#define EHEA_NAPI_POLL_NUM_BEFORE_IRQ 16
+#define EHEA_POLL_MAX_CQES 65535
+
+static int ehea_poll(struct napi_struct *napi, int budget)
{
- struct ehea_port_res *pr = param;
- tasklet_hi_schedule(&pr->send_comp_task);
- return IRQ_HANDLED;
+ 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 force_irq, wqe_index;
+ int rx = 0;
+
+ force_irq = (pr->poll_counter > EHEA_NAPI_POLL_NUM_BEFORE_IRQ);
+ cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES);
+
+ if (!force_irq)
+ rx += ehea_proc_rwqes(dev, pr, budget - rx);
+
+ while ((rx != budget) || force_irq) {
+ pr->poll_counter = 0;
+ force_irq = 0;
+ 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);
+ cqe = ehea_poll_rq1(pr->qp, &wqe_index);
+ cqe_skb = ehea_poll_cq(pr->send_cq);
+
+ if (!cqe && !cqe_skb)
+ return rx;
+
+ if (!napi_reschedule(napi))
+ return rx;
+
+ cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES);
+ rx += ehea_proc_rwqes(dev, pr, budget - rx);
+ }
+
+ pr->poll_counter++;
+ return rx;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void ehea_netpoll(struct net_device *dev)
+{
+ struct ehea_port *port = netdev_priv(dev);
+ int i;
+
+ for (i = 0; i < port->num_def_qps; i++)
+ napi_schedule(&port->port_res[i].napi);
+}
+#endif
+
static irqreturn_t ehea_recv_irq_handler(int irq, void *param)
{
struct ehea_port_res *pr = param;
- struct ehea_port *port = pr->port;
- netif_rx_schedule(port->netdev);
+
+ napi_schedule(&pr->napi);
+
return IRQ_HANDLED;
}
while (eqe) {
qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry);
- ehea_error("QP aff_err: entry=0x%lx, token=0x%x",
+ ehea_error("QP aff_err: entry=0x%llx, token=0x%x",
eqe->entry, qp_token);
qp = port->port_res[qp_token].qp;
eqe = ehea_poll_eq(port->qp_eq);
}
- queue_work(port->adapter->ehea_wq, &port->reset_task);
+ ehea_schedule_port_reset(port);
return IRQ_HANDLED;
}
for (i = 0; i < EHEA_MAX_PORTS; i++)
if (adapter->port[i])
- if (adapter->port[i]->logical_port_id == logical_port)
+ if (adapter->port[i]->logical_port_id == logical_port)
return adapter->port[i];
return NULL;
}
u64 hret;
struct hcp_ehea_port_cb0 *cb0;
- cb0 = kzalloc(PAGE_SIZE, GFP_ATOMIC); /* May be called via */
- if (!cb0) { /* ehea_neq_tasklet() */
+ /* may be called via ehea_neq_tasklet() */
+ cb0 = (void *)get_zeroed_page(GFP_ATOMIC);
+ if (!cb0) {
ehea_error("no mem for cb0");
ret = -ENOMEM;
goto out;
/* MAC address */
port->mac_addr = cb0->port_mac_addr << 16;
- if (!is_valid_ether_addr((u8*)&port->mac_addr)) {
+ if (!is_valid_ether_addr((u8 *)&port->mac_addr)) {
ret = -EADDRNOTAVAIL;
goto out_free;
}
}
port->autoneg = 1;
+ port->num_mcs = cb0->num_default_qps;
/* Number of default QPs */
- port->num_def_qps = cb0->num_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;
}
- if (port->num_def_qps >= EHEA_NUM_TX_QP)
+ port->num_tx_qps = num_tx_qps;
+
+ if (port->num_def_qps >= port->num_tx_qps)
port->num_add_tx_qps = 0;
else
- port->num_add_tx_qps = EHEA_NUM_TX_QP - port->num_def_qps;
+ port->num_add_tx_qps = port->num_tx_qps - port->num_def_qps;
ret = 0;
out_free:
if (ret || netif_msg_probe(port))
ehea_dump(cb0, sizeof(*cb0), "ehea_sense_port_attr");
- kfree(cb0);
+ free_page((unsigned long)cb0);
out:
return ret;
}
u64 hret;
int ret = 0;
- cb4 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb4 = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb4) {
ehea_error("no mem for cb4");
ret = -ENOMEM;
ehea_error("Failed setting port speed");
}
}
- netif_carrier_on(port->netdev);
- kfree(cb4);
+ if (!prop_carrier_state || (port->phy_link == EHEA_PHY_LINK_UP))
+ netif_carrier_on(port->netdev);
+
+ free_page((unsigned long)cb4);
out:
return ret;
}
}
if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PORT_UP, eqe)) {
+ port->phy_link = EHEA_PHY_LINK_UP;
if (netif_msg_link(port))
ehea_info("%s: Physical port up",
port->netdev->name);
+ if (prop_carrier_state)
+ netif_carrier_on(port->netdev);
} else {
+ port->phy_link = EHEA_PHY_LINK_DOWN;
if (netif_msg_link(port))
ehea_info("%s: Physical port down",
port->netdev->name);
+ if (prop_carrier_state)
+ netif_carrier_off(port->netdev);
}
if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PRIMARY, eqe))
netif_stop_queue(port->netdev);
break;
default:
- ehea_error("unknown event code %x, eqe=0x%lX", ec, eqe);
+ ehea_error("unknown event code %x, eqe=0x%llX", ec, eqe);
break;
}
}
static void ehea_neq_tasklet(unsigned long data)
{
- struct ehea_adapter *adapter = (struct ehea_adapter*)data;
+ struct ehea_adapter *adapter = (struct ehea_adapter *)data;
struct ehea_eqe *eqe;
u64 event_mask;
int ret;
struct ehea_qp_init_attr *init_attr = &pr->qp->init_attr;
- ret = ehea_init_fill_rq1(pr, init_attr->act_nr_rwqes_rq1
- - init_attr->act_nr_rwqes_rq2
- - init_attr->act_nr_rwqes_rq3 - 1);
+ ehea_init_fill_rq1(pr, init_attr->act_nr_rwqes_rq1
+ - init_attr->act_nr_rwqes_rq2
+ - init_attr->act_nr_rwqes_rq3 - 1);
- ret |= ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1);
+ ret = ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1);
ret |= ehea_refill_rq3(pr, init_attr->act_nr_rwqes_rq3 - 1);
struct ehea_port_res *pr;
int i, ret;
- for (i = 0; i < port->num_def_qps; i++) {
- pr = &port->port_res[i];
- snprintf(pr->int_recv_name, EHEA_IRQ_NAME_SIZE - 1
- , "%s-recv%d", dev->name, i);
- ret = ibmebus_request_irq(NULL, pr->recv_eq->attr.ist1,
- ehea_recv_irq_handler,
- IRQF_DISABLED, pr->int_recv_name, pr);
- if (ret) {
- ehea_error("failed registering irq for ehea_recv_int:"
- "port_res_nr:%d, ist=%X", i,
