Driver has to do a 4gb boundary check using the pool's
dma address instead of using a virtual address.
Fixes: d6adc251dd2f("mpt3sas: Force PCIe scatterlist allocations to be within same 4 GB region")
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>
---
drivers/scsi/mpt3sas/mpt3sas_base.c | 25 ++++++++++++-------------
1 file changed, 12 insertions(+), 13 deletions(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index ebb61b47dc2f..a10ceaa8f881 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -5723,14 +5723,13 @@ _base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
*/
static int
-mpt3sas_check_same_4gb_region(long reply_pool_start_address, u32 pool_sz)
+mpt3sas_check_same_4gb_region(dma_addr_t start_address, u32 pool_sz)
{
- long reply_pool_end_address;
+ dma_addr_t end_address;
- reply_pool_end_address = reply_pool_start_address + pool_sz;
+ end_address = start_address + pool_sz - 1;
- if (upper_32_bits(reply_pool_start_address) ==
- upper_32_bits(reply_pool_end_address))
+ if (upper_32_bits(start_address) == upper_32_bits(end_address))
return 1;
else
return 0;
@@ -5791,7 +5790,7 @@ _base_allocate_pcie_sgl_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz)
}
if (!mpt3sas_check_same_4gb_region(
- (long)ioc->pcie_sg_lookup[i].pcie_sgl, sz)) {
+ ioc->pcie_sg_lookup[i].pcie_sgl_dma, sz)) {
ioc_err(ioc, "PCIE SGLs are not in same 4G !! pcie sgl (0x%p) dma = (0x%llx)\n",
ioc->pcie_sg_lookup[i].pcie_sgl,
(unsigned long long)
@@ -5846,8 +5845,8 @@ _base_allocate_chain_dma_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz)
GFP_KERNEL, &ctr->chain_buffer_dma);
if (!ctr->chain_buffer)
return -EAGAIN;
- if (!mpt3sas_check_same_4gb_region((long)
- ctr->chain_buffer, ioc->chain_segment_sz)) {
+ if (!mpt3sas_check_same_4gb_region(
+ ctr->chain_buffer_dma, ioc->chain_segment_sz)) {
ioc_err(ioc,
"Chain buffers are not in same 4G !!! Chain buff (0x%p) dma = (0x%llx)\n",
ctr->chain_buffer,
@@ -5883,7 +5882,7 @@ _base_allocate_sense_dma_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz)
GFP_KERNEL, &ioc->sense_dma);
if (!ioc->sense)
return -EAGAIN;
- if (!mpt3sas_check_same_4gb_region((long)ioc->sense, sz)) {
+ if (!mpt3sas_check_same_4gb_region(ioc->sense_dma, sz)) {
dinitprintk(ioc, pr_err(
"Bad Sense Pool! sense (0x%p) sense_dma = (0x%llx)\n",
ioc->sense, (unsigned long long) ioc->sense_dma));
@@ -5916,7 +5915,7 @@ _base_allocate_reply_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz)
&ioc->reply_dma);
if (!ioc->reply)
return -EAGAIN;
- if (!mpt3sas_check_same_4gb_region((long)ioc->reply_free, sz)) {
+ if (!mpt3sas_check_same_4gb_region(ioc->reply_dma, sz)) {
dinitprintk(ioc, pr_err(
"Bad Reply Pool! Reply (0x%p) Reply dma = (0x%llx)\n",
ioc->reply, (unsigned long long) ioc->reply_dma));
@@ -5951,7 +5950,7 @@ _base_allocate_reply_free_dma_pool(struct MPT3SAS_ADAPTER *ioc, u32 sz)
GFP_KERNEL, &ioc->reply_free_dma);
if (!ioc->reply_free)
return -EAGAIN;
- if (!mpt3sas_check_same_4gb_region((long)ioc->reply_free, sz)) {
+ if (!mpt3sas_check_same_4gb_region(ioc->reply_free_dma, sz)) {
dinitprintk(ioc,
pr_err("Bad Reply Free Pool! Reply Free (0x%p) Reply Free dma = (0x%llx)\n",
ioc->reply_free, (unsigned long long) ioc->reply_free_dma));
@@ -5990,7 +5989,7 @@ _base_allocate_reply_post_free_array(struct MPT3SAS_ADAPTER *ioc,
GFP_KERNEL, &ioc->reply_post_free_array_dma);
if (!ioc->reply_post_free_array)
return -EAGAIN;
- if (!mpt3sas_check_same_4gb_region((long)ioc->reply_post_free_array,
+ if (!mpt3sas_check_same_4gb_region(ioc->reply_post_free_array_dma,
reply_post_free_array_sz)) {
dinitprintk(ioc, pr_err(
"Bad Reply Free Pool! Reply Free (0x%p) Reply Free dma = (0x%llx)\n",
@@ -6055,7 +6054,7 @@ base_alloc_rdpq_dma_pool(struct MPT3SAS_ADAPTER *ioc, int sz)
* resources and set DMA mask to 32 and allocate.
*/
if (!mpt3sas_check_same_4gb_region(
- (long)ioc->reply_post[i].reply_post_free, sz)) {
+ ioc->reply_post[i].reply_post_free_dma, sz)) {
dinitprintk(ioc,
ioc_err(ioc, "bad Replypost free pool(0x%p)"
"reply_post_free_dma = (0x%llx)\n",
--
2.27.0
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