From: Damien Le Moal <dlemoal@kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>, linux-pci@vger.kernel.org
Cc: "Rick Wertenbroek" <rick.wertenbroek@gmail.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Kishon Vijay Abraham I" <kishon@kernel.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>
Subject: [PATCH v5 06/17] PCI: epf-test: Simplify read/write/copy test functions
Date: Sat, 15 Apr 2023 11:35:31 +0900 [thread overview]
Message-ID: <20230415023542.77601-7-dlemoal@kernel.org> (raw)
In-Reply-To: <20230415023542.77601-1-dlemoal@kernel.org>
The function pci_epf_test_cmd_handler() uses the register BAR address
as a pointer to a struct pci_epf_test_reg to determine the command sent
by the host and to execute the test function accordingly. There is no
need for doing this assignment again in each of the read, write and
copy test functions. We can simply pass the reg pointer as an argument
to the functions pci_epf_test_write(), pci_epf_test_read() and
pci_epf_test_copy().
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
---
drivers/pci/endpoint/functions/pci-epf-test.c | 21 ++++++++-----------
1 file changed, 9 insertions(+), 12 deletions(-)
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 7cdc6c915ef5..b8b178ac7cda 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -325,7 +325,8 @@ static void pci_epf_test_print_rate(const char *ops, u64 size,
(u64)ts.tv_sec, (u32)ts.tv_nsec, rate / 1024);
}
-static int pci_epf_test_copy(struct pci_epf_test *epf_test)
+static int pci_epf_test_copy(struct pci_epf_test *epf_test,
+ struct pci_epf_test_reg *reg)
{
int ret;
bool use_dma;
@@ -337,8 +338,6 @@ static int pci_epf_test_copy(struct pci_epf_test *epf_test)
struct pci_epf *epf = epf_test->epf;
struct device *dev = &epf->dev;
struct pci_epc *epc = epf->epc;
- enum pci_barno test_reg_bar = epf_test->test_reg_bar;
- struct pci_epf_test_reg *reg = epf_test->reg[test_reg_bar];
src_addr = pci_epc_mem_alloc_addr(epc, &src_phys_addr, reg->size);
if (!src_addr) {
@@ -424,7 +423,8 @@ static int pci_epf_test_copy(struct pci_epf_test *epf_test)
return ret;
}
-static int pci_epf_test_read(struct pci_epf_test *epf_test)
+static int pci_epf_test_read(struct pci_epf_test *epf_test,
+ struct pci_epf_test_reg *reg)
{
int ret;
void __iomem *src_addr;
@@ -438,8 +438,6 @@ static int pci_epf_test_read(struct pci_epf_test *epf_test)
struct device *dev = &epf->dev;
struct pci_epc *epc = epf->epc;
struct device *dma_dev = epf->epc->dev.parent;
- enum pci_barno test_reg_bar = epf_test->test_reg_bar;
- struct pci_epf_test_reg *reg = epf_test->reg[test_reg_bar];
src_addr = pci_epc_mem_alloc_addr(epc, &phys_addr, reg->size);
if (!src_addr) {
@@ -514,7 +512,8 @@ static int pci_epf_test_read(struct pci_epf_test *epf_test)
return ret;
}
-static int pci_epf_test_write(struct pci_epf_test *epf_test)
+static int pci_epf_test_write(struct pci_epf_test *epf_test,
+ struct pci_epf_test_reg *reg)
{
int ret;
void __iomem *dst_addr;
@@ -527,8 +526,6 @@ static int pci_epf_test_write(struct pci_epf_test *epf_test)
struct device *dev = &epf->dev;
struct pci_epc *epc = epf->epc;
struct device *dma_dev = epf->epc->dev.parent;
- enum pci_barno test_reg_bar = epf_test->test_reg_bar;
- struct pci_epf_test_reg *reg = epf_test->reg[test_reg_bar];
dst_addr = pci_epc_mem_alloc_addr(epc, &phys_addr, reg->size);
if (!dst_addr) {
@@ -673,7 +670,7 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
}
if (command & COMMAND_WRITE) {
- ret = pci_epf_test_write(epf_test);
+ ret = pci_epf_test_write(epf_test, reg);
if (ret)
reg->status |= STATUS_WRITE_FAIL;
else
@@ -684,7 +681,7 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
}
if (command & COMMAND_READ) {
- ret = pci_epf_test_read(epf_test);
+ ret = pci_epf_test_read(epf_test, reg);
if (!ret)
reg->status |= STATUS_READ_SUCCESS;
else
@@ -695,7 +692,7 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
}
if (command & COMMAND_COPY) {
- ret = pci_epf_test_copy(epf_test);
+ ret = pci_epf_test_copy(epf_test, reg);
if (!ret)
reg->status |= STATUS_COPY_SUCCESS;
else
--
2.39.2
next prev parent reply other threads:[~2023-04-15 2:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-15 2:35 [PATCH v5 00/17] PCI endpoint fixes and improvements Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 01/17] PCI: endpoint: Automatically create a function specific attributes group Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 02/17] PCI: endpoint: Move pci_epf_type_add_cfs() code Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 03/17] PCI: epf-test: Fix DMA transfer completion initialization Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 04/17] PCI: epf-test: Fix DMA transfer completion detection Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 05/17] PCI: epf-test: Use dmaengine_submit() to initiate DMA transfer Damien Le Moal
2023-04-15 2:35 ` Damien Le Moal [this message]
2023-04-15 2:35 ` [PATCH v5 07/17] PCI: epf-test: Simplify pci_epf_test_raise_irq() Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 08/17] PCI: epf-test: Simplify IRQ test commands execution Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 09/17] PCI: epf-test: Improve handling of command and status registers Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 10/17] PCI: epf-test: Cleanup pci_epf_test_cmd_handler() Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 11/17] PCI: epf-test: Cleanup request result handling Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 12/17] PCI: epf-test: Simplify DMA support checks Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 13/17] PCI: epf-test: Simplify transfers result print Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 14/17] misc: pci_endpoint_test: Free IRQs before removing the device Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 15/17] misc: pci_endpoint_test: Re-init completion for every test Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 16/17] misc: pci_endpoint_test: Do not write status in IRQ handler Damien Le Moal
2023-04-15 2:35 ` [PATCH v5 17/17] misc: pci_endpoint_test: Simplify pci_endpoint_test_msi_irq() Damien Le Moal
2023-04-21 10:10 ` [PATCH v5 00/17] PCI endpoint fixes and improvements Lorenzo Pieralisi
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