- pr->recv_eq->attr.ist1);
- goto out_free_seq;
- }
- if (netif_msg_ifup(port))
- ehea_info("irq_handle 0x%X for funct ehea_recv_int %d "
- "registered", pr->recv_eq->attr.ist1, i);
- }
snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff",
dev->name);
- ret = ibmebus_request_irq(NULL, port->qp_eq->attr.ist1,
+ ret = ibmebus_request_irq(port->qp_eq->attr.ist1,
ehea_qp_aff_irq_handler,
IRQF_DISABLED, port->int_aff_name, port);
if (ret) {
ehea_info("irq_handle 0x%X for function qp_aff_irq_handler "
"registered", port->qp_eq->attr.ist1);
+
for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) {
pr = &port->port_res[i];
snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1,
- "%s-send%d", dev->name, i);
- ret = ibmebus_request_irq(NULL, pr->send_eq->attr.ist1,
- ehea_send_irq_handler,
+ "%s-queue%d", dev->name, i);
+ ret = ibmebus_request_irq(pr->eq->attr.ist1,
+ ehea_recv_irq_handler,
IRQF_DISABLED, pr->int_send_name,
pr);
if (ret) {
- ehea_error("failed registering irq for ehea_send "
+ ehea_error("failed registering irq for ehea_queue "
"port_res_nr:%d, ist=%X", i,
- pr->send_eq->attr.ist1);
+ pr->eq->attr.ist1);
goto out_free_req;
}
if (netif_msg_ifup(port))
- ehea_info("irq_handle 0x%X for function ehea_send_int "
- "%d registered", pr->send_eq->attr.ist1, i);
+ ehea_info("irq_handle 0x%X for function ehea_queue_int "
+ "%d registered", pr->eq->attr.ist1, i);
}
out:
return ret;
+
out_free_req:
while (--i >= 0) {
- u32 ist = port->port_res[i].send_eq->attr.ist1;
- ibmebus_free_irq(NULL, ist, &port->port_res[i]);
+ u32 ist = port->port_res[i].eq->attr.ist1;
+ ibmebus_free_irq(ist, &port->port_res[i]);
}
+
out_free_qpeq:
- ibmebus_free_irq(NULL, port->qp_eq->attr.ist1, port);
+ ibmebus_free_irq(port->qp_eq->attr.ist1, port);
i = port->num_def_qps;
-out_free_seq:
- while (--i >= 0) {
- u32 ist = port->port_res[i].recv_eq->attr.ist1;
- ibmebus_free_irq(NULL, ist, &port->port_res[i]);
- }
+
goto out;
+
}
static void ehea_free_interrupts(struct net_device *dev)
int i;
/* send */
+
for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) {
pr = &port->port_res[i];
- ibmebus_free_irq(NULL, pr->send_eq->attr.ist1, pr);
+ ibmebus_free_irq(pr->eq->attr.ist1, pr);
if (netif_msg_intr(port))
ehea_info("free send irq for res %d with handle 0x%X",
- i, pr->send_eq->attr.ist1);
- }
-
- /* receive */
- for (i = 0; i < port->num_def_qps; i++) {
- pr = &port->port_res[i];
- ibmebus_free_irq(NULL, pr->recv_eq->attr.ist1, pr);
- if (netif_msg_intr(port))
- ehea_info("free recv irq for res %d with handle 0x%X",
- i, pr->recv_eq->attr.ist1);
+ i, pr->eq->attr.ist1);
}
/* associated events */
- ibmebus_free_irq(NULL, port->qp_eq->attr.ist1, port);
+ ibmebus_free_irq(port->qp_eq->attr.ist1, port);
if (netif_msg_intr(port))
ehea_info("associated event interrupt for handle 0x%X freed",
port->qp_eq->attr.ist1);
struct hcp_ehea_port_cb0 *cb0;
ret = -ENOMEM;
- cb0 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb0 = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb0)
goto out;
PXLY_RC_VLAN_FILTER)
| EHEA_BMASK_SET(PXLY_RC_JUMBO_FRAME, 1);
- for (i = 0; i < port->num_def_qps; i++)
- cb0->default_qpn_arr[i] = port->port_res[0].qp->init_attr.qp_nr;
+ 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");
ret = 0;
out_free:
- kfree(cb0);
+ free_page((unsigned long)cb0);
out:
return ret;
}
-static int ehea_gen_smrs(struct ehea_port_res *pr)
+int ehea_gen_smrs(struct ehea_port_res *pr)
{
- u64 hret;
+ int ret;
struct ehea_adapter *adapter = pr->port->adapter;
- hret = ehea_h_register_smr(adapter->handle, adapter->mr.handle,
- adapter->mr.vaddr, EHEA_MR_ACC_CTRL,
- adapter->pd, &pr->send_mr);
- if (hret != H_SUCCESS)
+ ret = ehea_gen_smr(adapter, &adapter->mr, &pr->send_mr);
+ if (ret)
goto out;
- hret = ehea_h_register_smr(adapter->handle, adapter->mr.handle,
- adapter->mr.vaddr, EHEA_MR_ACC_CTRL,
- adapter->pd, &pr->recv_mr);
- if (hret != H_SUCCESS)
- goto out_freeres;
+ ret = ehea_gen_smr(adapter, &adapter->mr, &pr->recv_mr);
+ if (ret)
+ goto out_free;
return 0;
-out_freeres:
- hret = ehea_h_free_resource(adapter->handle, pr->send_mr.handle);
- if (hret != H_SUCCESS)
- ehea_error("failed freeing SMR");
+out_free:
+ ehea_rem_mr(&pr->send_mr);
out:
+ ehea_error("Generating SMRS failed\n");
return -EIO;
}
-static int ehea_rem_smrs(struct ehea_port_res *pr)
+int ehea_rem_smrs(struct ehea_port_res *pr)
{
- struct ehea_adapter *adapter = pr->port->adapter;
- int ret = 0;
- u64 hret;
-
- hret = ehea_h_free_resource(adapter->handle, pr->send_mr.handle);
- if (hret != H_SUCCESS) {
- ret = -EIO;
- ehea_error("failed freeing send SMR for pr=%p", pr);
- }
-
- hret = ehea_h_free_resource(adapter->handle, pr->recv_mr.handle);
- if (hret != H_SUCCESS) {
- ret = -EIO;
- ehea_error("failed freeing recv SMR for pr=%p", pr);
- }
-
- return ret;
+ 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;
+ int arr_size = sizeof(void *) * max_q_entries;
q_skba->arr = vmalloc(arr_size);
if (!q_skba->arr)
memset(pr, 0, sizeof(struct ehea_port_res));
pr->port = port;
- spin_lock_init(&pr->send_lock);
- spin_lock_init(&pr->recv_lock);
spin_lock_init(&pr->xmit_lock);
spin_lock_init(&pr->netif_queue);
- pr->recv_eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0);
- if (!pr->recv_eq) {
- ehea_error("create_eq failed (recv_eq)");
- goto out_free;
- }
-
- pr->send_eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0);
- if (!pr->send_eq) {
- ehea_error("create_eq failed (send_eq)");
