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Diffstat (limited to 'net/smc/smc_ib.c')
-rw-r--r--net/smc/smc_ib.c77
1 files changed, 45 insertions, 32 deletions
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c
index 04b6fefb8bce..f0a5064bf9bd 100644
--- a/net/smc/smc_ib.c
+++ b/net/smc/smc_ib.c
@@ -249,9 +249,10 @@ static void smc_ib_port_event_work(struct work_struct *work)
clear_bit(port_idx, &smcibdev->port_event_mask);
if (!smc_ib_port_active(smcibdev, port_idx + 1)) {
set_bit(port_idx, smcibdev->ports_going_away);
- smc_port_terminate(smcibdev, port_idx + 1);
+ smcr_port_err(smcibdev, port_idx + 1);
} else {
clear_bit(port_idx, smcibdev->ports_going_away);
+ smcr_port_add(smcibdev, port_idx + 1);
}
}
}
@@ -389,15 +390,15 @@ void smc_ib_put_memory_region(struct ib_mr *mr)
ib_dereg_mr(mr);
}
-static int smc_ib_map_mr_sg(struct smc_buf_desc *buf_slot)
+static int smc_ib_map_mr_sg(struct smc_buf_desc *buf_slot, u8 link_idx)
{
unsigned int offset = 0;
int sg_num;
/* map the largest prefix of a dma mapped SG list */
- sg_num = ib_map_mr_sg(buf_slot->mr_rx[SMC_SINGLE_LINK],
- buf_slot->sgt[SMC_SINGLE_LINK].sgl,
- buf_slot->sgt[SMC_SINGLE_LINK].orig_nents,
+ sg_num = ib_map_mr_sg(buf_slot->mr_rx[link_idx],
+ buf_slot->sgt[link_idx].sgl,
+ buf_slot->sgt[link_idx].orig_nents,
&offset, PAGE_SIZE);
return sg_num;
@@ -405,29 +406,29 @@ static int smc_ib_map_mr_sg(struct smc_buf_desc *buf_slot)
/* Allocate a memory region and map the dma mapped SG list of buf_slot */
int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags,
- struct smc_buf_desc *buf_slot)
+ struct smc_buf_desc *buf_slot, u8 link_idx)
{
- if (buf_slot->mr_rx[SMC_SINGLE_LINK])
+ if (buf_slot->mr_rx[link_idx])
return 0; /* already done */
- buf_slot->mr_rx[SMC_SINGLE_LINK] =
+ buf_slot->mr_rx[link_idx] =
ib_alloc_mr(pd, IB_MR_TYPE_MEM_REG, 1 << buf_slot->order);
- if (IS_ERR(buf_slot->mr_rx[SMC_SINGLE_LINK])) {
+ if (IS_ERR(buf_slot->mr_rx[link_idx])) {
int rc;
- rc = PTR_ERR(buf_slot->mr_rx[SMC_SINGLE_LINK]);
- buf_slot->mr_rx[SMC_SINGLE_LINK] = NULL;
+ rc = PTR_ERR(buf_slot->mr_rx[link_idx]);
+ buf_slot->mr_rx[link_idx] = NULL;
return rc;
}
- if (smc_ib_map_mr_sg(buf_slot) != 1)
+ if (smc_ib_map_mr_sg(buf_slot, link_idx) != 1)
return -EINVAL;
return 0;
}
/* synchronize buffer usage for cpu access */
-void smc_ib_sync_sg_for_cpu(struct smc_ib_device *smcibdev,
+void smc_ib_sync_sg_for_cpu(struct smc_link *lnk,
struct smc_buf_desc *buf_slot,
enum dma_data_direction data_direction)
{
@@ -435,11 +436,11 @@ void smc_ib_sync_sg_for_cpu(struct smc_ib_device *smcibdev,
unsigned int i;
/* for now there is just one DMA address */
- for_each_sg(buf_slot->sgt[SMC_SINGLE_LINK].sgl, sg,
- buf_slot->sgt[SMC_SINGLE_LINK].nents, i) {
+ for_each_sg(buf_slot->sgt[lnk->link_idx].sgl, sg,
+ buf_slot->sgt[lnk->link_idx].nents, i) {
if (!sg_dma_len(sg))
break;
- ib_dma_sync_single_for_cpu(smcibdev->ibdev,
+ ib_dma_sync_single_for_cpu(lnk->smcibdev->ibdev,
sg_dma_address(sg),
sg_dma_len(sg),
data_direction);
@@ -447,7 +448,7 @@ void smc_ib_sync_sg_for_cpu(struct smc_ib_device *smcibdev,
}
/* synchronize buffer usage for device access */
-void smc_ib_sync_sg_for_device(struct smc_ib_device *smcibdev,
+void smc_ib_sync_sg_for_device(struct smc_link *lnk,
struct smc_buf_desc *buf_slot,
enum dma_data_direction data_direction)
