From: longli@linuxonhyperv.com
To: "K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,
edumazet@google.com, shiraz.saleem@intel.com,
Ajay Sharma <sharmaajay@microsoft.com>
Cc: linux-hyperv@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
Long Li <longli@microsoft.com>
Subject: [Patch v5 02/12] net: mana: Record the physical address for doorbell page region
Date: Tue, 30 Aug 2022 17:34:21 -0700 [thread overview]
Message-ID: <1661906071-29508-3-git-send-email-longli@linuxonhyperv.com> (raw)
In-Reply-To: <1661906071-29508-1-git-send-email-longli@linuxonhyperv.com>
From: Long Li <longli@microsoft.com>
For supporting RDMA device with multiple user contexts with their
individual doorbell pages, record the start address of doorbell page
region for use by the RDMA driver to allocate user context doorbell IDs.
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Long Li <longli@microsoft.com>
---
drivers/net/ethernet/microsoft/mana/gdma.h | 2 ++
drivers/net/ethernet/microsoft/mana/gdma_main.c | 4 ++++
2 files changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/microsoft/mana/gdma.h b/drivers/net/ethernet/microsoft/mana/gdma.h
index d815d323be87..c724ca410fcb 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma.h
+++ b/drivers/net/ethernet/microsoft/mana/gdma.h
@@ -350,9 +350,11 @@ struct gdma_context {
struct completion eq_test_event;
u32 test_event_eq_id;
+ phys_addr_t bar0_pa;
void __iomem *bar0_va;
void __iomem *shm_base;
void __iomem *db_page_base;
+ phys_addr_t phys_db_page_base;
u32 db_page_size;
/* Shared memory chanenl (used to bootstrap HWC) */
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index 49b85ca578b0..9fafaa0c8e76 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -27,6 +27,9 @@ static void mana_gd_init_registers(struct pci_dev *pdev)
gc->db_page_base = gc->bar0_va +
mana_gd_r64(gc, GDMA_REG_DB_PAGE_OFFSET);
+ gc->phys_db_page_base = gc->bar0_pa +
+ mana_gd_r64(gc, GDMA_REG_DB_PAGE_OFFSET);
+
gc->shm_base = gc->bar0_va + mana_gd_r64(gc, GDMA_REG_SHM_OFFSET);
}
@@ -1335,6 +1338,7 @@ static int mana_gd_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
mutex_init(&gc->eq_test_event_mutex);
pci_set_drvdata(pdev, gc);
+ gc->bar0_pa = pci_resource_start(pdev, 0);
bar0_va = pci_iomap(pdev, bar, 0);
if (!bar0_va)
--
2.17.1
next prev parent reply other threads:[~2022-08-31 0:34 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-31 0:34 [Patch v5 00/12] Introduce Microsoft Azure Network Adapter (MANA) RDMA driver longli
2022-08-31 0:34 ` [Patch v5 01/12] net: mana: Add support for auxiliary device longli
2022-09-20 22:04 ` Haiyang Zhang
2022-08-31 0:34 ` longli [this message]
2022-09-20 22:04 ` [Patch v5 02/12] net: mana: Record the physical address for doorbell page region Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 03/12] net: mana: Handle vport sharing between devices longli
2022-09-20 22:05 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 04/12] net: mana: Add functions for allocating doorbell page from GDMA longli
2022-09-20 22:05 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 05/12] net: mana: Set the DMA device max segment size longli
2022-09-20 22:06 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 06/12] net: mana: Export Work Queue functions for use by RDMA driver longli
2022-09-20 22:06 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 07/12] net: mana: Record port number in netdev longli
2022-09-20 22:06 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 08/12] net: mana: Move header files to a common location longli
2022-09-20 22:07 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 09/12] net: mana: Define max values for SGL entries longli
2022-09-20 22:07 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 10/12] net: mana: Define and process GDMA response code GDMA_STATUS_MORE_ENTRIES longli
2022-09-20 22:07 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 11/12] net: mana: Define data structures for protection domain and memory registration longli
2022-09-20 17:10 ` Dexuan Cui
2022-09-20 22:08 ` Haiyang Zhang
2022-08-31 0:34 ` [Patch v5 12/12] RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter longli
2022-09-20 17:54 ` Dexuan Cui
2022-09-20 18:22 ` Long Li
2022-09-21 16:12 ` Jason Gunthorpe
2022-09-21 18:52 ` Long Li
2022-09-09 21:41 ` [Patch v5 00/12] Introduce Microsoft Azure Network Adapter (MANA) RDMA driver Long Li
2022-09-09 23:51 ` Jason Gunthorpe
2022-09-20 16:54 ` Leon Romanovsky
2022-09-20 22:20 ` Long Li
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