+ pr->eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0);
+ if (!pr->eq) {
+ ehea_error("create_eq failed (eq)");
goto out_free;
}
pr->recv_cq = ehea_create_cq(adapter, pr_cfg->max_entries_rcq,
- pr->recv_eq->fw_handle,
+ pr->eq->fw_handle,
port->logical_port_id);
if (!pr->recv_cq) {
ehea_error("create_cq failed (cq_recv)");
}
pr->send_cq = ehea_create_cq(adapter, pr_cfg->max_entries_scq,
- pr->send_eq->fw_handle,
+ pr->eq->fw_handle,
port->logical_port_id);
if (!pr->send_cq) {
ehea_error("create_cq failed (cq_send)");
init_attr->act_nr_rwqes_rq2,
init_attr->act_nr_rwqes_rq3);
- ret = ehea_init_q_skba(&pr->sq_skba, init_attr->act_nr_send_wqes + 1);
+ 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);
ret = -EIO;
goto out_free;
}
- tasklet_init(&pr->send_comp_task, ehea_send_irq_tasklet,
- (unsigned long)pr);
+
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, 64);
+
+ pr->lro_mgr.max_aggr = pr->port->lro_max_aggr;
+ pr->lro_mgr.max_desc = MAX_LRO_DESCRIPTORS;
+ pr->lro_mgr.lro_arr = pr->lro_desc;
+ pr->lro_mgr.get_skb_header = get_skb_hdr;
+ pr->lro_mgr.features = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
+ pr->lro_mgr.dev = port->netdev;
+ pr->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY;
+ pr->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
+
ret = 0;
goto out;
ehea_destroy_qp(pr->qp);
ehea_destroy_cq(pr->send_cq);
ehea_destroy_cq(pr->recv_cq);
- ehea_destroy_eq(pr->send_eq);
- ehea_destroy_eq(pr->recv_eq);
+ ehea_destroy_eq(pr->eq);
out:
return ret;
}
{
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->send_eq);
- ehea_destroy_eq(pr->recv_eq);
+ ehea_destroy_eq(pr->eq);
for (i = 0; i < pr->rq1_skba.len; i++)
if (pr->rq1_skba.arr[i])
u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0];
int skb_data_size = skb->len - skb->data_len;
int headersize;
- u64 tmp_addr;
/* Packet is TCP with TSO enabled */
swqe->tx_control |= EHEA_SWQE_TSO;
/* set sg1entry data */
sg1entry->l_key = lkey;
sg1entry->len = skb_data_size - headersize;
-
- tmp_addr = (u64)(skb->data + headersize);
- sg1entry->vaddr = tmp_addr;
+ sg1entry->vaddr =
+ ehea_map_vaddr(skb->data + headersize);
swqe->descriptors++;
}
} else
int skb_data_size = skb->len - skb->data_len;
u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0];
struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry;
- u64 tmp_addr;
/* Packet is any nonTSO type
*
/* copy sg1entry data */
sg1entry->l_key = lkey;
sg1entry->len = skb_data_size - SWQE2_MAX_IMM;
- tmp_addr = (u64)(skb->data + SWQE2_MAX_IMM);
- sg1entry->vaddr = tmp_addr;
+ sg1entry->vaddr =
+ ehea_map_vaddr(skb->data + SWQE2_MAX_IMM);
swqe->descriptors++;
}
} else {
struct ehea_vsgentry *sg_list, *sg1entry, *sgentry;
skb_frag_t *frag;
int nfrags, sg1entry_contains_frag_data, i;
- u64 tmp_addr;
nfrags = skb_shinfo(skb)->nr_frags;
sg1entry = &swqe->u.immdata_desc.sg_entry;
- sg_list = (struct ehea_vsgentry*)&swqe->u.immdata_desc.sg_list;
+ sg_list = (struct ehea_vsgentry *)&swqe->u.immdata_desc.sg_list;
swqe->descriptors = 0;
sg1entry_contains_frag_data = 0;
/* copy sg1entry data */
sg1entry->l_key = lkey;
sg1entry->len = frag->size;
- tmp_addr = (u64)(page_address(frag->page)
- + frag->page_offset);
- sg1entry->vaddr = tmp_addr;
+ sg1entry->vaddr =
+ ehea_map_vaddr(page_address(frag->page)
+ + frag->page_offset);
swqe->descriptors++;
sg1entry_contains_frag_data = 1;
}
sgentry->l_key = lkey;
sgentry->len = frag->size;
-
- tmp_addr = (u64)(page_address(frag->page)
- + frag->page_offset);
- sgentry->vaddr = tmp_addr;
+ sgentry->vaddr =
+ ehea_map_vaddr(page_address(frag->page)
+ + frag->page_offset);
swqe->descriptors++;
}
}
port->logical_port_id,
reg_type, port->mac_addr, 0, hcallid);
if (hret != H_SUCCESS) {
- ehea_error("reg_dereg_bcmc failed (tagged)");
+ ehea_error("%sregistering bc address failed (tagged)",
+ hcallid == H_REG_BCMC ? "" : "de");
ret = -EIO;
goto out_herr;
}
port->logical_port_id,
reg_type, port->mac_addr, 0, hcallid);
if (hret != H_SUCCESS) {
- ehea_error("reg_dereg_bcmc failed (vlan)");
+ ehea_error("%sregistering bc address failed (vlan)",
+ hcallid == H_REG_BCMC ? "" : "de");
ret = -EIO;
}
out_herr:
goto out;
}
- cb0 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb0 = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb0) {
ehea_error("no mem for cb0");
ret = -ENOMEM;
memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len);
/* Deregister old MAC in pHYP */
- ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
- if (ret)
- goto out_free;
+ 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 */
- ret = ehea_broadcast_reg_helper(port, H_REG_BCMC);
- if (ret)
- goto out_free;
+ 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:
- kfree(cb0);
+ free_page((unsigned long)cb0);
out:
return ret;
}
if ((enable && port->promisc) || (!enable && !port->promisc))
return;
- cb7 = kzalloc(PAGE_SIZE, GFP_ATOMIC);
+ cb7 = (void *)get_zeroed_page(GFP_ATOMIC);
if (!cb7) {
ehea_error("no mem for cb7");
goto out;
port->promisc = enable;
out:
- kfree(cb7);
+ free_page((unsigned long)cb7);
return;
}
}
}
-static void ehea_add_multicast_entry(struct ehea_port* port, u8* mc_mac_addr)
+static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr)
{
struct ehea_mc_list *ehea_mcl_entry;
u64 hret;
if (dev->flags & IFF_ALLMULTI) {
ehea_allmulti(dev, 1);
- return;
+ goto out;
}
ehea_allmulti(dev, 0);
- if (dev->mc_count) {
+ if (!netdev_mc_empty(dev)) {
ret = ehea_drop_multicast_list(dev);
if (ret) {
/* Dropping the current multicast list failed.