{
@@ -455,11 +456,11 @@ void smc_ib_sync_sg_for_device(struct smc_ib_device *smcibdev,
unsigned int i;
/* for now there is just one DMA address */
- for_each_sg(buf_slot->sgt[SMC_SINGLE_LINK].sgl, sg,
- buf_slot->sgt[SMC_SINGLE_LINK].nents, i) {
+ for_each_sg(buf_slot->sgt[lnk->link_idx].sgl, sg,
+ buf_slot->sgt[lnk->link_idx].nents, i) {
if (!sg_dma_len(sg))
break;
- ib_dma_sync_single_for_device(smcibdev->ibdev,
+ ib_dma_sync_single_for_device(lnk->smcibdev->ibdev,
sg_dma_address(sg),
sg_dma_len(sg),
data_direction);
@@ -467,15 +468,15 @@ void smc_ib_sync_sg_for_device(struct smc_ib_device *smcibdev,
}
/* Map a new TX or RX buffer SG-table to DMA */
-int smc_ib_buf_map_sg(struct smc_ib_device *smcibdev,
+int smc_ib_buf_map_sg(struct smc_link *lnk,
struct smc_buf_desc *buf_slot,
enum dma_data_direction data_direction)
{
int mapped_nents;
- mapped_nents = ib_dma_map_sg(smcibdev->ibdev,
- buf_slot->sgt[SMC_SINGLE_LINK].sgl,
- buf_slot->sgt[SMC_SINGLE_LINK].orig_nents,
+ mapped_nents = ib_dma_map_sg(lnk->smcibdev->ibdev,
+ buf_slot->sgt[lnk->link_idx].sgl,
+ buf_slot->sgt[lnk->link_idx].orig_nents,
data_direction);
if (!mapped_nents)
return -ENOMEM;
@@ -483,18 +484,18 @@ int smc_ib_buf_map_sg(struct smc_ib_device *smcibdev,
return mapped_nents;
}
-void smc_ib_buf_unmap_sg(struct smc_ib_device *smcibdev,
+void smc_ib_buf_unmap_sg(struct smc_link *lnk,
struct smc_buf_desc *buf_slot,
enum dma_data_direction data_direction)
{
- if (!buf_slot->sgt[SMC_SINGLE_LINK].sgl->dma_address)
+ if (!buf_slot->sgt[lnk->link_idx].sgl->dma_address)
return; /* already unmapped */
- ib_dma_unmap_sg(smcibdev->ibdev,
- buf_slot->sgt[SMC_SINGLE_LINK].sgl,
- buf_slot->sgt[SMC_SINGLE_LINK].orig_nents,
+ ib_dma_unmap_sg(lnk->smcibdev->ibdev,
+ buf_slot->sgt[lnk->link_idx].sgl,
+ buf_slot->sgt[lnk->link_idx].orig_nents,
data_direction);
- buf_slot->sgt[SMC_SINGLE_LINK].sgl->dma_address = 0;
+ buf_slot->sgt[lnk->link_idx].sgl->dma_address = 0;
}
long smc_ib_setup_per_ibdev(struct smc_ib_device *smcibdev)
@@ -574,13 +575,23 @@ static void smc_ib_add_dev(struct ib_device *ibdev)
/* trigger reading of the port attributes */
port_cnt = smcibdev->ibdev->phys_port_cnt;
+ pr_warn_ratelimited("smc: adding ib device %s with port count %d\n",
+ smcibdev->ibdev->name, port_cnt);
for (i = 0;
i < min_t(size_t, port_cnt, SMC_MAX_PORTS);
i++) {
set_bit(i, &smcibdev->port_event_mask);
/* determine pnetids of the port */
- smc_pnetid_by_dev_port(ibdev->dev.parent, i,
- smcibdev->pnetid[i]);
+ if (smc_pnetid_by_dev_port(ibdev->dev.parent, i,
+ smcibdev->pnetid[i]))
+ smc_pnetid_by_table_ib(smcibdev, i + 1);
+ pr_warn_ratelimited("smc: ib device %s port %d has pnetid "
+ "%.16s%s\n",
+ smcibdev->ibdev->name, i + 1,
+ smcibdev->pnetid[i],
+ smcibdev->pnetid_by_user[i] ?
+ " (user defined)" :
+ "");
}
schedule_work(&smcibdev->port_event_work);
}
@@ -597,6 +608,8 @@ static void smc_ib_remove_dev(struct ib_device *ibdev, void *client_data)
spin_lock(&smc_ib_devices.lock);
list_del_init(&smcibdev->list); /* remove from smc_ib_devices */
spin_unlock(&smc_ib_devices.lock);
+ pr_warn_ratelimited("smc: removing ib device %s\n",
+ smcibdev->ibdev->name);
smc_smcr_terminate_all(smcibdev);
smc_ib_cleanup_per_ibdev(smcibdev);
ib_unregister_event_handler(&smcibdev->event_handler);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.