ehea_allmulti(dev, 1);
}
- if (dev->mc_count > port->adapter->max_mc_mac) {
- ehea_info("Mcast registration limit reached (0x%lx). "
+ if (netdev_mc_count(dev) > port->adapter->max_mc_mac) {
+ ehea_info("Mcast registration limit reached (0x%llx). "
"Use ALLMULTI!",
port->adapter->max_mc_mac);
goto out;
}
- for (i = 0, k_mcl_entry = dev->mc_list;
- i < dev->mc_count;
- i++, k_mcl_entry = k_mcl_entry->next) {
+ for (i = 0, k_mcl_entry = dev->mc_list; i < netdev_mc_count(dev); i++,
+ k_mcl_entry = k_mcl_entry->next)
ehea_add_multicast_entry(port, k_mcl_entry->dmi_addr);
- }
+
}
out:
+ ehea_update_bcmc_registrations();
return;
}
{
if (skb->protocol == htons(ETH_P_IP)) {
const struct iphdr *iph = ip_hdr(skb);
+
/* IPv4 */
swqe->tx_control |= EHEA_SWQE_CRC
| EHEA_SWQE_IP_CHECKSUM
swqe->tx_control &= ~EHEA_SWQE_TCP_CHECKSUM;
else
write_udp_offset_end(swqe, skb);
-
} else if (iph->protocol == IPPROTO_TCP) {
write_tcp_offset_end(swqe, skb);
}
if (skb->protocol == htons(ETH_P_IP)) {
const struct iphdr *iph = ip_hdr(skb);
+
/* IPv4 */
write_ip_start_end(swqe, skb);
dev_kfree_skb(skb);
}
+static inline int ehea_hash_skb(struct sk_buff *skb, int num_qps)
+{
+ struct tcphdr *tcp;
+ u32 tmp;
+
+ if ((skb->protocol == htons(ETH_P_IP)) &&
+ (ip_hdr(skb)->protocol == IPPROTO_TCP)) {
+ tcp = (struct tcphdr *)(skb_network_header(skb) +
+ (ip_hdr(skb)->ihl * 4));
+ tmp = (tcp->source + (tcp->dest << 16)) % 31;
+ tmp += ip_hdr(skb)->daddr % 31;
+ return tmp % num_qps;
+ } else
+ return 0;
+}
+
static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ehea_port *port = netdev_priv(dev);
unsigned long flags;
u32 lkey;
int swqe_index;
- struct ehea_port_res *pr = &port->port_res[0];
+ struct ehea_port_res *pr;
+
+ pr = &port->port_res[ehea_hash_skb(skb, port->num_tx_qps)];
- spin_lock(&pr->xmit_lock);
+ if (!spin_trylock(&pr->xmit_lock))
+ return NETDEV_TX_BUSY;
+
+ if (pr->queue_stopped) {
+ spin_unlock(&pr->xmit_lock);
+ return NETDEV_TX_BUSY;
+ }
swqe = ehea_get_swqe(pr->qp, &swqe_index);
memset(swqe, 0, SWQE_HEADER_SIZE);
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;
lkey = pr->send_mr.lkey;
ehea_xmit2(skb, dev, swqe, lkey);
-
- if (pr->swqe_count >= (EHEA_SIG_IV_LONG - 1)) {
- swqe->wr_id |= EHEA_BMASK_SET(EHEA_WR_ID_REFILL,
- EHEA_SIG_IV_LONG);
- swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION;
- pr->swqe_count = 0;
- } else
- pr->swqe_count += 1;
+ swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION;
}
pr->swqe_id_counter += 1;
ehea_dump(swqe, 512, "swqe");
}
+ if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) {
+ netif_stop_queue(dev);
+ swqe->tx_control |= EHEA_SWQE_PURGE;
+ }
+
ehea_post_swqe(pr->qp, swqe);
pr->tx_packets++;
if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) {
spin_lock_irqsave(&pr->netif_queue, flags);
if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) {
+ pr->p_stats.queue_stopped++;
netif_stop_queue(dev);
pr->queue_stopped = 1;
}
port->vgrp = grp;
- cb1 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb1 = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb1) {
ehea_error("no mem for cb1");
goto out;
}
- if (grp)
- memset(cb1->vlan_filter, 0, sizeof(cb1->vlan_filter));
- else
- memset(cb1->vlan_filter, 0xFF, sizeof(cb1->vlan_filter));
-
hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id,
H_PORT_CB1, H_PORT_CB1_ALL, cb1);
if (hret != H_SUCCESS)
ehea_error("modify_ehea_port failed");
- kfree(cb1);
+ free_page((unsigned long)cb1);
out:
return;
}
int index;
u64 hret;
- cb1 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb1 = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb1) {
ehea_error("no mem for cb1");
goto out;
}
index = (vid / 64);
- cb1->vlan_filter[index] |= ((u64)(1 << (vid & 0x3F)));
+ 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)
ehea_error("modify_ehea_port failed");
out:
- kfree(cb1);
+ free_page((unsigned long)cb1);
return;
}
vlan_group_set_device(port->vgrp, vid, NULL);
- cb1 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb1 = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb1) {
ehea_error("no mem for cb1");
goto out;
}
index = (vid / 64);
- cb1->vlan_filter[index] &= ~((u64)(1 << (vid & 0x3F)));
+ 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)
ehea_error("modify_ehea_port failed");
out:
- kfree(cb1);
+ free_page((unsigned long)cb1);
return;
}
u64 hret;
u16 dummy16 = 0;
u64 dummy64 = 0;
- struct hcp_modify_qp_cb0* cb0;
+ struct hcp_modify_qp_cb0 *cb0;
- cb0 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb0 = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb0) {
ret = -ENOMEM;
goto out;
ret = 0;
out:
- kfree(cb0);
+ free_page((unsigned long)cb0);
return ret;
}
}
pr_cfg.max_entries_rcq = rq1_entries + rq2_entries + rq3_entries;
- pr_cfg.max_entries_scq = sq_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;
int ret = 0;
int i;
- for(i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++)
+ for (i = 0; i < port->num_def_qps + port->num_add_tx_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);
- u64 mac_addr = 0;
if (port->state == EHEA_PORT_UP)
return 0;
goto out_clean_pr;
}
- ret = ehea_broadcast_reg_helper(port, H_REG_BCMC);
- if (ret) {
- ret = -EIO;
- ehea_error("out_clean_pr");
- goto out_clean_pr;
- }
- mac_addr = (*(u64*)dev->dev_addr) >> 16;
-
ret = ehea_reg_interrupts(dev);
if (ret) {
- ehea_error("out_dereg_bc");
- goto out_dereg_bc;
+ ehea_error("reg_interrupts failed. ret:%d", ret);
+ goto out_clean_pr;
}
- for(i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) {
+ for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) {
ret = ehea_activate_qp(port->adapter, port->port_res[i].qp);
if (ret) {
ehea_error("activate_qp failed");
}
}
- for(i = 0; i < port->num_def_qps; i++) {
+ for (i = 0; i < port->num_def_qps; i++) {
ret = ehea_fill_port_res(&port->port_res[i]);
if (ret) {
ehea_error("out_free_irqs");
}
}
- ret = 0;
+ 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_dereg_bc:
- ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
-
out_clean_pr:
ehea_clean_all_portres(port);
out:
+ if (ret)
+ ehea_info("Failed starting %s. ret=%i", dev->name, 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 + port->num_add_tx_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 + port->num_add_tx_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);
- down(&port->port_lock);
+ mutex_lock(&port->port_lock);
if (netif_msg_ifup(port))
ehea_info("enabling port %s", dev->name);
ret = ehea_up(dev);
- if (!ret)
+ if (!ret) {
+ port_napi_enable(port);
netif_start_queue(dev);
+ }
- up(&port->port_lock);
+ mutex_unlock(&port->port_lock);
return ret;
}
static int ehea_down(struct net_device *dev)
{
- int ret, i;
+ int ret;
struct ehea_port *port = netdev_priv(dev);
if (port->state == EHEA_PORT_DOWN)
return 0;
ehea_drop_multicast_list(dev);
+ ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
+
ehea_free_interrupts(dev);
- for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++)
- tasklet_kill(&port->port_res[i].send_comp_task);
+ port->state = EHEA_PORT_DOWN;
+
+ ehea_update_bcmc_registrations();
- ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
ret = ehea_clean_all_portres(port);
- port->state = EHEA_PORT_DOWN;
+ if (ret)
+ ehea_info("Failed freeing resources for %s. ret=%i",
+ dev->name, ret);
+
+ ehea_update_firmware_handles();
+
return ret;
}
if (netif_msg_ifdown(port))
ehea_info("disabling port %s", dev->name);
- flush_workqueue(port->adapter->ehea_wq);
- down(&port->port_lock);
+ set_bit(__EHEA_DISABLE_PORT_RESET, &port->flags);
+ cancel_work_sync(&port->reset_task);
+ mutex_lock(&port->port_lock);
netif_stop_queue(dev);
+ port_napi_disable(port);
ret = ehea_down(dev);
- up(&port->port_lock);
+ 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 + port->num_add_tx_qps; i++) {
+ struct ehea_port_res *pr = &port->port_res[i];
+ int swqe_max = pr->sq_skba_size - 2 - pr->swqe_ll_count;
+ int k = 0;
+ while (atomic_read(&pr->swqe_avail) < swqe_max) {
+ msleep(5);
+ if (++k == 20)
+ break;
+ }
+ }
+}
+
+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 + port->num_add_tx_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) {
+ ehea_error("query_ehea_qp failed (1)");
+ 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) {
+ ehea_error("modify_ehea_qp failed (1)");
+ 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) {
+ ehea_error("query_ehea_qp failed (2)");
+ goto out;
+ }
+
+ /* deregister shared memory regions */
+ dret = ehea_rem_smrs(pr);
+ if (dret) {
+ ehea_error("unreg shared memory region failed");
+ goto out;
+ }
+ }
+
+ ret = 0;
+out:
+ free_page((unsigned long)cb0);
+
+ return ret;
+}
+
+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);
+ }
+}
+
+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) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < (port->num_def_qps + port->num_add_tx_qps); i++) {
+ struct ehea_port_res *pr = &port->port_res[i];
+ struct ehea_qp *qp = pr->qp;
+
+ ret = ehea_gen_smrs(pr);
+ if (ret) {
+ ehea_error("creation of shared memory regions failed");
+ 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) {
+ ehea_error("query_ehea_qp failed (1)");
+ 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) {
+ ehea_error("modify_ehea_qp failed (1)");
+ 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) {
+ ehea_error("query_ehea_qp failed (2)");
+ 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;
}
struct net_device *dev = port->netdev;
port->resets++;
- down(&port->port_lock);
+ mutex_lock(&port->port_lock);
netif_stop_queue(dev);
- netif_poll_disable(dev);
- ret = ehea_down(dev);
- if (ret)
- ehea_error("ehea_down failed. not all resources are freed");
+ port_napi_disable(port);
+
+ ehea_down(dev);
ret = ehea_up(dev);
- if (ret) {
- ehea_error("Reset device %s failed: ret=%d", dev->name, ret);
+ if (ret)
goto out;
- }
+
+ ehea_set_multicast_list(dev);
if (netif_msg_timer(port))
ehea_info("Device %s resetted successfully", dev->name);
- netif_poll_enable(dev);
+ port_napi_enable(port);
+
netif_wake_queue(dev);
out:
- up(&port->port_lock);
+ mutex_unlock(&port->port_lock);
+ return;
+}
+
+static void ehea_rereg_mrs(struct work_struct *work)
+{
+ int ret, i;
+ struct ehea_adapter *adapter;
+
+ mutex_lock(&dlpar_mem_lock);
+ ehea_info("LPAR memory changed - re-initializing driver");
+
+ 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_stop_queue(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);
+ }
+ }
+
+ /* Unregister old memory region */
+ ret = ehea_rem_mr(&adapter->mr);
+ if (ret) {
+ ehea_error("unregister MR failed - driver"
+ " inoperable!");
+ 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) {
+ ehea_error("register MR failed - driver"
+ " inoperable!");
+ 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);
+ port_napi_enable(port);
+ ret = ehea_restart_qps(dev);
+ if (!ret)
+ netif_wake_queue(dev);
+ mutex_unlock(&port->port_lock);
+ }
+ }
+ }
+ }
+ ehea_info("re-initializing driver complete");
+out:
+ mutex_unlock(&dlpar_mem_lock);
return;
}
{
struct ehea_port *port = netdev_priv(dev);
- if (netif_carrier_ok(dev))
- queue_work(port->adapter->ehea_wq, &port->reset_task);
+ if (netif_carrier_ok(dev) &&
+ !test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))
+ ehea_schedule_port_reset(port);
}
int ehea_sense_adapter_attr(struct ehea_adapter *adapter)
u64 hret;
int ret;
- cb = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb) {
ret = -ENOMEM;
goto out;
ret = 0;
out_herr:
- kfree(cb);
+ free_page((unsigned long)cb);
out:
return ret;
}
*jumbo = 0;
/* (Try to) enable *jumbo frames */
- cb4 = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ cb4 = (void *)get_zeroed_page(GFP_KERNEL);
if (!cb4) {
ehea_error("no mem for cb4");
ret = -ENOMEM;
} else
ret = -EINVAL;
- kfree(cb4);
+ free_page((unsigned long)cb4);
}
out:
return ret;
struct device_attribute *attr, char *buf)
{
struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev);
- return sprintf(buf, "0x%X", port->logical_port_id);
+ return sprintf(buf, "%d", port->logical_port_id);
}
static DEVICE_ATTR(log_port_id, S_IRUSR | S_IRGRP | S_IROTH, ehea_show_port_id,
int ret;
port->ofdev.node = of_node_get(dn);
- port->ofdev.dev.parent = &port->adapter->ebus_dev->ofdev.dev;
+ port->ofdev.dev.parent = &port->adapter->ofdev->dev;
+ port->ofdev.dev.bus = &ibmebus_bus_type;
- sprintf(port->ofdev.dev.bus_id, "port%d", port->logical_port_id);
+ dev_set_name(&port->ofdev.dev, "port%d", port_name_cnt++);
port->ofdev.dev.release = logical_port_release;
ret = of_device_register(&port->ofdev);
}
ret = device_create_file(&port->ofdev.dev, &dev_attr_log_port_id);
- if (ret) {
+ if (ret) {
ehea_error("failed to register attributes, ret=%d", ret);
goto out_unreg_of_dev;
}
-
+
return &port->ofdev.dev;
out_unreg_of_dev:
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,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = ehea_netpoll,
+#endif
+ .ndo_get_stats = ehea_get_stats,
+ .ndo_set_mac_address = ehea_set_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_multicast_list = ehea_set_multicast_list,
+ .ndo_change_mtu = ehea_change_mtu,
+ .ndo_vlan_rx_register = ehea_vlan_rx_register,
+ .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,
+};
+
struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter,
u32 logical_port_id,
struct device_node *dn)
port = netdev_priv(dev);
- sema_init(&port->port_lock, 1);
+ mutex_init(&port->port_lock);
port->state = EHEA_PORT_DOWN;
port->sig_comp_iv = sq_entries / 10;
SET_NETDEV_DEV(dev, port_dev);
/* initialize net_device structure */
- SET_MODULE_OWNER(dev);
-
memcpy(dev->dev_addr, &port->mac_addr, ETH_ALEN);
- dev->open = ehea_open;
- dev->poll = ehea_poll;
- dev->weight = 64;
- dev->stop = ehea_stop;
- dev->hard_start_xmit = ehea_start_xmit;
- dev->get_stats = ehea_get_stats;
- dev->set_multicast_list = ehea_set_multicast_list;
- dev->set_mac_address = ehea_set_mac_addr;
- dev->change_mtu = ehea_change_mtu;
- dev->vlan_rx_register = ehea_vlan_rx_register;
- dev->vlan_rx_add_vid = ehea_vlan_rx_add_vid;
- dev->vlan_rx_kill_vid = ehea_vlan_rx_kill_vid;
+ dev->netdev_ops = &ehea_netdev_ops;
+ ehea_set_ethtool_ops(dev);
+
dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO
- | NETIF_F_HIGHDMA | NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_TX
+ | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER
| NETIF_F_LLTX;
- dev->tx_timeout = &ehea_tx_watchdog;
dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT;
INIT_WORK(&port->reset_task, ehea_reset_port);
- ehea_set_ethtool_ops(dev);
-
ret = register_netdev(dev);
if (ret) {
ehea_error("register_netdev failed. ret=%d", ret);
goto out_unreg_port;
}
+ port->lro_max_aggr = lro_max_aggr;
+
ret = ehea_get_jumboframe_status(port, &jumbo);
- if (ret)
+ if (ret)
ehea_error("failed determining jumbo frame status for %s",
port->netdev->name);
ehea_info("%s: Jumbo frames are %sabled", dev->name,
jumbo == 1 ? "en" : "dis");
+ adapter->active_ports++;
+
return port;
out_unreg_port:
static void ehea_shutdown_single_port(struct ehea_port *port)
{
+ struct ehea_adapter *adapter = port->adapter;
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 = NULL;
- u32 *dn_log_port_id;
- int port_setup_ok = 0;
+ const u32 *dn_log_port_id;
int i = 0;
- lhea_dn = adapter->ebus_dev->ofdev.node;
- do {
- eth_dn = of_get_next_child(lhea_dn, eth_dn);
- if (!eth_dn)
- break;
+ lhea_dn = adapter->ofdev->node;
+ while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) {
- dn_log_port_id = (u32*)get_property(eth_dn, "ibm,hea-port-no",
- NULL);
+ dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no",
+ NULL);
if (!dn_log_port_id) {
ehea_error("bad device node: eth_dn name=%s",
eth_dn->full_name);
continue;
}
+ if (ehea_add_adapter_mr(adapter)) {
+ ehea_error("creating MR failed");
+ 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])
ehea_info("%s -> logical port id #%d",
- adapter->port[i]->netdev->name,
+ adapter->port[i]->netdev->name,
*dn_log_port_id);
- i++;
- } while (eth_dn);
-
- of_node_put(lhea_dn);
-
- /* Check for succesfully set up ports */
- for (i = 0; i < EHEA_MAX_PORTS; i++)
- if (adapter->port[i])
- port_setup_ok++;
-
- if (port_setup_ok)
- return 0; /* At least some ports are setup correctly */
+ else
+ ehea_remove_adapter_mr(adapter);
- return -EINVAL;
+ i++;
+ };
+ return 0;
}
-static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter,
- u32 logical_port_id)
+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 = NULL;
- u32 *dn_log_port_id;
-
- lhea_dn = adapter->ebus_dev->ofdev.node;
- do {
- eth_dn = of_get_next_child(lhea_dn, eth_dn);
- if (!eth_dn)
- break;
+ const u32 *dn_log_port_id;
- dn_log_port_id = (u32*)get_property(eth_dn, "ibm,hea-port-no",
- NULL);
+ lhea_dn = adapter->ofdev->node;
+ while ((eth_dn = of_get_next_child(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;
-
- } while (eth_dn);
-
- of_node_put(lhea_dn);
+ };
return NULL;
}
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct ehea_adapter *adapter = dev->driver_data;
+ 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, "%X", &logical_port_id);
+ sscanf(buf, "%d", &logical_port_id);
port = ehea_get_port(adapter, logical_port_id);
port->netdev->name);
return -EINVAL;
}
-
+
eth_dn = ehea_get_eth_dn(adapter, logical_port_id);
if (!eth_dn) {
ehea_info("no logical port with id %d found", logical_port_id);
return -EINVAL;
}
-
+
+ if (ehea_add_adapter_mr(adapter)) {
+ ehea_error("creating MR failed");
+ 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++)
+ for (i = 0; i < EHEA_MAX_PORTS; i++)
if (!adapter->port[i]) {
adapter->port[i] = port;
break;
ehea_info("added %s (logical port id=%d)", port->netdev->name,
logical_port_id);
- } else
- return -EIO;
+ } else {
+ ehea_remove_adapter_mr(adapter);
+ return -EIO;
+ }
return (ssize_t) count;
}
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct ehea_adapter *adapter = dev->driver_data;
+ struct ehea_adapter *adapter = dev_get_drvdata(dev);
struct ehea_port *port;
int i;
u32 logical_port_id;
- sscanf(buf, "%X", &logical_port_id);
+ sscanf(buf, "%d", &logical_port_id);
port = ehea_get_port(adapter, logical_port_id);
ehea_shutdown_single_port(port);
- for (i=0; i < EHEA_MAX_PORTS; i++)
+ for (i = 0; i < EHEA_MAX_PORTS; i++)
if (adapter->port[i] == port) {
adapter->port[i] = NULL;
break;
return -EINVAL;
}
+ ehea_remove_adapter_mr(adapter);
+
return (ssize_t) count;
}
static DEVICE_ATTR(probe_port, S_IWUSR, NULL, ehea_probe_port);
static DEVICE_ATTR(remove_port, S_IWUSR, NULL, ehea_remove_port);
-int ehea_create_device_sysfs(struct ibmebus_dev *dev)
+int ehea_create_device_sysfs(struct of_device *dev)
{
- int ret = device_create_file(&dev->ofdev.dev, &dev_attr_probe_port);
+ int ret = device_create_file(&dev->dev, &dev_attr_probe_port);
if (ret)
goto out;
- ret = device_create_file(&dev->ofdev.dev, &dev_attr_remove_port);
+ ret = device_create_file(&dev->dev, &dev_attr_remove_port);
out:
return ret;
}
-void ehea_remove_device_sysfs(struct ibmebus_dev *dev)
+void ehea_remove_device_sysfs(struct of_device *dev)
{
- device_remove_file(&dev->ofdev.dev, &dev_attr_probe_port);
- device_remove_file(&dev->ofdev.dev, &dev_attr_remove_port);
+ device_remove_file(&dev->dev, &dev_attr_probe_port);
+ device_remove_file(&dev->dev, &dev_attr_remove_port);
}
-static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev,
+static int __devinit ehea_probe_adapter(struct of_device *dev,
const struct of_device_id *id)
{
struct ehea_adapter *adapter;
- u64 *adapter_handle;
+ const u64 *adapter_handle;
int ret;
+ if (!dev || !dev->node) {
+ ehea_error("Invalid ibmebus device probed");
+ return -EINVAL;
+ }
+
adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
if (!adapter) {
ret = -ENOMEM;
- dev_err(&dev->ofdev.dev, "no mem for ehea_adapter\n");
+ dev_err(&dev->dev, "no mem for ehea_adapter\n");
goto out;
}
- adapter->ebus_dev = dev;
+ list_add(&adapter->list, &adapter_list);
+
+ adapter->ofdev = dev;
- adapter_handle = (u64*)get_property(dev->ofdev.node, "ibm,hea-handle",
- NULL);
+ adapter_handle = of_get_property(dev->node, "ibm,hea-handle",
+ NULL);
if (adapter_handle)
adapter->handle = *adapter_handle;
if (!adapter->handle) {
- dev_err(&dev->ofdev.dev, "failed getting handle for adapter"
- " '%s'\n", dev->ofdev.node->full_name);
+ dev_err(&dev->dev, "failed getting handle for adapter"
+ " '%s'\n", dev->node->full_name);
ret = -ENODEV;
goto out_free_ad;
}
adapter->pd = EHEA_PD_ID;
- dev->ofdev.dev.driver_data = adapter;
+ dev_set_drvdata(&dev->dev, adapter);
- ret = ehea_reg_mr_adapter(adapter);
- if (ret) {
- dev_err(&dev->ofdev.dev, "reg_mr_adapter failed\n");
- goto out_free_ad;
- }
/* initialize adapter and ports */
/* get adapter properties */
ret = ehea_sense_adapter_attr(adapter);
if (ret) {
- dev_err(&dev->ofdev.dev, "sense_adapter_attr failed: %d", ret);
- goto out_free_res;
+ 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) {
- dev_err(&dev->ofdev.dev, "NEQ creation failed");
- goto out_free_res;
+ ret = -EIO;
+ dev_err(&dev->dev, "NEQ creation failed\n");
+ goto out_free_ad;
}
tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet,
(unsigned long)adapter);
- ret = ibmebus_request_irq(NULL, adapter->neq->attr.ist1,
+ ret = ibmebus_request_irq(adapter->neq->attr.ist1,
ehea_interrupt_neq, IRQF_DISABLED,
"ehea_neq", adapter);
if (ret) {
- dev_err(&dev->ofdev.dev, "requesting NEQ IRQ failed");
+ dev_err(&dev->dev, "requesting NEQ IRQ failed\n");
goto out_kill_eq;
}
- adapter->ehea_wq = create_workqueue("ehea_wq");
- if (!adapter->ehea_wq)
+ ret = ehea_create_device_sysfs(dev);
+ if (ret)
goto out_free_irq;
- if (ehea_create_device_sysfs(dev))
- goto out_kill_wq;
-
ret = ehea_setup_ports(adapter);
if (ret) {
- dev_err(&dev->ofdev.dev, "setup_ports failed");
+ dev_err(&dev->dev, "setup_ports failed\n");
goto out_rem_dev_sysfs;
}
out_rem_dev_sysfs:
ehea_remove_device_sysfs(dev);
-out_kill_wq:
- destroy_workqueue(adapter->ehea_wq);
-
out_free_irq:
- ibmebus_free_irq(NULL, adapter->neq->attr.ist1, adapter);
+ ibmebus_free_irq(adapter->neq->attr.ist1, adapter);
out_kill_eq:
ehea_destroy_eq(adapter->neq);
-out_free_res:
- ehea_h_free_resource(adapter->handle, adapter->mr.handle);
-
out_free_ad:
+ list_del(&adapter->list);
kfree(adapter);
+
out:
+ ehea_update_firmware_handles();
+
return ret;
}
-static int __devexit ehea_remove(struct ibmebus_dev *dev)
+static int __devexit ehea_remove(struct of_device *dev)
{
- struct ehea_adapter *adapter = dev->ofdev.dev.driver_data;
- u64 hret;
+ struct ehea_adapter *adapter = dev_get_drvdata(&dev->dev);
int i;
for (i = 0; i < EHEA_MAX_PORTS; i++)
ehea_remove_device_sysfs(dev);
- destroy_workqueue(adapter->ehea_wq);
+ flush_scheduled_work();
- ibmebus_free_irq(NULL, adapter->neq->attr.ist1, adapter);
+ ibmebus_free_irq(adapter->neq->attr.ist1, adapter);
tasklet_kill(&adapter->neq_tasklet);
ehea_destroy_eq(adapter->neq);
-
- hret = ehea_h_free_resource(adapter->handle, adapter->mr.handle);
- if (hret) {
- dev_err(&dev->ofdev.dev, "free_resource_mr failed");
- return -EIO;
- }
+ ehea_remove_adapter_mr(adapter);
+ list_del(&adapter->list);
kfree(adapter);
+
+ ehea_update_firmware_handles();
+
return 0;
}
+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 int ehea_mem_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct memory_notify *arg = data;
+ switch (action) {
+ case MEM_CANCEL_OFFLINE:
+ ehea_info("memory offlining canceled");
+ /* Readd canceled memory block */
+ case MEM_ONLINE:
+ ehea_info("memory is going online");
+ set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
+ if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages))
+ return NOTIFY_BAD;
+ ehea_rereg_mrs(NULL);
+ break;
+ case MEM_GOING_OFFLINE:
+ ehea_info("memory is going offline");
+ set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
+ if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages))
+ return NOTIFY_BAD;
+ ehea_rereg_mrs(NULL);
+ break;
+ default:
+ break;
+ }
+
+ ehea_update_firmware_handles();
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block ehea_mem_nb = {
+ .notifier_call = ehea_mem_notifier,
+};
+
+static int ehea_reboot_notifier(struct notifier_block *nb,
+ unsigned long action, void *unused)
+{
+ if (action == SYS_RESTART) {
+ ehea_info("Reboot: freeing all eHEA resources");
+ ibmebus_unregister_driver(&ehea_driver);
+ }
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block ehea_reboot_nb = {
+ .notifier_call = ehea_reboot_notifier,
+};
+
static int check_module_parm(void)
{
int ret = 0;
return ret;
}
-static struct of_device_id ehea_device_table[] = {
- {
- .name = "lhea",
- .compatible = "IBM,lhea",
- },
- {},
-};
+static ssize_t ehea_show_capabilities(struct device_driver *drv,
+ char *buf)
+{
+ return sprintf(buf, "%d", EHEA_CAPABILITIES);
+}
-static struct ibmebus_driver ehea_driver = {
- .name = "ehea",
- .id_table = ehea_device_table,
- .probe = ehea_probe_adapter,
- .remove = ehea_remove,
-};
+static DRIVER_ATTR(capabilities, S_IRUSR | S_IRGRP | S_IROTH,
+ ehea_show_capabilities, NULL);
int __init ehea_module_init(void)
{
printk(KERN_INFO "IBM eHEA ethernet device driver (Release %s)\n",
DRV_VERSION);
+
+ INIT_WORK(&ehea_rereg_mr_task, ehea_rereg_mrs);
+ 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);
+
+ ret = ehea_create_busmap();
if (ret)
+ goto out;
+
+ ret = register_reboot_notifier(&ehea_reboot_nb);
+ if (ret)
+ ehea_info("failed registering reboot notifier");
+
+ ret = register_memory_notifier(&ehea_mem_nb);
+ if (ret)
+ ehea_info("failed registering memory remove notifier");
+
+ ret = crash_shutdown_register(&ehea_crash_handler);
+ if (ret)
+ ehea_info("failed registering crash handler");
+
+ ret = ibmebus_register_driver(&ehea_driver);
+ if (ret) {
ehea_error("failed registering eHEA device driver on ebus");
+ goto out2;
+ }
+
+ ret = driver_create_file(&ehea_driver.driver,
+ &driver_attr_capabilities);
+ if (ret) {
+ ehea_error("failed to register capabilities attribute, ret=%d",
+ ret);
+ goto out3;
+ }
+
+ return ret;
+out3:
+ ibmebus_unregister_driver(&ehea_driver);
+out2:
+ unregister_memory_notifier(&ehea_mem_nb);
+ unregister_reboot_notifier(&ehea_reboot_nb);
+ crash_shutdown_unregister(&ehea_crash_handler);
out:
return ret;
}
static void __exit ehea_module_exit(void)
{
+ int ret;
+
+ flush_scheduled_work();
+ driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities);
ibmebus_unregister_driver(&ehea_driver);
+ unregister_reboot_notifier(&ehea_reboot_nb);
+ ret = crash_shutdown_unregister(&ehea_crash_handler);
+ if (ret)
+ ehea_info("failed unregistering crash handler");
+ unregister_memory_notifier(&ehea_mem_nb);
+ kfree(ehea_fw_handles.arr);
+ kfree(ehea_bcmc_regs.arr);
+ ehea_destroy_busmap();
}
module_init(ehea_module_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff